TK11935/G35 [TOKO]
VOLTAGE REGULATOR WITH RESET OUTPUT; 带复位输出电压稳压器
| 型号： | TK11935/G35 |
| 厂家： | 
TOKO, INC |
| 描述： | VOLTAGE REGULATOR WITH RESET OUTPUT |
| 文件： | 总23页 (文件大小：137K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TK119xx
VOLTAGE REGULATOR WITH RESET OUTPUT
FEATURES
FEATURES
■ Very Low Dropout Voltage
■ Battery Powered Systems
■ Cellular Telephones
■ Pagers
■ Personal Communications Equipment
■ Portable Instrumentation
■ Portable Consumer Equipment
■ Radio Control Systems
■ Toys
■ Reset Output for Microprocessor
■ Very Low Quiescent Current (No Load)
■ Internal Thermal/Overload Shutdown
■ Low Noise Voltage
■ Input and Output Voltage Sense
■ ± 2.5 % Output Voltage Accuracy
■ CMOS or TTL On/Off Control
■ High Speed On/Off Transient (50 µs typ.)
■ Low Voltage Systems
DESCRIPTION
The TK119xx series are low power, linear regulators with
built-in electronic switches. Built-in voltage comparators
provide a reset logic ”low” level whenever the input or
output voltage falls outside internally preset limits. The
internal electronic switch can be controlled by CMOS or
TLL levels. The device is in the “off” state when the control
pin is biased “high”.
TK119xx
NOISE
BYPASS
V
IN
01S
CONTROL
GND
An internal PNP pass-transistor is used in order to achieve
low dropout voltage (typically 200 mV at 50 mA load
current). The device has very low quiescent current
(130 µA) in the “on” mode with no load and 2 mA with 30
mA load. The quiescent current is typically 4 mA at 60 mA
load. The current consumption in the “off” mode is 65 µA.
An internal thermal shutdown circuit limits the junction
temperature to below 150 oC. The load current is internally
monitored and the device will shut down (no load current)
in the presence of a short circuit at the output. The output
noise is very low at 100 dB down from VOUT when an
external noise bypass capacitor is used. The TK119xx is
available in a miniature SOT-23L surface mount package.
RESET
V
OUT
OUTPUT
BLOCK DIAGRAM
V
V
OUT
IN
RESET
OUTPUT
SHUT
DOWN
THERMAL
PROTECTION
CONTROL
ERROR
DETECTION
ORDERING INFORMATION
TK119
M
BANDGAP
REFERENCE
Tape/Reel Code
Voltage Code
TAPE/REEL CODE
TL: Tape Left
VOLTAGE CODE
22 = 2.25 V
27 = 2.75 V
30 = 3.00 V
32 = 3.25 V
35 = 2.5 V
NOISE
BYPASS
GND
40 = 4.0 V
48 = 4.8 V
50 = 5.0 V
January 1999 TOKO, Inc.
Page 1
TK119xx
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 17 V
Operating Voltage Range............................... 1.8 to 16 V
Power Dissipation (Note 1) ................................ 400 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-30 to +80 °C
Junction Temperature .......................................... 150 °C
Lead Soldering Temperature (10 s) ..................... 235 °C
TK11922 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 3.25 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 1.25 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
2.33
2.37
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
2.17
2.13
2.25
2.25
160
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 3.25 to 12.25 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN = 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
TR Output Rise Time (OFF to ON)
2.2
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
50
µs
Note 1: Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for operation above 25°C.
Page 2
January 1999 TOKO, Inc.
TK119xx
TK11927 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 3.75 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 1.75 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
2.83
2.87
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
2.67
2.63
2.75
2.75
160
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 3.75 to 12.75 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN= 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
TR Output Rise Time (OFF to ON)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
50
µs
January 1999 TOKO, Inc.
Page 3
TK119xx
TK11930 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 4.0 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
95
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 2.0 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
160
3.08
3.12
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
2.92
2.88
3.0
V
VOUT
Output Voltage
3.0
V
VDROP
IOUT
Dropout Voltage
Output Current
160
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 4.0 to 13.0 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN = 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
TR
Output Rise Time (OFF to ON)
50
µs
Page 4
January 1999 TOKO, Inc.
