L5150BNTR [STMICROELECTRONICS]
5 V low dropout voltage regulator; 5 V低压差稳压器
| 型号： | L5150BNTR |
| 厂家： | 
ST |
| 描述： | 5 V low dropout voltage regulator |
| 文件： | 总20页 (文件大小：500K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L5150BN
5 V low dropout voltage regulator
Features
ꢀ
Max DC supply voltage
Max output voltage tolerance
Max dropout voltage
Output current
VS
ΔVo
Vdp
I0
40 V
2%
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500 mV
150 mA
50 µA(1)
SOT-223
Quiescent current
Iq
1. Typical value.
Description
■ Operating DC supply voltage range
L5150BN is a low dropout linear 5 V regulator
particularly suitable for automotive applications.
5.6 V to 40 V
■ Low dropout voltage
High output voltage accurancy (2%) is kept over
wide temperature range line and load variation.
■ Low quiescent current
■ Precison output voltage 5 V 2%
Its sophisticated design allows to have extremely
low quiescent current.
■ Very wide stability range with low value output
capacitor
The maximum input voltage is 40 V.
■ Thermal shutdown and short-circuit protection
The regulator output current is internally limited
and the device is protected against short-circuit,
overload and overtemperature conditions. In
addition, only low-value ceramic capacitor on
output is required for stability.
■ Wide temperature range (T = -40 °C to 150 °C)
j
Table 1.
Device summary
Package
Order codes
Tape & reel
Tube
SOT-223
L5150BN
L5150BNTR
February 2012
Doc ID 15541 Rev 8
1/20
www.st.com
1
Contents
L5150BN
Contents
1
2
Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
2.2
2.3
2.4
2.5
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3
4
Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
SOT-223 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1
4.2
4.3
ECOPACK® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SOT-223 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/20
Doc ID 15541 Rev 8
L5150BN
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SOT-223 thermal parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SOT-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Doc ID 15541 Rev 8
3/20
List of figures
L5150BN
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Output voltage vs. T
Output voltage vs. V
j . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Drop voltage vs. output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Current consumption vs. output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Current consumption vs. output current (at light load condition). . . . . . . . . . . . . . . . . . . . . . 8
Current consumption vs. input voltage (Io = 0.1 mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Current consumption vs. input voltage (Io = 75 mA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Current limitation vs. T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
j
Figure 10. Current limitation vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 11. Short-circuit current vs. T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
j
Figure 12. Short-circuit current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 13. PSRR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 14. Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 15. Stability region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 16. Maximum load variation response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 17. SOT-223 PC board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 18. Rthj-amb vs. PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 12
Figure 19. SOT-223 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 20. Thermal fitting model of Vreg in SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 21. SOT-223 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 22. SOT-223 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4/20
Doc ID 15541 Rev 8
L5150BN
Block diagram and pins description
1
Block diagram and pins description
Figure 1.
Block diagram
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9V
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Table 2.
N°
Pins description
Pin name
Function
Supply voltage, block directly to GND on the IC with a
capacitor.
1
2
3
VS
GND
Vo
Ground reference
5 V regulated output. Block to GND with a ceramic capacitor
(C0 > 220 nF for regulator stability)
1. For the pins configuration see outlines at page 1.
Doc ID 15541 Rev 8
5/20
Electrical specifications
L5150BN
2
Electrical specifications
2.1
Absolute maximum ratings
Stressing the device above the rating listed in the Table 3: Absolute maximum ratings may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
program and other relevant quality documents.
Table 3.
Symbol
Absolute maximum ratings
Parameter
Value
Unit
Vsdc
DC supply voltage
-0.3 to 40
internally limited
-0.3 to 6
V
Isdc
Input current
Vo
Io
DC output voltage
V
DC output current
internally limited
-40 to 150
2
Tj
Junction temperature
°C
kV
V
VESD HBM
VESD CDM
ESD voltage level (HBM-MIL STD 883C)
ESD voltage level (CDM AEC-Q100-011)
750
2.2
Thermal data
m
(1)
Table 4.
Symbol
Thermal data
Parameter
Value
Unit
Thermal resistance junction to case:
SOT-223
Rthj-case
20
°K/W
Thermal resistance junction to ambient:
SOT-223
Rthj-amb
79
°K/W
1. The values quoted are for PCB 58 mm x 58 mm x 2 mm, FR4, double copper layer with single heatsink
layer, copper thickness 35 µm, copper area 2 cm2.
6/20
Doc ID 15541 Rev 8
L5150BN
Electrical specifications
2.3
Electrical characteristics
Values specified in this section are for V = 5.6 V to 31 V, T = -40 °C to +150 °C unless
S
j
otherwise stated.
Table 5.
