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線性與低壓差 (LDO) 穩壓器

TPS7A44

現行

具備電源良好且可選中輸出軌的 50-mA、65-V、低 IQ、LDO 線性電壓穩壓器

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TPS7A44

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 65 Vin (min) (V) 4 Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Rating Catalog Noise (µVrms) 115 PSRR at 100 KHz (dB) 75 Iq (typ) (mA) 0.0055 Thermal resistance θJA (°C/W) 53.7 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 65 Vin (min) (V) 4 Vout (max) (V) 14.5 Vout (min) (V) 1.24 Fixed output options (V) 3.3, 5 Rating Catalog Noise (µVrms) 115 PSRR at 100 KHz (dB) 75 Iq (typ) (mA) 0.0055 Thermal resistance θJA (°C/W) 53.7 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 600 Operating temperature range (°C) -40 to 125
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • Input voltage: 4 V to 65 V
  • Wide output (OUT) voltage range:
    • Adjustable: 1.24 V to 14.5 V
    • Fixed: 1.25 V to 5.0 V
  • Selectable intermediate output (MID_OUT):
    • 10 V, 12 V, 15 V
  • Maximum output current:
    • 50 mA (shared between OUT and MID_OUT)
  • 1% accuracy over temperature
  • Ultra-low IQ: 5.5 µA
  • Precision enable
  • Power-good (PG) output (open drain)
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Package: HVSSOP-10 (RθJA = 53.7°C/W)
  • Input voltage: 4 V to 65 V
  • Wide output (OUT) voltage range:
    • Adjustable: 1.24 V to 14.5 V
    • Fixed: 1.25 V to 5.0 V
  • Selectable intermediate output (MID_OUT):
    • 10 V, 12 V, 15 V
  • Maximum output current:
    • 50 mA (shared between OUT and MID_OUT)
  • 1% accuracy over temperature
  • Ultra-low IQ: 5.5 µA
  • Precision enable
  • Power-good (PG) output (open drain)
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Package: HVSSOP-10 (RθJA = 53.7°C/W)

The TPS7A44 low-dropout (LDO) linear voltage regulator introduces a combination of a 4-V to 65-V input voltage range with very-low quiescent current.

This device can support a wide range of input voltages (for example, a 15-s battery and 24-V to 48-V line power) and withstand line transient voltages up to 85 V. These features help modern applications meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A44 output (OUT) is available in both fixed and adjustable output versions, which can regulate from 1.24 V to 14.5 V at 1% accuracy. The device also provides a second intermediate output (MID_OUT) that can be set to 10 V, 12 V, and 15 V using the MVSEL pins and can be used to bias gate drivers in place of a discrete regulator.

The TPS7A44 features a precision enable input that helps enable or disable 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 TPS7A44 low-dropout (LDO) linear voltage regulator introduces a combination of a 4-V to 65-V input voltage range with very-low quiescent current.

This device can support a wide range of input voltages (for example, a 15-s battery and 24-V to 48-V line power) and withstand line transient voltages up to 85 V. These features help modern applications meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A44 output (OUT) is available in both fixed and adjustable output versions, which can regulate from 1.24 V to 14.5 V at 1% accuracy. The device also provides a second intermediate output (MID_OUT) that can be set to 10 V, 12 V, and 15 V using the MVSEL pins and can be used to bias gate drivers in place of a discrete regulator.

The TPS7A44 features a precision enable input that helps enable or disable 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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類型 標題 日期
* Data sheet TPS7A44 50-mA, 65-V, Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good and Selectable Mid-Output Rail datasheet PDF | HTML 2021年 11月 19日
EVM User's guide TPS7A43EVM-047 EVM User's Guide 2020年 10月 23日

設計與開發

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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
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模擬型號

TPS7A44 PSpice Transient Model (3.3 V)

SBVM983.ZIP (50 KB) - PSpice Model
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模擬型號

TPS7A44 PSpice Transient Model (5 V)

SBVM982.ZIP (55 KB) - PSpice Model
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