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

TPS62840

활성

60nA 정동작 전류(IQ), 1.8V~6.5VIN, 고효율 750mA 스텝다운 컨버터

지금 주문
데이터시트

TPS62840

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 0.75 Vin (min) (V) 1.8 Vin (max) (V) 6.5 Topology Buck Type Converter Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 1800 Features Enable, Fixed Output, Forced PWM, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode DCS-Control Vout (min) (V) 0.8, 1.8, 3.4 Vout (max) (V) 1.55, 3.3, 3.4, 3.6 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00000006
Iout (max) (A) 0.75 Vin (min) (V) 1.8 Vin (max) (V) 6.5 Topology Buck Type Converter Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 1800 Features Enable, Fixed Output, Forced PWM, Light Load Efficiency, Light load efficiency, Output discharge, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed, UVLO fixed Control mode DCS-Control Vout (min) (V) 0.8, 1.8, 3.4 Vout (max) (V) 1.55, 3.3, 3.4, 3.6 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00000006
DSBGA (YBG) 6 1.4136 mm² 0.95 x 1.488 HVSSOP (DGR) 8 9 mm² 3 x 3 VSON-HR (DLC) 8 3 mm² 2 x 1.5
  • 60-nA operating quiescent current
  • 100% duty-cycle mode with 120-nA IQ
  • Input voltage range VIN from 1.8 V to 6.5 V
  • Output current up to 750 mA
  • RF friendly DCS-Control™
  • 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
  • 16 selectable output voltages via VSET pin
  • Auto transition PFM/PWM or forced-PWM mode
  • Selectable forced PWM and STOP modes
  • Output discharge function
  • 25-nA shutdown current
  • SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages
  • 60-nA operating quiescent current
  • 100% duty-cycle mode with 120-nA IQ
  • Input voltage range VIN from 1.8 V to 6.5 V
  • Output current up to 750 mA
  • RF friendly DCS-Control™
  • 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
  • 16 selectable output voltages via VSET pin
  • Auto transition PFM/PWM or forced-PWM mode
  • Selectable forced PWM and STOP modes
  • Output discharge function
  • 25-nA shutdown current
  • SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages

The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.

The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.

16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.

The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.

The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2.

The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.

The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.

16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.

The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.

The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2.
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신규 TPS62843 활성 1.8V~5.5V 입력, 600mA 초저 IQ 스텝다운 컨버터 Low IQ 275-nA DC/DC converter with compact solution size of 5.7 mm2

기술 문서

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모두 보기30
유형 직함 날짜
* Data sheet TPS62840 1.8-V to 6.5-V, 750-mA, 60-nA IQ Step-Down Converter datasheet (Rev. D) PDF | HTML 2020/04/27
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
White paper 저전력 애플리케이션의 저 IQ 문제점 극복 (Rev. B) PDF | HTML 2023/04/19
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/05/23
Technical article 3 quiescent-current (Iq) specifications you need to understand PDF | HTML 2021/11/12
Application note High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision (Rev. A) 2021/07/30
EVM User's guide TPS62841-2EVM123 EVM User's Guide (Rev. A) PDF | HTML 2021/06/03
Application note Extend Battery Life with <100 nA IQ Buck Converter Achieving <150 µV Voltage Rip (Rev. A) PDF | HTML 2021/05/07
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
Technical article Advantages of the STOP function for low-noise data-acquisition applications PDF | HTML 2020/03/31
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 2019/10/14
EVM User's guide TPS62842EVM-103 User's Guide 2019/08/28
Technical article Deciphering low Iq: Using WEBENCH® to design near 100% duty-cycle for ultra-low po PDF | HTML 2019/07/15
Technical article Do all rails need low Iq? PDF | HTML 2019/07/15
EVM User's guide TPS62840-1YBGEVM56 User's Guide 2019/05/24
EVM User's guide TPS62840-1DLCEVM55 User's Guide 2019/05/15
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018/06/22
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
Technical article Never lose your luggage again with a smart tracker design PDF | HTML 2017/10/20
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 2015/10/30
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 2015/08/17
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015/01/29
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014/01/22
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 2013/07/25
Application note How to Measure the Control Loop of DCS-Control Devices (Rev. A) 2012/08/09
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/01/13
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 2011/09/19
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011/06/17

설계 및 개발

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평가 보드

TPS62840-1DLCEVM55 — 60nA IQ, QFN 패키지, 고효율 750mA 스텝다운 컨버터 평가 모듈(회로 2개)

The TPS62840-1DLCEVM55 evaluation module (EVM) facilitates the evaluation of the TPS6284XDLC family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 2.0-mm QFN packages. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from higher input voltages (...)

