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National P/N LM2596 - SIMPLE SWITCHER Power Converter 150 KHz 3A Step-Down Voltage Regulator
LM2596SX-ADJ TO 263
5
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LM2596S
-ADJ P+
LM2596-12
MDC
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LM2596-3.3
MDC
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LM2596-5.0
MDC
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LM2596-ADJ
MDC
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LM2596-12
MWC
Wafer
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LM2596-3.3
MWC
Wafer
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LM2596-5.0
MWC
Wafer
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LM2596-ADJ
MWC
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General Description
The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a
step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation.
These devices are available in fixed output voltages 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 LM2596 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-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package.
A standard series of inductors are available from several different manufacturers optimized for use with the
LM2596 series. This feature greatly simplifies the design of switch-mode power supplies.
Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and
output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring
typically 80 A 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
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2596.html (3 of 5) [Aug-09-2002 2:29:22 PM]
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相关代理商/技术参数
LM2596ADPBCKGEVB 功能描述:BOARD EVAL LM2596ADJ BUCK D2PAK RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
LM2596ATPBCKGEVB 功能描述:BOARD EVAL LM2596ADJ BUCK TO-220 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
LM2596DSADJG 功能描述:直流/直流开关调节器 3A BUCK SWCH 150KHZ RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
LM2596DSADJR4G 功能描述:直流/直流开关调节器 3A BUCK SWCH 150KHZ RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
LM2596S 制造商:Texas Instruments 功能描述:
LM2596S-12 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
LM2596S12 制造商:Texas Instruments 功能描述:IC SWITCHING REG 3A 12V SMD 2596
LM2596S-12/NOPB 功能描述:直流/直流开关转换器 150 KHZ 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