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線性與低壓差 (LDO) 穩壓器

TPS7A02

現行

具啟用功能的 200mA 奈米功率 IQ (25nA), 低壓差 (LDO) 電壓穩壓器

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產品規格表

TPS7A02

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Vin (max) (V) 6 Vin (min) (V) 1.5 Iout (max) (A) 0.2 Output options Fixed Output Vout (max) (V) 1, 1.2, 1.5, 1.75, 1.8, 1.85, 2, 2.2, 2.3, 2.5, 2.8, 3, 3.1, 3.3, 3.6, 5 Vout (min) (V) 0.8 Fixed output options (V) 0.8, 0.9, 1, 1.2, 1.5, 1.75, 1.8, 1.85, 2, 2.2, 2.3, 2.5, 2.8, 2.9, 3, 3.1, 3.3, 3.6, 5 Noise (µVrms) 130 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.000025 Features Enable, Output discharge Thermal resistance θJA (°C/W) 179.1 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 1.5 Dropout voltage (Vdo) (typ) (mV) 205 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 6 Vin (min) (V) 1.5 Iout (max) (A) 0.2 Output options Fixed Output Vout (max) (V) 1, 1.2, 1.5, 1.75, 1.8, 1.85, 2, 2.2, 2.3, 2.5, 2.8, 3, 3.1, 3.3, 3.6, 5 Vout (min) (V) 0.8 Fixed output options (V) 0.8, 0.9, 1, 1.2, 1.5, 1.75, 1.8, 1.85, 2, 2.2, 2.3, 2.5, 2.8, 2.9, 3, 3.1, 3.3, 3.6, 5 Noise (µVrms) 130 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.000025 Features Enable, Output discharge Thermal resistance θJA (°C/W) 179.1 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 1.5 Dropout voltage (Vdo) (typ) (mV) 205 Operating temperature range (°C) -40 to 125
DSBGA (YCH) 4 0.405769 mm² (0.637 mm × 0.637 mm) X2SON (DQN) 4 1 mm² (1 mm × 1 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Ultra-low IQ: 25 nA (typ), even in dropout
  • Shutdown IQ: 3 nA (typ)
  • Excellent transient response (1 mA to 50 mA)
    • < 10-µs settling time
    • 100-mV undershoot
  • Packages:
    • 1.0-mm × 1.0-mm X2SON
    • SOT23-5
    • 0.64-mm × 0.64-mm DSBGA
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range: 0.8 V to 5.0 V (fixed)
  • Output accuracy: 1.5% over temperature
  • Smart enable pulldown
  • Very low dropout:
    • 270 mV (max) at 200 mA (VOUT = 3.3 V)
  • Stable with a 1-µF or larger capacitor
  • Ultra-low IQ: 25 nA (typ), even in dropout
  • Shutdown IQ: 3 nA (typ)
  • Excellent transient response (1 mA to 50 mA)
    • < 10-µs settling time
    • 100-mV undershoot
  • Packages:
    • 1.0-mm × 1.0-mm X2SON
    • SOT23-5
    • 0.64-mm × 0.64-mm DSBGA
  • Input voltage range: 1.5 V to 6.0 V
  • Output voltage range: 0.8 V to 5.0 V (fixed)
  • Output accuracy: 1.5% over temperature
  • Smart enable pulldown
  • Very low dropout:
    • 270 mV (max) at 200 mA (VOUT = 3.3 V)
  • Stable with a 1-µF or larger capacitor

The TPS7A02 is an ultra-small, ultra-low quiescent current low-dropout linear regulator (LDO) that can source 200 mA with excellent transient performance.

The TPS7A02, with an ultra-low IQ of 25 nA, is designed specifically for applications where very-low quiescent current is a critical parameter. This device maintains low IQ consumption even in dropout mode to further increase battery life. When in shutdown or disabled mode, the device consumes ultra-low, 3-nA IQ that helps increase the shelf life of the battery. The TPS7A02 has an output range of 0.8 V to 5.0 V available in 50-mV steps to support the lower core voltages of modern microcontrollers (MCUs).

The TPS7A02 features a smart enable circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is left floating and helps minimize the external components used to pulldown the EN pin. This circuit also helps minimize the current drawn through the external pulldown circuit when the device is enabled.

The TPS7A02 is fully specified for TJ = –40°C to +125°C operation.

The TPS7A02 is an ultra-small, ultra-low quiescent current low-dropout linear regulator (LDO) that can source 200 mA with excellent transient performance.

The TPS7A02, with an ultra-low IQ of 25 nA, is designed specifically for applications where very-low quiescent current is a critical parameter. This device maintains low IQ consumption even in dropout mode to further increase battery life. When in shutdown or disabled mode, the device consumes ultra-low, 3-nA IQ that helps increase the shelf life of the battery. The TPS7A02 has an output range of 0.8 V to 5.0 V available in 50-mV steps to support the lower core voltages of modern microcontrollers (MCUs).

The TPS7A02 features a smart enable circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is left floating and helps minimize the external components used to pulldown the EN pin. This circuit also helps minimize the current drawn through the external pulldown circuit when the device is enabled.

The TPS7A02 is fully specified for TJ = –40°C to +125°C operation.
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技術文件

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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 TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast Transient Response datasheet (Rev. C) PDF | HTML 2022/9/27
技術文章 3 ways low-Iq technologies extend battery life without compromising system performance PDF | HTML 2024/1/5
白皮書 克服低功耗應用中的低 IQ 挑戰 (Rev. B) PDF | HTML Download English Version (Rev.B) PDF | HTML 2023/4/19
白皮書 Understanding the Foundations of Quiescent Current in Linear Power Systems 2021/2/18
技術文章 Accelerate your electric mask design PDF | HTML 2020/7/1
應用說明 Increase Your Battery Life with Nano Quiescent Current LDO 2020/6/8
技術文章 How to design an infrared thermometer quickly PDF | HTML 2020/4/7
Application brief No Tradeoffs: Linear Power Supplies for Ultra-Low Power and Dynamic Performance 2020/2/6
類比設計期刊 Using power solutions to extend battery life in MSP430(TM) MCU applications (Rev. A) 2019/9/11
技術文章 LDO basics: introduction to quiescent current PDF | HTML 2018/6/20

設計與開發

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開發板

MULTIPKGLDOEVM-823 — 支援 DBV、DRB、DRV 和 DQN 封裝的通用 LDO 線性穩壓器評估模組

MULTIPKGLDOEVM-823 評估模組 (EVM) 可協助您評估多種常用線性穩壓器封裝的運作與性能，以了解是否可在電路應用中使用。此特定 EVM 配置具有 DRB、DRV、DQN 和 DBV 元件封裝，能讓您焊接並評估低壓差 (LDO) 穩壓器。

使用指南: PDF
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模擬型號

TPS7A0x CORE PSPICE Model

SBVM950.ZIP (15 KB) - PSpice 模型
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參考設計

TIDA-010072 — 適合呼吸應用的鼓風機與閥門控制參考設計

此參考設計提供可支援高達 ±200 kRPM/s 馬達加速與減速的精巧系統設計，這是許多呼吸器應用的主要需求。此設計支援包括 TMS320F28027F 在內的許多板外 C2000 控制器，實現低成本、無感測器磁場定向控制 (FOC)。此外，此設計支援廣泛輸入電壓範圍 (6-28 V)，可同時支援穩壓線路和電池電源。為驅動鼓風機和閥門，此設計分別使用 DRV8323RS 智慧型閘極驅動器和 DRV8847 馬達驅動器。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YCH) 4 Ultra Librarian
X2SON (DQN) 4 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
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