MAX8630Y Overview
The MAX8630Y/MAX8630Z charge pumps drive up to 5 white LEDs with regulated constant current up to 125mA total. By utilizing adaptive 1x/1.5x charge-pump modes and very low-dropout current regulators, they achieve high efficiency over the full 1-cell Li+ battery input voltage range. The 1MHz fixed-frequency switching allows for tiny external ponents, and the regulation scheme is optimized to ensure low EMI and low...
MAX8630Y Key Features
- 93% Max/85% Avg. Efficiency (PLED/PBATT) Over Li+ Battery Discharge
- 1% LED Current Accuracy
- 125mA Total Drive Capability
- Adaptive 1x/1.5x Mode Switchover
- Single-Wire, Serial-Pulse Dimming (MAX8630Z)
- Direct-PWM Dimming (MAX8630Y)
- 15, 18, 20, and 25mA Full-Scale Versions
- Low 0.1µA Shutdown Current
- Soft-Start Eliminates Inrush Current
- Output Overvoltage Protection