TPS74901 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

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

Parametrics Compare all products in Linear regulators (LDO)


Output Options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Package Group
Features
Regulated Outputs (#)
Operating Temperature Range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. Price (US$)
Rating
Output Capacitor Type
PSRR @ 100KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package Size: mm2:W x L (PKG)

TPS74901	TPS74201	TPS74301	TPS74401	TPS74701	TPS74801
Adjustable Output	Adjustable Output	Adjustable Output Tracking Output	Adjustable Output	Adjustable Output	Adjustable Output
3	1.5	1.5	3	0.5	1.5
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
0.8	0.8	0.8	0.8	0.8	0.8
DDPAK/TO-263 \| 7 VQFN \| 20 VSON \| 10	DDPAK/TO-263 \| 7 VQFN \| 20 VQFN \| 20	DDPAK/TO-263 \| 7 VQFN \| 20	DDPAK/TO-263 \| 7 VQFN \| 20 VQFN \| 20	VSON \| 10	VQFN \| 20 VSON \| 10
Enable Power Good Soft Start	Enable Power Good Soft Start	Enable Power Good	Enable Power Good Soft Start	Enable Power Good Soft Start	Enable Power Good Soft Start
1	1	1	1	1	1
-40 to 125	-40 to 125 -40 to 85	-40 to 85	-40 to 125	-40 to 125	-40 to 125
34	27	20	27	42	36
20	13	20	13	20	20
1.45 \| 1ku	1.80 \| 1ku	2.00 \| 1ku	2.50 \| 1ku	0.80 \| 1ku	0.80 \| 1ku
Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Ceramic	Cap Free Ceramic	Cap Free Ceramic	Cap Free Ceramic	Ceramic	Ceramic
28	52	45	50	27	28
2	1	1	1	2	2
120	55	55	115	50	60
3	3	3	3	1	1
7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 \| 7) 20VQFN: 25 mm2: 5 x 5 (VQFN \| 20) 10VSON: 9 mm2: 3 x 3 (VSON \| 10)	7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 \| 7) 20VQFN: 12 mm2: 3.5 x 3.5 (VQFN \| 20) 20VQFN: 25 mm2: 5 x 5 (VQFN \| 20)	7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 \| 7) 20VQFN: 25 mm2: 5 x 5 (VQFN \| 20)	7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 \| 7) 20VQFN: 12 mm2: 3.5 x 3.5 (VQFN \| 20) 20VQFN: 25 mm2: 5 x 5 (VQFN \| 20)	10VSON: 9 mm2: 3 x 3 (VSON \| 10)	20VQFN: 25 mm2: 5 x 5 (VQFN \| 20) 10VSON: 9 mm2: 3 x 3 (VSON \| 10)
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