L4931CD50-TR [STMICROELECTRONICS]
Very low drop voltage regulators with inhibit; 非常低压降稳压器与抑制型号: | L4931CD50-TR |
厂家: | ST |
描述: | Very low drop voltage regulators with inhibit |
文件: | 总36页 (文件大小:906K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
L4931ABxx
L4931Cxx
Very low drop voltage regulators with inhibit
Features
■ Very low dropout voltage (0.4 V)
■ Very low quiescent current
■ (Typ. 50 µA in off mode, 600 µA in on mode)
■ Output current up to 250 mA
■ Logic-controlled electronic shutdown
■ Output voltages of 2.7; 3.3; 3.5; 5; 8; 12 V
■ Automotive Grade product: 2.7 V, 3.3 V, 3.5 V
TO-92
TO-220
V
only in SO-8 package
OUT
■ Internal current and thermal limit
■ Only 2.2 µF for stability
PPAK
SO-8
DPAK
■ Available in 1 ꢀ (Aꢁ) or 2 ꢀ (C) selection at
25 °C
■ Supply voltage rejection: 70 dꢁ typ. for 5 V
This means that when the device is used as a
local regulator, it is possible to put a part of the
board in standby, decreasing the total power
consumption. It requires only a 2.2 µF capacitor
for stability allowing space and cost saving.
version
■ Temperature range: -40 to 125 °C
Description
The L4931 is available as Automotive Grade in
SO-8 package only, for the options of output
voltages whose commercial Part Numbers are
shown in the Table 19 on page 34 (order codes).
These devices are qualified according to the
specification AEC-Q100 of the Automotive
market, in the temperature range -40 °C to
125 °C, and the statistical tests PAT, SYL, SꢁL are
performed.
The L4931Aꢁxx L4931Cxx are very Low Drop
regulators available in TO-220, SO-8, DPAK,
PPAK and TO-92 packages and in a wide range of
output voltages.
The very low drop voltage (0.4 V) and the very low
quiescent current make them particularly suitable
for low noise, low power applications and
specially in battery powered systems.
A TTL compatible shutdown logic control function
is available in PPAK and SO-8 packages.
Table 1.
Device summary
Part numbers
L4931AꢁXX27
L4931CXX33
L4931AꢁXX35
L4931CXX35
L4931AꢁXX50
L4931CXX50
L4931AꢁXX80
L4931CXX80
L4931AꢁXX120
L4931CXX120
L4931CXX27
L4931AꢁXX33
August 2008
Rev 17
1/36
www.st.com
36
Contents
L4931ABxx - L4931Cxx
Contents
1
2
3
4
5
6
7
8
9
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2/36
L4931ABxx - L4931Cxx
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Line regulation vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Dropout voltage vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Supply current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Supply current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Short circuit current vs dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SVR vs input voltage signal frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3/36
List of tables
L4931ABxx - L4931Cxx
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics of L4931Aꢁxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics of L4931Cxx27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . . 11
Electrical characteristics of L4931Aꢁxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical characteristics of L4931Cxx33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . . 14
Electrical characteristics of L4931Aꢁxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical characteristics of L4931Aꢁxx35-TRY (Automotive Grade) . . . . . . . . . . . . . . . . . 16
Electrical characteristics of L4931Cxx35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical characteristics of L4931Aꢁxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical characteristics of L4931Cxx50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electrical characteristics of L4931Aꢁxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Electrical characteristics of L4931Cxx80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrical characteristics of L4931Aꢁxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrical characteristics of L4931Cxx120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4/36
L4931ABxx - L4931Cxx
Diagram
1
Diagram
Figure 1.
Schematic diagram
5/36
Pin configuration
L4931ABxx - L4931Cxx
2
Pin configuration
Figure 2.
Pin connections (top view)
TO-220
SO-8
PPAK
DPAK
PIN 1 = VOUT
PIN 2 = GND
PIN 3 = VIN
ꢁOTTOM VIEW
TO-92
6/36
L4931ABxx - L4931Cxx
Maximum ratings
3
Maximum ratings
Table 2.
