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PDF AT1529 Data sheet ( Hoja de datos )

Número de pieza AT1529
Descripción 3.2A PWM Buck DC/DC Converter
Fabricantes Global Mixed-mode Technology 
Logotipo Global Mixed-mode Technology Logotipo



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No Preview Available ! AT1529 Hoja de datos, Descripción, Manual

Global Mixed-mode Technology Inc.
AT1529
1MHz, All-Ceramic, 3.2A PWM Buck DC/DC Converter
Features
„ Ceramic Input and Output Capacitors
„ Efficiency Up to 94%
„ Operate from 2.5V to 6V supply
„ Adjustable Output from 0.8V to VIN
„ Internal Soft-Start
„ Short-Circuit and Thermal-Overload Protection
„ Input Over Voltage Protection
„ RoHS Compliant
Applications
„ ASIC/DSP/µP/FPGA Core and I/O Voltages
„ Set-Top Boxes
„ Cellular Base Stations
„ Networking and Telecommunications
General Description
The AT1529 high-efficiency, DC/DC buck converter
delivers up to 3.2A of output current. The device oper-
ates from an input voltage of 2.5V to 6V and provides
an output voltage from 0.8V to VIN, making the AT1529
ideal for on-board post-regulation applications.
The AT1529 operate at a fixed frequency of 1MHz with
an efficiency of up to 94%. The high operating fre-
quency minimizes the size of external components.
Internal soft-start control circuitry reduces inrush cur-
rent. Short-circuit and thermal-overload protections
improve design reliability.
The AT1529 are available in a space-saving SOP-8
and TDFN3X3-8 package.
Ordering Information
ORDER
NUMBER
MARKING
AT1529F11U
A1529
AT1529RD1U
A1529
Note: F1:SOP-8 (FD) RD: TDFN3X3-8
1: Bonding Code
U: Tape & Reel
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
PACKAGE
(Green)
SOP-8 (FD)
TDFN3X3-8
Pin Configuration
Typical Application Circuit
VCC 1
REF 2
GND 3
FB 4
AT1529
Thermal
Pad
8 VIN
7 LX
6 PGND
5 EN
VCC 1
REF
GND
FB
2
3
4
AT1529
Thermal
Pad
8 VIN
7 LX
6 PGND
5 EN
SOP-8 (FD)
TDFN3X3-8
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
VIN
5V
10µF
AT1529
8 VIN
LX 7
10Ω
0.1µF
1 VCC
5 EN
ON OFF PGND
6
4
FB
REF 2
GND 0.1µF
3
VOUT = 0.8V ×
(1+
R1
R2
)
2.2µH
CFB* (option)
R1
R2 50k
16k
VOUT
3.3V
22µF
Ver: 0.3
Nov 29, 2010
TEL: 886-3-5788833
http://www.gmt.com.tw
1

1 page




AT1529 pdf
Global Mixed-mode Technology Inc.
Minimum Footprint PCB Layout Section
SOP-8 (FD)
TDFN3X3-8
AT1529
1in2 of 1oz PCB Layout Section
SOP-8 (FD)
Ver: 0.3
Nov 29, 2010
TEL: 886-3-5788833
http://www.gmt.com.tw
5

5 Page





AT1529 arduino
Global Mixed-mode Technology Inc.
Package Information
AT1529
SOP- 8 (FD) Package
Taping Specification
Ver: 0.3
Nov 29, 2010
PACKAGE
SOP-8 (FD)
QTY/REEL
2,500 ea
TEL: 886-3-5788833
http://www.gmt.com.tw
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