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TPS7A43-Q1

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具有电源正常状态指示和精密使能功能的 100mA 85V 超低 IQ 低压降稳压器

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TPS7A43-Q1

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产品详情

Rating Automotive Operating temperature range (°C) to
Rating Automotive Operating temperature range (°C) to
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications:
    • Temperature Grade 1: −40°C to +125°C, TA
    • Junction temperature: −40°C to +150°C, TJ
  • Wide input voltage range: 4V to 85V
    • Supports direct connection to 48V, 24V, or 12V automotive battery
  • Wide output voltage range (VOUT):
    • Adjustable: 1.24V to 14.5V
    • Fixed: 3.3V, 5.0V
  • Selectable intermediate output (VMID_OUT):
    • 10V, 12V, 15V
  • Output current:
    • 50mA (shared between OUT and MID_OUT)

  • ±0.8% VOUT accuracy over full temperature range

  • Ultra-low IQ: 5.5µA (typical)
  • Precision enable
  • Power-good (PG) output
  • High PSRR at 100kHz:
    • 73dB (OUT)
    • 47dB (MID_OUT)
  • Thermal shutdown and overcurrent protection
  • Package:
    • 10-pin HVSSOP (DGQ) [RθJA = 51.5°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
  • Wide input voltage range: 4V to 85V
    • Supports direct connection to 48V, 24V, or 12V automotive battery
  • Wide output voltage range (VOUT):
    • Adjustable: 1.24V to 14.5V
    • Fixed: 3.3V, 5.0V
  • Selectable intermediate output (VMID_OUT):
    • 10V, 12V, 15V
  • Output current:
    • 50mA (shared between OUT and MID_OUT)

  • ±0.8% VOUT accuracy over full temperature range

  • Ultra-low IQ: 5.5µA (typical)
  • Precision enable
  • Power-good (PG) output
  • High PSRR at 100kHz:
    • 73dB (OUT)
    • 47dB (MID_OUT)
  • Thermal shutdown and overcurrent protection
  • Package:
    • 10-pin HVSSOP (DGQ) [RθJA = 51.5°C/W]

The TPS7A43-Q1 is a wide input, low-dropout (LDO) linear voltage regulator with 4V to 85V input voltage range and very-low quiescent current. This device can support a wide range of input voltages and withstand line transient voltages up to 90V (200ms), making the device designed for direct connection to 48V, 24V, or 12V automotive battery. Ultra-low IQ of 5.5µA typical, 9µA maximum helps meet stringent system requirements and extends battery life in battery-connected applications.

The TPS7A43-Q1 output (OUT) is available in both fixed and adjustable output versions, with regulation from 1.24V to 14.5V and ±0.8% accuracy across temperature. The device is intended for use in an array of automotive applications, including supply for always-on loads like microcontrollers and wake-up functionality for various ICs (for example, CAN). The device is an efficient option to provide power to critical components during system sleep conditions. The TPS7A43-Q1 also features a second intermediate output (MID_OUT) that can be set to 10V, 12V, or 15V using the MVSEL pins. MID_OUT can supply power for LIN or be used to bias amplifiers, minimizing system complexity by eliminating the need for additional regulators.

The TPS7A43-Q1 features a precision enable input that enables or disables the LDO at a fixed and accurate threshold voltage using a resistor divider from the input.

The power-good (PG) output is used to monitor the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power sources in the system.

The TPS7A43-Q1 is a wide input, low-dropout (LDO) linear voltage regulator with 4V to 85V input voltage range and very-low quiescent current. This device can support a wide range of input voltages and withstand line transient voltages up to 90V (200ms), making the device designed for direct connection to 48V, 24V, or 12V automotive battery. Ultra-low IQ of 5.5µA typical, 9µA maximum helps meet stringent system requirements and extends battery life in battery-connected applications.

The TPS7A43-Q1 output (OUT) is available in both fixed and adjustable output versions, with regulation from 1.24V to 14.5V and ±0.8% accuracy across temperature. The device is intended for use in an array of automotive applications, including supply for always-on loads like microcontrollers and wake-up functionality for various ICs (for example, CAN). The device is an efficient option to provide power to critical components during system sleep conditions. The TPS7A43-Q1 also features a second intermediate output (MID_OUT) that can be set to 10V, 12V, or 15V using the MVSEL pins. MID_OUT can supply power for LIN or be used to bias amplifiers, minimizing system complexity by eliminating the need for additional regulators.

The TPS7A43-Q1 features a precision enable input that enables or disables the LDO at a fixed and accurate threshold voltage using a resistor divider from the input.

The power-good (PG) output is used to monitor the voltage at the feedback pin to indicate the status of the output voltage. The EN input and PG output can be used for sequencing multiple power sources in the system.
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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 TPS7A43-Q1 Automotive 50mA, 85V, Ultra-Low IQ , Low-Dropout Voltage Regulator With Power-Good, Precision Enable, and Selectable Mid-Output Rail 数据表 PDF | HTML 2026年 3月 9日
功能安全信息 TPS7A43-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2026年 1月 14日

设计与开发

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评估板

TPS7A43EVM-047 — TPS7A43 具有电源正常状态指示功能的 50mA 85V 超低 IQ 双通道 LDO 稳压器评估模块

TPS7A43EVM-047 评估模块 (EVM) 是一个用于评估 TPS7A43 线性稳压器操作和性能的平台。此 EVM 配置包含一个 50mA、高压、低静态电流 (IQ)、双路输出、低压降 (LDO) 稳压器，适用于一般应用。稳压器能够在两路输出之间提供高达 50mA 的双电源，并具有高达 85V 的宽输入电压 (VIN) 范围。

对于 TPS7A43 的稳定性，请使用 1µF（或更大）的输出电容器 (COUT)，并至少使用 3 × COUT，以实现中等输出。

用户指南: PDF | HTML
英语版: PDF | HTML
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