Absolute maximum ratings
Parameter
Symbol
Value
Unit
VI
IO
DC Input voltage
20
V
Output current
Internally limited
Internally limited
-40 to 150
mA
mW
°C
PD
Power dissipation
TSTG
TOP
Storage temperature range
Operating junction temperature range
-40 to 125
°C
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied
Table 3.
Symbol
Thermal data
Parameter
TO-220
SO-8
DPAK
PPAK
TO-92
Unit
RthJC Thermal resistance junction-case
RthJA Thermal resistance junction-ambient
3
20
55
8
8
°C/W
°C/W
50
100
100
200
7/36
Application circuit
L4931ABxx - L4931Cxx
4
Application circuit
Figure 3.
Test circuit
8/36
L4931ABxx - L4931Cxx
Electrical characteristics
5
Electrical characteristics
Table 4.
Electrical characteristics of L4931ABxx27 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 4.7 V
Min.
Typ.
Max.
Unit
I
2.673
2.646
2.7
2.727
2.754
20
VO
V
IO = 5 mA, VI = 4.7 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3
mA
mV
mV
ΔVO
ΔVO
VI = 3.4 to 20 V, IO = 0.5 mA
VI = 3.6 V, IO = 0.5 to 250 mA
VI = 3.6 to 20 V, IO = 0 mA
VI = 3.6 to 20 V, IO = 250 mA
VI = 6 V
15
15
1
Load regulation (1)
3
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
74
71
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 4.6 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
9/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 5.
Electrical characteristics of L4931Cxx27 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 4.7 V
Min.
Typ.
Max.
Unit
I
2.646
2.592
2.7
2.754
2.808
20
VO
V
IO = 5 mA, VI = 4.7 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3
mA
mV
mV
ΔVO
ΔVO
VI = 3.4 to 20 V, IO = 0.5 mA
VI = 3.6 V, IO = 0.5 to 250 mA
VI = 3.6 to 20 V, IO = 0 mA
VI = 3.6 to 20 V, IO = 250 mA
VI = 6 V
18
18
1
Load regulation (1)
3
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
74
71
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 4.6 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
10/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 6.
Electrical characteristics of L4931Cxx27-TRY (Automotive Grade) (refer to the test
circuits, T = -40 to 12 5°C, C = 0.1 µF, C = 2.2 µF unless otherwise specified).
A
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
I
O = 5 mA, VI = 4.7 V, TA = 25°C
2.646
2.592
2.7
2.754
2.808
20
VO
Output voltage
V
IO = 5 mA, VI = 4.7 V
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
TA = 25°C
300
mA
mV
mV
ΔVO
ΔVO
VI = 3.4 to 20 V, IO = 0.5 mA
VI = 3.6 V, IO = 0.5 to 250 mA
VI = 3.6 to 20 V, IO = 0 mA
VI = 3.6 to 20 V, IO = 250 mA
VI = 6 V
20
38
1
Load regulation
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
100
f = 120 Hz
74
71
55
50
0.4
I
O = 5 mA
SVR Supply voltage rejection
VI = 4.6 1 V
TA = 25°C
f = 1 kHz
dꢁ
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
ꢁ = 10 Hz to 100 kHz, TA = 25°C
µV
V
I
O = 250 mA, TA = 25°C
O = 250 mA
0.6
I
0.82
0.82
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
V
2
2
V
VI = 6 V, VC = 6 V, TA = 25°C
10
10
µA
Output bypass
capacitance
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA,
TA = 25°C
CO
µF
11/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 7.
Electrical characteristics of L4931ABxx33 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 5.3 V
Min.
Typ.
Max.
