Overview
The TPS73630DBVR is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device is part of the TPS736 series and is known for its high precision and stability. It uses an NMOS pass transistor in a voltage-follower configuration, which allows it to operate without the need for an output capacitor, making it highly versatile. The TPS73630DBVR is designed for applications requiring low noise and high accuracy, such as powering noise-sensitive circuitry like VCOs and point-of-load regulation for DSPs, FPGAs, ASICs, and microprocessors.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 1.7 | 5.5 | V | |
| Output Voltage | 1.2 | 3.0 | 5.0 | V |
| Output Current | 400 | mA | ||
| Dropout Voltage | 75 | mV | ||
| Line Regulation | 0.01 | %/V | ||
| Load Regulation | 0.002 | %/mA | ||
| Output Noise Voltage | 30 | μVRMS (10Hz to 100kHz) | ||
| Enable Pin Voltage | 0 | 1.7 | V | |
| Thermal Shutdown Temperature | 160 | °C | ||
| Operating Junction Temperature | -55 | 150 | °C |
Key Features
- Stable operation with no output capacitor or any value/type of capacitor.
- Ultra-low dropout voltage of 75mV typical.
- Excellent load transient response with or without an optional output capacitor.
- Low noise: 30μVRMS typical (10Hz to 100kHz).
- High accuracy: 0.5% initial accuracy and 1% overall accuracy over line, load, and temperature.
- Low reverse leakage current due to NMOS topology.
- Thermal shutdown and specified min/max current limit protection.
- Noise reduction pin (NR) for additional noise reduction.
- Low quiescent current in shutdown mode (<1μA).
Applications
- Portable, battery-powered equipment.
- Post-regulation for switching supplies.
- Noise-sensitive circuitry such as VCOs.
- Point of load regulation for DSPs, FPGAs, ASICs, and microprocessors.
Q & A
- What is the input voltage range of the TPS73630DBVR?
The input voltage range is from 1.7V to 5.5V. - What is the maximum output current of the TPS73630DBVR?
The maximum output current is 400mA. - Does the TPS73630DBVR require an output capacitor for stability?
No, the TPS73630DBVR does not require an output capacitor for stability. - What is the typical dropout voltage of the TPS73630DBVR?
The typical dropout voltage is 75mV. - How does the noise reduction pin (NR) function?
The noise reduction pin allows for additional reduction of output noise by connecting a noise reduction capacitor from the NR pin to GND. - What is the thermal shutdown temperature of the TPS73630DBVR?
The thermal shutdown temperature is 160°C. - What is the operating junction temperature range of the TPS73630DBVR?
The operating junction temperature range is from -55°C to 150°C. - What are the typical applications of the TPS73630DBVR?
Typical applications include portable, battery-powered equipment, post-regulation for switching supplies, noise-sensitive circuitry, and point of load regulation for DSPs, FPGAs, ASICs, and microprocessors. - How accurate is the output voltage of the TPS73630DBVR?
The output voltage has a 0.5% initial accuracy and 1% overall accuracy over line, load, and temperature. - What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 1μA.
