TPS7B4250-Q1

現行

車用 50-mA、無電池 (40-V)、可調式電壓追蹤低壓降電壓穩壓器

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TPS7B4255-Q1 現行 具 5-mV 追蹤公差的車用、70-mA、40-V 電壓追蹤低壓降 (LDO) 穩壓器 Higher current, improved transient performance, tighter accuracy

產品詳細資料

Output options Tracking Output Iout (max) (A) 0.05 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 18 Vout (min) (V) 1.5 Rating Automotive PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.04 Thermal resistance θJA (°C/W) 172 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
Output options Tracking Output Iout (max) (A) 0.05 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 18 Vout (min) (V) 1.5 Rating Automotive PSRR at 100 KHz (dB) 60 Iq (typ) (mA) 0.04 Thermal resistance θJA (°C/W) 172 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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
  • –20-V to 45-V Wide, Maximum Input Voltage Range
  • Output Current, 50 mA
  • Very-Low Output-Tracking Tolerance,
    5 mV (max)
  • 150-mV Low Dropout Voltage When
    IOUT = 10 mA
  • Combined Reference and Enable Input
  • 40-µA Low Quiescent Current at Light Load
  • Extreme, Wide ESR Range.
    • Stable with 1-µF to 50-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 Ω
  • Reverse Polarity Protection
  • Overtemperature Protection
  • Output Short-Circuit Proof to Ground and Supply
  • SOT-23 Package

All trademarks are the property of their respective owners.

  • 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
  • –20-V to 45-V Wide, Maximum Input Voltage Range
  • Output Current, 50 mA
  • Very-Low Output-Tracking Tolerance,
    5 mV (max)
  • 150-mV Low Dropout Voltage When
    IOUT = 10 mA
  • Combined Reference and Enable Input
  • 40-µA Low Quiescent Current at Light Load
  • Extreme, Wide ESR Range.
    • Stable with 1-µF to 50-µF Ceramic Output Capacitor, ESR 1 mΩ to 20 Ω
  • Reverse Polarity Protection
  • Overtemperature Protection
  • Output Short-Circuit Proof to Ground and Supply
  • SOT-23 Package

All trademarks are the property of their respective owners.

The TPS7B4250-Q1 device is a monolithic, integrated low-dropout voltage tracker. The device is available in a SOT-23 package. The TPS7B4250-Q1 device is designed to supply off-board sensors in an automotive environment. The IC has integrated protection for overload, over temperature, reverse polarity, and output short-circuit to the battery and ground.

A reference voltage applied at the adjust-input pin, ADJ, regulates supply voltages up to VIN = 45 V with high accuracy and loads up to 50 mA.

By setting the adjust/enable input pin, ADJ/EN, to low, the TPS7B4250-Q1 device switches to standby mode which reduces the quiescent current to the minimum value.

For all available packages, see the orderable addendum at the end of the data sheet.

The TPS7B4250-Q1 device is a monolithic, integrated low-dropout voltage tracker. The device is available in a SOT-23 package. The TPS7B4250-Q1 device is designed to supply off-board sensors in an automotive environment. The IC has integrated protection for overload, over temperature, reverse polarity, and output short-circuit to the battery and ground.

A reference voltage applied at the adjust-input pin, ADJ, regulates supply voltages up to VIN = 45 V with high accuracy and loads up to 50 mA.

By setting the adjust/enable input pin, ADJ/EN, to low, the TPS7B4250-Q1 device switches to standby mode which reduces the quiescent current to the minimum value.

For all available packages, see the orderable addendum at the end of the data sheet.

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類型 標題 日期
* Data sheet TPS7B4250-Q1 50-mA 40-V Voltage-Tracking LDO With 5-mV Tracking Tolerance datasheet (Rev. C) PDF | HTML 2016年 9月 28日
Functional safety information TPS7B4250-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 2023年 4月 17日
Application brief Automotive Off-Board Sensor Power Considerations 2018年 9月 20日
More literature Fundamentals of designing with LDOs in auto battery direct connect applications 2017年 2月 27日
Application note Short-Circuit Reliability Test for TPS7B4250-Q1 2016年 11月 16日
Application note Using Tracking LDOs as High-Side Switch (for Low-Current Applications) 2016年 10月 28日
Application note Various Applications for Voltage-Tracking LDO 2016年 8月 3日
Application note TPS7B4250-Q1 Pin FMEA 2015年 9月 23日
User guide TPS7B4250 Evaluation Module 2013年 10月 17日

設計與開發

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開發板

TPS7B4250EVM — TPS7B4250-Q1 追蹤 LDO 穩壓器評估模組

The TPS7B4250 is a monolithic integrated low dropout voltage tracker in SOT-23 package. It is designed to supply off-board sensors in automotive environment. The IC has integrated protection for overload, over temperature, reverse polarity as well as output short circuit to battery and ground

Supply (...)

使用指南: PDF
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模擬型號

TPS7B4250 PSpice Transient Model

SLVM976.ZIP (20 KB) - PSpice Model
模擬型號

TPS7B4250 TINA-TI Transient Reference Design

SLVMC73.TSC (502 KB) - TINA-TI Reference Design
模擬型號

TPS7B4250 TINA-TI Transient Spice Model

SLVMC72.ZIP (7 KB) - TINA-TI Spice Model
模擬型號

TPS7B4250 Unencrypted PSpice Transient Model

SLVMC87.ZIP (1 KB) - PSpice Model
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

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