TPS74901
TPS74901 is 3-A Low Dropout Linear Regulator manufactured by Texas Instruments.
Features
- 1 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 m V (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
2 Applications
- FPGA Applications
- DSP Core and I/O Voltages
- Servers
- Post-Regulation Applications
- Applications with Special Start-Up Time or
Sequencing Requirements SPACE
Typical Application Circuit (Adjustable)
VIN VBIAS
CIN CBIAS
IN PG
BIAS EN TPS74901 OUT
SS CSS
R3 R1 R2
VOUT COUT
3 Description
The TPS74901 low-dropout (LDO) linear regulator provides an easy-to-use, robust power management solution for a wide variety of applications. Userprogrammable soft-start minimizes stress on the input power source by reducing capacitive inrush current during start-up. The soft-start is monotonic and wellsuited for powering many different types of processors and ASICs. The enable input and powergood output allow easy sequencing with external regulators. This plete 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 pact total solution size. The device is also available in a DDPAK-7 package.
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