HT77S11 Overview
The HT77S11 and HT77S10 are high efficiency PFM synchronous step-up DC-DC converters. The two devices although functionally similar are different in their output drive current capabilities. Synchronous rectification operation is used to increase device efficiency and to reduce the external ponent resulting in reduced product costs.
HT77S11 Key Features
- Low start-up voltage: 0.7V (Typ.)
- High efficiency: HT77S10: 91% (Typ.)
- Low ripple and low noise
- Ultra low supply current: 20mA (Typ.)
- Low shutdown current: 1mA (Max.)
- Built-in voltage detector
- 8-pin MSOP/SOP packages
- High output voltage accuracy: ±4%
- Output voltage: 3.3V, 5.0V or Adjustable
HT77S11 Applications
- The FB pin is connected to an external resistive divider, OUT or GND pins to set the output voltage