High Input Voltage 8A PWM Converter With Adj. Soft Start
• Adjustable Output Voltage from +0.8V to +12V
The APW8713B is a 8A, synchronous, step-down con-
- 0.8V Reference Voltage
verter with integrated 30mΩ N-channel High-Side
- +1% Accuracy over Temperature
MOSFET and 9mΩ Low-Side MOSFET. The APW8713B
• Operates from An Input Battery Voltage Range of steps down high voltage to generate low-voltage chipset
+2.7V to +28V
or RAM supplies in notebook computers.
• 20mA Low Dropout Regulator (LDO) with Fixed 5. The APW8713B provides excellent transient response and
• Power-On-Reset Monitoring on LDO pin
• Excellent line and load transient responses
accurate DC voltage output in either PFM or PWM Mode.
In Pulse Frequency Mode (PFM), the APW8713B provides
very high efficiency over light to heavy loads with loading-
modulated switching frequencies. In PWM Mode, the con-
• PFM mode for increased light load efficiency
verter works nearly at constant frequency for low-noise
• Programmable PWM Frequency from 100kHz to requirements.
The APW8713B is equipped with accurate current-limit,
• Integrated 30mΩ at LDO=5V N-Channel MOSFET output under-voltage, and output over-voltage protections,
For High Side
perfect for various applications. A Power-On-Reset func-
• Integrated 9mΩ at LDO=5V N-Channel MOSFET For tion monitors the voltage on VLDO to prevent wrong
operation during power-on. The APW8713B has external
• Integrated Bootstrap Forward P-CH MOSFET
adjustable soft-start and built-in an integrated output dis-
charge method for soft stop. A soft-start ramps up the
• External Adjustable Soft-Start and Soft-Stop
output voltage with programmable timing to reduce the
• Selectable Forced PWM or automatic PFM/PWM start-up current. A soft-stop function actively discharges
the output capacitors.
• Power Good Monitoring
The APW8713B is available in TQFN4x4-23 (Power PAK).
• 70% Under-Voltage Protection
• 125% Over-Voltage Protection
• Current-Limit Protection
- Using Sense Low-Side MOSFET’s RDS(ON)
• Over-Temperature Protection
• TQFN-23 4mmx4mm package
• Lead Free and Green Device Available (RoHS
• Mother Board
• Table PC
• Hand-Held Portable
• AIO PC
• Set-top boxes
• LCD TV
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. A.3 - Nov., 2015