Overview
The TPS73633DBVT is a low-dropout (LDO) linear voltage regulator produced by Texas Instruments. This device utilizes an advanced BiCMOS process to achieve high precision and very low dropout voltages. It features an NMOS pass transistor in a voltage-follower configuration, which allows for stable operation with or without an output capacitor. The TPS73633DBVT is designed for high accuracy and low noise, making it suitable for a variety of applications, including portable devices and systems requiring precise voltage regulation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 1.7 | 5.5 | V | |
| Output Voltage Range (TPS73633) | 3.3 | 3.3 | 3.3 | V |
| Dropout Voltage (IOUT = 400mA) | 75 | mV | ||
| Output Noise Voltage (10Hz to 100kHz, COUT = 10µF) | 30 | µVRMS | ||
| Initial Accuracy | ±0.5% | % | ||
| Overall Accuracy over Line, Load, and Temperature | ±1% | % | ||
| Quiescent Current in Shutdown Mode | <1 | µA | ||
| Thermal Shutdown Temperature | 160 | °C | ||
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Package Type | SOT-23 (DBV) |
Key Features
- Stable with no output capacitor or any value or type of capacitor.
- Ultra-low dropout voltage: 75mV typical.
- Excellent load transient response—with or without optional output capacitor.
- NMOS topology delivers low reverse leakage current.
- Low noise: 30µVRMS typical (10Hz to 100kHz).
- High precision with 0.5% initial accuracy and 1% overall accuracy over line, load, and temperature.
- Less than 1µA maximum quiescent current in shutdown mode.
- Thermal shutdown and specified minimum/maximum current limit protection.
- Available in fixed and adjustable output voltage versions.
Applications
The TPS73633DBVT is suitable for various applications requiring precise voltage regulation, including:
- Portable devices such as smartphones, tablets, and laptops.
- Wireless communication devices.
- Audio and video equipment.
- Medical devices requiring low noise and high accuracy.
- Industrial control systems and automation.
Q & A
- What is the input voltage range of the TPS73633DBVT?
The input voltage range is from 1.7V to 5.5V.
- What is the typical dropout voltage of the TPS73633DBVT?
The typical dropout voltage is 75mV.
- Does the TPS73633DBVT require an output capacitor for stability?
No, the device is stable with or without an output capacitor.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 1µA.
- What are the thermal protection features of the TPS73633DBVT?
The device features thermal shutdown and foldback current limit protection.
- What is the operating junction temperature range of the TPS73633DBVT?
The operating junction temperature range is from -40°C to 125°C.
- What are the available package types for the TPS73633DBVT?
The device is available in SOT-23 (DBV), SOT-223 (DCQ), and VSON (DRB) packages.
- What is the typical output noise voltage of the TPS73633DBVT?
The typical output noise voltage is 30µVRMS (10Hz to 100kHz).
- How accurate is the output voltage of the TPS73633DBVT?
The device has an initial accuracy of ±0.5% and an overall accuracy of ±1% over line, load, and temperature.
- What are some common applications for the TPS73633DBVT?
Common applications include portable devices, wireless communication devices, audio and video equipment, medical devices, and industrial control systems.
