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APW7136A/B/C
1MHz, High-Efficiency, Step-Up Converter for 2 to 8 White LEDs
Features
• Wide Input Voltage from 2.7V to 6V • 0.25V Reference Voltage • Fixed 1MHz Switching Frequency • High Efficiency up to 87% • 100Hz to 100KHz PWM brightness control fre-
quency • Open-LED Protection • Under Voltage Lockout Protection • Over Temperature Protection • <1µA Quiescent Current during Shutdown • SOT-23-6 Package • Lead Free Available (RoHS Compliant)
Applications
• White LED Display Backlighting • Cell Phone and Smart Phone • PDA, PMP, MP3 • Digital Camera
Pin Configuration
SOT-23-6 Top View
LX 1 GND 2
FB 3
6 VIN 5 OVP 4 EN
General Description
The APW7136A/B/C is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 8 white LEDs in series.