TK119xx
TK11932 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 4.25 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 2.25 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
3.33
3.37
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
3.17
3.13
3.25
3.25
160
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 4.25 to 13.25 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN= 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
TR Output Rise Time (OFF to ON)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
50
µs
January 1999 TOKO, Inc.
Page 5
TK119xx
TK11935 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 4.5 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 2.5 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
3.59
3.63
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
3.41
3.37
3.50
3.50
160
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 4.5 to 13.5 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN = 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
TR
Output Rise Time (OFF to ON)
50
µs
Page 6
January 1999 TOKO, Inc.
TK119xx
TK11940 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 5.0 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 3.0 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
4.10
4.14
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
3.90
3.86
4.00
4.00
160
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 5.0 to 14.0 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN = 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
TR Output Rise Time (OFF to ON)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
50
µs
January 1999 TOKO, Inc.
Page 7
TK119xx
TK11948 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 5.8 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 3.8 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
4.92
4.97
350
100
50
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
4.68
4.63
4.80
4.80
160
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 5.8 to 14.8 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN = 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
TR
Output Rise Time (OFF to ON)
50
µs
Page 8
January 1999 TOKO, Inc.
TK119xx
TK11950 ELECTRICAL CHARACTERISTICS
Test conditions: VIN = 6.0 V, CL = 10 µF, CN = 0.01 µF, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0 mA
MIN
TYP
140
380
2.5
MAX UNITS
300
900
10
µA
µA
IQ
VIN = 4.0 V, IOUT = 0 mA
IOUT = 60 mA
IGND
Ground Current
Standby Current
mA
µA
ISTBY
Output OFF
95
160
IOUT = 1 mA, TA = 25 ° C
IOUT = 1 mA, -30 ≤ TA ≤ 80 ° C
IOUT = 30 mA
4.875 5.000 5.125
4.825 5.000 5.175
V
VOUT
Output Voltage
V
VDROP
IOUT
Dropout Voltage
Output Current
160
350
100
50
mV
mA
mV
mV
mV/° C
dB
Line Reg Line Regulation
Load Reg Load Regulation
VIN = 6.0 to 15.0 V
IOUT = 1 to 80 mA
5
20
100
∆VOUT /∆T
Temperature Coefficient
Ripple Rejection
±0.2
68
RR
f = 400 Hz, CL = 10 µF
10 Hz ≤ f ≤ 100 kHz, CL = 10 µF,
CN = 0.01 µF
VNO
Output Noise Voltage
50
VOUT x 0.95
VDET
µVrms
VDET
Low Voltage Detector Threshold
V
%
V
Voltage Detector Threshold
Tolerance
VDET(ERR)
VRESET
-4
+4
Saturation Voltage
IFLAG = 100 µA
0.2
0.4
CONTROL TERMINAL SPECIFICATIONS
VCONT = 5 V
VCONT = 16 V
Output ON
Output OFF
25
45
100
150
0.6
µA
µA
V
ICONT
Control Terminal Current
Control Voltage (ON)
VCONT(ON)
VCONT(OFF) Control Voltage (OFF)
TR Output Rise Time (OFF to ON)
2.4
V
IOUT = 30 mA, CL = 0.1 µF,
CN = 0.1 µF
50
µs
January 1999 TOKO, Inc.
Page 9
TK119xx
TEST CIRCUIT
V
OUT
V
IN
+
+
+
V
OUT
C
L
10 µF
I
OUT
1 µF
NOISE BYPASS
RESET OUTPUT
220 k
CONT
C
N
I
CONT
0.01 µF
+
+
V
CONT
TIMING DIAGRAM
PRINCIPLE OF OPERATION
OUTPUT VOLTAGE 5 V
GLITCH
RESET OUTPUT
NOT
VALID
NOT
VALID
~5 V
~5 V
GLITCH
INPUT VOLTAGE
t
Page 10
January 1999 TOKO, Inc.
