Single Output LDO, 3.0A, Adj. (0.8 to 3.6V), Programmable Soft-Start - TPS74901

TPS74901 (ACTIVE)

Single Output LDO, 3.0A, Adj. (0.8 to 3.6V), Programmable Soft-Start

 

Recommended alternative parts

  • TPS7A84  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   TPS7A84 is the next-generation version of this device with lower noise.

Description

The TPS74901 low-dropout (LDO) linear regulator provides 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 during 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 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor ≥ 2.2 µF, and the device is fully specified from –40°C to 125°C. The TPS74901 is offered in a small (3 mm × 3 mm) VSON package and a small (5-mm × 5-mm) VQFN package, yielding a highly compact total solution size. The device is also available in a DDPAK-7 package.

Features

  • VOUT Range: 0.8 V to 3.6 V
  • Ultralow VIN Range: 0.8 V to 5.5 V
  • VBIAS Range: 2.7 V to 5.5 V
  • Low Dropout: 120 mV (Typical) at 3 A
  • Power-Good (PG) Output Allows Supply Monitoring or Provides a Sequencing Signal for Other Supplies
  • 2% Accuracy Over Line, Load, and Temperature
  • Adjustable Start-Up In-Rush Control
  • VBIAS Permits Low VIN Operation With Good Transient Response
  • Stable with Any Output Capacitor ≥ 2.2 µF
  • Packages:
    • Small, 3-mm × 3-mm × 1-mm VSON
    • 5-mm × 5-mm × 1-mm VQFN and DDPAK-7
  • 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
Rating
Operating Temperature Range (C)
Pin/Package
TPS74901 TPS74201 TPS74301 TPS74401 TPS74701 TPS74801
3    1.5    1.5    3    0.5    1.5   
Adjustable Output    Adjustable Output    Adjustable Output
Tracking 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   
3.6    3.5    3.6    3.6    3.6    3.6   
3    3    3    3    1    1   
120    55    55    115    50    60   
2    1    1    1    2    2   
20    13    20    13    20    20   
28    52    45    50    27    28   
Ceramic    Cap Free
Ceramic   
Cap Free
Ceramic   
Cap Free
Ceramic   
Ceramic    Ceramic   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125
-40 to 85   
-40 to 85    -40 to 125    -40 to 125    -40 to 125   
10VSON
20VQFN
7DDPAK/TO-263   
20VQFN
20VQFN
7DDPAK/TO-263   
20VQFN
7DDPAK/TO-263   
20VQFN
20VQFN
7DDPAK/TO-263   
10VSON    10VSON
20VQFN   
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WEBENCH® Designer TPS74901

  Min   Max Range
Vin  V 0.8 to 5.5V
Vout  V 0.8 to 3.6V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C


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