Step-Down Converter. APW7328 Datasheet

APW7328 Converter. Datasheet pdf. Equivalent

Part APW7328
Description Synchronous Step-Down Converter
Feature APW7328 3.5A, 5V, 1.2MHz Synchronous Step-Down Converter Features General Description • 3.5A Con.
Manufacture ANPEC
Datasheet
Download APW7328 Datasheet




APW7328
APW7328
3.5A, 5V, 1.2MHz Synchronous Step-Down Converter
Features
General Description
3.5A Continuous Output Current
Operating Voltage Range : 2.7V~5.5V
Fixed Switching Frequency : 1.2MHz (PWM)
0.6V Reference Voltage
PSM/PWM Operation
Low RDS(ON) Internal Power MOSFETs
OCP Protection and Thermal Shutdown
Internal Compensation
Short Circuit Protection with Hiccup mode
Fold-back Switching Frequency
Over Temperature Protection
Input Over Voltage Protection
TQFN2x2-12A package
Lead Free and Green Devices Available (RoHS
Compliant)
Simplified Application Circuit
The APW7328 is a high efficiency monolithic synchro-
nous buck converter. APW7328 operates with a constant
1.2MHz switching frequency and using the inductor cur-
rent as a controlled quantity in the current mode
architecture. The 2.7V to 5.5V input voltage range makes
the APW7328 ideally suited for single Li-Ion battery pow-
ered applications. 100% duty cycle provides low dropout
operation, extending battery life in portable electrical
devices. The internally fixed 1.2MHz operating frequency
allows the use of small surface mount inductors and
capacitors.
Applications
LCD TV
Storage Drives
Portable/Handheld Devices
Wireless/Networking Cards
VIN
2.7~5.5V
C1
VIN
PG SW
APW7328
VOUT
L1
C2
EN FB
AGND
PGND
R2
R1
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.4 - Mar., 2014
1
www.anpec.com.tw



APW7328
APW7328
Ordering and Marking Information
APW7328
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
QB : TQFN-2x2-12A
Operating Ambient Temperature Range
I : -40 to 85oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
APW7328 QB :
W28
X
X - Date Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Pin Configuration
VIN 10
VIN 1
SW 2
PGND 3
AGND 4
SW 11
PGND 12
9 PG
8 EN
7 FB
6 NC
NC 5
TQFN-2x2-12A
Absolute Maximum Ratings (Note 1)
Symbol
Parameter
Rating
Unit
VIN VIN to GND Voltage
VSW SW to GND Voltage
>20ns
<20ns
EN, FB, PG to GND Voltage
TJ Maximum Junction Temperature
TSTG
TSDR
Storage Temperature
Maximum Lead Soldering Temperature (10 Seconds)
-0.3 ~ 6
-0.3 ~ VIN+0.3
-3 ~ 8
-0.3 ~7
-40 ~ 150
-65 ~ 150
260
V
V
V
V
oC
oC
oC
Note1: Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are
stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recom-
mended operating conditions" is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability
Copyright © ANPEC Electronics Corp.
Rev. A.4 - Mar., 2014
2
www.anpec.com.tw







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