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TPS7B84-Q1

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TPS7C84-Q1 正在供货 具有电源正常指示功能和宽输出电压范围的汽车级 150mA、40V 低压降线性稳压器 Additional Power Good functionality and wider output voltage range

TPS7B84-Q1

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Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.15 Output options Adjustable Output, Fixed Output Vout (max) (V) 3.3, 5, 8, 18 Vout (min) (V) 1.2, 3.3, 5, 8 Fixed output options (V) 3.3, 5, 8 Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.018 Features Enable, Wettable flanks package Thermal resistance θJA (°C/W) 50.8, 85.5 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 0.75 Dropout voltage (Vdo) (typ) (mV) 155 Operating temperature range (°C) -40 to 125
Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.15 Output options Adjustable Output, Fixed Output Vout (max) (V) 3.3, 5, 8, 18 Vout (min) (V) 1.2, 3.3, 5, 8 Fixed output options (V) 3.3, 5, 8 Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.018 Features Enable, Wettable flanks package Thermal resistance θJA (°C/W) 50.8, 85.5 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 0.75 Dropout voltage (Vdo) (typ) (mV) 155 Operating temperature range (°C) -40 to 125
SOT-223 (DCY) 4 45.5 mm² (6.5 mm × 7 mm) VSON (DRB) 8 9 mm² (3 mm × 3 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3V to 40V (42V max)
  • Output voltage range:
    • Adjustable output: 1.2V to 18V
    • Fixed output: 3.3V and 5V
  • Output current: up to 150mA
  • Output voltage accuracy: ±0.75% (max)
  • Low dropout voltage:
    • 225mV (max) at 150mA (VOUT ≥ 3.3V)
  • Low quiescent current:
    • 18µA (typ)
    • 4µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Stable with a 2.2µF or larger capacitor
  • Functional Safety-Capable
  • Package options:
    • DRB (8-pin VSON), RθJA: 50.8°C/W
    • DCY (4-pin SOT-223), RθJA: 85.5°C/W
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3V to 40V (42V max)
  • Output voltage range:
    • Adjustable output: 1.2V to 18V
    • Fixed output: 3.3V and 5V
  • Output current: up to 150mA
  • Output voltage accuracy: ±0.75% (max)
  • Low dropout voltage:
    • 225mV (max) at 150mA (VOUT ≥ 3.3V)
  • Low quiescent current:
    • 18µA (typ)
    • 4µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Stable with a 2.2µF or larger capacitor
  • Functional Safety-Capable
  • Package options:
    • DRB (8-pin VSON), RθJA: 50.8°C/W
    • DCY (4-pin SOT-223), RθJA: 85.5°C/W

The TPS7B84-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40V, which allows the device to withstand transients (such as load dump) that are anticipated in automotive systems. With only an 18µA quiescent current, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The TPS7B84-Q1 has both fixed and adjustable output types. The wide output voltage range allows the device to generate the bias voltage for silicon carbide (SiC) gate drivers and microphones as well as power MCUs and processors.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.75% over line, load, and temperature.

The device is available in both a SOT223 package and a small VSON package with wettable flanks that facilitates a compact printed circuit board (PCB) design. The low thermal resistance enables sustained operation despite significant dissipation across the device.

The TPS7B84-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40V, which allows the device to withstand transients (such as load dump) that are anticipated in automotive systems. With only an 18µA quiescent current, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The TPS7B84-Q1 has both fixed and adjustable output types. The wide output voltage range allows the device to generate the bias voltage for silicon carbide (SiC) gate drivers and microphones as well as power MCUs and processors.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.75% over line, load, and temperature.

