홈 전원 관리 AC/DC & DC/DC converters (integrated FET)
홈
전원 관리
AC/DC & DC/DC converters (integrated FET)

LM20323

활성

4.5~36V, 3A 전압 모드 동기 벅 레귤레이터

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TLVM13630 활성 고밀도, 3V~36V 입력, 1V~16V 출력, 3A 스텝다운 전원 모듈 Save board space, simplify design and speed time to market with an integrated-inductor power module.

LM20323

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 32 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0023
Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 32 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0023
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • 4.5V to 36V Input Voltage Range
  • 3A Output Current, 5.2A Peak Current
  • 130 mΩ/110 mΩ Integrated Power MOSFETs
  • 93% Peak Efficiency with Synchronous Rectification
  • 1.5% Feedback Voltage Accuracy
  • Current Mode Control, Selectable Compensation
  • Fixed 500 kHz Switching Frequency
  • Adjustable Output Voltage Down to 0.8V
  • Compatible with Pre-biased Loads
  • Programmable Soft-start with External Capacitor
  • Precision Enable Pin with Hysteresis
  • Integrated OVP, UVLO, PGOOD
  • Internally Protected with Peak Current Limit, Thermal Shutdown and Restart
  • Accurate Current Limit Minimizes Inductor Size
  • Non-linear Current Mode Slope Compensation
  • 20-Pin HTSSOP Exposed Pad Package

All trademarks are the property of their respective owners.

  • 4.5V to 36V Input Voltage Range
  • 3A Output Current, 5.2A Peak Current
  • 130 mΩ/110 mΩ Integrated Power MOSFETs
  • 93% Peak Efficiency with Synchronous Rectification
  • 1.5% Feedback Voltage Accuracy
  • Current Mode Control, Selectable Compensation
  • Fixed 500 kHz Switching Frequency
  • Adjustable Output Voltage Down to 0.8V
  • Compatible with Pre-biased Loads
  • Programmable Soft-start with External Capacitor
  • Precision Enable Pin with Hysteresis
  • Integrated OVP, UVLO, PGOOD
  • Internally Protected with Peak Current Limit, Thermal Shutdown and Restart
  • Accurate Current Limit Minimizes Inductor Size
  • Non-linear Current Mode Slope Compensation
  • 20-Pin HTSSOP Exposed Pad Package

All trademarks are the property of their respective owners.

The LM20323 is a full featured 500kHz synchronous buck regulator capable of delivering up to 3A of load current. The current mode control loop is externally compensated with only two components, offering both high performance and ease of use. The device is optimized to work over the input voltage range of 4.5V to 36V making it well suited for high voltage systems.

The device features internal Over Voltage Protection (OVP) and Over Current Protection (OCP) circuits for increased system reliability. A precision Enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Startup inrush currents are limited by both an internally fixed and externally adjustable soft-start circuit. Fault detection and supply sequencing are possible with the integrated power good (PGOOD) circuit.

The LM20323 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20323 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.

The LM20323 is offered in an exposed pad 20-pin HTSSOP package that can be soldered to the PCB, eliminating the need for bulky heatsinks.

The LM20323 is a full featured 500kHz synchronous buck regulator capable of delivering up to 3A of load current. The current mode control loop is externally compensated with only two components, offering both high performance and ease of use. The device is optimized to work over the input voltage range of 4.5V to 36V making it well suited for high voltage systems.

The device features internal Over Voltage Protection (OVP) and Over Current Protection (OCP) circuits for increased system reliability. A precision Enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Startup inrush currents are limited by both an internally fixed and externally adjustable soft-start circuit. Fault detection and supply sequencing are possible with the integrated power good (PGOOD) circuit.

The LM20323 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20323 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.

The LM20323 is offered in an exposed pad 20-pin HTSSOP package that can be soldered to the PCB, eliminating the need for bulky heatsinks.
open-in-new 기타 AC/DC & DC/DC converters (integrated FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR33630 활성 SIMPLE SWITCHER® 3.8V~36V, 3A 동기 벅 컨버터, 초저 EMI Next-generation 3.8-V to 36-V, 3-A synchronous buck converter with ultra-low EMI.

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기5
유형 직함 날짜
* Data sheet LM20323 36V, 3A 500 kHz Synchronous Buck Regulator datasheet (Rev. C) 2013/04/03
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
EVM User's guide AN-1790 LM20323 Evaluation Board (Rev. B) 2013/05/05
EVM User's guide AN-1792 LM20343 Evaluation Board (Rev. B) 2013/05/05
Application note AN-2077 LM20k POL Module (Rev. A) 2013/05/03

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

계산 툴

LM20323DESIGN-CALC — LM20323 계산기 스프레드시트

다운로드
레퍼런스 디자인

PMP10487 — 6V~18V 입력 동기 벅 0.5A LED 드라이버 레퍼런스 디자인

This LM20323 integrated FET sync-buck converter regulates the current in a white LED to 0.5A with minimum parts count. LED current is accurately measured with an INA193 and provides feedback to regulate the output current.
Test report: PDF
회로도: PDF
패키지 핀 다운로드
HTSSOP (PWP) 20 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

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

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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