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C, unless otherwise specified.
GROUND CURRENT VS.
OUTPUT CURRENT
DROPOUT VOLTAGE VS.
OUTPUT CURRENT
INPUT CURRENT AND CONTROL
CURRENT VS. CONTROL VOLTAGE
100
50
0
10
500
400
300
200
200
100
0
I
IN
5
SHUTDOWN POINT
100
0
I
CONT
0
0
50
100
0
50
100
0
2.5
5.0
I
(mA)
I
(mA)
V
(V)
CONT
OUT
OUT
NOISE LEVEL VS.
FREQUENCY (TK11950)
SATURATION VOLTAGE VS.
RESET OUTPUT CURRENT
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
-50
250
200
150
100
50
3 V 5 V
5
4
V
= 1 V
2 V
IN
I
C
C
= 25 mA
= 0.1 µF
= 0.1 µF
OUT
L
N
3
2
-100
6 V
C
C
= 3.3 µF
= 0.1 µF
L
N
1
0
0
0
0
500 k
f (Hz)
1 M
0.5
(mA)
1.0
0
100
200
I
I
(mA)
FLAG
OUT
TURN-ON TIME VS. OUTPUT
CAPACITOR
LINE VOLTAGE STEP RESPONSE
LOAD CURRENT STEP RESPONSE
I
= 30 mA
2.4 V
OUT
7 V
6 V
50 mA
1 µF
0 V
0 mA
C
= .1 µF
L
10 µF
15 µF
4.7 µF
TIME (50 µs/DIV)
TIME (50 µs/DIV)
TIME (50 µs/DIV)
January 1999 TOKO, Inc.
Page 11
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
NOISE VS. BYPASS
CAPACITOR VALUE
RIPPLE REJECTION VS.
FREQUENCY
300
200
150
100
0
V
OUT
V
IN
C
= 0.1 µF
L
119xx
+
SW
C
L
-50
10
F
C
0.01
N
F
0.1
F
C
= 10 µF
10 k
L
50
0
RIPPLE REJECTION CIRCUIT
-100
1 pF
100 pF
0.01 µF
100
1 k
100 k
10 pF
1000 pF
0.1 µF
C
f (Hz)
N
GROUND CURRENT (ON MODE)
VS. TEMPERATURE
STANDBY CURRENT (OFF MODE)
VS. TEMPERATURE
CONTROL CURRENT
VS. TEMPERATURE
10
100
50
40
30
20
V
= 5 V
CONT
5
0
50
0
I
= 60 mA
OUT
I
= 30 mA
OUT
V
= 2.5 V
CONT
10
0
-50
0
50
100
-50
0
50
100
-50
0
50
100
T
A
(°C)
T
A
(°C)
T (°C)
A
CONTROL VOLTAGE (OFF POINT)
VS. TEMPERATURE
VOLTAGE DETECTOR
VS. TEMPERATURE
DROPOUT VOLTAGE
VS. TEMPERATURE
2.0
4.85
500
400
300
200
I
= 60 mA
OUT
1.0
4.75
4.65
I
= 30 mA
50
OUT
100
0
0
-50
0
50
100
-50
0
50
100
-50
0
100
T
A
(°C)
T
A
(°C)
T
A
(°C)
Page 12
January 1999 TOKO, Inc.
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11922
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
2.35
2.25
2.15
2.05
5.0
2.5
0
2.45
V
OUT
2.25
1.95
1.85
2.05
0
0
10
20
3.75
20
0
2.5
(V)
5.0
50
100
V
(V)
V
I
(mA)
IN
IN
OUT
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
2.25
500
250
2.75
2.25
1.75
I
= 0 mA
OUT
2.20
2.15
30 mA
60 mA
0
0
10
20
1.75
2.25
V (V)
-50
0
50
100
V
(V)
T (°C)
A
IN
IN
TK11927
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
2.85
5.0
2.95
2.75
2.65
2.55
V
OUT
2.75
2.5
2.45
2.35
2.55
0
0
50
100
0
2.5
(V)
5.0
0
10
I
(mA)
V
V
(V)
OUT
IN
IN
January 1999 TOKO, Inc.