The device is available in both a SOT223 package and a small VSON package with wettable flanks that facilitates a compact printed circuit board (PCB) design. The low thermal resistance enables sustained operation despite significant dissipation across the device.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TPS7B84-Q1 Automotive, 150mA, 40V, Adjustable, Low-Dropout Regulator 数据表 (Rev. C) PDF | HTML 2026-11-5
应用手册 电路板布局对 LDO 热性能影响的经验分析 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2025-10-23
功能安全信息 TPS7B84-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 2024-11-7
应用手册 A Topical Index of TI LDO Application Notes (Rev. F) 2019-6-27
电子书 LDO Basics (Rev. A) 2019-4-8
技术文章 LDO basics: dropout PDF | HTML 2017-3-16

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

MULTIPKGLDOEVM-823 — 支持 DBV、DRB、DRV 和 DQN 封装的通用 LDO 线性稳压器评估模块

MULTIPKGLDOEVM-823 评估模块 (EVM) 可帮助您评估可能用于电路应用的多种常见线性稳压器封装的操作和性能。这种特殊的 EVM 配置采用 DRB、DRV、DQN 和 DBV 封装，便于您焊接和评估低压降 (LDO) 稳压器。

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评估板

TPS7B4255EVM-062 — TPS7B4255 70mA、40V 电压跟踪低压降 (LDO) 稳压器评估模块

TPS7B4255EVM-062 评估模块 (EVM) 用于评估 TPS7B4255-Q1 线性稳压器在电路应用中使用时的运行情况和性能。

此特定 EVM 配置包含一个适用于汽车应用的 70mA、高电压、低压降 (LDO) 电压跟踪稳压器，以及一个针对超低寄生测量进行优化的板载负载瞬态电路。该稳压器能够以 3mV 的跟踪容差提供高达 70mA 的电流、并且具有高达 40V 的宽输入电压 (VIN) 范围和高达 45V 的瞬态电压。为了确保 TPS7B4255-Q1 的稳定性，请使用等效串联电阻 (ESR) 小于 3Ω 的 1µF（或更大）的输出电容器。

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评估板

TPS7B8401EVM — TPS7B84-Q1 150mA 低 IQ 高 PSRR LDO 稳压器评估模块

TPS7B8401 评估模块 (EVM) 是一个用于评估 TPS7B84 系列线性稳压器的操作和性能的平台。

此特定 EVM 配置包含一个宽输入电压、小尺寸、线性稳压器，适用于各种应用。该稳压器能够向具有低压降 (LDO)（VIN 至 VOUT）的负载提供最大 150mA 的电流。为实现稳定性，需使用最小降额电容为 1μF（或更高）的输出电容器。

用户指南: PDF
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评估板

TRKRLDOEVM-119 — 通用低压降 (LDO) 跟踪器稳压器评估模块

通用低压降 (LDO) 跟踪器稳压器评估模块 (EVM) 用于评估具有外部元件焊盘的 TI 跟踪器 LDO 器件以及针对超低寄生测量进行优化的板载负载瞬态电路的运行情况和性能。此 EVM 适合采用 DDA 和 D 封装的跟踪器 LDO。

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仿真模型

TPS7B84-Q1 PSpice Transient Model

SBVM965.ZIP (18 KB) - PSpice 模型
支持的产品和硬件
参考设计

PMP23223 — 具有辅助电源的智能隔离式栅极驱动器参考设计

此参考设计展示了 UCC21732 栅极驱动器与 UCC14xxx 系列辅助电源的组合。此设计可用于驱动各种功率管，包括直接连接到 Wolfspeed 碳化硅 (SiC) 场效应晶体管 (FET) 模块。此参考设计可用作高侧或低侧驱动器，也可使用容性模拟负载进行测试。

UCC14240-Q1、UCC14141-Q1 和 UCC14341-Q1 都是集成辅助电源的直接替代产品，每个产品都具有不同的目标输入电压和输出功率。

UCC14xxx-Q1 信息：

  • UCC14240-Q1
    • 隔离：基础型
    • 输入电压 (V)：24（21 至 27）
    • 输出电压 (V)：25（18 至 25）
    • 功率输出 (W)：2
  • (...)
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOT-223 (DCY) 4 Ultra Librarian
VSON (DRB) 8 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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