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G5ULM2596

更新时间： 2024-11-14 03:04:43
品牌 Logo 应用领域
GTM 稳压器
页数 文件大小 规格书
8页 503K
描述
Simple Switcher Power converter 150kHz 3A Step-Down Voltage Regulator

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中文翻译

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G5ULM2596 数据手册

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ISSUED DATE :2005/04/15  
REVISED DATE :2006/06/26B  
GTM  
CORPORATION  
G5ULM2596  
Simple Switcher Power converter 150kHz 3A Step-Down Voltage Regulator  
Description  
The G5ULM2596 series of regulators are monolithic integrated circuits that provide all active functions for a step-down (buck) switching  
regulator, capable of driving 3A load with excellent line and load regulation. These devices are available in fixed output voltage of 3.3v, 5v,  
12v and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and  
include internal frequency compensation and a fixed-frequency oscillator.  
The G5ULM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be  
needed with lower frequency switching regulators. Available in a standard 5-lead TO-263 package with several different lead bend options.  
A standard series if inductors are available from several different manufactures optimized for use with the G5ULM2596 series. This feature  
greatly simplifies the design of switch-mode power supplies. Other feature include a guaranteed ±4% to tolerance on output voltage under  
specified input voltages and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring 80uA  
standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature  
shutdown for complete protection under fault conditions.  
Features  
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3.3V, 5.0V, 12V and adjustable output versions  
Adjustable version output voltage range , 1.2V to 37V ±4% max over line and load conditions  
Guaranteed 3A output current  
Input voltage range up to 40V  
Efficient pre-regulator for linear regulators  
Requires only 4 external components  
150kHz fixed frequency internal oscillator  
TTL shutdown capability, low power standby mode  
High efficiency  
Uses readily available standard inductors  
Thermal shutdown and current limit protection  
Applications  
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Simple high-efficiency step-down (buck) regulator  
On-card switching regulators  
Positive to negative converter  
Package Dimensions  
Millimeter  
Millimeter  
REF.  
REF.  
Min.  
Max.  
4.80  
0.91  
0.30  
0.5  
Min.  
1.25  
Max.  
1.45  
A
b
L4  
c
L1  
E
4.40  
0.66  
0.00  
0.36  
2.29  
9.80  
c2  
L2  
D
e
L
ꢀ
1.27 REF.  
8.6  
9.0  
1.70 REF.  
14.6 15.8  
0˚ 8˚  
2.79  
10.4  
Typical Application (Fixed Output Voltage Version)  
12V  
Unregulated  
DC Input  
G5ULM2596-5.0  
33  
1N5824  
680  
220  
G5ULM2596  
Page: 1/8  
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