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

TPS61021A

활성

3A 부스트 컨버터(0.5V 초저전력 입력 전압)

지금 주문
데이터시트

TPS61021A

활성
데이터시트 지금 주문

제품 상세 정보

Vin (min) (V) 0.5 Vin (max) (V) 4.4 Topology Boost Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2000 Features Bypass Mode Pass-through Mode, Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification Vout (min) (V) 1.8 Vout (max) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000017
Vin (min) (V) 0.5 Vin (max) (V) 4.4 Topology Boost Type Converter Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2000 Features Bypass Mode Pass-through Mode, Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification Vout (min) (V) 1.8 Vout (max) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000017
WSON (DSG) 8 4 mm² 2 x 2
  • Input Voltage Range: 0.5 V to 4.4 V
  • 0.9 V Minimum Input Voltage for Startup
  • Output Voltage Setting Range: 1.8 V to 4.0 V
  • 91% Efficiency at VIN = 2.4 V, VOUT = 3.3 V and
    IOUT = 1.5 A
  • 2.0-MHz Switching Frequency
  • IOUT > 1.5 A at VOUT = 3.3 V when VIN > 1.8 V
  • 17-µA Typical Quiescent Current
  • ±2.5% Reference Voltage Accuracy over –40°C to
    125°C
  • PFM Operation Mode at Light Load
  • True Disconnection Between Input and Output
    During Shutdown
  • Output Over Voltage Protection
  • Output Short Circuit Protection
  • Thermal Shutdown Protection
  • 2-mm × 2-mm WSON Package
  • Input Voltage Range: 0.5 V to 4.4 V
  • 0.9 V Minimum Input Voltage for Startup
  • Output Voltage Setting Range: 1.8 V to 4.0 V
  • 91% Efficiency at VIN = 2.4 V, VOUT = 3.3 V and
    IOUT = 1.5 A
  • 2.0-MHz Switching Frequency
  • IOUT > 1.5 A at VOUT = 3.3 V when VIN > 1.8 V
  • 17-µA Typical Quiescent Current
  • ±2.5% Reference Voltage Accuracy over –40°C to
    125°C
  • PFM Operation Mode at Light Load
  • True Disconnection Between Input and Output
    During Shutdown
  • Output Over Voltage Protection
  • Output Short Circuit Protection
  • Thermal Shutdown Protection
  • 2-mm × 2-mm WSON Package

The TPS61021A provides a power supply solution for portable or smart devices powered by alkaline, NiMH, Li-Mn, or Li-ion batteries. The TPS61021A is capable of outputting 3.3-V voltage and 1.5-A current from a battery discharged to as low as 1.8 V. Capable of operating with 0.5-V input voltage enables the TPS61021A to extend the battery run time.

The TPS61021A operates at 2-MHz switching frequency at heavy load and enters power-save mode at light load to maintain high efficiency over the entire load current range. The device only consumes a 17-µA quiescent current from VOUT in light load condition. During shutdown, the load is completely disconnected from the input. In addition, The TPS61021A provides 4.35-V output overvoltage protection, output short circuit protection, and thermal shutdown protection.

The TPS61021A offers a very small solution size due to low count of external components. It allows the use of small inductors and output capacitors with the 2-MHz switching frequency.

The TPS61021A is available in 2.0-mm × 2.0-mm WSON package.

The TPS61021A provides a power supply solution for portable or smart devices powered by alkaline, NiMH, Li-Mn, or Li-ion batteries. The TPS61021A is capable of outputting 3.3-V voltage and 1.5-A current from a battery discharged to as low as 1.8 V. Capable of operating with 0.5-V input voltage enables the TPS61021A to extend the battery run time.

The TPS61021A operates at 2-MHz switching frequency at heavy load and enters power-save mode at light load to maintain high efficiency over the entire load current range. The device only consumes a 17-µA quiescent current from VOUT in light load condition. During shutdown, the load is completely disconnected from the input. In addition, The TPS61021A provides 4.35-V output overvoltage protection, output short circuit protection, and thermal shutdown protection.

