Overview
The TPS76330DBVT is a low-power, 150-mA, low-dropout linear voltage regulator produced by Texas Instruments. This device is part of the TPS763xx family, which offers the benefits of low-dropout voltage, low-power operation, and miniaturized packaging. The regulator is designed using a PMOS pass element, which significantly reduces dropout voltage and quiescent current compared to conventional LDO regulators. This makes it ideal for cost-sensitive designs and applications where board space is limited, such as in portable systems like laptops and cellular phones.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3V (fixed), 1.5V to 6.5V (variable) | V |
| Output Current | 150 mA | mA |
| Dropout Voltage | Typically 300 mV at 150 mA | mV |
| Quiescent Current | Less than 2 µA in shutdown, 140 µA maximum in operation | µA |
| Operating Junction Temperature Range | -40°C to 125°C | °C |
| Package | 5-pin SOT-23 (DBV) | |
| Input Voltage Range | 2.7V to 10V | V |
Key Features
- Low dropout voltage, typically 300 mV at 150 mA
- Low quiescent current, less than 2 µA in shutdown and 140 µA maximum in operation
- Thermal protection and overcurrent limitation
- Logic-enabled sleep mode to reduce quiescent current to 1 µA maximum at TJ = 25°C
- Available in fixed voltage versions (1.6V, 1.8V, 2.5V, 2.7V, 2.8V, 3V, 3.3V, 3.8V, 5V) and a variable version (programmable over the range of 1.5V to 6.5V)
- Miniaturized 5-pin SOT-23 (DBV) package
Applications
- Electricity meters
- Solar inverters
- HVAC systems
- Servo drives and motion control
- Sensor transmitters
- Portable systems such as laptops and cellular phones
Q & A
- What is the typical dropout voltage of the TPS76330DBVT at 150 mA?
The typical dropout voltage is 300 mV at 150 mA.
- What is the quiescent current in shutdown mode?
The quiescent current is less than 2 µA in shutdown mode.
- What is the operating junction temperature range of the TPS76330DBVT?
The operating junction temperature range is -40°C to 125°C.
- What types of voltage versions are available for the TPS763xx family?
The TPS763xx family is available in fixed voltage versions (1.6V, 1.8V, 2.5V, 2.7V, 2.8V, 3V, 3.3V, 3.8V, 5V) and a variable version (programmable over the range of 1.5V to 6.5V).
- What is the package type of the TPS76330DBVT?
The package type is a 5-pin SOT-23 (DBV).
- What are the key protection features of the TPS76330DBVT?
The key protection features include thermal protection and overcurrent limitation.
- How does the enable feature work on the TPS76330DBVT?
The enable signal is an active-high digital control that enables the LDO when the enable voltage is past the rising threshold and disables the LDO when the enable voltage is below the falling threshold.
- What are some common applications for the TPS76330DBVT?
Common applications include electricity meters, solar inverters, HVAC systems, servo drives and motion control, sensor transmitters, and portable systems like laptops and cellular phones.
- What is the input voltage range for the TPS76330DBVT?
The input voltage range is from 2.7V to 10V.
- How does the PMOS pass element improve the performance of the TPS76330DBVT?
The PMOS pass element reduces dropout voltage and quiescent current, behaving as a low-value resistor and maintaining a stable quiescent current over the entire range of output load current.
