Overview
The TPS74801RGWT is a high-performance, adjustable, low-dropout voltage regulator (LDO) manufactured by Texas Instruments. This device is designed to provide a precision voltage supply for a wide range of applications, particularly those requiring low input voltage and high current output. The TPS74801RGWT is part of the TPS748 series, known for its robust power management capabilities and ease of use.
This LDO regulator offers a user-programmable soft-start feature, which minimizes stress on the input power source by reducing capacitive inrush current during start-up. The device also includes an enable input and a power-good output, allowing for easy sequencing with external regulators. This flexibility makes it suitable for powering various types of processors, ASICs, FPGAs, and DSPs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 1.5 | A |
| Input Voltage Range | 0.8 to 5.5 | V |
| Output Voltage Range | 0.8 to 3.6 | V |
| Dropout Voltage (Typical at 1.5A, VBIAS = 5V) | 60 | mV |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | 20-pin VQFN (RGW) | |
| Package Size | 5mm × 5mm |
Key Features
- Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to 3.6V.
- Ultra-Low Input Voltage Range: The device can operate with input voltages as low as 0.8V and up to 5.5V.
- Programmable Soft-Start: This feature allows for linear voltage start-up, reducing stress on the input power source.
- Power-Good Output: Provides a signal for supply monitoring or sequencing with other supplies.
- Enable Input: Allows for easy control and sequencing of the regulator.
- High Accuracy: Offers 1% accuracy over line, load, and temperature for new chips and 2% for legacy chips.
- Protection Features: Includes overcurrent, overtemperature, short circuit, and undervoltage protection.
- Stable with Any Output Capacitor ≥ 2.2µF: Ensures stability across a range of output capacitors.
Applications
The TPS74801RGWT is versatile and suitable for a broad array of applications, including:
- Powering Sensitive Analog and Mixed-Signal Circuits: Ideal for applications requiring precise voltage regulation in various electronic devices.
- FPGAs, DSPs, and ASICs: The programmable soft-start and sequencing features make it suitable for powering these complex integrated circuits.
- General Power Management: Can be used in a wide variety of power management solutions where low dropout and high current output are required).
Q & A
- What is the maximum output current of the TPS74801RGWT?
The maximum output current is 1.5A.
- What is the input voltage range of the TPS74801RGWT?
The input voltage range is from 0.8V to 5.5V).
- What is the adjustable output voltage range of the TPS74801RGWT?
The output voltage can be adjusted from 0.8V to 3.6V).
- Does the TPS74801RGWT have a programmable soft-start feature?
Yes, it includes a programmable soft-start feature to minimize stress on the input power source during start-up).
- What protection features does the TPS74801RGWT include?
The device includes overcurrent, overtemperature, short circuit, and undervoltage protection).
- What is the package type and size of the TPS74801RGWT?
The device comes in a 20-pin VQFN (RGW) package with a size of 5mm × 5mm).
- What is the operating temperature range of the TPS74801RGWT?
The operating temperature range is from -40°C to 125°C).
- Does the TPS74801RGWT have a power-good output?
Yes, it includes a power-good output for supply monitoring or sequencing with other supplies).
- What is the typical dropout voltage of the TPS74801RGWT at 1.5A and VBIAS = 5V?
The typical dropout voltage is 60 mV).
- Is the TPS74801RGWT stable with any output capacitor ≥ 2.2µF?
Yes, the device is stable with any output capacitor ≥ 2.2µF).
