HT7991 converter equivalent, 1mhz asynchronous step-up pwm converter.
* Input Voltage from 2.6V to 5.5V
* Adjustable Output Voltage Up to 12V
* Internal 0.2Ω Low Power Switch
* Fixed PWM Switching Frequency: 1MHz
* .
* All Single Cell Li or Dual Cell Battery Application
* Portable Equipment/Handheld Devices
General Descriptio.
The HT7991 is a current mode asynchronous stepup DC-DC converter. The fully integrated power MOSFET transistor, with its 0.2Ω drain source resistance, ensures a high level of device power efficiency. A fixed 1MHz switching frequency has been chosen t.
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