Overview
The TPS76316DBVT is a low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to offer low-dropout voltage, low-power operation, and miniaturized packaging. This regulator is part of the TPS763xx family and is ideal for cost-sensitive designs and applications where board space is limited. It features a PMOS pass element, which significantly reduces dropout voltage and quiescent current compared to conventional PNP pass element LDO regulators. The device is particularly suited for battery-operated equipment, such as laptops, cellular phones, and other portable systems, enhancing system battery operating life.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 150 mA | - |
| Dropout Voltage | Typically 300 mV at 150 mA | mV |
| Output Voltage | 1.6 V (fixed) | V |
| Quiescent Current | Less than 2 µA in shutdown mode, 140 µA maximum in operation | µA |
| Operating Junction Temperature Range | -40°C to 125°C | °C |
| Package | 5-pin SOT-23 (DBV) | - |
| Enable Input | Active-high digital control | - |
| Thermal Protection | Shuts down at 165°C, recovers at 140°C | °C |
| Overcurrent Limitation | Approximately 800 mA | mA |
Key Features
- Low dropout voltage: Typically 300 mV at 150 mA
- Low quiescent current: Less than 2 µA in shutdown mode, 140 µA maximum in operation
- Thermal protection: Shuts down at 165°C, recovers at 140°C
- Overcurrent limitation: Approximately 800 mA
- Logic-enabled sleep mode: Reduces quiescent current to less than 2 µA
- Miniaturized packaging: 5-pin SOT-23 (DBV) package
- Wide operating junction temperature range: -40°C to 125°C
Applications
- Battery-operated equipment: Laptops, cellular phones, and other portable systems
- Electricity meters
- Solar inverters
- HVAC systems
- Servo drives and motion control
- Sensor transmitters
- RF applications: VCOs, receivers, ADCs
- Bluetooth® devices
Q & A
- What is the typical dropout voltage of the TPS76316DBVT?
The typical dropout voltage is 300 mV at 150 mA of load current.
- What is the maximum output current of the TPS76316DBVT?
The maximum output current is 150 mA.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 2 µA.
- What is the operating junction temperature range of the TPS76316DBVT?
The operating junction temperature range is -40°C to 125°C.
- What type of package does the TPS76316DBVT come in?
The device comes in a 5-pin SOT-23 (DBV) package.
- Does the TPS76316DBVT have thermal protection?
- What is the purpose of the enable input on the TPS76316DBVT?
The enable input is an active-high digital control that enables the LDO when the enable voltage is past the rising threshold and disables it when below the falling threshold.
- What are some common applications for the TPS76316DBVT?
- How does the PMOS pass element in the TPS76316DBVT improve performance?
The PMOS pass element reduces both dropout voltage and supply current compared to conventional PNP pass element LDO designs, and it does not require increased drive current as output current increases.
- What is the overcurrent limitation of the TPS76316DBVT?
The device limits output current to approximately 800 mA to prevent gross device failure.
