LM27951
Overview
The LM27951 is a switched capacitor white-LED driver capable of driving up to four LEDs with 30 mA through each LED. Its four tightly regulated current sources ensure excellent LED current and brightness matching.
- 1 Input Voltage Range: 2.8 V to 5.5 V
- Drives up to Four LEDs With up to 30 mA each
- Regulated Current Sources with 0.2% (Typical) Matching
- 3/2×, 1× Gain Transition Based on LED Vƒ
- Peak Efficiency Over 85%
- PWM Brightness Control
- Very Small Solution Size - No Inductor
- Fixed 750-kHz Switching Frequency
- < 1-µA Shutdown Current
