전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS61120

활성

1셀 리튬 이온 또는 듀얼 셀 애플리케이션용 200mA LDO를 지원하는 조정 가능, 95% 효율의 부스트 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS61023 활성 3.7A 부스트 컨버터(0.5V 초저전력 입력 전압) Not integrated LDO, smaller package and higher output current
TPS61098 활성 저입력 전압, 4.3V 출력 전압, 동기 부스트 컨버터 - LDO 통합 For applications requiring smaller package or smaller output current.
TPS610981 활성 저입력 전압, 3.3V 출력 전압, 동기 부스트 컨버터(LDO 통합) For applications requiring smaller package or smaller output current.
TPS610982 활성 저입력 전압, 4.3V 출력 전압, 동기 부스트 컨버터 - LDO 통합 For applications requiring smaller package or smaller output current.

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 600 Features Enable, Light Load Efficiency, Load Disconnect, Power good, Synchronous Rectification Vout (min) (V) 2.5 Vout (max) (V) 5.5 Iq (typ) (µA) 40 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 1.6
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 600 Features Enable, Light Load Efficiency, Load Disconnect, Power good, Synchronous Rectification Vout (min) (V) 2.5 Vout (max) (V) 5.5 Iq (typ) (µA) 40 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 1.6
TSSOP (PW) 16 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • Synchronous, 95% Efficient, Boost Converter With
    500-mA Output Current From 1.8-V Input
  • Integrated 200-mA Reverse Voltage Protected
    LDO for DC-DC Output Voltage Post Regulation
    or Second Output Voltage
  • 40-µA (Typical) Total Device Quiescent Current
  • Input Voltage Range: 1.8 V to 5.5 V
  • Fixed and Adjustable Output Voltage Options up
    to 5.5 V
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Power Good Output
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Available in a Small 4-mm × 4-mm VQFN-16 or in
    a TSSOP-16 Package
  • Synchronous, 95% Efficient, Boost Converter With
    500-mA Output Current From 1.8-V Input
  • Integrated 200-mA Reverse Voltage Protected
    LDO for DC-DC Output Voltage Post Regulation
    or Second Output Voltage
  • 40-µA (Typical) Total Device Quiescent Current
  • Input Voltage Range: 1.8 V to 5.5 V
  • Fixed and Adjustable Output Voltage Options up
    to 5.5 V
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Power Good Output
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Available in a Small 4-mm × 4-mm VQFN-16 or in
    a TSSOP-16 Package

The TPS6112x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer by either a one-cell Li-Ion or Li-Polymer battery, or a two- to four-cell Alkaline, NiCd, or NiMH battery. The devices can generate two stable output voltages that are either adjusted by an external resistor divider or are fixed internally on the chip. The device also provides a simple solution for generating 3.3 V out of a one-cell Li-Ion or Li-Polymer battery at a maximum output current of at least 200 mA with supply voltages down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. The maximum peak current in the boost switch is limited to a value of 1600 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters discontinuous conduction mode. A power good output at the boost stage simplifies control of any connected circuits like cascaded power supply stages or microprocessors.

The built-in LDO can be used for a second output voltage derived either from the boost output or directly from the battery. The LDO can be enabled separately that is, using the power good of the boost stage. The device is packaged in a 16-pin VQFN (RSA) package measuring 4 mm × 4 mm or in a 16-pin TSSOP (PW) package.

The TPS6112x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer by either a one-cell Li-Ion or Li-Polymer battery, or a two- to four-cell Alkaline, NiCd, or NiMH battery. The devices can generate two stable output voltages that are either adjusted by an external resistor divider or are fixed internally on the chip. The device also provides a simple solution for generating 3.3 V out of a one-cell Li-Ion or Li-Polymer battery at a maximum output current of at least 200 mA with supply voltages down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. The maximum peak current in the boost switch is limited to a value of 1600 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters discontinuous conduction mode. A power good output at the boost stage simplifies control of any connected circuits like cascaded power supply stages or microprocessors.

The built-in LDO can be used for a second output voltage derived either from the boost output or directly from the battery. The LDO can be enabled separately that is, using the power good of the boost stage. The device is packaged in a 16-pin VQFN (RSA) package measuring 4 mm × 4 mm or in a 16-pin TSSOP (PW) package.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
14개 모두 보기
유형 직함 날짜
* Data sheet TPS6112x Synchronous Boost Converter With 1.1-A Switch and Integrated LDO datasheet (Rev. D) PDF | HTML 2015/05/28
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 LDO Noise Demystified (Rev. B) PDF | HTML 2020/08/18
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018/12/11
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017/11/29
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017/08/09
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017/06/15
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
EVM User's guide TPS6112xEVM-205, For Dual Output, Single-Cell Boost Converter User's Guide (Rev. A) 2008/06/02
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

TPS61120EVM-205 — TPS61120 평가 모듈

The TPS61120EVM-205 is an evaluation tool for the TPS61120 inductive boost converter with LDO in 4x4mm2 QFN. The boost stage can supply voltages up to 5.5V from input voltages in the range of 1.8V to 5.5V. The LDO stage can supply voltages down to 0.9V from input voltages in the range of 1.5V to (...)

사용 설명서: PDF
TI.com에서 구매 불가
패키지 CAD 기호, 풋프린트 및 3D 모델
TSSOP (PW) 16 Ultra Librarian
VQFN (RSA) 16 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

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