Page 13
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11927 (CONT.)
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
500
250
0
2.80
3.25
2.75
2.25
I
OUT
= 0 mA
2.75
2.70
30 mA
60 mA
0
10
IN
20
100
20
2.25
2.75
V (V)
3.25
-50
0
50
100
V
(V)
T
(°C)
IN
A
TK11930
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
3.35
3.25
3.15
3.05
3.45
5.0
2.5
0
V
OUT
3.25
2.95
2.85
3.05
0
0
10
20
50
0
2.5
(V)
5.0
V
(V)
I
(mA)
V
IN
OUT
IN
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
3.30
500
250
3.75
3.25
2.75
I
OUT
= 0 mA
3.25
3.20
30 mA
60 mA
0
0
10
2.75
3.25
V (V)
3 .75
-50
0
50
100
V
(V)
T (°C)
A
IN
IN
Page 14
January 1999 TOKO, Inc.
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11932
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
3.35
3.25
3.15
3.05
3.45
5.0
2.5
0
V
OUT
3.25
2.95
2.85
3.05
0
50
100
0
10
20
3 .75
20
0
2.5
(V)
5.0
I
(mA)
V
(V)
V
OUT
IN
IN
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
3.30
500
250
3.75
3.25
2.75
I
= 0 mA
OUT
3.25
3.20
30 mA
60 mA
0
0
10
20
2.75
3.25
V (V)
-50
0
50
100
V
(V)
T (°C)
A
IN
IN
TK11935
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
3.6
5.0
3.7
3.5
3.4
3.3
V
OUT
3.5
2.5
3.2
3.1
3.3
0
0
0
10
0
2.5
(V)
5.0
50
100
V
(V)
V
I
(mA)
IN
IN
OUT
January 1999 TOKO, Inc.
Page 15
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11935 (CONT.)
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
3.55
500
250
0
4.0
3.5
3.0
I
= 0 mA
OUT
3.50
3.45
30 mA
60 mA
0
10
IN
20
100
20
3.0
3.5
(V)
4.0
-50
0
50
100
V
(V)
V
T (°C)
A
IN
TK11940
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
4.1
4.0
3.9
3.8
4.2
5.0
2.5
0
V
OUT
4.0
3.7
3.6
3.8
0
50
0
10
20
0
2.5
(V)
5.0
I
(mA)
V
(V)
V
OUT
IN
IN
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
4.05
500
250
4.5
4.0
3.5
I
= 0 mA
OUT
4.00
3.95
30 mA
60 mA
0
0
10
3.5
4.0
(V)
4.5
-50
0
50
100
V
(V)
V
T (°C)
A
IN
IN
Page 16
January 1999 TOKO, Inc.
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11948
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
4.9
4.8
4.7
4.6
5.0
2.5
0
5.0
V
4.8
OUT
4.5
4.4
4.6
0
0
2.5
(V)
5.0
0
10
20
5.3
20
50
100
V
V
(V)
IN
I
(mA)
IN
OUT
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
4.85
500
250
5.3
4.8
I
= 0 mA
OUT
4.80
4.75
30 mA
60 mA
0
0
4.3
10
20
4.3
4.8
(V)
-50
0
50
100
V
(V)
V
T (°C)
A
IN
IN
TK11950
OUTPUT VOLTAGE VS.
OUTPUT CURRENT
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
LOW VOLTAGE DETECTOR VS.
INPUT VOLTAGE
5.1
5.2
5.0
5.0
4.9
4.8
5.0
V
OUT
2.5
4.7
4.6
4.8
0
0
50
100
0
10
0
2.5
(V)
5.0
I
(mA)
V
(V)
V
OUT
IN
IN
January 1999 TOKO, Inc.
Page 17
TK119xx
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
TK11950 (CONT.)
