APW7325 Datasheet, PDF (1/16 Pages) Anpec Electronics Coropration – 5A 5V 1MHz Synchronous Buck Converter

APW7325
5A 5V 1MHz Synchronous Buck Converter
Features
General Description
• High Efficiency up to 95%
APW7325 is a 5A synchronous buck converter with inte-
- Automatic PFM/PWM Mode Operation
grated 65mΩ high side and 55mΩ low side power
•
Adjustable Output Voltage from 0.6V to V
PVDD
MOSFETs. The APW7325, design with a current-mode
• Integrated 65mΩ High Side / 55mΩ Low Side ^{control scheme, can convert wide input voltage of 2.6V to}
MOSFETs
• Low Dropout Operation: 100% Duty Cycle
• Stable with Low ESR Ceramic Capacitors
• Power-On-Reset Detection on VDD and PVDD
6V to the output voltage adjustable from 0.6V to 6V to
provide excellent output voltage regulation.
The APW7325 is equipped with an automatic PFM/PWM
mode operation. At light load , the IC operates in the PFM
mode to reduce the switching losses. At heavy load, the
• Integrated Soft-Start and Soft-Stop
IC works in PWM mode. At PWM mode, the switching
• Over-Temperature Protection
frequency is set by the external resistor.
• Over-Voltage Protection
The APW7325 is also equipped with Power-on-reset, soft-
• Under-Voltage Protection
• High/ Low Side Current Limit
• Power Good Indication
• Enable/Shutdown Function
• Small SOP-8P Package
start, soft-stop, and whole protections (under-voltage,
over-voltage, over-temperature and current-limit) into a
single package.
This device, available SOP-8P, provides a very compact
system solution external components and PCB area.
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Pin Configuration
• Notebook Computer & UMPC
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUBr
• Portable Instrument
NC 1
LX 2
NC 3
EN 4
APW7325
9
GND
8 GND
7 PVDD
6 VDD
5 FB
SOP-8P
(Top View)
9
GND
Exposed pad
The pin 6 must
be
connected
to
the
pin
9
(exposed
pad)
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.2 - Sep., 2013
www.anpec.com.tw