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PDF TK11850LTL Data sheet ( Hoja de datos )
| Número de pieza | TK11850LTL | |
| Descripción | WHITE LED DRIVER | |
| Fabricantes | TOKO | |
| Logotipo |  |
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TK11900
ADJUSTABLE LOW DROPOUT REGULATOR
FEATURES
s Low Supply Current
s Low Power Shutdown Mode
s Low Noise Output
s Low Dropout Voltage
s Extremely High Stability
s High Speed On/Off Transient (50 µs typ.)
s Miniature Package (SOT-23L)
APPLICATIONS
s Portable Instrumentation
s Cordless Telephones
s Pagers
s Toys
s Cellular Telephones
s Test Equipment
DESCRIPTION
The TK11900 is a low dropout voltage regulator with external
voltage adjustment. The output can be set between 1.5 V
and 15 V by an external pair of resistors in a divider
configuration. The device has a bypass pin for an external
capacitor to reduce output noise to a typical 50 µV(rms). In
addition, a control pin is provided that is active low (a low
level turns on the output). In the “off” mode (control pin high)
the device draws only 65 µA of quiescent current.
The TK11900 is available in a miniature SOT-23L surface
mount package.
TK11900
NOISE
BYPASS
01S
CONTROL
FEEDBACK
VIN
GND
VOUT
ORDERING INFORMATION
TK11900M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
VIN
CONTROL
BLOCK DIAGRAM
SHUT
DOWN
BANDGAP
REFERENCE
THERMAL
PROTECTION
VOUT
FEEDBACK
November 2000 TOKO, Inc.
NOISE
BYPASS
GND
Page 1
1 page  
TK11900
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
VOUT = 5 V, TA = 25 °C, unless otherwise specified.
TURN-ON TIME VS. OUTPUT
CAPACITOR
2.4 V
0V
CL = .1 µF
1 µF
10 µF
15 µF
4.7 µF
TIME (50 µs/DIV)
50
40
30
20
10
0
-50
CONTROL CURRENT
VS. TEMPERATURE
VCONT = 5 V
VCONT = 2.5 V
0 50
TA (°C)
100
GROUND CURRENT (ON MODE)
VS. TEMPERATURE
10
5 IOUT = 60 mA
IOUT = 30 mA
0
-50 0 50 100
TA (°C)
CONTROL VOLTAGE (OFF POINT)
VS. TEMPERATURE
2.0
1.0
0
-50 0 50 100
TA (°C)
STANDBY CURRENT (OFF MODE)
VS. TEMPERATURE
100
50
0
-50
500
400
300
200
100
0
-50
0 50
TA (°C)
100
DROPOUT VOLTAGE
VS. TEMPERATURE
IOUT = 60 mA
IOUT = 30 mA
0 50
TA (°C)
100
November 2000 TOKO, Inc.
Page 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TK11850LTL.PDF ] | |
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