QUIESCENT CURRENT VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
INPUT VOLTAGE
OUTPUT VOLTAGE VS.
AMBIENT TEMPERATURE
5.05
500
250
0
5.5
5.0
4.5
I
= 0 mA
OUT
5.00
4.95
30 mA
60 mA
0
10
IN
20
4.5
5.0
(V)
5.5
-50
0
50
100
V
(V)
V
T (°C)
A
IN
Page 18
January 1999 TOKO, Inc.
TK119xx
DEFINITION AND EXPLANATION OF TECHNICAL TERMS
QUIESCENT CURRENT (IQ)
PACKAGE POWER DISSIPATION (PD)
The quiescent current is the current which flows through
thegroundterminalundernoloadconditions(IOUT =0mA).
This is the power dissipation level at which the thermal
sensor is activated. The IC contains an internal thermal
sensor which monitors the junction temperature. When
the junction temperature exceeds the monitor threshold of
150 °C, the IC is shut down. The junction temperature
rises as the difference between the input power (VIN x IIN)
and the output power (VOUT x IOUT) increases. The rate of
temperature rise is greatly affected by the mounting pad
configuration on the PCB, the board material, and the
ambient temperature. When the IC mounting has good
thermal conductivity, the junction temperature will be low
even if the power dissipation is great. When mounted on
the recommended mounting pad, the power dissipation of
the SOT-23L is increased to 400 mW. For operation at
ambient temperatures over 25 °C, the power dissipation of
the SOT-23L device should be derated at 3.2 mW/°C. To
determine the power dissipation for shutdown when
mounted, attach the device on the actual PCB and
deliberately increase the output current (or raise the input
voltage) until the thermal protection circuit is activated.
Calculatethepowerdissipationofthedevicebysubtracting
the output power from the input power. These
measurements should allow for the ambient temperature
ofthePCB. ThevalueobtainedfromPD /(150 °C-TA)isthe
derating factor. The PCB mounting pad should provide
maximum thermal conductivity in order to maintain low
device temperatures. As a general rule, the lower the
temperature, the better the reliability of the device. The
thermalresistancewhenmountedisexpressedasfollows:
GROUND CURRENT (IGND
)
Ground current is the current which flows through the
ground pin(s). It is defined as IIN - IOUT, excluding control
current.
LINE REGULATION (LINE REG)
Line regulation is the relationship between change in
output voltage due to a change in input voltage.
LOAD REGULATION (LOAD REG)
Load regulation is the relationship between change in
output voltage due to a change in load current.
DROPOUT VOLTAGE (VDROP
)
Thisisameasureof howwelltheregulatorperformsasthe
input voltage decreases. The smaller the number, the
further the input voltage can decrease before regulation
problems occur. Nominal output voltage is first measured
when VIN = VOUT(TYP) + 1 at a chosen load current. When
the output voltage has dropped 100 mV from the nominal,
VIN - VOUT is the dropout voltage. This voltage is affected
by load current and junction temperature.
OUTPUT NOISE VOLTAGE
Tj = 0jA x PD + TA
This is the effective AC voltage that occurs on the output
voltage under the condition where the input noise is low
and with a given load, filter capacitor, and frequency
range.
For Toko ICs, the internal limit for junction temperature is
150 °C. If the ambient temperature (TA) is 25 °C, then:
THERMAL PROTECTION
150 °C = 0jA x PD + 25 °C
0jA = 125 °C/ PD
This is an internal feature which turns the regulator off
when the junction temperature rises above 150 °C. After
the regulator turns off, the temperature drops and the
regulator output turns back on. Under certain conditions,
theoutputwaveformmayappeartobeanoscillationasthe
output turns off and on and back again in succession.
PD is the value when the thermal sensor is activated. A
simple way to determine PD is to calculate VIN x IIN when
the output side is shorted. Input current gradually falls as
temperature rises. You should use the value when thermal
equilibrium is reached.
January 1999 TOKO, Inc.
Page 19
TK119xx
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
The range of usable currents can also be found from the
graph below.