General
Pin
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
VS = 8 V to 18 V,
Io = 8 mA to 150 mA
Vo
Vo_ref Output voltage
Vo_ref Output voltage
Vo_ref Output voltage
4.9
5.0
5.1
V
V
V
VS = 5.6 V to 31 V,
Io = 8 mA to 150 mA
Vo
Vo
4.85 5.0 5.15
4.75 5.0 5.25
VS = 5.6 V to 31 V,
Io = 0.1 mA to 8 mA
Vo
Vo
Ishort
Ilim
Short-circuit current
VS = 13.5 V
VS = 13.5 V
0.65 1.10 1.45
0.28 0.45 0.66
40
A
A
Output current limitation(1)
VS, Vo
Vline
Line regulation voltage
VS = 6 V to 28 V, Io = 30 mA
mV
VS = 8 V to 18 V,
Io = 8 mA to 150 mA
55
40
Vo
Vload
Load regulation voltage
mV
VS = 13.5 V,
Tj = 25 °C,
Io = 8 mA to 150 mA
VS, Vo
VS, Vo
Vdp
Drop voltage(2)
Ripple rejection
Io = 150 mA
fr = 100 Hz(3)
500 mV
dB
SVR
60
Normal consumption mode
output current
Vo
Vo
Vo
Ioth_H
Ioth_L
VS = 8 V to 18 V
8
mA
Very low consumption mode
output current
VS = 8 V to 18 V
1.1
mA
mA
Output current switching
threshold hysteresis
Ioth_Hyst
VS = 13.5 V, Tj = 25 °C
0.8
50
VS = 13.5 V,
80
95
Current consumption
Iqn_1 = IVs – Io
Io = 0.1 mA to 1 mA, Tj = 25 °C
VS, Vo
Iqn_1
µA
VS = 13.5 V, Io = 0.1 mA to 1 mA,
VS = 13.5 V, Io = 150 mA
Current consumption
Iqn_150 = IVs – Io
VS, Vo Iqn_150
3.2
10
4.2
mA
°C
Tw
Thermal protection temperature
150
190
Thermal protection temperature
hysteresis
Tw_hy
°C
1. Measured output current when the output voltage has dropped 100 mV from its nominal value obtained at 13.5 V and Io =
75 mA.
2. VS - Vo measured dropout when the output voltage has dropped 100 mV from its nominal value obtained at 13.5 V and Io =
75 mA.
3. Guaranteed by design.
Doc ID 15541 Rev 8
7/20
Electrical specifications
L5150BN
2.4
Electrical characteristics curves
Figure 2.
Output voltage vs. T
Figure 3. Output voltage vs. V
j
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Figure 5.
Current consumption vs. output
current
Figure 4.
Drop voltage vs. output current
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Figure 6.
Current consumption vs. output
current (at light load condition)
Figure 7.
Current consumption vs. input
voltage (Io = 0.1 mA)
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8/20
Doc ID 15541 Rev 8
L5150BN
Figure 8.
Electrical specifications
Current consumption vs. input
voltage (Io = 75 mA)
Figure 9.
Current limitation vs. T
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Figure 10. Current limitation vs. input voltage Figure 11. Short-circuit current vs. T
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voltage
Figure 13. PSRR
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Doc ID 15541 Rev 8
9/20
Electrical specifications
L5150BN
2.5
Application information
The voltage regulator uses a p-channel mos transistor as a regulating element. With this
structure a very low dropout voltage at current up to 150 mA is obtained. The output voltage
is regulated up to input supply voltage of 40 V. The high-precision of the output voltage (2%)
is obtained with a pre-trimmed reference voltage. The voltage regulator automatically adapts
its own quiescent current to the output current level. In light-load conditions the quiescent
current goes to 55 µA only (low consumption mode). This procedure features a certain
hysteresis on the output current (see Figure 6). Short-circuit protection to GND and a
thermal shutdown are provided.
Figure 14. Application schematic
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The input capacitor C1 ≥ 100 µF is necessary as backup supply for negative pulses which
may occur on the line. The second input capacitor C ≥ 220 nF is needed when the C is too
1
distant from the V pin and it compensates smooth l2ine disturbances. The C ceramic
S
0
capacitor, connected to the output pin, is for bypassing to GND the high-frequency noise
and it guarantees stability even during sudden line and load variations. Suggested value is
ESR ≥ 100
C0 = 220 nF with
mΩ .
Stability region is reported in Figure 15.
10/20
Doc ID 15541 Rev 8
L5150BN
Electrical specifications
Figure 15. Stability region
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Note: The curve which describes the minimum ESR is derived from characterization data on the regulator
with connected ceramic capacitors which feature low ESR values (at 100 kHz). Any capacitor with
further lower ESR than the given plot value must be evaluated in each and every case.
Figure 16. Maximum load variation response
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Doc ID 15541 Rev 8
11/20
Package and PCB thermal data
L5150BN
3
Package and PCB thermal data
3.1
SOT-223 thermal data
Figure 17. SOT-223 PC board
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Note: Layout condition of Rth and Zth measurements (PCB: double layer,
FR4 area= 58 mm x 58 mm, PCB thickness = 2 mm, Cu thickness = 35 µm (front and back side),
footprint dimension 4.1 mm x 6.5 mm ).
