Boost Converter. APW7277 Datasheet

APW7277 Converter. Datasheet pdf. Equivalent

Part APW7277
Description Synchronous Boost Converter
Feature APW7277 5V, 5A, 1.2MHz Synchronous Boost Converter Features General Description • 92% Effiicency.
Manufacture ANPEC
Datasheet
Download APW7277 Datasheet




APW7277
APW7277
5V, 5A, 1.2MHz Synchronous Boost Converter
Features
General Description
92% Effiicency Synchronous Boost Converter With The APW7277 is a synchronous rectifier, fixed switching
1000-mA Output Current From 1.8V Input
frequency (1.2MHz typical), and current-mode step-up
Stable with Low ESR Output Capacitors
regulator. The device allows use of small inductors and
Fixed 1.2MHz Oscillator Frequency
output capacitors for USB devices. The current-mode
Low EMI Converter (Integrated Anti-Ringing control scheme provides fast transient response and
Function)
good output voltage accuracy.
Low Battery Output
At light loads, the APW7277 will automatically enter in
Pulse Frequency Modulation (PFM) operation to reduce
Integrated Power Save Mode Operation to Improve the dominant switching losses. During PFM operation,
Light Load Efficiency
Load Disconnected During Shutdown
the IC consumes very low quiescent current and
maintains high efficiency over the complete load range.
Output Current-Limit Protection
The APW7277 also includes current-limit and over-
Over Temperature Protection
temperature shutdown to prevent damage in the event
Under Voltage Protection
of an output overload.
Enable/Shutdown Function
The APW7277 is available in 4mmx4mm TQFN4x4-16
Available in TQFN4x4-16 and DFN3x3-12 Packages and DFN3x3-12 packages.
Lead Free and Green Devices Available
(RoHS Compliant)
Applications
Pin Configuration
Power Bank
Tablet
Portable Equiment
(Exposed Pad)
PGND
PGND 1
PGND 2
NC 3
VBAT 4
PSI 5
NC 6
(Exposed
PAD)
PGND
12 SW
11 SW
10 VOUT
9 FB
8 GND
7 EN
Exposed PAD on bankside
DFN3x3-12
TOP VIEW
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 - Sep, 2013
1
www.anpec.com.tw



APW7277
APW7277
Ordering and Marking Information
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-020C 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
VOUT
VBAT
VSW
Output and IC Supply Voltage (VOUT to GND)
Converter Supply Voltage (VBAT to GND)
SW to GND Voltage
>30ns
<30ns
-0.3 ~ 7
-0.3 ~ 7
-0.3 ~ 7
-3 ~ 9
V
V
V
V
LBI, SYNC, EN, LBO and FB to GND Voltage
-0.3 ~ 7
V
PGND to GND
-0.3 ~ +0.3
V
PD Power Dissipation
TJ Maximum Junction Temperature
TSTG
Storage Temperature
TSDR Maximum Lead Soldering Temperature (10 Seconds)
-
150
-65 ~ 150
260
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.
Copyright © ANPEC Electronics Corp.
Rev. A.2 - Sep, 2013
2
www.anpec.com.tw







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