APW8714D数据手册Anpec中文资料规格书

描述 Description

The APW8714D is a 6A, synchronous, step-down converter with integrated 30mΩ N-channel High-Side MOSFET and 12mΩ Low-Side MOSFET. The APW8714D steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers. TheAPW8714D provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the APW8714D 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 APW8714D 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 VCC to prevent wrong operation during power-on. The APW8714D 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 APW8714D is available in TQFN4x4-22 (Power PAK).

特性 Features

• Adjustable Output Voltage from +0.6V to +12V
- 0.6V Reference Voltage
- ±1% Accuracy over Temperature
• Operates from An Input Battery Voltage Range of +2.7V to +28V
• Power-On-Reset Monitoring on VCC pin
• Excellent line and load transient responses
• PFM mode for increased light load efficiency
• Programmable PWM Frequency from 100kHz to 1000kHz
• Integrated 30mΩ at VCC=5V N-Channel MOSFET For High Side
• Integrated 12mΩ at VCC=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
- Using Sense Low-Side MOSFET’s RDS(ON)
• Over-Temperature Protection
• TQFN-22 4mmx4mm package