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APW8716A
Active
High Input Voltage 12A PWM Converter With Adjustable Soft Start
Features
- ±1% Accuracy over Temperature
General Description
The APW8716A is a 12A, synchronous, step-down converter with integrated 9.7mΩ N-channel High-Side MOSFET and 5.2mΩ Low-Side MOSFET. The APW8716A steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The APW8716A provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), theAPW8716A 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 APW8716A 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 LDO to prevent wrong operation during power-on. The APW8716A 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 APW8716A is available in TQFN5x5-30 (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 5V 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 300kHz to 1000kHz
- Integrated 9.7mΩ at LDO=5V N-Channel MOSFET For High Side
- Integrated 5.2mΩ 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-30 5mmx5mm package
- Lead Free and Green Device Available (RoHS Compliant)
General Description
The APW8716A is a 12A, synchronous, step-down converter with integrated 9.7mΩ N-channel High-Side MOSFET and 5.2mΩ Low-Side MOSFET. The APW8716A steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. The APW8716A provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), theAPW8716A 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 APW8716A 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 LDO to prevent wrong operation during power-on. The APW8716A 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 APW8716A is available in TQFN5x5-30 (Power PAK).
