전원 관리 선형 및 저손실(LDO) 레귤레이터

TPS7A25

활성

전원 양호 기능을 지원하는 300mA, 18V, 초저 IQ, 고정밀, 조정 가능한 저손실 전압 레귤레이터

제품 상세 정보

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 18 Vin (min) (V) 2.4 Vout (max) (V) 17.64 Vout (min) (V) 1.24 Fixed output options (V) 1.25, 1.8, 2.5, 3.3, 5, 17.64 Rating Catalog Noise (µVrms) 300 PSRR at 100 KHz (dB) 22 Iq (typ) (mA) 0.002 Thermal resistance θJA (°C/W) 73.3 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 210 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.3 Vin (max) (V) 18 Vin (min) (V) 2.4 Vout (max) (V) 17.64 Vout (min) (V) 1.24 Fixed output options (V) 1.25, 1.8, 2.5, 3.3, 5, 17.64 Rating Catalog Noise (µVrms) 300 PSRR at 100 KHz (dB) 22 Iq (typ) (mA) 0.002 Thermal resistance θJA (°C/W) 73.3 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 210 Operating temperature range (°C) -40 to 125
WSON (DRV) 6 4 mm² 2 x 2
  • Ultra-low IQ: 2 µA
  • Input voltage: 2.4 V to 18 V
  • Output voltage options available:
    • Fixed: 1.25 V to 5.0 V
    • Adjustable: 1.24 V to 17.66 V
  • 1% accuracy over temperature
  • Low dropout: 340 mV (max) at 300 mA
  • Open-drain, power-good output
  • Thermal shutdown and overcurrent protection
  • Active overshoot pulldown
  • Operating junction temperature: –40°C to +125°C
  • Stable with 1-µF output capacitors
  • Package: 6-pin WSON
  • Ultra-low IQ: 2 µA
  • Input voltage: 2.4 V to 18 V
  • Output voltage options available:
    • Fixed: 1.25 V to 5.0 V
    • Adjustable: 1.24 V to 17.66 V
  • 1% accuracy over temperature
  • Low dropout: 340 mV (max) at 300 mA
  • Open-drain, power-good output
  • Thermal shutdown and overcurrent protection
  • Active overshoot pulldown
  • Operating junction temperature: –40°C to +125°C
  • Stable with 1-µF output capacitors
  • Package: 6-pin WSON

The TPS7A25 low-dropout (LDO) linear voltage regulator introduces a combination of a 2.4-V to 18-V input voltage range with very-low quiescent current (IQ). These features help modern appliances meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A25 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.64 V. Both versions have a 1% output regulation accuracy that provides precision regulation for most microcontroller (MCU) references.

The TPS7A25 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 340 mV at 300 mA of current. This maximum dropout voltage allows for 92.5% efficiency from a 5.4-V input voltage (VIN) to a 5.0-V output voltage (VOUT).

The power-good (PG) indicator can be used to either hold an MCU in reset until power is good, or for sequencing. The PG pin is an open-drain output; therefore, the pin is easily level-shifted for monitoring by a rail other than VOUT. The built-in current limit and thermal shutdown help protect the regulator in the event of a load short or fault.

For a higher output current alternative, consider the TPS7A26.

The TPS7A25 low-dropout (LDO) linear voltage regulator introduces a combination of a 2.4-V to 18-V input voltage range with very-low quiescent current (IQ). These features help modern appliances meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A25 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.64 V. Both versions have a 1% output regulation accuracy that provides precision regulation for most microcontroller (MCU) references.

The TPS7A25 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 340 mV at 300 mA of current. This maximum dropout voltage allows for 92.5% efficiency from a 5.4-V input voltage (VIN) to a 5.0-V output voltage (VOUT).

The power-good (PG) indicator can be used to either hold an MCU in reset until power is good, or for sequencing. The PG pin is an open-drain output; therefore, the pin is easily level-shifted for monitoring by a rail other than VOUT. The built-in current limit and thermal shutdown help protect the regulator in the event of a load short or fault.

For a higher output current alternative, consider the TPS7A26.

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS7A02 활성 200mA, nanopower-IQ (25 nA), low-dropout (LDO) voltage regulator with enable Lower VIN LDO that supports 25-nA IQ and fast transient response
TPS7A03 활성 빠른 과도 응답을 지원하는 나노전력 IQ 200nA 200mA 저손실(LDO) 전압 레귤레이터 Lower VIN LDO that supports 200-nA IQ and fast transient response

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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3개 모두 보기
유형 직함 날짜
* Data sheet TPS7A25 300-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. C) PDF | HTML 2022/12/02
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems 2021/02/18
EVM User's guide TPS7A26EVM-021 Evaluation Module User's Guide 2018/12/07

설계 및 개발

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

평가 보드

TPS7A26EVM-021 — 전원 양호를 지원하는 TPS7A26 500mA, 18V, 초저 IQ LDO 선형 전압 레귤레이터 평가 모듈

The TPS7A26 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A26 device, which is a 500-mA low-dropout (LDO) linear regulator.

TPS7A26EVM-021 is configured to be a reference design for engineering applications requiring current to a (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

TPS7A2501 Unencrypted PSPICE TRANSIENT MODEL

SBVM941.ZIP (55 KB) - PSpice Model
레퍼런스 디자인

TIDA-050031 — 차량용 긴급 통화 애플리케이션을 위한 백업 배터리 전원 레퍼런스 설계

This back-up power reference design is for automotive E-Call application. It uses one cell LiFePO4 as the backup battery. The minimum backup battery voltage can be down to 2 V with boost converter TPS61088-Q1; the maximum output power can be 8 V/1.7A. This reference design is low-cost, high (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
WSON (DRV) 6 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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지원 및 교육

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