Unit
I
3.267
3.234
3.3
3.333
3.366
20
VO
V
IO = 5 mA, VI = 5.3 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3
mA
mV
mV
ΔVO
ΔVO
VI = 4 to 20 V, IO = 0.5 mA
VI = 4.2 V, IO = 0.5 to 250 mA
VI = 4.2 to 20 V, IO = 0 mA
VI = 4.2 to 20 V, IO = 250 mA
VI = 6 V
15
15
1
Load regulation (1)
3
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
73
70
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 5.2 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
12/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 8.
Electrical characteristics of L4931Cxx33 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 5.3 V
Min.
Typ.
Max.
Unit
I
3.234
3.168
3.3
3.366
3.432
20
VO
V
IO = 5 mA, VI = 5.3 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3
mA
mV
mV
ΔVO
ΔVO
VI = 4.1 to 20 V, IO = 0.5 mA
VI = 4.3 V, IO = 0.5 to 250 mA
VI = 4.3 to 20 V, IO = 0 mA
VI = 4.3 to 20 V, IO = 250 mA
VI = 6 V
18
18
1
Load regulation (1)
3
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
73
70
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 5.3 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
13/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 9.
Electrical characteristics of L4931Cxx33-TRY (Automotive Grade) (refer to the test
circuits, T = -40 to 125 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified).
A
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
I
O = 5 mA, VI = 5.3 V, TA = 25°C
3.234
3.168
3.3
3.366
3.432
20
VO
Output voltage
V
IO = 5 mA, VI = 5.3 V
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
TA = 25°C
300
mA
mV
mV
ΔVO
ΔVO
VI = 4.1 to 20 V, IO = 0.5 mA
VI = 4.3 V, IO = 0.5 to 250 mA
VI = 4.3 to 20 V, IO = 0 mA
VI = 4.3 to 20 V, IO = 250 mA
VI = 6 V
20
38
1
Load regulation
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
100
f = 120 Hz
73
70
55
50
0.4
I
O = 5 mA
SVR Supply voltage rejection
VI = 5.3 1 V
TA = 25°C
f = 1 kHz
dꢁ
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
ꢁ = 10 Hz to 100 kHz, TA = 25°C
µV
V
I
O = 250 mA, TA = 25°C
O = 250 mA
0.6
I
0.82
0.82
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
V
2
2
V
VI = 6 V, VC = 6 V, TA = 25°C
10
10
µA
Output bypass
capacitance
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA,
TA = 25°C
CO
µF
14/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 10. Electrical characteristics of L4931ABxx35 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 5.5 V
Min.
Typ.
Max.
Unit
I
3.465
3.43
3.5
3.535
3.57
20
VO
V
IO = 5 mA, VI = 5.5 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3
mA
mV
mV
ΔVO
ΔVO
VI = 4.2 to 20 V, IO = 0.5 mA
VI = 4.4 V, IO = 0.5 to 250 mA
VI = 4.4 to 20 V, IO = 0 mA
VI = 4.4 to 20 V, IO = 250 mA
VI = 6 V
15
15
1
Load regulation (1)
3
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
73
70
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 5.4 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
15/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 11. Electrical characteristics of L4931ABxx35-TRY (Automotive Grade) (refer to the test
circuits, T = -40 to 125 °C, C = 0.1 µF, C = 2.2 µF unless otherwise specified).
A
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
I
O = 5 mA, VI = 5.5 V, TA = 25°C
3.465
3.43
3.5
3.535
3.57
20
VO
Output voltage
V
IO = 5 mA, VI = 5.5 V
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
TA = 25°C
300
mA
mV
mV
ΔVO
ΔVO
VI = 4.2 to 20 V, IO = 0.5 mA
VI = 4.4 V, IO = 0.5 to 250 mA
VI = 4.4 to 20 V, IO = 0 mA
VI = 4.4 to 20 V, IO = 250 mA
VI = 6 V
17
35
1
Load regulation
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
100
f = 120 Hz
73
70
55
50
0.4
I
O = 5 mA
SVR Supply voltage rejection
VI = 5.4 1 V
TA = 25°C
f = 1 kHz
dꢁ
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage
ꢁ = 10 Hz to 100 kHz, TA = 25°C
µV
V
I
O = 250 mA, TA = 25°C
O = 250 mA
0.6
I
0.82
0.82
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
V
2
2
V
VI = 6 V, VC = 6 V, TA = 25°C
10
10
µA
Output bypass
capacitance
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA,
TA = 25°C
CO
µF
16/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 12. Electrical characteristics of L4931Cxx35 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 5.5 V
Min.
