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参数资料
| 型号： | LM2576S-3.3 |
| 厂商： | Semtech Corporation |
| 元件分类： | 开关稳压 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗辐射高效，5安培开关稳压器 |
| 文件页数： | 1/19页 |
| 文件大小： | 441K |
| 代理商： | LM2576S-3.3 |
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www.semtech.com
LM2575 & LM2576
1A & 3A Miniconverter
Switching Regulators
POWER MANAGEMENT
Revision 1, January 2001
u Pin for pin replacement for Nationals LM2575/6
series
u DC-to-DC buck or buck/boost converter requiring
only 4 support components
u Fixed or adjustable voltages
u Preset output voltages of 3.3V, 5V and 12V
u Wide output voltage range, 1.23V to 35V
u 82% typical efficiency @ 5V out
u Wide input voltage range, 4V to 40V
u Inhibit/enable control pin
u Industrial temperature range
u TO-220 and TO-263 packages
The LM2575/6 series switching regulators are monolithic
integrated circuits designed for use in buck or buck/
boost regulator applications requiring accurate output
voltages over combined variations of line, load and
temperature. This unique series greatly simplifies
switching power supply design. The LM2575 has a
maximum output current of 1A and the LM2576 is rated
for 3A.
The LM2575/6 series miniconverters include a
switching regulator and compensation network all within
the same package. Just add a choke, catch diode and
two capacitors to obtain an efficient DC-to-DC converter.
The current limit and thermal shutdown features of the
LM2575/6 series fully protect the device against
overstress conditions.
The LM2575/6 series offers an alternative to popular 3
terminal linear regulators by providing higher efficiency
with reduced heatsink size. In many applications a heat
sink will not be required.
u Micro controller power supplies
u Medical equipment
u Industrial power supplies
u Instrumentation power supplies
Description
Features
Applications
Typical Application Circuits
5
7
5
2
M
L6
7
5
2
M
L
1
H
0
3
3H
0
1
D
1
A
3A
7
C
N
I
F
8
6F
0
2
1
C
T
U
O
F
0
3
3F
0
,
1
相关PDF资料 |
PDF描述 |
|---|---|
| LM2576T-12 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LM2576 | 3.0 A, 15 V, Step-Down Switching Regulator(3.0A,15V,降压型开关稳压器) |
| LM2742 | N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages |
| LM2931A | 100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection(100mA，可调输出，带有60V负载保护的低压差稳压器) |
| LM2931 | 100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection(100mA，可调输出，带有60V负载保护的低压差稳压器) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2576S-5.0 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2576S-5.0.TR | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Analog IC |
| LM2576S-5.0/NOPB | 功能描述:直流/直流开关转换器 3A STEP-DOWN VLTG REG RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM2576S-5.0/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter (DC-DC) / Switching Regu |
| LM2576S-5.0-NOPB | 制造商:TI 制造商全称:Texas Instruments 功能描述:SIMPLE SWITCHER?? 3A Step-Down Voltage Regulator |
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