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.
Part number | Order | 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 | PSRR @ 100 KHz (dB) | Accuracy (%) | Dropout voltage (Vdo) (Typ) (mV) | Iq (Typ) (mA) | Package size: mm2:W x L (PKG) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TPS74901 |
|
Adjustable Output | 3 | 5.5 | 0.8 | 3.6 | 0.8 |
DDPAK/TO-263 | 7
VQFN | 20 VSON | 10 |
Enable
Power Good Soft Start |
1 | -40 to 125 | 34 | 20 | 1.45 | 1ku | Catalog | 28 | 2 | 120 | 3 |
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) |
TPS74201 |
|
Adjustable Output | 1.5 | 5.5 | 0.8 | 3.5 | 0.8 |
DDPAK/TO-263 | 7
VQFN | 20 VQFN | 20 |
Enable
Power Good Soft Start |
1 |
-40 to 125
-40 to 85 |
27 | 13 | 1.80 | 1ku | Catalog | 52 | 1 | 55 | 3 |
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) |
TPS74301 |
|
Adjustable Output
Tracking Output |
1.5 | 5.5 | 0.8 | 3.6 | 0.8 |
DDPAK/TO-263 | 7
VQFN | 20 |
Enable
Power Good |
1 | -40 to 85 | 20 | 20 | 2.00 | 1ku | Catalog | 45 | 1 | 55 | 3 |
7DDPAK/TO-263: 154 mm2: 15.24 x 10.1 (DDPAK/TO-263 | 7)
20VQFN: 25 mm2: 5 x 5 (VQFN | 20) |
TPS74401 |
|
Adjustable Output | 3 | 5.5 | 0.8 | 3.6 | 0.8 |
DDPAK/TO-263 | 7
VQFN | 20 VQFN | 20 |
Enable
Power Good Soft Start |
1 | -40 to 125 | 27 | 13 | 2.50 | 1ku | Catalog | 50 | 1 | 115 | 3 |
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) |
TPS74701 |
|
Adjustable Output | 0.5 | 5.5 | 0.8 | 3.6 | 0.8 |