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APW8822E

ANPEC
Part Number APW8822E
Manufacturer ANPEC
Description System Power PWM Controller
Published Aug 17, 2020
Detailed Description APW8822E System Power PWM Controller for Notebook Computers with Charge Pump Features Simplified Application Circuit ...
Datasheet PDF File APW8822E PDF File

APW8822E
APW8822E

Overview
APW8822E System Power PWM Controller for Notebook Computers with Charge Pump Features Simplified Application Circuit • Wide Input voltage Range from 6V to 25V • Provide 5 Independent Outputs with ±1.
0% Accu- racy Over-Temperature - PWM1 Controller with Adjustable (2V to 5.
5V) Output - PWM2 Controller with Adjustable (2V to 5.
5V) Output - 100mA Low Dropout Regulator (LDO5) with Fixed 5V Output - 100mA Low Dropout Regulator (LDO3) with Fixed 3.
3V Output - 270kHz Clock Signal for 15V Charge Pump (Used General Description VOUT1 as Its Power Supply) The APW8822E integrates dual step-down, constant-on- • Excellent Line/Load Regulations about ±1.
5% Over- time, synchronous PWM controllers (that drives dual N- Temperature Range channel MOSFETs for each channel) and two low drop- • Built in POR Control Scheme Implemented out regulators as well as various protections into a chip.
• Constant On-Time Control Scheme with Frequency The PWM controllers step down high voltage of a battery Compensation for PWM Mode to generate low-voltage for NB applications.
The output • Selectable Switching Frequency in PWM Mode of PWM1 and PWM2 can be adjusted from 2V to 5.
5V by • Built-in Digital Soft-Start for PWM Outputs and Soft- setting a resistive voltage-divider from VOUTx to GND.
Stop for PWM Outputs and LDO Outputs The linear regulators provide 5V and 3.
3V output for • Integrated Bootstrap Forward P-CH MOSFET standby power supply.
The linear regulators provide up • High Efficiency over Light to Full Load Range to 100mA output current.
When the PWMx output voltage (PWMs) is higher than LDOx bypass threshold, the related LDOx • Built-in Power Good Indicators (PWMs) regulator is shut off and its output is connected to VOUTx • Independent Enable Inputs (PWMs, LDO) by internal switchover MOSFET.
It can save power • 70% Under-Voltage and 125% Over-Voltage Protec- dissipation.
The charge pump circuit with 270kHz clock tions (PWM) • Adjustable Current-Limit Prot...


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