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線性與低壓差 (LDO) 穩壓器

TPS7A14

現行

1-A、低輸入及輸出電壓、超低壓差 (LDO) 電壓穩壓器

立即訂購
產品規格表

TPS7A14

現行
產品規格表 立即訂購

產品詳細資料

Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 2.2 Vin (min) (V) 0.7 Vout (max) (V) 2 Vout (min) (V) 0.5 Fixed output options (V) 0.8, 0.85, 0.9, 1, 1.05, 1.1, 1.2, 1.3, 1.8 Noise (µVrms) 7.2 Iq (typ) (mA) 0.0056 Thermal resistance θJA (°C/W) 136.7 Rating Catalog Load capacitance (min) (µF) 1.5 Regulated outputs (#) 1 Features Enable, Output discharge Accuracy (%) 1 PSRR at 100 KHz (dB) 43 Dropout voltage (Vdo) (typ) (mV) 70 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 2.2 Vin (min) (V) 0.7 Vout (max) (V) 2 Vout (min) (V) 0.5 Fixed output options (V) 0.8, 0.85, 0.9, 1, 1.05, 1.1, 1.2, 1.3, 1.8 Noise (µVrms) 7.2 Iq (typ) (mA) 0.0056 Thermal resistance θJA (°C/W) 136.7 Rating Catalog Load capacitance (min) (µF) 1.5 Regulated outputs (#) 1 Features Enable, Output discharge Accuracy (%) 1 PSRR at 100 KHz (dB) 43 Dropout voltage (Vdo) (typ) (mV) 70 Operating temperature range (°C) -40 to 125
DSBGA (YBK) 6 0.8236 mm² 1.16 x 0.71 WSON (DRV) 6 4 mm² 2 x 2
  • Ultra-low input voltage range: 0.7 V to 2.2 V
  • High efficiency:
    • Dropout voltage at 1 A: 70 mV (max, YBK)
    • Specified for V IN = V OUT +100 mV
  • Excellent load transient response:
    • 20 mV for I LOAD = 3 mA to 600 mA in 20 µs
  • Accuracy over load, line, and temperature: 1%
  • High PSRR:
    • 80 dB at 1 kHz (V OUT = 0.8 V, I OUT = 500 mA)
  • Available in fixed-output voltages:
    • 0.5 V to 2.0 V (in 25-mV steps)
  • V BIAS range: 2.2 V to 5.5 V
  • Packages:
    • 6-pin DSBGA: 0.71 mm × 1.16 mm
    • 6-pin WSON: 2 mm × 2 mm
  • Active output discharge
  • Ultra-low input voltage range: 0.7 V to 2.2 V
  • High efficiency:
    • Dropout voltage at 1 A: 70 mV (max, YBK)
    • Specified for V IN = V OUT +100 mV
  • Excellent load transient response:
    • 20 mV for I LOAD = 3 mA to 600 mA in 20 µs
  • Accuracy over load, line, and temperature: 1%
  • High PSRR:
    • 80 dB at 1 kHz (V OUT = 0.8 V, I OUT = 500 mA)
  • Available in fixed-output voltages:
    • 0.5 V to 2.0 V (in 25-mV steps)
  • V BIAS range: 2.2 V to 5.5 V
  • Packages:
    • 6-pin DSBGA: 0.71 mm × 1.16 mm
    • 6-pin WSON: 2 mm × 2 mm
  • Active output discharge

The TPS7A14 is a small, ultra low-dropout regulator (LDO) with excellent transient response. This device can source 1 A with outstanding ac performance (load and line transient responses). The input voltage range is 0.7 V to 2.2 V, and the output range is 0.5 V to 2.0 V with a very high accuracy of 1% over load, line, and temperature.

The primary power path is through the IN pin and can be connected to a power supply as low as 50 mV above the output voltage. All electrical characteristics (including excellent output voltage tolerance, transient response, and PSRR) are specified for input voltages 100 mV greater than the output voltage, thereby yielding high practical efficiency. This regulator supports very low input voltages with the use of a higher, externally supplied V BIAS rail that is used to power the internal circuitry of the LDO. For example, the supply voltage to the IN pin can be the output of a high-efficiency, DC/DC step-down regulator and the BIAS pin supply voltage can be a rechargeable battery.

