TPS5401 3.5V 至 42V 输入、0.5A 降压转换器 | 德州仪器

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3.5V 至 42V 输入、0.5A 降压转换器

3.5V 至 42V 输入、0.5A 降压转换器 - TPS5401


The TPS5401 device is a 42-V, 0.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the supply current to 116 µA when outputting regulated voltage with no load. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size optimization. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS5401 is available in a 10-pin thermally enhanced MSOP PowerPAD package.


  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With a Pulse-
    Skipping Eco-mode™ Control Scheme
  • 116-µA Operating Quiescent Current
  • 1.3-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power-Good Output
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8-V ±3.5% Internal Voltage Reference
  • MSOP10 With PowerPAD Package
  • Supported by WEBENCH
    • 12-V and 24-V Industrial and Commercial
      Low-Power Systems
    • E-Meters

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WEBENCH® Designer TPS5401

  最小   最大 范围
输入电压  V 3.5 to 42.0V
输出电压  V 0.8 to 39V
输出电流  A ≤ 0.5A
环境温度  °C -40 to 150°C


与其它产品相比 降压转换器(集成开关) 邮件 下载到电子表格中
Part number 立即下单 Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS5401 立即下单 3.5     42     0.8     39     0.5     1     100     2500     0.116     Enable
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Power Good
UVLO Adjustable    
Current Mode     98     -40 to 150     Catalog     HVSSOP | 10     Converter     10HVSSOP: 15 mm2: 4.9 x 3 (HVSSOP | 10)