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

TPS62742

활성

400mA 및 통합 부하 스위치를 지원하는 3V-5.5V 입력, 360nA Iq 스텝다운 컨버터

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS62840 활성 60nA 정동작 전류(IQ), 1.8V~6.5VIN, 고효율 750mA 스텝다운 컨버터 Ultra-low IQ of 60-nA and higher output current up to 750-mA available
TPS62843 활성 1.8V~5.5V 입력, 600mA 초저 IQ 스텝다운 컨버터 Smaller solution size for 275-nA IQ and 0.4-V to 3.6-V VOUT

TPS62742

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.4 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Adaptive/Dynamic Voltage Scaling, Light load efficiency, Output discharge, Power good, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 1.8 Vout (max) (V) 3.3 Iq (typ) (µA) 0.3 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.4 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Adaptive/Dynamic Voltage Scaling, Light load efficiency, Output discharge, Power good, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 1.8 Vout (max) (V) 3.3 Iq (typ) (µA) 0.3 Duty cycle (max) (%) 100
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.
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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10개 모두 보기
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 Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/05/23
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
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
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
Analog Design Journal Five steps to a great PCB layout for a step-down converter 2015/01/29

설계 및 개발

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

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 구매 불가
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
WSON (DSS) 12 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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