Typ.
Max.
Unit
I
3.43
3.36
3.5
3.57
3.64
20
VO
V
IO = 5 mA, VI = 5.5 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3
mA
mV
mV
ΔVO
ΔVO
VI = 4.3 to 20 V, IO = 0.5 mA
VI = 4.5 V, IO = 0.5 to 250 mA
VI = 4.5 to 20 V, IO = 0 mA
VI = 4.5 to 20 V, IO = 250 mA
VI = 6 V
18
18
1
Load regulation (1)
3
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
73
70
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 5.5 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA= -40 to 125°C
TA= -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
17/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 13. Electrical characteristics of L4931ABxx50 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 7 V
Min.
Typ.
Max.
Unit
I
4.95
4.9
5
5.05
5.1
20
VO
V
IO = 5 mA, VI = 7 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3.5
3
mA
mV
mV
ΔVO
ΔVO
VI = 5.8 to 20 V, IO = 0.5 mA
VI = 6 V, IO = 0.5 to 250 mA
VI = 6 to 20 V, IO = 0 mA
VI = 6 to 20 V, IO = 250 mA
VI = 6 V
17.5
15
1
Load regulation (1)
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
70
67
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 7 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
18/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 14. Electrical characteristics of L4931Cxx50 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 7 V
Min.
Typ.
Max.
Unit
I
4.9
4.8
5
5.1
5.2
20
VO
V
IO = 5 mA, VI = 7 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
3.5
3
mA
mV
mV
ΔVO
ΔVO
VI = 5.8 to 20 V, IO = 0.5 mA
VI = 6 V, IO = 0.5 to 250 mA
VI = 6 to 20 V, IO = 0 mA
VI = 6 to 20 V, IO = 250 mA
VI = 6 V
17.5
15
1
Load regulation (1)
0.6
4
Quiescent current
ON MODE
mA
µA
Id
6
OFF MODE
50
70
67
55
50
0.4
100
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 7 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
19/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 15. Electrical characteristics of L4931ABxx80 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 10 V
Min.
Typ.
Max.
Unit
I
7.92
7.84
8
8.08
8.16
20
VO
V
IO = 5 mA, VI = 10 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
4
mA
mV
mV
ΔVO
ΔVO
VI = 8.8 to 20 V, IO = 0.5 mA
VI = 9 V, IO = 0.5 to 250 mA
VI = 9 to 20 V, IO = 0 mA
VI = 9 to 20 V, IO = 250 mA
VI = 6 V
20
15
Load regulation (1)
3
0.8
4.5
70
67
64
55
50
0.4
1.6
7
Quiescent current
ON MODE
mA
µA
Id
OFF MODE
140
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 10 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
20/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 16. Electrical characteristics of L4931Cxx80 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 10 V
Min.
Typ.
Max.
Unit
I
7.84
7.68
8
8.16
8.32
20
VO
V
IO = 5 mA, VI = 10 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
4
mA
mV
mV
ΔVO
ΔVO
VI = 8.9 to 20 V, IO = 0.5 mA
VI = 9.1 V, IO = 0.5 to 250 mA
VI = 9.1 to 20 V, IO = 0 mA
VI = 9.1 to 20 V, IO = 250 mA
VI = 6 V
24
18
Load regulation (1)
3
0.8
4.5
70
67
64
55
50
0.4
1.6
7
Quiescent current
ON MODE
mA
µA
Id
OFF MODE
140
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 10.1 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
21/36
Electrical characteristics
L4931ABxx - L4931Cxx
Table 17. Electrical characteristics of L4931ABxx120 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 14 V
Min.
