Anpec Electronics APW7077
The APW7077/A series are multi- function PWM step-up DC-DC converter with an adaptive voltage mode controller and higher efficiency application from one to four cells battery packs. The APW7077/A series are set PWM operating mode, voltage-mode to follow portable application. The APW 7077/A series consist of PW M controller, reference voltage, phase compensation, oscillator, soft-start, driver block.| Part No. | APW7077 |
|---|---|
| Datasheet | APW7077 Download |
| Manufacturer |  Anpec Electronics |
| Description | PWM Step-Up DC-DC Converter |
| Buy | Stock & Price |
FEATURES
● Low Start-Up Voltage 0.9V● Fixed 300kHz Operating Frequency
● Built-In Internal Soft-Start Circuit
● Low Operating Current
● 3.3V and 5V (±2.5%) Fixed (APW7077) or Adjustable Output Voltage (APW7077A)
● High Efficiency Up to 88% at 400mA Output Current
● High Output Current Up to 1A
● Compact Package: SOT-23-5
● Lead Free and Green Devices Available (RoHS Compliant)
APPLICATIONS
● Cellular and Portable Phones● Portable Audio
● Camcorders and Digital Still Camera
● Hand-held Instrument
● PDAs PWM Step-Up DC-DC Converter
GENERAL DESCRIPTION
And built-in driver pin, EXT pin, for connecting to an external transistor or MOSFET during light load, the device will automatically skip switching cycles to maintain high efficiency. It will be provided to operate suitable voltage without external compensation circuit. The APW7077/A series have fixed voltage and adjustable voltage version from a wide input voltage ranges 0.7V to 5.5V for step-up DC-DC converter. The start-up is guaranteed at 1V and the device is operating down to 0.7V, and providing up to 300mA loading current.
