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

TPS62740

활성

2.2V~5.5V 입력, 초저전력 300mA 스텝다운 벅 DCDC 컨버터(360nA IQ 지원)

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS62840 활성 60nA 정동작 전류(IQ), 1.8V~6.5VIN, 고효율 750mA 스텝다운 컨버터 Higher output current, lower IQ and additional features.

TPS62740

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 0.3 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Adaptive/Dynamic Voltage Scaling, Enable, Light Load Efficiency, Light load efficiency, Output discharge, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 1.8 Vout (max) (V) 3.3 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0000003
Iout (max) (A) 0.3 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Topology Buck Type Converter Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Adaptive/Dynamic Voltage Scaling, Enable, Light Load Efficiency, Light load efficiency, Output discharge, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 1.8 Vout (max) (V) 3.3 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0000003
WSON (DSS) 12 6 mm² 3 x 2
  • Input Voltage Range VIN from 2.2V to 5.5
  • Typ. 360nA Quiescent Current
  • Up to 90% Efficiency at 10µA Output Current
  • Up to 300mA / 400mA Output Current (TPS62740/TPS62742)
  • RF Friendly DCS-Control™
  • Up to 2 MHz Switching Frequency
  • Low Output Ripple Voltage
  • 16 Selectable Output Voltages in 100mV Steps between
    1.8V to 3.3V
  • Automatic Transition to No Ripple 100% Mode
  • Slew Rate Controlled Load Switch
  • Discharge Function on VOUT / LOAD
  • Power Good Output
  • Optimized for Operation with a Tiny 2.2µH Inductor
    and 10µF COUT
  • Total Solution Size <31mm2
  • Small 2 × 3 mm2 WSON Package
  • Input Voltage Range VIN from 2.2V to 5.5
  • Typ. 360nA Quiescent Current
  • Up to 90% Efficiency at 10µA Output Current
  • Up to 300mA / 400mA Output Current (TPS62740/TPS62742)
  • RF Friendly DCS-Control™
  • Up to 2 MHz Switching Frequency
  • Low Output Ripple Voltage
  • 16 Selectable Output Voltages in 100mV Steps between
    1.8V to 3.3V
  • Automatic Transition to No Ripple 100% Mode
  • Slew Rate Controlled Load Switch
  • Discharge Function on VOUT / LOAD
  • Power Good Output
  • Optimized for Operation with a Tiny 2.2µH Inductor
    and 10µF COUT
  • Total Solution Size <31mm2
  • Small 2 × 3 mm2 WSON Package

The TPS6274x is industry’s first step down converter featuring typ. 360nA quiescent current and operating with a tiny 2.2µH inductor and 10µF output capacitor. This new DCS-Control™ based device extends the light load efficiency range below 10µA load currents. TPS62740 supports output currents up to 300mA, TPS62742 up to 400mA. The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5V allows also operation from a USB port and thin-film solar modules. The output voltage is user selectable by four VSEL pins within a range from 1.8V to 3.3V in 100mV steps. TPS6274x features low output ripple voltage and low noise with a small output capacitor. Once the battery voltage comes close to the output voltage (close to 100% duty cycle) the device enters no ripple 100% mode operation to prevent an increase of output ripple voltage. The device then stops switching and the output is connected to the input voltage. The integrated slew rate controlled load switch provides typ. 0.6Ω on-resistance and can distribute the selected output voltage to a temporarily used sub-system. The TPS6274x is available in a small 12 pin 2 × 3mm2 WSON package and supports a total solutions size of 31mm2.

