AT1358 Datasheet PDF - Global Mixed-mode Technology

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AT1358
Global Mixed-mode Technology

Part Number AT1358
Description 1A Synchronous Buck Converter
Page 1 Pages


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Global Mixed-mode Technology Inc.
AT1358
1MHz, 1A Synchronous Buck Converter with
500mA LDO
Features
General Description
Operation Voltage 2.7V~5.5V
The AT1358N/AT1358AN provides complete control for a
Oscillation Frequency 1MHz
DC/DC converter optimized for high-performance
Output Current Maximum 1ADC-DC Convertermicroprocessor applications. AT1358N consists of a
Built-In 500mA/LDO
synchronous step-down DC/DC converter and a
AT1358 Built-in Timing Control
high-speed LDO regulator. AT1358AN consists of a
AT1358A with extra 100mA/LDO
synchronous step-down DC/DC converter and two
Built-In Current Limit
high-speed LDO regulators. DC/DC converter and LDO
Built-In UVLO
regulators have the different power input. DC/DC
Built-In Thermal Shut-Down
converter is operated on current mode architecture for
excellent line and load transient response. 1MHz
operation frequency is allowing the use of small surface
mount inductor and capacitor. The internal synchronous
Applications
switch increases efficiency and eliminates the need for
an external schottky diode. The AT1358N/AT1358AN is a
Power Supply for Slim Type devices
family of low-noise synchronous step-down DC/DC
converters that is ideally suited for systems powered
form a 1-cell Li-ion battery or from a 3-cell to 4-cell NiCd,
NiMH, or alkaline battery. It can also be used to
USB-based power system.
Ordering Information
Part Number
AT1358N_GRE
AT1358AN_GRE
Package
TDFN3x3-8,Green
TDFN3x3-8,Green
*For more marking information, contact our sales representative directly.
Marking
1358N
1358AN
Pin Configuration
AT1358N
VIN2 1
VIN1 2
SW
PGND
3
4
Thermal
Pad
8 3V3
7 AGND
6 VBG
5 FB1
TDFN3X3-8
AT1358AN
1V8 1
VIN1 2
VIN2 3
SW 4
Thermal
Pad
8 3V3
7 AGND
6 VBG
5 FB1
TDFN3X3-8
Ver: 0.1
Nov 12, 2008
TEL: 886-3-5788833
http://www.gmt.com.tw
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AT1358 1A Synchronous Buck Converter AT1358
Global Mixed-mode Technology
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