APW8822B
APW8822B is System Power PWM Controller manufactured by ANPEC.
- Part of the APW8822 comparator family.
- Part of the APW8822 comparator family.
APW8822/A/B/C
System Power PWM Controller for Notebook puters 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
VIN 6V~25V
VLDO5
VOUT1
ENILIM1 EN LDO ENILIM2
Q1
LDO5 LDO3
VLDO3 Q3
L1 PWM1 PWM2
L2 VOUT2
Q2
Q4
Charge Pump
- 100mA Low Dropout Regulator (LDO5) with Fixed
C1 D2
D3 C3 D4
5V Output
- 100mA Low Dropout Regulator (LDO3) with Fixed
D1
C2
C4
3.3V Output
- 270kHz Clock Signal for 15V Charge Pump (Used General...
