Overview
The TPS76338DBVR is a low-power, 150-mA, low-dropout linear voltage regulator produced by Texas Instruments. This device is part of the TPS763xx family, which is known for its low-dropout voltage, low-power operation, and compact packaging. The TPS76338DBVR is designed to provide a regulated output voltage with minimal dropout, making it ideal for applications where space and power efficiency are critical.
The regulator features a PMOS pass element, which significantly reduces dropout voltage and supply current compared to traditional PNP pass element designs. This results in a lower quiescent current and improved efficiency, especially in portable systems such as laptops and cellular phones.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Part Number | TPS76338DBVR | |
| Package Type | SOT-23 (DBV) | |
| Pin Count | 5 | |
| Output Current (Max) | 150 mA | A |
| Quiescent Current (Typ) | 0.08 mA | mA |
| Dropout Voltage (Typ) | 375 mV | mV |
| Output Voltage Options | Fixed: 1.6, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 3.8, 5 V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Input Voltage Range | 2.7 V to 10 V | V |
| Thermal Resistance (θJA) | 205 °C/W | °C/W |
| PSRR @ 100KHz | 41 dB | dB |
| Noise | 140 µVrms | µVrms |
| RoHS Compliance | Yes |
Key Features
- Low Dropout Voltage: Typically 300 mV at 150 mA of load current, ensuring efficient voltage regulation.
- Low Quiescent Current: Less than 2 µA in shutdown mode and 140 µA maximum in active mode.
- Thermal Protection: Automatic shutdown if the junction temperature exceeds 165°C, with recovery when the temperature drops below 140°C.
- Current Limitation: Internal current limiting to prevent damage from excessive output current.
- Enable Feature: Logic-enabled sleep mode to shut down the regulator, reducing quiescent current to less than 2 µA.
- Compact Packaging: 5-pin SOT-23 package, ideal for space-constrained designs.
- Wide Operating Temperature Range: -40°C to 125°C, making it suitable for various environmental conditions.
Applications
- Portable Systems: Laptops, cellular phones, and other battery-powered devices where low power consumption is crucial.
- Electricity Meters: For precise voltage regulation in metering applications.
- Solar Inverters: To ensure stable voltage output in solar power systems.
- HVAC Systems: For reliable voltage regulation in heating, ventilation, and air conditioning systems.
- Servo Drives and Motion Control: To provide stable voltage for servo motors and motion control systems.
- Sensor Transmitters: For accurate and reliable voltage supply to sensor systems.
Q & A
- What is the maximum output current of the TPS76338DBVR?
The maximum output current is 150 mA.
- What is the typical dropout voltage of the TPS76338DBVR?
The typical dropout voltage is 375 mV.
- What is the operating temperature range of the TPS76338DBVR?
The operating temperature range is -40°C to 125°C.
- Does the TPS76338DBVR have thermal protection?
Yes, it features thermal protection that shuts down the regulator if the junction temperature exceeds 165°C.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 2 µA.
- What package type does the TPS76338DBVR use?
The TPS76338DBVR uses a 5-pin SOT-23 (DBV) package.
- Is the TPS76338DBVR RoHS compliant?
Yes, the TPS76338DBVR is RoHS compliant.
- What are the fixed output voltage options available for the TPS76338DBVR?
The fixed output voltage options are 1.6, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 3.8, and 5 V.
- Does the TPS76338DBVR have an enable feature?
Yes, it has a logic-enabled sleep mode to shut down the regulator.
- What is the typical noise level of the TPS76338DBVR?
The typical noise level is 140 µVrms.