The TPS7A14 is equipped with an active pulldown circuit to quickly discharge the output when disabled, and provides a known start-up state.

The TPS7A14 is available in a 2-mm × 2-mm, 6-pin WSON package and an ultra-small 0.71-mm × 1.16-mm, 6-bump WCSP package.

The TPS7A14 is a small, ultra low-dropout regulator (LDO) with excellent transient response. This device can source 1 A with outstanding ac performance (load and line transient responses). The input voltage range is 0.7 V to 2.2 V, and the output range is 0.5 V to 2.0 V with a very high accuracy of 1% over load, line, and temperature.

The primary power path is through the IN pin and can be connected to a power supply as low as 50 mV above the output voltage. All electrical characteristics (including excellent output voltage tolerance, transient response, and PSRR) are specified for input voltages 100 mV greater than the output voltage, thereby yielding high practical efficiency. This regulator supports very low input voltages with the use of a higher, externally supplied V BIAS rail that is used to power the internal circuitry of the LDO. For example, the supply voltage to the IN pin can be the output of a high-efficiency, DC/DC step-down regulator and the BIAS pin supply voltage can be a rechargeable battery.

The TPS7A14 is equipped with an active pulldown circuit to quickly discharge the output when disabled, and provides a known start-up state.

The TPS7A14 is available in a 2-mm × 2-mm, 6-pin WSON package and an ultra-small 0.71-mm × 1.16-mm, 6-bump WCSP package.
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類型 標題 日期
* Data sheet TPS7A14 1-A, Low VIN, Low VOUT, Ultra-Low Dropout Regulator datasheet (Rev. D) PDF | HTML 2023年 8月 29日
EVM User's guide TPS7A14EVM-058, TPS7A14 Evaluation Module User's Guide (Rev. A) PDF | HTML 2023年 6月 29日
Certificate TPS7A14EVM-095 EU Declaration of Conformity (DoC) 2023年 6月 6日
Application note Design Flexibility of TPS7A1408 to Variable Vout and Stability Check PDF | HTML 2022年 6月 13日
Certificate TPS7A14EVM-058 EU RoHS Declaration of Conformity (DoC) 2021年 9月 24日

設計與開發

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開發板

TPS7A14EVM-058 — TPS7A14 評估模組適用於 1-A、低輸入及輸出電壓、超 LDO 電壓穩壓器

TPS7A14 評估模組 (EVM) 可協助設計工程師評估 TPS7A14 線性穩壓器的運作及性能，以在其本身電路應用中使用。TPS7A14EVM-058 配置包含適合各種應用的單一低雜訊、小尺寸線性穩壓器。該穩壓器能以低 VIN-to-VOUT 壓降電壓為負載提供最高 1 A。爲了穩定，請使用最小降額輸出電容 1.5 µF (或更大)。隨附新增高性能負載暫態電路，以改善低壓差 (LDO) 穩壓器的量測能力。

使用指南: PDF | HTML
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開發板

TPS7A14EVM-095 — 適用於超低雜訊正電壓穩壓器的 TPS7A14 評估模組

德州儀器 TPS7A14評估模組 (EVM) 可評估 TPS7A14 線性穩壓器系列的運作及性能。此 EVM 配置包含適合各種廣泛應用的單一低雜訊、小尺寸、線性穩壓器。該穩壓器能以低 VIN 至 VOUT 降電壓為負載提供最高 1 A。爲了保持穩定，請使用最小降額電容 1.5-uF (或更大) 輸出電容器。隨附新增高性能負載暫態電路，以改善 LDO 的量測能力。
使用指南: PDF | HTML
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模擬型號

TPS7A14 PSpice Transient Model

SBVM978.ZIP (86 KB) - PSpice Model
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