홈 전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨버터(통합 FET)

LM46001

활성

3.5~60V, 1A 동기 스텝다운 전압 컨버터

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR36510 활성 26uA IQ를 지원하는 SIMPLE SWITCHER® 4.2V~65V, 1A 동기 스텝다운 컨버터 Higher input voltage rating, easy to use SO-8 package and an FPWM option.
TPSM33615 활성 3V~36V 입력, 1V~15V 출력, 1.5A 동기식 벅 전원 모듈 Smaller design with an integrated-inductor power module.

LM46001

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3.5 Vin (max) (V) 60 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 24 Duty cycle (max) (%) 99
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3.5 Vin (max) (V) 60 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 24 Duty cycle (max) (%) 99
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 24-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI standards
  • Integrated Synchronous Rectification
  • Adjustable Switching Frequency: 200 kHz to 2.2 MHz (500 kHz default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable With Many Combinations of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft Start into Pre-Biased Load
  • Internal Soft Start: 4.1 ms
  • Extendable Soft-Start Time by External Capacitor
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short-Circuit Protection With Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM46001 With the WEBENCH® Power Designer
  • 24-µA Quiescent Current in Regulation
  • High Efficiency at Light Load (DCM and PFM)
  • Meets EN55022/CISPR 22 EMI standards
  • Integrated Synchronous Rectification
  • Adjustable Switching Frequency: 200 kHz to 2.2 MHz (500 kHz default)
  • Frequency Synchronization to External Clock
  • Internal Compensation
  • Stable With Many Combinations of Ceramic, Polymer, Tantalum, and Aluminum Capacitors
  • Power-Good Flag
  • Soft Start into Pre-Biased Load
  • Internal Soft Start: 4.1 ms
  • Extendable Soft-Start Time by External Capacitor
  • Output Voltage Tracking Capability
  • Precision Enable to Program System UVLO
  • Output Short-Circuit Protection With Hiccup Mode
  • Overtemperature Thermal Shutdown Protection
  • Create a Custom Design Using the LM46001 With the WEBENCH® Power Designer

The LM46001 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46001 provides exceptional efficiency, output accuracy, and dropout voltage in a very small solution size. An extended family is available in 0.5-A and 2-A load current options in pin-to-pin compatible packages. Peak-current-mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light-load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46001 device is available in the 16-lead HTSSOP package (PWP, 6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. The device is pin-to-pin compatible with LM46000, LM46002, LM43603, LM43602, LM43601, and LM43600.

The LM46001 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 1 A of load current from an input voltage ranging from 3.5 V to 60 V. The LM46001 provides exceptional efficiency, output accuracy, and dropout voltage in a very small solution size. An extended family is available in 0.5-A and 2-A load current options in pin-to-pin compatible packages. Peak-current-mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency reduction at light loads improve light-load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCC undervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM46001 device is available in the 16-lead HTSSOP package (PWP, 6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. The device is pin-to-pin compatible with LM46000, LM46002, LM43603, LM43602, LM43601, and LM43600.

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기술 자료

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31개 모두 보기
유형 직함 날짜
* Data sheet LM46001 3.5-V to 60-V, 1-A Synchronous Step-Down Voltage Converter datasheet (Rev. B) PDF | HTML 2018/01/11
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021/07/26
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
Application note Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019/03/12
Application note Differences Between LM4600x/LM4360x A and Non-A OPNs 2018/03/27
White paper Synchronous Rectification in High-Performance Power Converter Design (Rev. A) 2016/09/15
More literature SIMPLE SWITCHER Synchronous Regulator Series (Rev. B) 2016/02/08
Application note Cap Drop Offline Supply for E-Meters 2015/06/16
Application note Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A) 2015/06/16
Technical article Inverting made simple by unleashing the buck PDF | HTML 2015/05/19
Application note Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B) 2015/02/20
Application note Thermal Design Made Simple With LM43603 and LM46002 2014/09/15
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014/09/12
Application note Compensation Made SIMPLE With LM4360x, LM4600x 2014/07/29
EVM User's guide LM46001EVM User's Guide 2014/04/16
Application note AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B) 2013/05/06
Application note AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 2013/05/06
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013/04/24
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013/04/23
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013/04/23
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013/04/23
Application note AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013/04/23
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013/04/23
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013/04/23
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013/04/23
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013/04/23
Application note Understanding and Applying Current-Mode Control Theory 2007/08/19
Application note Input and Output Capacitor Selection 2005/09/19
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005/07/12
Application note AN-643 EMI/RFI Board Design (Rev. B) 2004/05/03

설계 및 개발

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시뮬레이션 모델

LM46001 Non-Inverting and Inverting PSpice Transient Model (Rev. A)

SLIM319A.ZIP (558 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM46001 PSpice Average Model

SLIM320.ZIP (75 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM46001 Unencrypted Non-Inverting and Inverting PSpice Transient Model (Rev. A)

SNVM726A.ZIP (7 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM46001 Unencrypted PSpice Average Model

SNVM725.ZIP (1 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-01056 — EMI를 최소화하면서 전원 공급 장치의 효율을 최적화하는 20비트 1MSPS DAQ 레퍼런스 설계

This reference design for high performance data acquisition (DAQ) systems optimizes power stage in order to reduce power consumption and minimize the effect of EMI from switching regulator by using LMS3635-Q1 buck converter.  This reference designs yields 7.2% efficiency improvement at most (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01054 — 고성능 DAQ 시스템에서 EMI 효과를 제거하는 다중 레일 전원 레퍼런스 디자인

The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01055 — 고성능 DAQ 시스템을 위한 ADC 전압 레퍼런스 버퍼 최적화 레퍼런스 디자인

The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01057 — 트루 10Vpp 차동 입력을 위해 신호 동적 범위를 20비트 ADC로 극대화하는 레퍼런스 설계

This reference design is designed for high performance data acquisition(DAQ) systems to improve the dynamic range of 20 bit differential input ADCs. Many DAQ systems require the measurement capability at a wide FSR (Full Scale Range) in order to obtain sufficient signal dynamic range. Many earlier (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01051 — 자동 테스트 장비에 대한 FPGA 활용률 및 데이터 처리량 최적화 레퍼런스 디자인

The TIDA-01051 reference design is used to demonstrate optimized channel density, integration, power consumption, clock distribution and signal chain performance of very high channel count data acquisition (DAQ) systems such as those used in automatic test equipment (ATE). Using serializers, such (...)
Design guide: PDF
회로도: PDF
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HTSSOP (PWP) 16 Ultra Librarian
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주문 및 품질

포함된 정보:
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  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
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  • 팹 위치
  • 조립 위치

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