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線性與低壓差 (LDO) 穩壓器

TPS7A4101

現行

具啟用功能的 50-mA、50-V、低 IQ、可調整低壓降電壓穩壓器

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open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPS7A43 現行 具電源良好與精密啟用功能的 50-mA、85-V、超低 IQ、雙路低壓差電壓穩壓器 Alternative option with wider VIN range and lower IQ.
功能與所比較的裝置相似
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 Wide-input-voltage (40-V) LDO regulator with a higher current rating.

TPS7A4101

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Vin (max) (V) 50 Vin (min) (V) 7 Iout (max) (A) 0.05 Output options Adjustable Output Vout (max) (V) 48 Vout (min) (V) 1.2 Noise (µVrms) 58 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.02 Features Enable Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Accuracy (%) 2.5 Dropout voltage (Vdo) (typ) (mV) 290 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 50 Vin (min) (V) 7 Iout (max) (A) 0.05 Output options Adjustable Output Vout (max) (V) 48 Vout (min) (V) 1.2 Noise (µVrms) 58 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.02 Features Enable Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Accuracy (%) 2.5 Dropout voltage (Vdo) (typ) (mV) 290 Operating temperature range (°C) -40 to 125
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • Wide Input Voltage Range: 7 V to 50 V
  • Accuracy:
    • Nominal: 1%
    • Over Line, Load, and Temperature: 2.5%
  • Low Quiescent Current: 25 µA
  • Quiescent Current at Shutdown: 4.1 µA
  • Maximum Output Current: 50 mA
  • CMOS Logic-Level-Compatible Enable Pin
  • Adjustable Output Voltage: about 1.175 V to 48 V
  • Stable with Ceramic Capacitors:
    • Input Capacitance: ≥ 1 µF
    • Output Capacitance: ≥ 4.7 µF
  • Dropout Voltage: 290 mV
  • Built-In Current Limit and Thermal Shutdown Protection
  • Package: High Thermal Performance HVSSOP-8 PowerPAD™
  • Operating Temperature Range: –40°C to 125°C
  • Wide Input Voltage Range: 7 V to 50 V
  • Accuracy:
    • Nominal: 1%
    • Over Line, Load, and Temperature: 2.5%
  • Low Quiescent Current: 25 µA
  • Quiescent Current at Shutdown: 4.1 µA
  • Maximum Output Current: 50 mA
  • CMOS Logic-Level-Compatible Enable Pin
  • Adjustable Output Voltage: about 1.175 V to 48 V
  • Stable with Ceramic Capacitors:
    • Input Capacitance: ≥ 1 µF
    • Output Capacitance: ≥ 4.7 µF
  • Dropout Voltage: 290 mV
  • Built-In Current Limit and Thermal Shutdown Protection
  • Package: High Thermal Performance HVSSOP-8 PowerPAD™
  • Operating Temperature Range: –40°C to 125°C

The TPS7A4101 is a very high voltage-tolerant linear regulator that offers the benefits of a thermally-enhanced package (HVSSOP-8), and is able to withstand continuous DC or transient input voltages of up to 50 V.

The TPS7A4101 is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 µF (over temperature and tolerance). Thus, implementations of this device require minimal board space because of its miniaturized packaging (HVSSOP-8) and a potentially small output capacitor. In addition, the TPS7A4101 offers an enable pin (EN) compatible with standard CMOS logic, to enable a low-current shutdown mode.

The TPS7A4101 has an internal thermal shutdown and current limiting to protect the system during fault conditions. The HVSSOP-8 packages has an operating temperature range of TJ = –40°C to 125°C.

In addition, the TPS7A4101 is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only can the device supply a well-regulated voltage rail, but the device can also withstand and maintain regulation during very high and fast voltage transients. These features translate to simpler and more cost-effective electrical surge-protection circuitry for a wide range of applications.

The TPS7A4101 is a very high voltage-tolerant linear regulator that offers the benefits of a thermally-enhanced package (HVSSOP-8), and is able to withstand continuous DC or transient input voltages of up to 50 V.

The TPS7A4101 is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 µF (over temperature and tolerance). Thus, implementations of this device require minimal board space because of its miniaturized packaging (HVSSOP-8) and a potentially small output capacitor. In addition, the TPS7A4101 offers an enable pin (EN) compatible with standard CMOS logic, to enable a low-current shutdown mode.

The TPS7A4101 has an internal thermal shutdown and current limiting to protect the system during fault conditions. The HVSSOP-8 packages has an operating temperature range of TJ = –40°C to 125°C.

In addition, the TPS7A4101 is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only can the device supply a well-regulated voltage rail, but the device can also withstand and maintain regulation during very high and fast voltage transients. These features translate to simpler and more cost-effective electrical surge-protection circuitry for a wide range of applications.
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類型 標題 日期
* Data sheet TPS7A4101 50-V Input Voltage, 50-mA, Very High Voltage Linear Regulator datasheet (Rev. B) PDF | HTML 2018年 11月 14日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日

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

TPS7A4001EVM-709 — TPS7A4001 低壓差 (LDO) 線性穩壓器評估模組

The TPS7A4001EVM is a fully assembled and tested circuit for evaluating the TPS7A4001 50mA, 100V input, single output low-dropout linear regulator in a DGN (1.0mm x 1.0mm) package. The TPS7A4001EVM provides an adjustable, regulated output voltage that is factory set to 3.3V.
使用指南: PDF
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模擬型號

TPS7A4101 PSpice Transient Model (Rev. A)

SBVM108A.ZIP (20 KB) - PSpice Model
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參考設計

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Design guide: PDF
電路圖: PDF
參考設計

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此參考設計可為使用 TPS61391 和 TPS7A4101 的幻象電源應用提供 48-V 輸出低雜訊電源供應。TPS61391 為一款將 3.3 V 或 5 V 轉換為 48.5 V 的 700-kHz PWM 升壓轉換器。TPS7A4101 是 50-V 容限輸入及 0.29-V 壓降 LDO，可升壓 48.5 V 降至 48 V，並可將輸出漣波降至最低。此設計在 5-V 輸入下支援 48-V、20-mA 輸出功率。輸出漣波約爲 8.4-mV，對於幻影電源應用而言偏低。
Test report: PDF
電路圖: PDF
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