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High Voltage Linear Regulator
LD6902
12/15/2005
REV: 03
General Description
The LD6902 is a high voltage, micropower linear regulator, which features wide input voltage, low-noise, low-dropout and low-quiescent current. The precision of feedback reference voltage is within ±2% and output current is up to 90mA.
The LD6902 can also be used as a WLED driver. The external soft start function provides a flexible way to limit the startup current.
Features
z ±2% feedback reference z Shutdown current <1µA (TYP) z High input voltage: up to 21V z Thermal shutdown and current limit protection z Soft start operation
Applications
z Microcontroller Power z Hand-Held Instruments
+Patent pending
Typical Application
VIN/15V 0.1µF/X5R
3.3nF
VIN OUT
LD6902 CE
R1/100K
SS GND
FB
R2/20K
VOUT/7.