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

LM5166

활성

초저 Iq를 지원하는 3V~65V 입력, 500mA 동기 벅 컨버터

지금 주문
데이터 시트

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 Smaller footprint, lower IQ and lower EMI.
TPSM365R6 활성 3V~65V 입력, 1V~13V 출력, 0.6A 동기식 벅 컨버터 전원 모듈 Smaller design with an integrated-inductor power module.

LM5166

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 3 Vin (max) (V) 65 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Adjustable current limit, Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.23 Vout (max) (V) 65 Iq (typ) (µA) 10 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 3 Vin (max) (V) 65 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 600 Features Adjustable current limit, Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.23 Vout (max) (V) 65 Iq (typ) (µA) 10 Duty cycle (max) (%) 100
VSON (DRC) 10 9 mm² 3 x 3
  • Wide Input Voltage Range of 3 V to 65 V
  • 9.7-µA No-Load Quiescent Current
  • –40°C to 150°C Junction Temperature Range
  • Fixed (3.3-V, 5-V) or Adjustable VOUT Options
  • Meets EN55022 / CISPR 22 EMI Standards
  • Integrated 1-Ω PFET Buck Switch
    • Supports 100% Duty Cycle for Low Dropout
  • Integrated 0.5-Ω NFET Synchronous Rectifier
    • Eliminates External Schottky Diode
  • Programmable Peak Current Limit Supports:
    • 500-mA, 300-mA, or 200-mA Loads
  • Selectable PFM or COT Mode Operation
  • 1.223-V ±1.2% Internal Voltage Reference
  • Switching Frequency up to 600 kHz
  • 900-µs Internal or Externally-Adjustable Soft Start
  • Diode Emulation and Pulse Skipping for Ultra-High Light-Load Efficiency
  • No Loop Compensation or Bootstrap Components
  • Precision Enable and Input UVLO With Hysteresis
  • Open-Drain Power Good Indicator
  • Thermal Shutdown Protection With Hysteresis
  • Pin-to-Pin Compatible With the LM5165
  • 10-Pin, 3-mm × 3-mm VSON Package
  • Create a Custom Regulator Design Using WEBENCH® Power Designer
  • Wide Input Voltage Range of 3 V to 65 V
  • 9.7-µA No-Load Quiescent Current
  • –40°C to 150°C Junction Temperature Range
  • Fixed (3.3-V, 5-V) or Adjustable VOUT Options
  • Meets EN55022 / CISPR 22 EMI Standards
  • Integrated 1-Ω PFET Buck Switch
    • Supports 100% Duty Cycle for Low Dropout
  • Integrated 0.5-Ω NFET Synchronous Rectifier
    • Eliminates External Schottky Diode
  • Programmable Peak Current Limit Supports:
    • 500-mA, 300-mA, or 200-mA Loads
  • Selectable PFM or COT Mode Operation
  • 1.223-V ±1.2% Internal Voltage Reference
  • Switching Frequency up to 600 kHz
  • 900-µs Internal or Externally-Adjustable Soft Start
  • Diode Emulation and Pulse Skipping for Ultra-High Light-Load Efficiency
  • No Loop Compensation or Bootstrap Components
  • Precision Enable and Input UVLO With Hysteresis
  • Open-Drain Power Good Indicator
  • Thermal Shutdown Protection With Hysteresis
  • Pin-to-Pin Compatible With the LM5165
  • 10-Pin, 3-mm × 3-mm VSON Package
  • Create a Custom Regulator Design Using WEBENCH® Power Designer

The LM5166 is a compact, easy-to-use, 3-V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 500 mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V, or an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for the target application. Pulse frequency modulation (PFM) mode is selected for optimal light-load efficiency or constant on-time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios.

The high-side P-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular load current requirement. Selectable and adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start using a capacitor. An open-drain PGOOD indicator can be used for sequencing, fault reporting, and output voltage monitoring. The LM5166 is available in a 10-pin VSON package with 0.5-mm pin pitch.

The LM5166 is a compact, easy-to-use, 3-V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 500 mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V, or an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for the target application. Pulse frequency modulation (PFM) mode is selected for optimal light-load efficiency or constant on-time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios.

The high-side P-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular load current requirement. Selectable and adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start using a capacitor. An open-drain PGOOD indicator can be used for sequencing, fault reporting, and output voltage monitoring. The LM5166 is available in a 10-pin VSON package with 0.5-mm pin pitch.
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기술 자료

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14개 모두 보기
유형 직함 날짜
* Data sheet LM5166 3-V to 65-V Input, 500-mA Synchronous Buck Converter With Ultra-Low IQ datasheet (Rev. B) PDF | HTML 2017/06/01
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
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
Application brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 2019/02/05
Application note Selecting an Ideal Ripple Generation Network for Your COT Buck Converter (Rev. A) 2017/06/15
Technical article The power to innovate industrial design PDF | HTML 2017/03/27
EVM User's guide LM5166EVM-C50A Evaluation Module 2016/12/08
EVM User's guide LM5166EVM-C33A Evaluation Module 2016/12/07
Technical article Trends in building automation: predictive maintenance PDF | HTML 2016/11/01
Analog Design Journal Low-EMI buck powers a multivariable sensor transmitter with BLE connectivity 2016/10/24
Technical article Powering smart sensor transmitters in industrial applications PDF | HTML 2016/05/02
Technical article DC/DC converter datasheets - Quiescent current demystified: Part two PDF | HTML 2016/04/11
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014/01/22

