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APW8715A
Active
High Input Voltage 6A PWM Converter With Adj. Soft Start
Features
- ±1% Accuracy over Temperature
General Description
The APW8715A is a 6A, synchronous, step-down converter with integrated 30mΩ N-channel High-Side MOSFET and 12mΩ Low-Side MOSFET. The APW8715A steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The APW8715A provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), theAPW8715A provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. The APW8715A is equipped with accurate current-limit, output under-voltage, and output over-voltage protections, perfect for various applications. A Power-On-Reset function monitors the voltage on VLDO to prevent wrong operation during power-on. The APW8715A has external adjustable soft-start and built-in an integrated output discharge method for soft stop. A soft-start ramps up the output voltage with programmable timing to reduce the start-up current. A soft-stop function actively discharges the output capacitors. The APW8715A is available in TQFN4x4-23 (Power PAK).
Features
- Adjustable Output Voltage from +0.8V to +12V
- ±1% Accuracy over Temperature
- Operates from An Input Battery Voltage Range of +2.7V to +28V
- 20mA Low Dropout Regulator (LDO) with Fixed 5.3V Output
- Power-On-Reset Monitoring on LDO pin
- Excellent line and load transient responses
- PFM mode for increased light load efficiency
- Programmable PWM Frequency from 100kHz to 1000kHz
- Integrated 30mΩ at LDO=5V N-Channel MOSFET For High Side
- Integrated 12mΩ at LDO=5V N-Channel MOSFET For Low Side
- Integrated Bootstrap Forward P-CH MOSFET
- External Adjustable Soft-Start and Soft-Stop
- Selectable Forced PWM or automatic PFM/PWM mode
- Power Good Monitoring
- 70% Under-Voltage Protection
- 125% Over-Voltage Protection
- Current-Limit Protection
- Over-Temperature Protection
- TQFN-23 4mmx4mm package
- Lead Free and Green Device Available (RoHS Compliant)
General Description
The APW8715A is a 6A, synchronous, step-down converter with integrated 30mΩ N-channel High-Side MOSFET and 12mΩ Low-Side MOSFET. The APW8715A steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The APW8715A provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), theAPW8715A provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. The APW8715A is equipped with accurate current-limit, output under-voltage, and output over-voltage protections, perfect for various applications. A Power-On-Reset function monitors the voltage on VLDO to prevent wrong operation during power-on. The APW8715A has external adjustable soft-start and built-in an integrated output discharge method for soft stop. A soft-start ramps up the output voltage with programmable timing to reduce the start-up current. A soft-stop function actively discharges the output capacitors. The APW8715A is available in TQFN4x4-23 (Power PAK).