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
평가 보드

TPS62840-1YBGEVM56 — 60-nA IQ, WCSP 패키지, 고효율 750mA 스텝다운 컨버터 평가 모듈(2회로)

The TPS62840-1YBGEVM056 evaluation module (EVM) facilitates the evaluation of the TPS6284XYBG family of 750-mA step-down converters with 60-nA IQ in small 1.5-mm by 1-mm WCSP packages with 0.4-mm pitch. The EVM contains 2 separate circuits to create output voltages between 0.8 V and 3.3 V from (...)

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
평가 보드

TPS62841-2EVM123 — TPS62841 및 TPS62842 60nA IQ, DGR 패키지, 750mA 벅 컨버터 평가 모듈(2회로)

The TPS62841-2EVM123 evaluation module (EVM) facilitates the evaluation of the TPS6284XDGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains two separate circuits to create output voltages between 0.8 V and 3.6 V from higher input voltages (...)

사용 설명서: PDF | HTML
TI.com에서 구매할 수 없습니다
평가 보드

TPS62842EVM-103 — 60nA IQ, DGR 패키지, 고효율 750mA 스텝다운 컨버터 평가 모듈

The TPS62842EVM-103 evaluation module (EVM) facilitates the evaluation of the TPS62842DGR 750-mA step-down converter with 60-nA IQ in a high thermal performance HVSSOP package. The EVM contains a circuit to convert output voltages between 1.8 V and 3.6 V from higher input voltages between 1.8 V and (...)

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

TPS62840 PSpice Unencrypted Transient Model (Rev. C)

SLUM691C.ZIP (83 KB) - PSpice Model
다운로드
시뮬레이션 모델

TPS62841 PSPICE Model

SLVMD75.ZIP (98 KB) - PSpice Model
다운로드
시뮬레이션 모델

TPS62842 PSpice Transient Model

SLVMD74.ZIP (92 KB) - PSpice Model
다운로드
거버(Gerber) 파일

BSR055 Gerbers

SLVC773.ZIP (452 KB)
다운로드
거버(Gerber) 파일

BSR056 Gerbers

SLVC774.ZIP (445 KB)
다운로드
레퍼런스 디자인

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Wi-Fi® 연결 디바이스가 포함된 프로세서를 사용하면 안전한 고품질 라이브 비디오 스트리밍 및 양방향 오디오 스트리밍으로 잡음 감소 및 음향 반향 제거 기능을 구현할 수 있습니다. 이 설계에는 나이트 비전 기능을 지원하는 적외선(IR) LED 및 IR 차단 필터가 포함되어 있습니다.
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-010072 — 호흡기 애플리케이션을 위한 송풍기 및 밸브 제어 레퍼런스 설계

This reference design provides a compact system design capable of supporting motor acceleration and deceleration up to ±200 kRPM/s, which is a key requirement in many respirator applications. The design supports a number of offboard C2000 controllers including (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-010053 — 주 전지를 사용하는 스마트 계량기 무선 모듈을 위한 저전력 옵션 레퍼런스 설계

This reference design showcases three different power architectures for smart flow meters with lithium manganese dioxide (LiMnO2) primary batteries and commercial off-the-shelf narrowband modules for Internet of Things (IoT)-related applications. The three power solutions are combined with the (...)
Design guide: PDF
회로도: PDF
패키지 핀 다운로드
DSBGA (YBG) 6 옵션 보기
HVSSOP (DGR) 8 옵션 보기
VSON-HR (DLC) 8 옵션 보기
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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
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  • 조립 위치

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