Description
APW7136A/B/C 1MHz, High-Efficiency, Step-Up Converter for 2 to 8 White LEDs .
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.
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
Applications
* White LED Display Backlighting
* Cell Phone and Smart Phone
* PDA, PMP, MP3