홈 전원 관리 선형 및 저손실(LDO) 레귤레이터
홈
전원 관리
선형 및 저손실(LDO) 레귤레이터

TPS7B4253-Q1

활성

오토모티브 300mA, 오프 배터리(40V), 조정 가능한 전압 추적 저손실 전압 레귤레이터

지금 주문
데이터시트

TPS7B4253-Q1

활성
데이터시트 지금 주문

제품 상세 정보

Output options Tracking Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 40 Vout (min) (V) 1.5 Iq (typ) (mA) 0.04 Thermal resistance θJA (°C/W) 45 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 350 Operating temperature range (°C) -40 to 125
Output options Tracking Output Iout (max) (A) 0.3 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 40 Vout (min) (V) 1.5 Iq (typ) (mA) 0.04 Thermal resistance θJA (°C/W) 45 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse voltage protection, Short-to-battery protection PSRR at 100 KHz (dB) 60 Dropout voltage (Vdo) (typ) (mV) 350 Operating temperature range (°C) -40 to 125
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 3A
    • Device CDM ESD Classification Level C6
  • –40 to 45-V Wide Input-Voltage Range (Maximum)
  • Output Voltage Adjusts Down to:
    • 1.5 to 40 V (HTSSOP)
    • 2 to 40 V (SO PowerPAD™)
  • 300-mA Output Current Capability
  • Very-Low Output Tracking Tolerance, ±4 mV
  • 320-mV Low Dropout Voltage when IOUT = 200 mA
  • Separate Pins for Enable and Tracking Inputs (HTSSOP only)
  • Low Quiescent Current (IQ):
    • < 4 µA when EN = LOW
    • 60 µA (Typical) at Light Loads
  • Extremely Wide ESR Range.
    • Stable With 10- to 500-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 Ω
  • Reverse Polarity Protection
  • Current-Limit and Thermal-Shutdown Protection
  • Output Short-Circuit Proof to Ground and Supply
  • Inductive Clamp at OUT Pin
  • Available in the Following Packages:
    • 8-Pin SO PowerPAD Package
    • 20-Pin HTSSOP Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 3A
    • Device CDM ESD Classification Level C6
  • –40 to 45-V Wide Input-Voltage Range (Maximum)
  • Output Voltage Adjusts Down to:
    • 1.5 to 40 V (HTSSOP)
    • 2 to 40 V (SO PowerPAD™)
  • 300-mA Output Current Capability
  • Very-Low Output Tracking Tolerance, ±4 mV
  • 320-mV Low Dropout Voltage when IOUT = 200 mA
  • Separate Pins for Enable and Tracking Inputs (HTSSOP only)
  • Low Quiescent Current (IQ):
    • < 4 µA when EN = LOW
    • 60 µA (Typical) at Light Loads
  • Extremely Wide ESR Range.
    • Stable With 10- to 500-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 Ω
  • Reverse Polarity Protection
  • Current-Limit and Thermal-Shutdown Protection
  • Output Short-Circuit Proof to Ground and Supply
  • Inductive Clamp at OUT Pin
  • Available in the Following Packages:
    • 8-Pin SO PowerPAD Package
    • 20-Pin HTSSOP Package

For automotive off-board sensors and small current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require consistent power supply as onboard components to secure high accuracy of data acquisition.

The TPS7B4253-Q1 device is designed for automotive applications with a 45-V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.

To provide an accurate power supply to the off-board modules, the device offers a 4-mV ultralow tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under reverse polarity condition. The TPS7B4253-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.

For automotive off-board sensors and small current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require consistent power supply as onboard components to secure high accuracy of data acquisition.

The TPS7B4253-Q1 device is designed for automotive applications with a 45-V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.

To provide an accurate power supply to the off-board modules, the device offers a 4-mV ultralow tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under reverse polarity condition. The TPS7B4253-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.
open-in-new 기타 선형 및 저손실(LDO) 레귤레이터 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS7B4254-Q1 활성 오토모티브 150mA, 오프 배터리(40V), 조정 가능한 전압 추적 저손실 전압 레귤레이터 Lower current

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기9
유형 직함 날짜
* Data sheet TPS7B4253-Q1 300-mA 40-V Low-Dropout Voltage-Tracking LDO With 4-mV Tracking Tolerance datasheet (Rev. C) PDF | HTML 2016/07/22
Functional safety information TPS7B4253-Q1 Functional Safety FIT Rate and Failure Mode Distribution 2019/12/17
Application brief Automotive Off-Board Sensor Power Considerations 2018/09/20
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 2017/02/27
Application note Using Tracking LDOs as High-Side Switch (for Low-Current Applications) 2016/10/28
EVM User's guide LDO Parallel Design Evaluation Module User's Guide 2016/09/14
Application note Various Applications for Voltage-Tracking LDO 2016/08/03
Application note TPS7B4253-Q1 Pin FMEA 2015/12/21
User guide TPS7B4253-Q1 Evaluation Module 2014/12/11

설계 및 개발

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

평가 보드

LDO-PARAL-DESG-EVM — TPS7B4253-Q1을 지원하는 LDO 병렬 솔루션 평가 보드

This LDO Parallel Solution evaluation modules (EVM) help designers evaluate the operation and performance of TPS7B4253-Q1 and TPS7B6750-Q1 parallel application. This EVM uses a very low-tolerance, voltagetracking LDO TPS7B4253-Q1 to demonstrate the
implementation of LDO parallel solution for high (...)
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
평가 보드

TPS7B4253EVM — TPS7B4253-Q1 트래킹 LDO 레귤레이터 평가 모듈

 

TPS7B4253 evaluation modules (EVM) help designers evaluate the operation and performance of TPS7B4253QPWPRQ1 tracking LDO. The TPS7B4253 is a monolithic integrated low dropout voltage tracker in HSOIC-DDA package. It is designed to supply off-board sensors in automotive environment. The IC has (...)
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

TPS7B4253 PSpice Transient Model (Rev. C)

SLVMB36C.ZIP (89 KB) - PSpice Model
다운로드
시뮬레이션 모델

TPS7B4253 TINA-TI Reference Design

SLVMC49.TSC (163 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

TPS7B4253 TINA-TI Transient Spice Model

SLVMC48.ZIP (20 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

TPS7B4253 Unencrypted PSpice Transient Model

SLVMC85.ZIP (3 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-00745 — 차량용 차체 제어 모듈을 위한 15W 시스템 수준 전원 레퍼런스 설계

TIDA-00745 is a 14-W system-optimized (CISPR25 Class 4) SMPS design for an automotive body control module. All buck converters used in this design are switching at 2.1 MHz. 

The design is divided into four major blocks:

  1. EMI filter: Common mode and a differential filter for conducted EMI suppression
  2. (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00863 — TPS7B4253-Q1을 지원하는 LDO 병렬 솔루션 레퍼런스 디자인

This reference design uses a very-low tolerant, voltage-tracking LDO TPS7B4253-Q1 to demonstrate the implementation of LDO parallel for high-output current and low-IQ requirements.
Design guide: PDF
회로도: PDF
패키지 핀 다운로드
HSOIC (DDA) 8 옵션 보기
HTSSOP (PWP) 20 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

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