APW8713 Datasheet, PDF (1/24 Pages) Anpec Electronics Coropration – High Input Voltage 8A PWM Converter With Adj. Soft Start

APW8713
High Input Voltage 8A PWM Converter With Adj. Soft Start
Features
General Description
• Adjustable Output Voltage from +0.8V to +12V
The APW8713 is a 8A, synchronous, step-down converter
- 0.8V Reference Voltage
with integrated 30mΩ N-channel High-Side MOSFET and
- +1% Accuracy over Temperature
9mΩ Low-Side MOSFET. The APW8713 steps down high
• Operates from An Input Battery Voltage Range of ^{voltage to generate low-voltage chipset or RAM supplies}
+2.7V to +28V
in notebook computers.
• Power-On-Reset Monitoring on VCC pin
The APW8713 provides excellent transient response and
• Excellent line and load transient responses
accurate DC voltage output in either PFM or PWM Mode.
• PFM mode for increased light load efficiency
In Pulse Frequency Mode (PFM), the APW8713 provides
very high efficiency over light to heavy loads with loading-
• Programmable PWM Frequency from 100kHz to _{modulated switching frequencies. In PWM Mode, the con-}
1000kHz
verter works nearly at constant frequency for low-noise
• Integrated 30mΩ at VCC=5V N-Channel MOSFET _{requirements.}
For High Side
The APW8713 is equipped with accurate current-limit,
• Integrated 9mΩ at VCC=5V N-Channel MOSFET For output under-voltage, and output over-voltage protections,
Low Side
perfect for various applications. A Power-On-Reset func-
• Integrated Bootstrap Forward P-CH MOSFET
tion monitors the voltage on VCC to prevent wrong
• External Adjustable Soft-Start and Soft-Stop
operation during power-on. The APW8713 has external
•
adjustable soft-start and built-in an integrated output dis-
Selectable Forced PWM or automatic PFM/PWM
charge method for soft stop. A soft-start ramps up the
mode
output voltage with programmable timing to reduce the
• Power Good Monitoring
start-up current. A soft-stop function actively discharges
• 70% Under-Voltage Protection
the output capacitors.
• 125% Over-Voltage Protection
The APW8713 is available in TQFN4x4-23 (Power PAK).
• Current-Limit Protection
- Using Sense Low-Side MOSFET’s RDS(ON)
• Over-Temperature Protection
Applications
• TQFN-23 4mmx4mm package
• Lead Free and Green Device Available (RoHS
Compliant)
• Notebook
• 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.
1
Rev. A.3 - Sep., 2013
www.anpec.com.tw