The TPS61021A offers a very small solution size due to low count of external components. It allows the use of small inductors and output capacitors with the 2-MHz switching frequency.

The TPS61021A is available in 2.0-mm × 2.0-mm WSON package.
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기술 문서

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모두 보기13
유형 직함 날짜
* Data sheet TPS61021A 3-A Boost Converter with 0.5-V Ultra Low Input Voltage datasheet PDF | HTML 2016/06/01
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023/12/06
Application note 스트컨버터의 전력계 기본 계산 (Rev. D) PDF | HTML 2022/11/21
Application note Measuring and Understanding the Output Voltage Ripple of a Boost Converter PDF | HTML 2021/02/22
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
Technical article How energy harvesting can extend the life of your fault indicator on the grid PDF | HTML 2017/10/18
Application note Single LED Driver in AA Battery-Powered Systems 2017/08/25
Application note Feedforward Capacitor Makes Boost Converter Fast and Stable 2016/11/02
User guide TPS61021A-PWR723 Evaluation Module (Rev. A) 2016/06/16
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012/04/26
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
Application note Minimizing Ringing at the Switch Node of a Boost Converter 2006/09/15

설계 및 개발

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

평가 보드

TPS61021EVM-723 — TPS61021A용 부스트 컨버터 평가 모듈

The TPS61021A provides a power supply solution for portable devices and IoT devices powered by alkaline battery or LiMn battery. The TPS61021A supports up to 1.5A load current from a battery discharged as low as 1.8V. The TPS61021A operates at a regulated 2.0-MHz switching frequency and enters (...)
사용 설명서: PDF
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시뮬레이션 모델

TPS61021A Unencrypted PSpice Transient Model Package (Rev. B)

SLVMBI5B.ZIP (97 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-00998 — 오버헤드 고장 표시기용 에너지 하베스팅 및 고장 표시기 서브시스템 레퍼런스 디자인

This reference design shows multiple architectures for extending primary battery life using a secondary battery or supercapacitor with energy harvested from a current transformer (CT) or solar cells. Optimal power management is done using efficient LED drivers to drive series or parallel (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01385 — 고장 표시기를 위한 슈퍼 커패시터를 사용한 전류 변압기의 에너지 하베스팅 레퍼런스 디자인

Power management for the energy harvesting, energy buffering and back-up power is a key challenge in the fault indicator design. The TIDA-01385 introduces a circuit about harvesting energy from a current transformer for the system load of a fault indicator while storing the extra energy in a super (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01574 — 전력 도용 온도 조절기용 전력계 레퍼런스 설계

TIDA-01574 is a reference design for high-efficiency power stealing for smart thermostats and other building automation equipment. In general, power stealing enables to extend battery life of Wi-Fi enabled smart thermostats by drawing power from 24-V AC when the HVAC load is off. This (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP15037 — 1~2셀 AA 배터리 애플리케이션용 고휘도 단일 LED 드라이버 레퍼런스 설계

This reference design delivers a high efficiency LED driver circuit with dimming function using the boost converter TPS61021A. The PWM dimming method can be used in one or two cell AA battery input applications, and the analog dimming method can be used in one cell AA battery input applications. (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP21055 — 0.8V-4.2Vin ~ 3.3V@100mA 부스트+벅 레퍼런스 디자인

The PMP21055 reference design converts a 0.8V to 4.2V input to a 3.3V/100mA output in a small form factor measuring 12mmx8mm. The design is built on a 2 layer, 1oz board and is a low-cost, small size design intended for battery powered applications. 
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-01387 — LiSoCL2 배터리를 사용하는 GPRS 모뎀용 전원 공급 장치 레퍼런스 디자인

This design demonstrates how to power GPRS modems in smart meters using LiSoCL2 batteries. GPRS modems require peak current of up to 2A during transmission. This design reduces the peak load requirements on the battery by using the TPS61021A boost converter and a 20F super capacitor to provide the (...)
Design guide: PDF
회로도: PDF
패키지 핀 다운로드
WSON (DSG) 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
포함된 정보:
  • 팹 위치
  • 조립 위치

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