전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS62227

활성

1.2V 출력, 400mA, 95% 효율 스텝 다운 컨버터, 15uA, ThinSOT-23

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS62A01 활성 2.5V~-5.5V 입력, 1A 출력 고효율 스텝다운 컨버터 Higher accuracy and smaller solution size in SOT563 package

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.4 Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 800 Switching frequency (max) (kHz) 1850 Features Enable, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Iq (typ) (µA) 15 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) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 800 Switching frequency (max) (kHz) 1850 Features Enable, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
SOT-23-THN (DDC) 5 8.12 mm² 2.9 x 2.8
  • High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range From 0.7 V to VI
  • Fixed Output Voltage Options Available
  • Up to 400-mA Output Current
  • 1.25-MHz Fixed Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range Due to Power-Save Mode
  • 15 µA Typical Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning
  • Available in TSOT23 Package
  • APPLICATIONS
    • PDAs and Pocket PC
    • Cellular Phones, Smart Phones
    • OMAP™ and Low Power DSP Supply
    • Digital Cameras
    • Portable Media Players
    • Portable Equipment
    • WLAN PC Cards

OMAP, TMS320 are trademarks of Texas Instruments.

  • High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range From 0.7 V to VI
  • Fixed Output Voltage Options Available
  • Up to 400-mA Output Current
  • 1.25-MHz Fixed Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range Due to Power-Save Mode
  • 15 µA Typical Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning
  • Available in TSOT23 Package
  • APPLICATIONS
    • PDAs and Pocket PC
    • Cellular Phones, Smart Phones
    • OMAP™ and Low Power DSP Supply
    • Digital Cameras
    • Portable Media Players
    • Portable Equipment
    • WLAN PC Cards

OMAP, TMS320 are trademarks of Texas Instruments.

The TPS6222x devices are a family of high-efficiency, synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an output voltage range of 6 V down to 0.7 V and up to 400-mA output current, the devices are ideal for powering the low voltage TMS320 DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 MHz. At light load currents, the part enters the power-save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, the device achieves the highest efficiency over the entire load current range. The TPS6222x needs only three small external components. Together with the tiny TSOT23 package, a minimum system solution size can be achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

The TPS6222x devices are a family of high-efficiency, synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an output voltage range of 6 V down to 0.7 V and up to 400-mA output current, the devices are ideal for powering the low voltage TMS320 DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 MHz. At light load currents, the part enters the power-save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, the device achieves the highest efficiency over the entire load current range. The TPS6222x needs only three small external components. Together with the tiny TSOT23 package, a minimum system solution size can be achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
11개 모두 보기
유형 직함 날짜
* Data sheet 400-mA, 1.25-MHz, High-Efficiency, Step-Down Converter in Thin-SOT23 datasheet (Rev. E) 2009/02/05
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
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017/11/29
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017/10/24
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017/06/15
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 2016/10/24
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
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 2012/01/13
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011/06/17

설계 및 개발

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

패키지 CAD 기호, 풋프린트 및 3D 모델
SOT-23-THN (DDC) 5 Ultra Librarian

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

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상