Figure 18. R
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12/20
Doc ID 15541 Rev 8
L5150BN
Package and PCB thermal data
Figure 19. SOT-223 thermal impedance junction ambient single pulse
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Z
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THδ
TH
THtp
where δ = t /T
P
Figure 20. Thermal fitting model of Vreg in SOT-223
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Doc ID 15541 Rev 8
13/20
Package and PCB thermal data
Table 6. SOT-223 thermal parameter
L5150BN
Area (cm2)
R1 (°K/W)
R2 (°K/W)
R3 (°K/W)
R4 (°K/W)
R5 (°K/W)
R6 (°K/W)
C1 (W.s/°K)
C2 (W.s/°K)
C3 (W.s/°K)
C4 (W.s/°K)
C5 (W.s/°K)
C6 (W.s/°K)
Footprint
1.53
2
45
2
3.21
5.2
24
0.1
100
0.00004
0.0003
0.03
0.16
1000
0.5
14/20
Doc ID 15541 Rev 8
L5150BN
Package and packing information
4
Package and packing information
4.1
4.2
ECOPACK®
In order to meet environmental requirements, ST offers these devices in different grades of
®
®
ECOPACK packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
®
ECOPACK is an ST trademark.
SOT-223 mechanical data
Figure 21. SOT-223 package dimensions
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Doc ID 15541 Rev 8
15/20
Package and packing information
L5150BN
Max.
Table 7.
DIM.
SOT-223 mechanical data
mm.
Typ.
inch
Typ.
Min.
Max.
Min.
A
B
1.8
0.85
3.15
0.35
6.7
0.071
0.033
0.124
0.014
0.264
0.6
2.9
0.7
3
0.024
0.114
0.009
0.248
0.027
0.118
0.01
B1
c
0.24
6.3
0.26
6.5
2.3
4.6
3.5
7
D
0.256
0.09
e
e1
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0.181
0.138
0.276
3.3
6.7
3.7
7.3
0.13
0.146
0.287
H
0.264
V
10 (max)
0.0008
A1
0.02
0.1
0.004
16/20
Doc ID 15541 Rev 8
L5150BN
Package and packing information
4.3
SOT-223 packing information
Figure 22. SOT-223 tape and reel shipment (suffix “TR”)
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Doc ID 15541 Rev 8
17/20
Revision history
L5150BN
5
Revision history
Table 8.
Date
Document revision history
Revision
Changes
18-Jun-2007
1
Initial release.
Corrected Table 2: Pins description : inverted 1 and 3 pins
descriptions.
Updated Table 5: General :
– Vo_ref parameter: updated test conditions and values.
– Vline and Vshort : updated test condition
14-May-2008
2
– Ishort: changed values from 0.65/0.95/1.25 to 0.65/1.10/1.45
(Min/Typ/Max)
– Ilim: changed values from 0.7/1/1.30 to 0.28/0.45/0.66, added note
– Vdp: added note
– Inserted Ioth_L, Ioth_H, Ioth_Hyst rows
– Iqn_1: changed values from 38/48 to 48/70 (Typ/Max).
Updated Table 5: General :
09-Sep-2008
3
– Vload parameter: changed test conditions.
18/20
Doc ID 15541 Rev 8
L5150BN
Revision history
Table 8.
Date
Document revision history (continued)
Revision
Changes
Updated corporate template (from V2 to V3)
Changed document title
Section : Features on cover page
– Iq on table: changed value from 48 µA to 50 µA
– Added row in bullet list
Table 2: Pins description
Vo: changed ceramic capacitor expression for Function
Table 3: Absolute maximum ratings
– Updated all symbols
Table 4: Thermal data
– Rthj-amb: changed value
– Updated TableFootnote
Table 5: General
– Vload: changed max value for Vs = 8 V to 18 V, added new row
– Iqn_1: changed Test condition (added Tj = 25 °C), changed typ/max
value for Tj = 25 °C , added new row
– Iqn_150: changed typ value
Added Figure 2: Output voltage vs. Tj
Added Figure 3: Output voltage vs. VS
Added Figure 4: Drop voltage vs. output current
Added Figure 5: Current consumption vs. output current
16-Jun-2009
4
Added Figure 6: Current consumption vs. output current (at light load
condition)
Added Figure 7: Current consumption vs. input voltage (Io = 0.1 mA)
Added Figure 8: Current consumption vs. input voltage (Io = 75 mA)
Added Figure 9: Current limitation vs. Tj
Added Figure 10: Current limitation vs. input voltage
Added Figure 11: Short-circuit current vs. Tj
Added Figure 12: Short-circuit current vs. input voltage
Added Figure 13: PSRR
Section 2.5: Application information
– Changed section title from “Voltage regulator“ to “Application
information“
– Updated text
– Added Figure 14: Application schematic
– Added Figure 16: Maximum load variation response
Added Section 3: Package and PCB thermal data
Changed Section 4.1: ECOPACK®
Updated features list.
04-Dec-2009
06-Apr-2010
5
6
Updated Section 2.5: Application information.
Updated Table 5: General:
– Iqn_1 and Iqn_150: updated test parameter.
30-Jan-2012
07-Feb-2012
7
8
Modified Figure 15: Stability region on page 11.
Modified Figure 15: Stability region on page 11.
Doc ID 15541 Rev 8
19/20
L5150BN
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