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G5752

更新时间： 2024-11-16 01:21:47
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2A Step-down DC/DC

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G5752 数据手册

  
G5752/G5752A  
Global Mixed-mode Technology  
2A Step-down DC/DC  
Features  
General Description  
„
„
„
2A Output Current  
The G5752/G5752A is a monolithic step-down switch  
mode regulator with a built in internal power MOSFET. It  
achieves 2A continuous output current over a wide input  
supply range with excellent load and line regulation.  
0.18Ω Internal Power MOSFET Switch  
Stable with Low ESR Output Ceramic Capaci-  
tors  
„
„
„
„
„
„
„
„
„
Up to 95% Efficiency  
30µA Shutdown Mode  
Fixed 380kHz Frequency  
Thermal Shutdown  
Current mode operation provides fast transient re-  
sponse and eases loop stabilization.  
Fault condition protection includes cycle-by-cycle cur-  
rent limiting, output short circuit protection and thermal  
shutdown. In shutdown mode the regulator draws  
30µA of supply current. Programmable soft-start over-  
writes the internal soft-start for various requirement of  
output power up ramp and minimizes the inrush supply  
current at initial startup.  
Cycle-by-Cycle Over Current Protection  
Wide 4.5V to 24V Operating Input Range  
Output Adjustable from 1.22V to 21.6V(G5752)  
Output Adjustable from 0.92V to 21.6V(G5752A)  
Available in SOP-8 & MSOP-10 (FD) Package  
Applications  
„
„
„
„
PC Monitors  
DSL Modems  
The G5752/G5752A requires a minimum number of  
readily available standard external components. It is  
available in a SOP-8 & MSOP-10 (FD) package.  
Distributed Power Systems  
Pre-Regulator for Linear Regulators  
Ordering Information  
ORDER  
NUMBER  
G5752P11U  
TEMP.  
RANGE  
PACKAGE  
(Green)  
SOP-8  
MARKING  
G5752  
G5752A  
G5752  
-40°C to +85°C  
G5752AP11U  
G5752F61U  
G5752AF61U  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
SOP-8  
MSOP-10 (FD)  
MSOP-10 (FD)  
G5752A  
Note: P1: SOP-8 F6: MSOP-10 (FD)  
1: Bonding Code  
U : Tape & Reel  
Pin Configuration  
Typical Application Circuit  
SOP-8 / MSOP-10 (FD) Pin No.  
C5  
10nF  
INPUT  
4.5V to 24V  
C1  
10µF  
35V  
2/4  
EN  
1/2  
BS  
L1  
IN  
15µH  
7/9  
3/5  
5/7  
OUTPUT  
2.5V/2A  
G5752/G5752A  
OFF  
LX  
ON  
R1  
10.5kΩ  
D1  
G5752  
1
2
3
4
8
7
6
5
SS  
BS  
IN  
8/10  
SS  
FB  
1%  
EN  
COMP  
6/8  
GND  
4/6  
C4  
10nF  
C2  
R2  
LX  
COMP  
FB  
22µF/35V  
CERAMIC  
10kΩ  
1%  
C3  
3.9nF  
C6  
OPEN  
GND  
R3  
10kΩ  
SOP-8  
C5  
10nF  
INPUT  
4.5V to 24V  
C1  
10µF  
35V  
2/4  
IN  
1/2  
G5752/G5752A  
L1  
15µH  
BS  
LX  
3/5  
7/9  
OUTPUT  
3.3V/2A  
EN  
1
2
3
4
5
10  
9
OFF  
ON  
SS  
NC  
BS  
R1  
D1  
G5752A  
EN  
26.1kΩ  
5/7  
8/10  
Thermal  
Pad  
SS  
FB  
COMP  
6/8  
NC  
IN  
8
COMP  
FB  
1%  
GND  
4/6  
C4  
10nF  
7
R2  
10kΩ  
1%  
C2  
6
LX  
GND  
22µF/35V  
CERAMIC  
C3  
C6  
3.9nF  
MSOP-10 (FD)  
OPEN  
R3  
10kΩ  
Note: Recommend connecting the Thermal Pad to  
the Ground for excellent power dissipation.  
Note: Recommend choosing the small Vf of Diode to avoid LX to GND smaller then -0.7V.  
TEL: 886-3-5788833  
http://www.gmt.com.tw  
Ver: 0.91  
Jan 09, 2012  
1
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