Converter. APW7337 Datasheet

APW7337 Datasheet PDF

Part APW7337
Description 3A 24V 340kHz synchronous Buck Converter
Feature APW7337 3A 24V 340kHz synchronous Buck Converter Features General Description • Wide Input Volta.
Manufacture ANPEC
Datasheet
Download APW7337 Datasheet

APW7337 3A 24V 340kHz synchronous Buck Converter Features APW7337 Datasheet





APW7337
APW7337
3A 24V 340kHz synchronous Buck Converter
Features
General Description
Wide Input Voltage from 4.5V to 24V
APW7337 is a 3A synchronous buck converter with inte-
3A Continuous Output Current
grated 85mpower MOSFETs. The APW7337 design
Adjustable Output Voltage from 0.8V 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 0.8V to 20V to provide excellent output voltage
regulation.
The APW7337 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 APW7337 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 TDFN3x3-10 Package
Lead Free and Green Devices Available
This device, available TDFN3x3-10, provides a very com-
pact system solution external components and PCB area.
(RoHS Compliant)
Applications
Pin Configuration
LCD Monitor/TV
Set-Top Box
DSL, Switch HUB
Notebook Computer
APW7337
Simplified Application Circuit
VIN
TDFN3x3-10
(Top View)
11 Exposed Pad
The pin 7 and 8 must be connected to the pin 11 (Exposed Pad)
APW7337
VOUT
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.2 - Jul., 2013
1
www.anpec.com.tw



APW7337
APW7337
Ordering and Marking Information
APW7337
APW7337 QB :
APW
7337
XXXXX
Assembly Material
Handling Code
Temperature Range
Package Code
Package Code
QB : TDFN3x3-10
Temperature Range
I : -40 to 85 oC
Handling Code
TR : Tape & Reel
Assembly Material
G : Halogen and Lead Free Device
XXXXX - 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).
Absolute Maximum Ratings (Note 1)
Symbol
Parameter
Rating
Unit
VIN VIN Supply Voltage (VIN to GND)
VLX LX to GND Voltage
EN, FB, COMP, SS to GND Voltage
-0.3 ~ 30
-1 ~VIN+0.3
-0.3 ~ 6
V
V
V
VBS
PD
TJ
TSTG
TSDR
BS to GND Voltage
Power Dissipation
Junction Temperature
Storage Temperature
Maximum Lead Soldering Temperature, 10 Seconds
VLX-0.3 ~ VLX+6
Internally Limited
150
-65 ~ 150
260
V
W
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
Thermal Characteristics
Symbol
θJA
θJC
Parameter
Junction-to-Ambient Resistance in Free Air (Note 2)
Junction-to-Case Resistance in Free Air
TDFN3x3-10
TDFN3x3-10
Typical Value
54
11
Unit
oC/W
oC/W
Note 2: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. The exposed pad
is soldered directly on the PCB.
Copyright © ANPEC Electronics Corp.
Rev. A.2 - Jul., 2013
2
www.anpec.com.tw




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