Single Output LDO, 1.5A, Adj.(0.8 to 3.3V), Any or No Cap, Programmable Soft Start

Single Output LDO, 1.5A, Adj.(0.8 to 3.3V), Any or No Cap, Programmable Soft Start - TPS74201

Recommended alternative parts

  • TPS7A83A  -  The TPS7A83A is 2-A LDO with low-noise (4.4 µVRMS) and low-dropout (200mV) and improved accuracy (0.75%)
  • TPS7A92  -  TPS7A92 is 2A, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)
  • TPS7A8300  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   TPS7A8300 is the next-generation version of this device with lower noise.


The TPS742 series of low-dropout (LDO) linear regulators provide an easy-to-use, robust power-management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors, and the family is fully specified from –40°C to 125°C. The TPS742 devices are offered in a small 5-mm × 5-mm VQFN (RGW) and a small 3.5-mm × 3.5-mm VQFN (RGR) package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK/TO-263 (KTW) package is also available.


  • Input Voltage Range: 0.8 V to 5.5 V
  • Soft-Start (SS) Pin Provides a Linear Start-Up With Ramp Time Set by External Capacitor
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.8 V With External Bias Supply
  • Adjustable Output (0.8 V to 3.6 V)
  • Ultra-Low Dropout: 55 mV at 1.5 A (Typical)
  • Stable With Any or No Output Capacitor
  • Excellent Transient Response
  • Open-Drain Power-Good (VQFN)
  • Active High Enable

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Parametrics Compare all products in Single Channel LDO

Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Operating Temperature Range (C)
TPS74201 TPS74301 TPS74401 TPS74701 TPS74801 TPS74901
1.5    1.5    3    0.5    1.5    3   
Adjustable Output    Adjustable Output
Tracking Output   
Adjustable Output    Adjustable Output    Adjustable Output    Adjustable Output   
0.8    0.8    0.8    0.8    0.8    0.8   
5.5    5.5    5.5    5.5    5.5    5.5   
0.8    0.8    0.8    0.8    0.8    0.8   
3.5    3.6    3.6    3.6    3.6    3.6   
3    3    3    1    1    3   
55    55    115    50    60    120   
1    1    1    2    2    2   
13    20    13    20    20    20   
52    45    50    27    28    28   
Cap Free
Cap Free
Cap Free
Ceramic    Ceramic    Ceramic   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125
-40 to 85   
-40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
10VSON    10VSON
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WEBENCH® Designer TPS74201

  Min   Max Range
Vin  V 0.8 to 5.5V
Vout  V 0.8 to 3.6V
Iout  A ≤ 1.5A
Ambient Temp  °C -40 to 125°C

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