LM2596

활성

SIMPLE SWITCHER® 4.5V~40V, 3A 적은 부품 수의 스텝다운 레귤레이터

지금 주문하기

데이터 시트

document-pdfAcrobat LM2596 SIMPLE SWITCHER® Power Converter 150-kHz 3-A Step-Down Voltage Regulator datasheet (Rev. G) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.

TPSM63603

활성

고밀도, 3V~36V 입력, 1V~16V 출력, 3A 전원 모듈 Next-generation with spread spectrum and frequency synchronization.

LMR51430

활성

40µA IQ를 지원하는 SIMPLE SWITCHER® 4.5V~36V, 3A 동기 벅 컨버터 Next-generation with lower IQ.

LM2596

활성

지금 주문하기

제품 상세 정보

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

40

Vin (min) (V)

4.5

Vout (max) (V)

37

Vout (min) (V)

3.3

Features

Enable, Over Current Protection

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

40

Vin (min) (V)

4.5

Vout (max) (V)

37

Vout (min) (V)

3.3

Features

Enable, Over Current Protection

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

100

TO-220 (NEB)

5

46.4312 mm² (10.16 mm × 4.57 mm)

TO-220 (NDH)

5

86.0552 mm² (10.16 mm × 8.47 mm)

TO-263 (KTT)

5

154.8384 mm² (10.16 mm × 15.24 mm)

New product available:
- LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-MHz synchronous converter
For faster time to market:
- TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz power module
3.3-V, 5-V, 12-V, and adjustable output versions
Adjustable version output voltage range: 1.2-V to 37-V ±4% maximum over line and load conditions
Available in TO-220 and TO-263 packages
3-A output load current
Input voltage range up to 40 V
Requires only four external components
Excellent line and load regulation specifications
150-kHz fixed-frequency internal oscillator
TTL shutdown capability
Low power standby mode, I Q, typically 80 µA
High efficiency
Uses readily available standard inductors
Thermal shutdown and current-limit protection
Create a custom design using the LM2596 with the WEBENCH Power Designer

New product available:
- LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-MHz synchronous converter
For faster time to market:
- TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz power module
3.3-V, 5-V, 12-V, and adjustable output versions
Adjustable version output voltage range: 1.2-V to 37-V ±4% maximum over line and load conditions
Available in TO-220 and TO-263 packages
3-A output load current
Input voltage range up to 40 V
Requires only four external components
Excellent line and load regulation specifications
150-kHz fixed-frequency internal oscillator
TTL shutdown capability
Low power standby mode, I Q, typically 80 µA
High efficiency
Uses readily available standard inductors
Thermal shutdown and current-limit protection
Create a custom design using the LM2596 with the WEBENCH Power Designer

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 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 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 can be required with lower frequency switching regulators. Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin 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 ±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 µA standby current. Self-protection features include a two stage frequency reducing current limit for the output switch and an overtemperature shutdown for complete protection under fault conditions.

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 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 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 can be required with lower frequency switching regulators. Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin 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 ±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 µA standby current. Self-protection features include a two stage frequency reducing current limit for the output switch and an overtemperature shutdown for complete protection under fault conditions.

filter

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기술 자료

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22개 모두 보기

상위 문서	유형	직함	형식 옵션
*	데이터 시트	LM2596 SIMPLE SWITCHER® Power Converter 150-kHz 3-A Step-Down Voltage Regulator datasheet (Rev. G)	PDF \| HTML	2023. 3. 22
	애플리케이션 노트	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024. 3. 25
	기술 문서	How to increase system reliability and simplify design using DC/DC converters	PDF \| HTML	2016. 6. 13
	기술 문서	The importance of accurate switching frequency and current limit when selecting bu	PDF \| HTML	2016. 4. 19
	기술 문서	Advantages of leaded packages in robust industrial designs	PDF \| HTML	2016. 3. 8
	애플리케이션 노트	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		2014. 9. 12
	애플리케이션 노트	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		2013. 4. 24
	애플리케이션 노트	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-1081 Low-Cost Low-Parts-Count DC/DC Converter With Multiple Outputs (Rev. B)		2013. 4. 23
	애플리케이션 노트	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		2013. 4. 23
	애플리케이션 노트	AN-1082 Adjust or Synchronize LM2586/88 Switching Frequency (Rev. B)		2013. 4. 23
	애플리케이션 노트	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		2013. 4. 23
	애플리케이션 노트	Simple Techniques Minimize Cross-Coupling in Distributed Power Systems		2007. 3. 21
	애플리케이션 노트	Buck Converters Provide a Battery Charger and System Power		2007. 3. 21
	애플리케이션 노트	Input and Output Capacitor Selection		2005. 9. 19
	추가 자료	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		2005. 7. 12
	애플리케이션 노트	AN-643 EMI/RFI Board Design (Rev. B)		2004. 5. 3