首頁 電源管理 線性與低壓差 (LDO) 穩壓器
首頁
電源管理
線性與低壓差 (LDO) 穩壓器
最新

TPS7A43-Q1

現行

具電源良好與精密啟用功能的車用、50mA、85V、超低 IQ 低 (LDO) 穩壓器

立即訂購
產品規格表

TPS7A43-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Vin (max) (V) 85 Vin (min) (V) 4 Iout (max) (A) 0.05 Output options Adjustable Output, Fixed Output Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Noise (µVrms) 125 PSRR at 100 KHz (dB) 73 Iq (typ) (mA) 0.0055 Features Enable, Power good Thermal resistance θJA (°C/W) 51.5 Load capacitance (min) (µF) 1 Regulated outputs (#) 2 Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 85 Vin (min) (V) 4 Iout (max) (A) 0.05 Output options Adjustable Output, Fixed Output Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Noise (µVrms) 125 PSRR at 100 KHz (dB) 73 Iq (typ) (mA) 0.0055 Features Enable, Power good Thermal resistance θJA (°C/W) 51.5 Load capacitance (min) (µF) 1 Regulated outputs (#) 2 Accuracy (%) 0.5 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 150
HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • 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)

  • ±0.85% 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]
    • Meets IPC-2221B for clearance and creepage
  • 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)

  • ±0.85% 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]
    • Meets IPC-2221B for clearance and creepage

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 a good fit 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 ±0.85% 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 an 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. Use the EN input and PG output 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 a good fit 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 ±0.85% 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 an 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. Use the EN input and PG output for sequencing multiple power sources in the system.
filter 尋找其它 線性與低壓差 (LDO) 穩壓器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 2
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS7A43-Q1 Automotive 50mA, 85V, Ultra-Low IQ , Low-Dropout Voltage Regulator With Power-Good, Precision Enable, and Selectable Mid-Output Rail datasheet (Rev. A) PDF | HTML 2026/6/11
功能安全資訊 TPS7A43-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2026/1/14

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS7A43EVM-047 — 具電源良好評估模組的 TPS7A43 50-mA、85-V 超低 IQ 雙 LDO 電壓穩壓器

TPS7A43EVM-047 評估模組 (EVM) 是用於評估 TPS7A43 線性穩壓器的運作與性能的平台。此 EVM 配置包含適合一般應用領域的單一 50-mA、高電壓、低靜態電流 (IQ)、雙輸出、低壓差 (LDO) 電壓穩壓器。此穩壓器能夠在兩個輸出之間提供高達 50 mA 的分流，並具備高達 85 V 的廣泛輸入電壓 (VIN) 範圍。

爲確保 TPS7A43 的穩定性，請使用 1-µF (或更大) 輸出電容器 (COUT) 和用於中間輸出至少 3 x COUT。

使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HVSSOP (DGQ) 10 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片