(mW)
3
P
D
6
D
PD
4
5
25
50
75
(°C)
150
T
A
Procedure:
1) Find PD
2) PD1 is taken to be PD x (~ 0.8 - 0.9)
3) Plot PD1 against 25 °C
4) Connect PD1 to the point corresponding to the 150 °C
with a straight line.
5) In design, take a vertical line from the maximum
operating temperature (e.g., 75 °C) to the derating
curve.
6) Read off the value of PD against the point at which the
vertical line intersects the derating curve. This is taken
as the maximum power dissipation, DPD
.
The maximum operating current is:
IOUT = (DPD / (VIN(MAX) - VOUT
)
500
MOUNTED
FREE AIR
400
300
200
100
0
0
50
100
150
T
(°C)
A
SOT-23L POWER DISSIPATION
Page 20
January 1999 TOKO, Inc.
TK119xx
APPLICATION INFORMATION
INPUT/OUTPUT
DECOUPLING
CAPACITOR
CONSIDERATIONS
GND
V
+
V
IN
OUT
+
Voltage regulators require input and output decoupling
capacitors. The required values of these capacitors vary
with application. Capacitors made by different
manufacturers can have different characteristics,
particularly with regard to high frequencies and Equivalent
Series Resistance (ESR) over temperature. The type of
capacitorisalsoimportant. Forexample,a4.7µFaluminum
electrolytic may be required for a certain application. If a
tantalum capacitor is used, a lower value of 2.2 µF would
be adequate. It is important to consider the temperature
characteristics of the decoupling capacitors. While Toko
regulators are designed to operate as low as -30 °C, many
capacitors will not operate properly at this temperature.
The capacitance of aluminum electrolytic capacitors may
decrease to 0 at low temperatures. This may cause
oscillation on the output of the regulator since some
capacitance is required to guarantee stability. Thus, it is
important to consider the characteristics of the capacitor
over temperature when selecting decoupling capacitors.
RESET
CONTROL
SOT-23L BOARD LAYOUT
NOISE BYPASS CAPACITOR SECTION
The noise bypass capacitor (CN) should be connected as
close as possible to pin 1 and ground. The recommended
value for CN is 0.01 µF. The noise bypass terminal has a
high impedance and care should be taken if the noise
bypass capacitor is not used. This terminal is susceptible
to external noise, and oscillation can occur when CN is not
used and the solder pad for this pin is too large.
The ESR is another important parameter. The ESR will
increase with temperature but low ESR capacitors are
oftenlargerandmorecostly.Ingeneral,tantalumcapacitors
offer lower ESR than aluminum electrolytic, but new low
ESR aluminum electrolytic capacitors are now available
from several manufacturers. Usually a bench test is
sufficient to determine the minimum capacitance required
for a particular application. After taking thermal
characteristics and tolerance into account, the minimum
capacitance value should be approximately two times the
value. The recommended minimum capacitance for the
TK119xx is 2.2 µF for a tantalum capacitor or 3.3 µF for an
aluminum electrolytic. Please note that linear regulators
with a low dropout voltage have high internal loop gains
which require care in guarding against oscillation caused
by insufficient decoupling capacitance. The use of high
quality decoupling capacitors suited for your application
will guarantee proper operation of the circuit.
RESET OUTPUT CONSIDERATIONS
It is important to note the accuracy of the regulator and
voltage detector functions when they are combined within
one IC. The figure below illustrates the voltage regulator
andvoltagedetectorimplementedwithindividualreference
voltages.
V
MAX
V
MIN
BOARD LAYOUT
R
MAX
Copper pattern should be as large as possible. Power
dissipation is 400 mW for the SOT-23L package. A low
ESR capacitor is recommended. For low temperature
operation, select a capacitor with a low ESR at the lowest
operating temperature to prevent oscillation, degradation
of ripple rejection and increase in noise. The minimum
recommended capacitance is 2.2 µF.
R
MIN
NON-TOKO APPROACH
January 1999 TOKO, Inc.
Page 21
TK119xx
APPLICATION INFORMATION (CONT.)
