Product Summary

The SD42351 is a low dropout current regulator rated for constant LED sink current. The low quiescent current and low dropout voltage is achieved by advanced Bi-CMOS process. The applications of the SD42351 include 1W Power LED driver.

Parametrics

SD42351 absolute maximum ratings: (1)Max Supply Voltage, VDD(max): 6V; (2)Min Supply Voltage, VDD(min): 3V; (3)Operating Temperature, Tamb: 0 ~ + 70℃; (4)Storage Temperature, Tst: -40 ~ +150℃.

Features

SD42351 features: (1)No external component required; (2)Fixed 110mA, 150 mA, 170 mA, 215 mA, 245mA, 270mA, 305mA, 335mA sink current; (3)Output short / open circuit protection; (4)Low dropout voltage; (5)Low quiescent current; (6)Build-in thermal protection; (7)Supply voltage range 3V ~ 6V; (8)2KV HBM ESD protection; (9)Advanced Bi-CMOS process.

Diagrams

SD42351 block diagram