APW8833 Datasheet | ANPEC

Features Simplified Application Circuit - Wide Input voltage Range from 5.5V to 25V - Provide 5 Independent Outputs with ±1.0% Accu- 5.5V~25V racy Over-Temperature VLDO5 Q1 EN1 EN2 LDO5 LDO3 - PWM1 Controller with Adjustable (2V to 5.5V) Out- VOUT1 L1 put - PWM2 Controller with Adjustable (2V to 5.5V) Out- Q2 put PWM1 PWM2 Charge Pump - 100m A Low Dropout Regulator (LDO5) with Fixed 5V Output C1 D2 D3 C3 Q3 L2 VLDO3 VOUT2 Q4 D4 - 100m A Low Dropout Regulator (LDO3) with Fixed 3.3V Output D1 C2 C4 - 250k Hz Clock Signal for 15V Charge Pump (Used General Description PWM1 as Its Power Supply) The APW8833 integrates dual step-down, constant-on- - Excellent Line/Load Regulations about ±1.5% over time, synchronous PWM controllers (that drives dual N- temperature range at PWM Channels channel MOSFETs for each channel) and two low drop- - Low Consumption in Standby Mode out regulators as well as various protections into a chip. - 2Cells Input Battery Support The PWM controllers step down high voltage of a battery - Built in POR Control Scheme Implemented to generate low-voltage for NB applications. The output - Constant On-Time Control Scheme of PWM1 and PWM2 can be adjusted from 2V to 5.5V by - Built in Soft Start for PWM Outputs and Soft Stop setting a resistive voltage-divider from VOUTx to GND. 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 100m A output current. When the PWMx output...