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線性與低壓差 (LDO) 穩壓器

TPS7A19

現行

具有電源良好與啟用功能的 450-mA、40-V、低 IQ、可調整低壓差電壓穩壓器

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產品規格表

TPS7A19

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output Iout (max) (A) 0.45 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 18 Vout (min) (V) 1.5 Iq (typ) (mA) 0.015 Thermal resistance θJA (°C/W) 48 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.45 Vin (max) (V) 40 Vin (min) (V) 4 Vout (max) (V) 18 Vout (min) (V) 1.5 Iq (typ) (mA) 0.015 Thermal resistance θJA (°C/W) 48 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 240 Operating temperature range (°C) -40 to 125
VSON (DRB) 8 9 mm² 3 x 3
  • Wide Input Voltage Range: 4 V to 40 V
  • Adjustable Output Voltage: 1.5 V to 18 V
  • Output Current: 450 mA
  • Low Quiescent Current (IQ): 15 µA
  • Low Dropout Voltage: 450 mV (max) at 400 mA
  • Power Good with Programmable Delay
  • Thermal Shutdown and Overcurrent Protection
  • Stable with Ceramic Output Capacitors:
    • 10 µF to 500 µF for VOUT ≥ 2.5 V
    • 22 µF to 500 µF for VOUT < 2.5 V
  • Operating Temperature: –40°C to +125°C
  • Package: 3-mm × 3-mm SON-8
  • Wide Input Voltage Range: 4 V to 40 V
  • Adjustable Output Voltage: 1.5 V to 18 V
  • Output Current: 450 mA
  • Low Quiescent Current (IQ): 15 µA
  • Low Dropout Voltage: 450 mV (max) at 400 mA
  • Power Good with Programmable Delay
  • Thermal Shutdown and Overcurrent Protection
  • Stable with Ceramic Output Capacitors:
    • 10 µF to 500 µF for VOUT ≥ 2.5 V
    • 22 µF to 500 µF for VOUT < 2.5 V
  • Operating Temperature: –40°C to +125°C
  • Package: 3-mm × 3-mm SON-8

The TPS7A19 is a low-dropout linear regulator (LDO) with a wide input voltage (VIN) range up to 40 V, capable of sourcing high output current (IOUT) up to 450 mA. This voltage regulator is ideal for generating a low-voltage supply from wide input-voltage rails. Not only does the TPS7A19 supply a well-regulated voltage rail, but the device also withstands and maintains regulation during voltage transients by acting as a simple surge protection circuit.

The TPS7A19 consumes only 15 µA of quiescent current (IQ) at light loads, thereby lowering the power consumption for always-on or battery-powered applications.

The TPS7A19 features integrated thermal shutdown and overcurrent protection. The TPS7A19 also offers a power good output (PG) with a programmable delay that indicates when the output voltage is in regulation. This feature is useful for power-rail sequencing functions.

This LDO is available in a small, 3-mm × 3-mm, thermally-enhanced, 8-pin SON package.

The TPS7A19 is a low-dropout linear regulator (LDO) with a wide input voltage (VIN) range up to 40 V, capable of sourcing high output current (IOUT) up to 450 mA. This voltage regulator is ideal for generating a low-voltage supply from wide input-voltage rails. Not only does the TPS7A19 supply a well-regulated voltage rail, but the device also withstands and maintains regulation during voltage transients by acting as a simple surge protection circuit.

The TPS7A19 consumes only 15 µA of quiescent current (IQ) at light loads, thereby lowering the power consumption for always-on or battery-powered applications.

The TPS7A19 features integrated thermal shutdown and overcurrent protection. The TPS7A19 also offers a power good output (PG) with a programmable delay that indicates when the output voltage is in regulation. This feature is useful for power-rail sequencing functions.

This LDO is available in a small, 3-mm × 3-mm, thermally-enhanced, 8-pin SON package.
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類型 標題 日期
* Data sheet TPS7A19 40-V, 450-mA, Wide VIN, Low IQ, Low-Dropout Voltage Regulator with Power Good datasheet (Rev. A) PDF | HTML 2016年 9月 30日
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
EVM User's guide TPS7A19 EVM User's Guide 2016年 6月 20日

設計與開發

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開發板

TPS7A1901EVM-760 — TPS7A19 40V 450mA 低 IQ LDO 線性穩壓器評估模組

The TPS7A1901EVM-760 evaluation module is designed for a typical configuration to evaluate the operation and performance of the TPS7A19 40-V, 450-mA, High-Voltage, Ultra-Low IQ Low-Dropout Regulator.

The EVM circuit board is configured to be a reference design for engineering applications requiring (...)
使用指南: PDF
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模擬型號

TPS7A1901 PSpice Transient Model (Rev. A)

SBVM622A.ZIP (85 KB) - PSpice Model
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模擬型號

TPS7A1901 Unencrypted PSpice Transient Model (Rev. A)

SBVM623A.ZIP (3 KB) - PSpice Model
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參考設計

PMP23146 — 適用伺服器輔助電源且具 GaN 的 45-W 高功率密度主動箝位返馳參考設計

此參考設計是針對最高功率密度設計的 GaN 式 45-W 主動箝位返馳 (ACF)。此電源供應器的設計旨在為伺服器和電信電源供應裝置 (PSU) 提供輔助電源。UCC28782 ACF 控制器和 LMG2610 GaN 半橋用於使用 UCC24612 驅動具有同步整流功能的平面變壓器。此輔助電源設計用途旨在以 PFC 匯流排電壓作為輸入來運作，並產生隔離式 12-V 輸出，可提供 3.7 A 與非隔離式 18-V 輸出，並可供電達 400 mA。主要隔離式 12-V 輸出受到 TPS74800 ORing 控制器的保護。多重 PMP23146 (...)
Test report: PDF
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