The TPS6274x is industry’s first step down converter featuring typ. 360nA quiescent current and operating with a tiny 2.2µH inductor and 10µF output capacitor. This new DCS-Control™ based device extends the light load efficiency range below 10µA load currents. TPS62740 supports output currents up to 300mA, TPS62742 up to 400mA. The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5V allows also operation from a USB port and thin-film solar modules. The output voltage is user selectable by four VSEL pins within a range from 1.8V to 3.3V in 100mV steps. TPS6274x features low output ripple voltage and low noise with a small output capacitor. Once the battery voltage comes close to the output voltage (close to 100% duty cycle) the device enters no ripple 100% mode operation to prevent an increase of output ripple voltage. The device then stops switching and the output is connected to the input voltage. The integrated slew rate controlled load switch provides typ. 0.6Ω on-resistance and can distribute the selected output voltage to a temporarily used sub-system. The TPS6274x is available in a small 12 pin 2 × 3mm2 WSON package and supports a total solutions size of 31mm2.
open-in-new 기타 AC/DC & DC/DC converters (integrated FET) 찾기
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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS82740A 활성 200mA 스텝다운 컨버터 모듈(360nA IQ) For smaller BOM size and ease-of-use check out the module alternative.
TPS82740B 활성 200mA 스텝다운 컨버터 모듈(360nA IQ) For smaller BOM size and ease-of-use check out the module alternative.

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기27
유형 직함 날짜
* Data sheet TPS6274x 360nA IQ Step Down Converter For Low Power Applications datasheet (Rev. B) PDF | HTML 2014/07/10
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/05/23
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
White paper Extending Battery Life in Smart E-Locks (Rev. A) 2020/06/04
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 2019/10/14
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 2019/06/14
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
Technical article How energy harvesting can extend the life of your fault indicator on the grid PDF | HTML 2017/10/18
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
Technical article Find your pot of gold—no luck required! PDF | HTML 2016/03/14
Application note Efficient Super-Capacitor Charging with TPS62740 2015/12/15
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 2015/10/30
Technical article Achieve longer battery lifetimes from wireless sensors PDF | HTML 2015/10/22
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
White paper Complete Wireless M-Bus Solution (Rev. B) 2014/11/05
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014/01/22
EVM User's guide TPS62740 EVM User's Guide 2013/11/11
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

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평가 보드

CDCI6214EVM — CDCI6214 초저전력 클록 제너레이터 평가 모듈

I2C 버스에 액세스하여 CDCI6214와 제어 핀 및 전원 공급 장치와 통신할 수 있습니다. 에지-런치 SMA-커넥터는 50Ω를 사용하여 측정할 수 있으며, 온보드 종단 기능을 사용하면 고임피던스 프로브를 사용할 수 있습니다. 유연한 재작업 옵션을 사용하면 평가 모듈을 여러 애플리케이션별 요구 사항에 맞게 신속하게 프로토타이핑할 수 있습니다.
사용 설명서: PDF
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평가 보드

EVM430-FR6043 — MSP430FR6043 초음파 센서 평가 모듈

The EVM430-FR6043 evaluation kit is a development platform that can be used to evaluate the performance of the MSP430FR6043 for ultrasonic sensing applications (e.g. Smart Gas Meters). The MSP430FR6043 MCU is an ultra-low-power MCU that integrates an ultrasonic sensing analog front end (USS) for (...)
사용 설명서: PDF
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평가 보드

TPS62740EVM-186 — TPS62740EVM-186 초저 Iq 스텝다운 컨버터 저전력 무선 애플리케이션 평가 모듈

The TPS62740EVM-186 is designed to help the user easily evaluate and test the operation and functionality of the TPS62740. The EVM converts a 2.2-V to 5.5-V input voltage to a regulated output voltage that is set between 1.8 V and 3.3 V at up to 300 mA. The TPS62740 also includes an integrated load (...)

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

TPS62740 PSpice Unencrypted Transient Model (Rev. A)

SLVM983A.ZIP (123 KB) - PSpice Model
다운로드
거버(Gerber) 파일

TPS62740EVM-186 Gerber

SLVC544.ZIP (337 KB)
다운로드

많은 TI 레퍼런스 설계에는 TPS62740이(가) 포함됩니다.

레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.

레퍼런스 설계 보기
패키지 핀 다운로드
WSON (DSS) 12 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

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