Overview
The TPS73125DBVR is a low-dropout (LDO) voltage regulator produced by Texas Instruments. Designed for applications requiring a stable and reliable power supply, this component is part of TI's TPS731 series of LDO regulators. It is specifically tailored for use in portable devices, IoT applications, and other low-power systems. The TPS73125DBVR stands out for its ultra-low quiescent current, high PSRR (Power Supply Rejection Ratio), and compact SOT-23 package, making it an ideal choice for space-constrained designs. Its target user groups include engineers and designers working on battery-powered devices, embedded systems, and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 2.5 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 110 | mV | At 150 mA |
| Quiescent Current | 16 | µA | Typical |
| PSRR | 70 | dB | At 1 kHz |
| Operating Temperature | -40 to +125 | °C | Range |
| Package | SOT-23-5 | - | DBV |
| Input Voltage Range | 2.7 to 5.5 | V | Operating |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.1 | %/mA | Typical |
Key Features
- Ultra-Low Quiescent Current: Ensures minimal power consumption, making it suitable for battery-powered devices.
- High PSRR: Provides excellent noise rejection, ensuring stable output in noisy environments.
- Low Dropout Voltage: Enables operation with very low input-to-output voltage differentials.
- Thermal Shutdown and Current Limit Protection: Enhances reliability by protecting the device from overheating and overcurrent conditions.
- Compact SOT-23 Package: Ideal for space-constrained applications.
Applications
The TPS73125DBVR is widely used in various applications, including:
- Portable Devices: Smartphones, tablets, and wearable devices benefit from its low power consumption and compact size.
- IoT Devices: Sensors and communication modules require stable power supplies, which this LDO provides efficiently.
- Embedded Systems: Microcontrollers and other ICs in embedded systems rely on its reliable voltage regulation.
- Consumer Electronics: Devices such as digital cameras and audio players utilize its high performance and small footprint.
Q & A
1. What is the output voltage of the TPS73125DBVR?
The output voltage is fixed at 2.5 V.
2. What is the maximum output current it can handle?
The maximum output current is 150 mA.
3. What is the dropout voltage at full load?
The dropout voltage is 110 mV at 150 mA.
4. How low is the quiescent current?
The typical quiescent current is 16 µA.
5. What is the PSRR of this LDO?
The PSRR is 70 dB at 1 kHz.
6. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
7. What package does the TPS73125DBVR come in?
It comes in a SOT-23-5 (DBV) package.
8. What is the input voltage range?
The input voltage range is 2.7 V to 5.5 V.
9. Does it have any protection features?
Yes, it includes thermal shutdown and current limit protection.
10. Is this LDO suitable for battery-powered devices?
Yes, its ultra-low quiescent current and low dropout voltage make it ideal for battery-powered applications.
