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線性與低壓差 (LDO) 穩壓器

TPS7A4201

現行

具啟用功能的 50-mA、28-V、低 IQ、可調整低壓降電壓穩壓器

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TPS7A4201

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output Iout (max) (A) 0.05 Vin (max) (V) 28 Vin (min) (V) 7 Vout (max) (V) 26 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 58 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 2.5 Dropout voltage (Vdo) (typ) (mV) 290 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.05 Vin (max) (V) 28 Vin (min) (V) 7 Vout (max) (V) 26 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 58 PSRR at 100 KHz (dB) 38 Iq (typ) (mA) 0.025 Thermal resistance θJA (°C/W) 67 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable 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 28 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: ~1.175 V to 26 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 MSOP-8
    PowerPAD™
  • Operating Temperature Range: –40°C to +125°C
  • Wide Input Voltage Range: 7 V to 28 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: ~1.175 V to 26 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 MSOP-8
    PowerPAD™
  • Operating Temperature Range: –40°C to +125°C

The TPS7A4201 device is a high-voltage-tolerant linear regulator that offers the benefits of a thermally-enhanced package (MSOP-8), and is able to withstand continuous dc or transient input voltages of up to 28 V.

The TPS7A4201 is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 µF (over temperature and tolerance). Therefore, implementations of this device require minimal board space because of its miniaturized packaging (MSOP-8) and a potentially small output capacitor. In addition, the TPS7A4201 offers an enable pin (EN) compatible with standard CMOS logic to enable a low-current shutdown mode.

The TPS7A4201 has an internal thermal shutdown and current limiting to protect the system during fault conditions. The MSOP-8 packages has an operating temperature range of TJ = –40°C to +125°C.

In addition, the TPS7A4201 is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only it can supply a well-regulated voltage rail, but it can also withstand and maintain regulation during fast voltage transients. These features translate to simpler and more cost-effective electrical surge-protection circuitry for a wide range of applications.

The TPS7A4201 device is a high-voltage-tolerant linear regulator that offers the benefits of a thermally-enhanced package (MSOP-8), and is able to withstand continuous dc or transient input voltages of up to 28 V.

The TPS7A4201 is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 µF (over temperature and tolerance). Therefore, implementations of this device require minimal board space because of its miniaturized packaging (MSOP-8) and a potentially small output capacitor. In addition, the TPS7A4201 offers an enable pin (EN) compatible with standard CMOS logic to enable a low-current shutdown mode.

The TPS7A4201 has an internal thermal shutdown and current limiting to protect the system during fault conditions. The MSOP-8 packages has an operating temperature range of TJ = –40°C to +125°C.

In addition, the TPS7A4201 is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only it can supply a well-regulated voltage rail, but it can also withstand and maintain regulation during 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 TPS7A4201 28-V Input Voltage, 50-mA Voltage Regulator datasheet (Rev. A) PDF | HTML 2013年 4月 2日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日

設計與開發

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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

TPS7A4201 PSpice Transient Model (Rev. A)

SBVM106A.ZIP (21 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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Design guide: PDF
電路圖: PDF
參考設計

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This power supply reference design consists of a synchronous-rectification LLC isolated half-bridge associated to a CCM PFC stage. It needs 14V-primary (100mA max.) and 7V-secondary (50mA max.) as bias supply. Thanks to low-profile construction (20mm height), it can be employed in LCD screen (...)
Test report: PDF
電路圖: PDF
參考設計

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The TIDA-00448 reference design is an isolated IGBT gate driver with bipolar gate voltages intended for driving  high power IGBT’s requiring high peak gate current up to 40 A. TI’s NexFET power blocks which scales in this range, with same package, enables single design to be used (...)
Design guide: PDF
電路圖: PDF
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