TITPS79325DBVR
Overview
The TPS79325DBVR is a low-dropout (LDO) linear regulator from Texas Instruments designed for noise-sensitive RF and analog applications. It provides a fixed 2.5V output at up to 200mA with a high power-supply rejection ratio (PSRR) and very low noise performance. The device is housed in a compact 5-pin SOT-23 package and includes an active-high enable pin for power sequencing.
Why Choose This Part
This regulator features an excellent PSRR of 70dB at 100Hz, effectively filtering input ripple from switching supplies. It is stable with small 2.2uF ceramic output capacitors and offers a wide operating junction temperature range from -40C to 125C. The high-speed transient response ensures stable voltage regulation during sudden changes in load or line conditions.
Applications
Key Specifications
Getting Started
To implement this LDO, place a 2.2uF ceramic capacitor close to the VOUT pin and a 0.1uF to 1uF capacitor at the VIN pin for stability. Ensure the EN pin is pulled high to VDD for normal operation or low to enter a 1uA shutdown mode. For thermal management, maximize the copper area connected to the GND pin to help dissipate heat in high-dropout or high-current scenarios.
TPS79325 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | PSRR | Protection Features | Temp Range | Current - Quiescent (Iq) | Stock |
|---|---|---|---|---|---|
| TPS79325DBVR (this part) | 100Hz | Over Current, Over.. | -40degC ~ 150degC | 220 uA | 20,835 |
| TPS79325DBVRQ1 | 100Hz | Over Current, Over.. | -40degC ~ 125degC | 220 uA | 6,807 |
| TPS79325DBVRM3 | — | Over Current, Over.. | -40degC ~ 125degC .. | 1 mA | 3,000 |
| TPS79325DBVRM3Q1 | 100Hz | Over Current, Over.. | -40degC ~ 125degC .. | 1 mA | 3,000 |
