Copyright

© ANPEC Electronics Corp.

Rev. A.3 - Sep., 2013

APW8713

www.anpec.com.tw

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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.

High Input Voltage 8A PWM Converter With Adj. Soft Start

Features

General Description

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Adjustable Output Voltage from +0.8V to +12V

- 0.8V Reference Voltage

- +1% Accuracy over Temperature

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Operates from An Input Battery Voltage Range of

+2.7V to +28V

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Power-On-Reset Monitoring on VCC pin

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Excellent line and load transient responses

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PFM mode for increased light load efficiency

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Programmable PWM Frequency from 100kHz to

1000kHz

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Integrated 30m

Ω at VCC=5V N-Channel MOSFET

For High Side

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Integrated 9m

Ω at VCC=5V N-Channel MOSFET For

Low Side

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Integrated Bootstrap Forward P-CH MOSFET

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External Adjustable Soft-Start and Soft-Stop

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Selectable Forced PWM or automatic PFM/PWM

mode

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Power Good Monitoring

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70% Under-Voltage Protection

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125% Over-Voltage Protection

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Current-Limit Protection

- Using Sense Low-Side MOSFET’s RDS(ON)

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Over-Temperature Protection

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TQFN-23 4mmx4mm package

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Lead Free and Green Device Available (RoHS

Compliant)

Applications

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Notebook

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Mother Board

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Table PC

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Hand-Held Portable

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AIO PC

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Set-top boxes

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LCD TV

The APW8713 is a 8A, synchronous, step-down converter

with integrated 30m

Ω N-channel High-Side MOSFET and

9m

Ω Low-Side MOSFET. The APW8713 steps down high

voltage to generate low-voltage chipset or RAM supplies

in notebook computers.

The APW8713 provides excellent transient response and

accurate DC voltage output in either PFM or PWM Mode.

In Pulse Frequency Mode (PFM), the APW8713 provides

very high efficiency over light to heavy loads with loading-

modulated switching frequencies. In PWM Mode, the con-

verter works nearly at constant frequency for low-noise

requirements.

The APW8713 is equipped with accurate current-limit,

output under-voltage, and output over-voltage protections,

perfect for various applications. A Power-On-Reset func-

tion monitors the voltage on VCC to prevent wrong

operation during power-on. The APW8713 has external

adjustable soft-start and built-in an integrated output dis-

charge 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 APW8713 is available in TQFN4x4-23 (Power PAK).