Typ.
Max.
Unit
I
11.88
11.76
12
12.12
12.24
20
VO
V
IO = 5 mA, VI = 14 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
4
mA
mV
mV
ΔVO
ΔVO
VI = 12.8 to 20 V, IO = 0.5 mA
VI = 13 V, IO = 0.5 to 250 mA
VI = 13 to 20 V, IO = 0 mA
VI = 13 to 20 V, IO = 250 mA
VI = 6 V
20
15
Load regulation (1)
3
0.8
4.5
90
64
61
55
50
0.4
1.6
7
Quiescent current
ON MODE
mA
µA
Id
OFF MODE
180
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 14 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
22/36
L4931ABxx - L4931Cxx
Electrical characteristics
Table 18. Electrical characteristics of L4931Cxx120 (refer to the test circuits, T = 25 °C,
A
C = 0.1 µF, C = 2.2 µF unless otherwise specified).
I
O
Symbol
Parameter
Output voltage
Test conditions
O = 5 mA, VI = 14 V
Min.
Typ.
Max.
Unit
I
11.76
11.52
12
12.24
12.48
20
VO
V
IO = 5 mA, VI = 14 V, TA=-25 to 85°C
IO = 250 mA
VI
Operating input voltage
Output current limit
Line regulation
V
Iout
300
4
mA
mV
mV
ΔVO
ΔVO
VI = 12.9 to 20 V, IO = 0.5 mA
VI = 13.1 V, IO = 0.5 to 250 mA
VI = 13.1 to 20 V, IO = 0 mA
VI = 13.1 to 20 V, IO = 250 mA
VI = 6 V
24
18
Load regulation (1)
3
0.8
4.5
90
64
61
55
50
0.4
1.6
7
Quiescent current
ON MODE
mA
µA
Id
OFF MODE
180
f = 120 Hz
I
O = 5 mA
SVR Supply voltage rejection
f = 1 kHz
dꢁ
VI = 14.1 1 V
f = 10 kHz
eN
Vd
Output noise voltage
Dropout voltage (1)
ꢁ = 10 Hz to 100 kHz
IO = 250 mA
µV
V
0.6
0.8
0.8
IO = 250 mA, TA= -40 to 125°C
V
VIL
VIH
II
Control input logic low
Control Input Logic High
Control input current
TA = -40 to 125°C
TA = -40 to 125°C
VI = 6 V, VC = 6 V
V
2
2
V
10
10
µA
Output bypass
capacitance
CO
ESR = 0.1 to 10 Ω, IO = 0 to 250 mA
µF
1. For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.
23/36
Typical application
L4931ABxx - L4931Cxx
6
Typical application
Figure 4.
Line regulation vs temperature
Figure 5.
Dropout voltage vs temperature
Figure 6.
Supply current vs input voltage
Figure 7.
Supply current vs temperature
Figure 8.
Short circuit current vs dropout
voltage
Figure 9.
SVR vs input voltage signal
frequency
24/36
L4931ABxx - L4931Cxx
Package mechanical data
7
Package mechanical data
®
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
25/36
Package mechanical data
L4931ABxx - L4931Cxx
TO-220 mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
4.60
1.32
2.72
Min.
0.173
0.048
0.094
Typ.
Max.
0.181
0.051
0.107
A
C
4.40
1.23
2.40
D
D1
E
1.27
0.050
0.49
0.61
1.14
1.14
4.95
2.4
0.70
0.88
1.70
1.70
5.15
2.7
0.019
0.024
0.044
0.044
0.194
0.094
0.393
0.027
0.034
0.067
0.067
0.203
0.106
0.409
F
F1
F2
G
G1
H2
L2
L4
L5
L6
L7
L9
DIA.
