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% www.
DataSheet4U.
com • 100Hz to 100KHz PWM brightness control frequency
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.
The series connection allows the LED current to be identical for uniform brightness.
Its low on-resistance of NFET and feedback
voltage reduce power loss and achieves high efficiency.
Fast 1MHz current-mode PWM operation is available for input and output capacito...