Note: VMIN - RMAX ≤ 0 is possible, meaning the two ranges
HANDLING MOLDED RESIN PACKAGES
may overlap.
All plastic molded packages absorb some moisture from
the air. If moisture absorption occurs prior to soldering the
device into the printed circuit board, increased separation
of the lead from the plastic molding may occur, degrading
the moisture barrier characteristics of the device. This
property of plastic molding compounds should not be
overlooked,particularlyinthecaseofverysmallpackages,
where the plastic is very thin.
The figure below illustrates the TK119xx. The TK119xx
utilizes the same reference voltage for both the voltage
regulator and the voltage detector functions. As a result,
the detector voltage is always constant (VOUT x 0.95 %)
from the output voltage. With this approach, the two
ranges do not overlap.
V
MAX
Inordertopreservetheoriginalmoisturebarrierproperties
ofthepackage,devicesarestoredandshippedinmoisture
proof bags filled with dry air. The bags should not be
opened or damaged prior to the actual use of the devices.
If this is unavoidable, the devices should be stored in a low
relativehumidityenvironment(40to65%)orinanenclosed
environment with desiccant.
V
MIN
R
MAX
R
MIN
TOKO APPROACH
TYPICAL APPLICATIONS
CONTROL FUNCTION NOT UTILIZED
CONTROL FUNCTION UTILIZED
V
V
IN
IN
V
V
OUT
OUT
+
+
+
+
4.7 µF
4.7 µF
1 µF
1 µF
R
RESET
R
RESET
LOW = ON
RESET OUTPUT
RESET OUTPUT
CMOS OR
TTL GATE
C
C
N
0.01 µF
N
0.01 µF
LOW VOLTAGE SHUTDOWN
V
IN
V
OUT
+
+
Note: Parallel connection
of control pins is allowed
if all devices use identical
input voltages.
4.7 µF
1 µF
C
39 K ≤ RRESET ≤ 220 K
Choose for correct High
Logic level.
N
0.01 µF
RESET
SW
Page 22
January 1999 TOKO, Inc.
TK119xx
PACKAGE OUTLINE
Marking Information
SOT-23L (SOT-23L-6)
Marking
G22
G27
G30
G3
G35
G40
G4
TK11922
TK11927
TK11930
TK11932
TK11935
TK11940
TK11948
TK11950
+0.15
0.4- 0.05
0.1
M
0.6
6
5
4
Marking
G5
Product Code
Voltage Code
+0.15
0.32- 0.05
1
2
3
e
e
0.95
0.1
0.95
M
5 PL
e
e
0.95
0.95
Recommended Mount Pad
+0.3
- 0.1
3.5
(3.4)
2.2
0.4
+ 0.3
3.3
Dimensions are shown in millimeters
Tolerance: x.x = ± 0.2 mm (unless otherwise specified)
Toko America, Inc. Headquarters
1250 Feehanville Drive, Mount Prospect, Illinois 60056
Tel: (847) 297-0070 Fax: (847) 699-7864
TOKO AMERICA REGIONAL OFFICES
Midwest Regional Office
Toko America, Inc.
1250 Feehanville Drive
Mount Prospect, IL 60056
Tel: (847) 297-0070
Western Regional Office
Toko America, Inc.
2480 North First Street , Suite 260
San Jose, CA 95131
Tel: (408) 432-8281
Fax: (408) 943-9790
Eastern Regional Office
Toko America, Inc.
107 Mill Plain Road
Danbury, CT 06811
Tel: (203) 748-6871
Fax: (203) 797-1223
Semiconductor Technical Support
Toko Design Center
4755 Forge Road
Colorado Springs, CO 80907
Tel: (719) 528-2200
Fax: (719) 528-2375
Fax: (847) 699-7864
Visit our Internet site at http://www.tokoam.com
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its
products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of
third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.
January 1999 TOKO, Inc.
Page 23
© 1999 Toko, Inc.
IC-119-TK119xx
0798O0.0K
Printed in the USA
All Rights Reserved
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