TPS74901

TO-263 (KTW)

7

154 mm² 10.1 x 15.24

VQFN (RGW)

20

25 mm² 5.0 x 5.0

VQFN (RGW)

20

25 mm² 5 x 5

VSON (DRC)

10

9 mm² 3 x 3

V_OUT Range: 0.8 V to 3.6 V
Ultralow V_IN Range: 0.8 V to 5.5 V
V_BIAS 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
V_BIAS Permits Low V_IN 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

V_OUT Range: 0.8 V to 3.6 V
Ultralow V_IN Range: 0.8 V to 5.5 V
V_BIAS 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
V_BIAS Permits Low V_IN 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

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.

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.

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Technical documentation

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	Type	Title	Date
*	Data sheet	TPS74901 3-A Low Dropout Linear Regulator With Programmable Soft-Start datasheet (Rev. I)	03 May 2016
	Technical article	3 quiescent-current (Iq) specifications you need to understand	12 Nov 2021
	Application note	LDO Noise Demystified (Rev. B)	18 Aug 2020
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)	27 Jun 2019
	Selection guide	Low Dropout Regulators Quick Reference Guide (Rev. P)	21 Mar 2018
	Application note	LDO PSRR Measurement Simplified (Rev. A)	09 Aug 2017
	Analog design journal	Q2 2009 Issue Analog Applications Journal	01 May 2009
	Analog design journal	Taming linear-regulator inrush currents	01 May 2009
	User guide	TPS74901EVM-210 (Rev. B)	24 Jul 2008
	User guide	TPS74901EVM-210	14 Apr 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS74901EVM-210 — TPS74901EVM-210 Evaluation Module

The TPS74901EVM-210 facilitates evaluation of the TPS74901 low-dropout linear regulator IC.

These regulators require a low-power bias voltage, VBIAS, and a power input voltage, VIN. The regulator is capable of providing output voltages down to 0.8 V, output currents up to 3 A and has an (...)

User guide

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Simulation model

TPS74901 Unencrypted PSpice Transient Model

SBVM634.ZIP (3 KB) - PSpice Model

Simulation model

TPS74901 PSpice Transient Model (Rev. B)

SLIM031B.ZIP (60 KB) - PSpice Model

Simulation model

TPS74901 TINA-TI Transient Spice Model

SLIM256.ZIP (35 KB) - TINA-TI Spice Model

Simulation model

TPS74901 TINA-TI Transient Reference Design

SLIM257.TSC (94 KB) - TINA-TI Spice Model

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