APW7313 Datasheet, PDF (1/20 Pages) Anpec Electronics Coropration – 3A 24V 340kHz synchronous Buck Converter

APW7313
3A 24V 340kHz synchronous Buck Converter
Features
General Description
• Wide Input Voltage from 4.5V to 24V
APW7313 is a 3A synchronous buck converter with inte-
• 3A Continuous Output Current
grated 110mΩ power MOSFETs. The APW7313 design
• Adjustable Output Voltage from 0.925V to 20V
with a current-mode control scheme, can convert wide
• Intergrated High/Low Side MOSFET
input voltage of 4.5V to 24V to the output voltage adjust-
• PFM/PWM mode Operation
• Fixed 340kHz Switching Frequency
able from 0.925V to 20V to provide excellent output volt-
age regulation.
The APW7313 is equipped with an automatic PFM/PWM
• Stable with Low ESR Ceramic Output Capacitors _{mode operation. At light load, the IC operates in the PFM}
• Power-On-Reset Detection
mode to reduce the switching losses. At heavy load, the
• Programmable Soft-Start
IC works in PWM.
• Over-Temperature Protection
The APW7313 is also equipped with Power-on-reset, soft-
• Current-Limit Protection with Frequency Foldback ^{start, and whole protections (over-temperature, and cur-}
• Enable/Shutdown Function
rent-limit) into a single package.
• Small SOP-8P Package
• Lead Free and Green Devices Available
This device, available SOP-8P, provides a very compact
system solution external components and PCB area.
(RoHS Compliant)
Applications
Pin Configuration
• LCD Monitor/TV
• Set-Top Box
• DSL, Switch HUB
• Notebook Computer
Simplified Application Circuit
V_IN
APW7313
BS 1
VIN 2
LX 3
GND 4
9
GND
8 SS
7 EN
6 COMP
5 FB
SOP-8P
(Top View)
9 Exposed Pad
The pin 4 must be connected to the pin 9 (Exposed Pad)
APW7313
V_OUT
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.6 - Apr., 2013
www.anpec.com.tw