10.0
10.40
16.4
0.645
13.0
2.65
15.25
6.2
14.0
2.95
15.75
6.6
0.511
0.104
0.600
0.244
0.137
0.147
0.551
0.116
0.620
0.260
0.154
0.151
3.5
3.93
3.85
3.75
P011C
26/36
L4931ABxx - L4931Cxx
Package mechanical data
TO-92 mechanical data
mm.
mils.
Dim.
Min.
Typ.
Max.
4.95
0.51
4.95
3.94
2.67
1.40
15.49
2.41
1.52
0.56
Min.
170.1
14.2
Typ.
Max.
194.9
20.1
A
b
4.32
0.36
4.45
3.30
2.41
1.14
12.7
2.16
0.92
0.41
D
E
175.2
129.9
94.9
194.9
155.1
105.1
55.1
e
e1
L
44.9
500.0
85.0
609.8
94.9
R
S1
W
α
36.2
59.8
16.1
22.0
5°
5°
0102782/D
27/36
Package mechanical data
L4931ABxx - L4931Cxx
PPAK mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
Min.
Typ.
Max.
A
A1
A2
ꢁ
2.2
0.9
2.4
1.1
0.23
0.6
5.4
0.6
0.6
6.2
0.086
0.035
0.001
0.015
0.204
0.017
0.019
0.236
0.094
0.043
0.009
0.023
0.212
0.023
0.023
0.244
0.03
0.4
5.2
ꢁ2
C
0.45
0.48
6
C2
D
D1
E
5.1
0.201
6.4
6.6
0.252
0.260
E1
e
4.7
0.185
1.27
0.050
G
4.9
5.25
2.7
10.1
1
0.193
0.093
0.368
0.206
0.106
0.397
0.039
0.039
G1
H
2.38
9.35
L2
L4
L5
L6
0.8
2.8
0.031
0.6
1
1
0.023
0.039
0.110
0078180-E
28/36
L4931ABxx - L4931Cxx
Package mechanical data
DPAK mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
Min.
Typ.
Max.
A
A1
A2
ꢁ
2.2
0.9
2.4
1.1
0.23
0.9
5.4
0.6
0.6
6.2
0.086
0.035
0.001
0.025
0.204
0.017
0.019
0.236
0.094
0.043
0.009
0.035
0.212
0.023
0.023
0.244
0.03
0.64
5.2
b4
C
0.45
0.48
6
C2
D
D1
E
5.1
0.200
6.4
6.6
0.252
0.260
E1
e
4.7
0.185
0.090
2.28
e1
H
4.4
9.35
1
4.6
0.173
0.368
0.039
0.181
0.397
10.1
L
(L1)
L2
L4
R
2.8
0.8
0.110
0.031
0.6
0°
1
0.023
0.039
8°
0.2
0.008
V2
8°
0°
0068772-F
29/36
Package mechanical data
L4931ABxx - L4931Cxx
SO-8 mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
Min.
Typ.
Max.
A
A1
A2
ꢁ
1.35
0.10
1.10
0.33
0.19
4.80
3.80
1.75
0.053
0.069
0.25
1.65
0.51
0.25
5.00
4.00
0.04
0.010
0.065
0.020
0.010
0.197
0.157
0.043
0.013
0.007
0.189
0.150
C
D
E
e
1.27
0.050
H
5.80
0.25
0.40
6.20
0.50
1.27
0.228
0.010
0.016
0.244
0.020
0.050
h
L
k
8° (max.)
ddd
0.1
0.04
0016023/C
30/36
L4931ABxx - L4931Cxx
Package mechanical data
Tape & reel DPAK-PPAK mechanical data
mm.
Typ.
inch.
Typ.
Dim.
Min.
Max.
330
Min.
Max.
12.992
0.519
A
C
D
12.8
20.2
60
13.0
13.2
0.504
0.795
2.362
0.512
N
T
22.4
7.00
10.60
2.75
4.1
0.882
0.2.76
0.417
0.105
0.161
0.319
Ao
ꢁo
Ko
Po
P
6.80
10.40
2.55
3.9
6.90
10.50
2.65
4.0
0.268
0.409
0.100
0.153
0.311
0.272
0.413
0.104
0.157
0.315
7.9
8.0
8.1
31/36
Package mechanical data
L4931ABxx - L4931Cxx
Tape & reel SO-8 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
330
Min.
