LM2594

활성

SIMPLE SWITCHER® 40V, 500mA 적은 부품 수의 스텝다운 레귤레이터

지금 주문하기

데이터 시트

document-pdfAcrobat LM2594xx SIMPLE SWITCHER Power Converter, 150-kHz, 0.5-A, Step-Down Voltage Regulator datasheet (Rev. F) (영어) PDF | HTML

이 제품의 최신 버전이 있습니다

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.

LMR36506

활성

4μA IQ의 3V~65V, 0.6A 초소형 동기 벅 컨버터 Next-generation converter with smaller package size, greater efficiency, and lower quiescent current.

TPSM365R6

활성

3V~65V 입력, 1V~13V 출력, 0.6A 동기식 벅 컨버터 전원 모듈 Next-generation with spread spectrum and frequency synchronization.

LM2594

활성

지금 주문하기

제품 상세 정보

Rating

Catalog

Topology

Buck

Iout (max) (A)

0.5

Vin (max) (V)

40

Vin (min) (V)

4.5

Vout (max) (V)

37

Vout (min) (V)

3.3

Features

Enable, Overcurrent 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)

0.5

Vin (max) (V)

40

Vin (min) (V)

4.5

Vout (max) (V)

37

Vout (min) (V)

3.3

Features

Enable, Overcurrent protection

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.005

Duty cycle (max) (%)

100

PDIP (P)

8

92.5083 mm² (9.81 mm × 9.43 mm)

SOIC (D)

8

29.4 mm² (4.9 mm × 6 mm)

New product available:
- LMR36506 3-V to 65-V 0.6-A ultra-small synchronous buck converter
For faster time to market:
- TPSM365R6 3-V to 65-V, 600-mA/300-mA synchronous buck power module
3.3-V, 5-V, 12-V, and adjustable output versions
Adjustable version output voltage range: 1.2 V to 37 V (57-V for the HV version), ±4% maximum over line and load conditions
Available in 8-pin surface-mount SOIC and 8-pin PDIP packages
Ensured 0.5-A output current
Input voltage range up to 60 V
Requires only four external components
150-kHz fixed-frequency internal oscillator
TTL shutdown capability
Low power standby mode, I Q typically 85 µA
High efficiency
Uses readily-available standard inductors
Thermal shutdown and current-limit protection
Create a custom design using the LM2594HV with the WEBENCH Power Designer

New product available:
- LMR36506 3-V to 65-V 0.6-A ultra-small synchronous buck converter
For faster time to market:
- TPSM365R6 3-V to 65-V, 600-mA/300-mA synchronous buck power module
3.3-V, 5-V, 12-V, and adjustable output versions
Adjustable version output voltage range: 1.2 V to 37 V (57-V for the HV version), ±4% maximum over line and load conditions
Available in 8-pin surface-mount SOIC and 8-pin PDIP packages
Ensured 0.5-A output current
Input voltage range up to 60 V
Requires only four external components
150-kHz fixed-frequency internal oscillator
TTL shutdown capability
Low power standby mode, I Q typically 85 µA
High efficiency
Uses readily-available standard inductors
Thermal shutdown and current-limit protection
Create a custom design using the LM2594HV with the WEBENCH Power Designer

The LM2594xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-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, and are packaged in a 8-pin PDIP and a 8-pin surface-mount SOIC package.

Requiring a minimum number of external components, these regulators are simple to use and feature internal frequency compensation, a fixed-frequency oscillator, and improved line and load regulation specifications.

The new product, LMR36506, offers reduced BOM cost, higher efficiency, and smaller solution size with many other features. See the Device Comparison Table to compare specs. Start WEBENCH Design with LMR36506.

A standard series of inductors (both through-hole and surface-mount types) are available from several different manufacturers optimized for use with the LM2594xx series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include an ensured ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 85-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 LM2594HV is for applications requiring an input voltage up to 60 V.

The LM2594xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-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, and are packaged in a 8-pin PDIP and a 8-pin surface-mount SOIC package.

Requiring a minimum number of external components, these regulators are simple to use and feature internal frequency compensation, a fixed-frequency oscillator, and improved line and load regulation specifications.

The new product, LMR36506, offers reduced BOM cost, higher efficiency, and smaller solution size with many other features. See the Device Comparison Table to compare specs. Start WEBENCH Design with LMR36506.

A standard series of inductors (both through-hole and surface-mount types) are available from several different manufacturers optimized for use with the LM2594xx series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include an ensured ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 85-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 LM2594HV is for applications requiring an input voltage up to 60 V.

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21개 모두 보기

상위 문서	유형	직함	형식 옵션
*	데이터 시트	LM2594xx SIMPLE SWITCHER Power Converter, 150-kHz, 0.5-A, Step-Down Voltage Regulator datasheet (Rev. F)	PDF \| HTML	2023. 5. 31
	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-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