Overview
The TPS74801RGWR is a 1.5-A low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is designed to provide a robust power management solution for a wide variety of applications. It features a user-programmable soft-start, which minimizes stress on the input power source by reducing capacitive inrush current on start-up. The regulator includes an enable input and a power-good output, allowing for easy sequencing with external regulators. This makes it suitable for powering processors, ASICs, FPGAs, DSPs, and other applications with specific start-up requirements.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Output Options | Adjustable Output | Maximum Continuous Drain Current (A) | 1.5 |
| Vin (max) (V) | 5.5 | Vin (min) (V) | 0.8 |
| Vout (max) (V) | 3.6 | Vout (min) (V) | 0.8 |
| Noise (µVrms) | 20 | Iq (typ) (mA) | 1 |
| Thermal Resistance θJA (°C/W) | 36 | Rating | Catalog |
| Load Capacitance (min) (µF) | 2.2 | Regulated Outputs (#) | 1 |
| Operating Temperature Range (°C) | -40 to 125 | Dropout Voltage (Vdo) (typ) (mV) | 60 |
| PSRR at 100 KHz (dB) | 28 | Accuracy (%) | 1% (new chip), 2% (legacy chip) |
Key Features
- VOUT range: 0.8V to 3.6V
- Ultra-low VIN range: 0.8V to 5.5V
- VBIAS range: 2.7V to 5.5V
- Low dropout: 60 mV typical at 1.5A, VBIAS = 5V
- Power-good (PG) output for supply monitoring or sequencing signal
- Programmable soft-start for linear voltage start-up
- Stable with any output capacitor ≥ 2.2µF
- Compact design available in 3mm × 3mm VSON-10 and 5mm × 5mm VQFN-20 packages
- Fault-tolerant design for reliable operation
- Accurate regulation over a wide temperature range
Applications
The TPS74801RGWR is suitable for various applications where a stable and regulated power supply is required. These include:
- Communication equipment
- Industrial control systems
- Instrumentation
- Consumer electronics
- Networking equipment
- Automotive systems
- Powering processors, ASICs, FPGAs, and DSPs
Q & A
- What is the maximum continuous drain current of the TPS74801RGWR?
The maximum continuous drain current is 1.5 A.
- What is the input voltage range of the TPS74801RGWR?
The input voltage range is from 0.8 V to 5.5 V.
- What is the output voltage range of the TPS74801RGWR?
The output voltage range is from 0.8 V to 3.6 V.
- What is the typical dropout voltage of the TPS74801RGWR?
The typical dropout voltage is 60 mV at 1.5 A with VBIAS = 5 V.
- Does the TPS74801RGWR have a power-good output?
- What is the minimum load capacitance required for the TPS74801RGWR?
The minimum load capacitance is 2.2 µF.
- What are the available package options for the TPS74801RGWR?
The device is available in 3mm × 3mm VSON-10 and 5mm × 5mm VQFN-20 packages.
- What is the operating temperature range of the TPS74801RGWR?
The operating temperature range is from -40°C to 125°C.
- Does the TPS74801RGWR support programmable soft-start?
- What is the accuracy of the TPS74801RGWR over line, load, and temperature?
The accuracy is 1% for new chips and 2% for legacy chips.
