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SGM6232YPS8G/TR

更新时间： 2024-01-29 04:56:53
品牌 Logo 应用领域
圣邦微 - SGMICRO /
页数 文件大小 规格书
14页 1030K
描述
2A, 38V, 1.4MHz Step-Down Converter

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中文翻译

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SGM6232YPS8G/TR 数据手册

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SGM6232  
2A, 38V, 1.4MHz Step-Down Converter  
GENERAL DESCRIPTION  
FEATURES  
The SGM6232 is a current-mode step-down regulator  
with an internal power MOSFET. This device achieves  
2A continuous output current over a wide input supply  
range from 4.5V to 38V with excellent load and line  
regulations. The switching frequency of SGM6232 is  
1.4MHz and current mode operation provides fast  
transient response and eases loop stabilization.  
● 2A Output Current  
● High Efficiency: Up to 91%  
● 4.5V to 38V Input Voltage Range  
● < 18µA Shutdown Supply Current  
● 100mΩ Internal Power MOSFET Switch  
● Fixed 1.4MHz Switching Frequency  
● Output Adjustable from 0.8V to 28V  
● Cycle-by-Cycle Current Limit Protection  
● Thermal Shutdown Protection  
The SGM6232 is highly efficient with peak efficiency at  
91% when in operation. In shutdown mode the  
regulator draws less than 18µA of supply current.  
Protection features include cycle-by-cycle current limit  
and thermal shutdown. The device also includes an  
internal soft-start and an external adjustable soft-start  
function to limit the inrush current and prevent the  
overshoot of output voltage.  
● Under-Voltage Lockout  
● Stable with Low ESR Ceramic Capacitors  
● -40℃ to +85℃ Operating Temperature Range  
● Available in Green SOIC-8 (Exposed Pad) Package  
APPLICATIONS  
Distributed Power Systems  
Battery Chargers  
The SGM6232 is available in Green SOIC-8 (Exposed  
Pad) package and requires a minimum number of  
readily available external components to complete a 2A  
step- down DC/DC converter solution.  
Flat Panel TVs  
Set-Top Boxes  
Pre-Regulator for Linear Regulators  
Cigarette Lighter Powered Devices  
DVD/PVR Devices  
TYPICAL APPLICATION  
R4  
C5  
10Ω or shorted 10nF  
100  
INPUT  
4.5V to 38V  
VOUT = 5.0V  
L
90  
IN  
EN  
BS  
4.7μH  
OUTPUT  
3.3V/2A  
ENABLE  
SW  
80  
70  
60  
50  
40  
30  
VOUT = 3.3V  
SGM6232  
R1  
33kΩ  
SS  
GND  
FB  
COMP  
R2  
10.5kΩ  
COUT  
47μF  
CIN  
C3  
5.6nF  
R3  
10kΩ  
D1  
B340A  
22μF  
ceramic cap  
recommended  
C4  
0.1μF  
C6  
Optional  
VIN = 12V  
2.5 3.5  
0
0.5  
1
1.5  
2
3
Load Current (A)  
Figure 1. Typical Application Circuit  
SG Micro Corp  
JULY 2015 – REV. A. 2  
www.sg-micro.com  
1234567...14

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