설계 및 개발

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

평가 보드

LM5166EVM-C33A — LM5166 넓은 VIN, 낮은 IQ, COT 3.3V 500mA 평가 모듈

The LM5166EVM-C33A evaluation module (EVM) is designed to showcase the performance and all features of the LM5166, wide-VIN, synchronous buck DC/DC buck converter with ultra-low no-load supply current. The design is packaged in a miniature footprint with low component count. It operates over a (...)
사용 설명서: PDF
TI.com에서 구매 불가
평가 보드

LM5166EVM-C50A — LM5166 넓은 VIN, 낮은 IQ, COT 5V 500mA 평가 모듈

The LM5166EVM evaluation module (EVM) is designed to showcase the performance and all features of the LM5166, wide-VIN, synchronous buck DC/DC buck converter with ultra-low no-load supply current. The design is packaged in a miniature footprint with low component count. It operates over a wide (...)
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5166 PSpice Transient Model (Rev. B)

SNVMAV8B.ZIP (104 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5166 Unencrypted PSpice Transient Model (Rev. B)

SNVMAV7B.ZIP (5 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5166X PSpice Transient Model (Rev. B)

SNVMAZ3B.ZIP (130 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5166X Unencrypted PSpice Transient Model (Rev. B)

SNVMAZ2B.ZIP (5 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5166Y PSpice Transient Model (Rev. B)

SNVMAZ1B.ZIP (124 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5166Y Unencrypted PSpice Transient Model (Rev. B)

SNVMAZ0B.ZIP (5 KB) - PSpice Model
다운로드
계산 툴

LM5166DESIGN-CALC — LM5166 DC/DC 컨버터 설계 툴

LM5166 빠른 시작 설계 툴에 오신 것을 환영합니다. 이 독립형 툴은 LM5166 저 IQ 동기식 벅 DC/DC 레귤레이터에 기반한 DC/DC 벅 컨버터 설계를 통해 전원 공급 장치 엔지니어를 용이하게 하고 지원합니다. 따라서 사용자는 애플리케이션 요구 사항을 충족하기 위해 최적화된 설계에 신속하게 도착할 수 있습니다.
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레퍼런스 디자인

TIDA-01395 — 스마트 온도 조절기용 넓은 Vin 컨버터 및 배터리 게이지를 지원하는 24V AC 전력계 레퍼런스 디자인

This reference design provides a low BOM count, high-efficiency power stage for smart thermostats and other gateway building automation designs. This power stage takes a 24-V AC input and produces a 5-V and 3.3-V output rail, which can power additional point-of-load converters if added. The (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01437 — IO-Link 인터페이스를 갖춘 RGB 신호 조명 레퍼런스 디자인

This reference design implements a five-segment LED smart stack light with 20 LEDs used in factory floor and industrial process automation of greater complexity. An IO-Link interface is implemented for controlling the stack light and reading back status information. The design features low power (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01487 — 절연 CAN FD(유연한 데이터) 속도 리피터 레퍼런스 디자인

CAN and CANopen are legacy Fieldbus protocols used in many applications in factory automation. Whenever high voltage can damage the end equipment, there is need for isolation. This isolated CAN flexible data (FD) rate repeater reference design adds electrical isolation between two CAN (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01386 — IO-link를 갖춘 초음파 거리 센서 레퍼런스 디자인

This reference design features an ultrasonic distance sensor that fits in a M12 housing due to its high integration and an optimized layout. The design offers an IO-Link interface to communicate with the system control, which makes it industry 4.0 ready.  The purpose of ultrasonic (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-010055 — 보호 릴레이 모듈을 위한 진단 기능이 포함된 비절연 전원 아키텍처 레퍼런스 설계

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-010049 — IEC 61508(SIL-2)용 TUV 평가 디지털 입력 레퍼런스 설계

This 8-channel, group-isolated, digital input module reference design, focuses on applications with the need for industrial functional safety. This design has diagnostics implemented to help detect both permanent and transient random hardware faults. The concept of this input module has been (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIPD215 — 적응형 전원 관리 기능을 갖춘 1W 미만, 쿼드 채널, 아날로그 출력 모듈 레퍼런스 디자인

This quad-channel, analog output module delivers voltage and current outputs using the highly integrated DAC8775 digital-to-analog converter (DAC). Integrated adaptive power management, along with the LM5166 buck converter, reduces the total power dissipation of the reference design to less than 1 (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01358 — 스마트 온도 조절기용 24V AC 광범위 입력 전압 컨버터 및 배터리 백업 레퍼런스 설계

The TIDA-01358 reference design provides a low BOM cost, high efficiency power stage solution for smart thermostats and other gateway building automation end equipment. This power stage takes a 24Vac input and produces a 5V and 3.3V output rail which can power additional point-of-load converters (...)
Design guide: PDF
회로도: PDF
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VSON (DRC) 10 Ultra Librarian
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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

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