Max.
12.992
0.519
A
C
D
12.8
20.2
60
13.2
0.504
0.795
2.362
N
T
22.4
8.5
5.9
2.3
4.1
8.1
0.882
0.335
0.232
0.090
0.161
0.319
Ao
ꢁo
Ko
Po
P
8.1
5.5
2.1
3.9
7.9
0.319
0.216
0.082
0.153
0.311
32/36
L4931ABxx - L4931Cxx
Package mechanical data
Tape & reel for TO-92 mechanical data
mm.
Typ.
inch.
Dim.
Min.
Max.
Min.
Typ.
Max.
A1
T
T1
T2
d
4.80
3.80
1.60
2.30
0.48
0.189
0.150
0.063
0.091
0.019
P0
P2
12.5
5.65
2.44
12.9
7.05
2.94
0.492
0.222
0.096
0.508
0.278
0.116
F1, F2
delta H
W
W0
W1
W2
H
H0
H1
D0
t
L1
delta P
u
Φ1
Φ2
2.54
2
18.00
0.100
0.079
0.709
17.5
5.7
8.5
19.0
6.3
9.25
0.689
0.224
0.335
0.748
0.248
0.364
0.50
18.50
0.20
0.728
18.70
16.50
0.726
0.650
15.50
0.610
0.150
25.00
0.984
3.8
4.2
0.165
0.90
3
1
50
360
30
0.035
0.118
0.039
1.968
14.173
1.181
delta P
T
A1
T2
T1
H1
delta H
H
H0
d
L
W2
l1
W
W0
W1
F1
F2
P0
D0
t
P2
DRAWING NOT IN SCALE
33/36
Order codes
L4931ABxx - L4931Cxx
8
Order codes
Table 19. Order codes
Packages
PPAK
Output
voltage
TO-220
SO-8
DPAK
TO-92
L4931CD27-TR
L4931CD27-TRY(1)
L4931CD33-TR
2.7 V
2.7 V
L4931AꢁPT27TR
L4931CPT33-TR
L4931CDT33-TR
L4931AꢁDT33-TR
L4931CZ33-AP
3.3 V
3.3 V
3.3 V
3.5 V
3.5 V
3.5 V
5 V
L4931AꢁV33
L4931AꢁD33-TR
L4931CD33-TRY(1)
L4931CD35-TR
L4931CDT35-TR
L4931AꢁDT35TR
L4931AꢁD35-TR
L4931AꢁD35-TRY(1)
L4931CD50-TR
L4931CPT50-TR
L4931CPT80-TR
L4931CDT50-TR
L4931AꢁDT50-TR
L4931CDT80-TR
L4931CZ50-AP
L4931AꢁD50-TR
L4931CD80-TR
5 V
8 V
L4931AꢁPT80TR L4931AꢁDT80-TR
L4931CPT120-TR L4931CDT120-TR
L4931AꢁPT120R
8 V
L4931CD120-TR
L4931AꢁD120TR
12 V
12 V
1. Automotive Grade products.
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L4931ABxx - L4931Cxx
Revision history
9
Revision history
Table 20. Document revision history
Date
Revision
Changes
21-Jun-2004
14-Jun-2006
31-Jan-2008
20-Feb-2008
11-Mar-2008
15-Jul-2008
18-Aug-2008
11
12
13
14
15
16
17
Document updating.
Order codes updated.
Added: Table 1 and new order codes for Automotive grade products.
Modified: Table 19 on page 34.
Modified: Table 1 on page 1 and Table 19 on page 34.
Modified: Table 1 on page 1 and Table 19 on page 34.
Modified: Table 19 on page 34.
35/36
L4931ABxx - L4931Cxx
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