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APW7207/A
1MHz, High-Efficiency, Step-Up Converter for White LEDs
Features
General Description
• Wide Input Voltage from 2.5V to 6V
The APW7207/A is a current-mode and fixed frequency
• 0.2V Reference Voltage • Fixed 1MHz Switching Frequency
boost converter with an integrated N-FET to drive up to 10 white LEDs in series. The series connection allows the LED current to be iden-
• High Efficiency up to 88%
tical for uniform brightness. Its low on-resistance of N-
• 100Hz to 200kHz PWM Brightness Control Fre- FET and feedback voltage reduces power loss and
achieves high efficiency.