Overview
The TPS70918DRVR from Texas Instruments is part of the TPS709 series of ultra-low quiescent current, low-dropout (LDO) linear regulators. These devices are designed for power-sensitive applications, particularly in battery-powered systems that require minimal idle-state power dissipation. The TPS709 series features a precision band-gap and error amplifier, ensuring 2% accuracy over temperature. With a quiescent current of only 1 µA, these regulators are ideal for always-on systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.7 | 30 | V | |
| Output Voltage Range | 1.2 | 6.5 | V | |
| Maximum Output Current | Internally Limited | mA | ||
| Dropout Voltage (IOUT = 150 mA) | 295 | 1400 | mV | |
| Quiescent Current (IQ) | 1 | µA | ||
| Shutdown Current (ISHUTDOWN) | 150 | nA | ||
| Operating Junction Temperature | -55 | 150 | °C | |
| Storage Temperature | -55 | 150 | °C | |
| Package | WSON (DRV) 6-pin |
Key Features
- Ultra-low quiescent current (IQ): 1 µA
- Reverse current protection
- Low shutdown current (ISHUTDOWN): 150 nA
- Input voltage range: 2.7 V to 30 V
- Supports 200-mA peak output current
- 2% accuracy over temperature
- Available in fixed-output voltages: 1.2 V to 6.5 V
- Thermal shutdown and overcurrent protection
- Packages: SOT-23-5, WSON-6
Applications
- Smoke and heat detectors
- Thermostats
- Motion detectors (PIR, uWave, etc.)
- Cordless power tools
- Appliance battery packs
- Electricity meters
- Water meters
Q & A
- What is the quiescent current of the TPS70918DRVR?
The quiescent current is 1 µA. - What is the input voltage range for the TPS70918DRVR?
The input voltage range is from 2.7 V to 30 V. - What is the maximum output current supported by the TPS70918DRVR?
The device supports up to 200-mA peak output current. - What kind of protection does the TPS70918DRVR offer?
The device offers thermal shutdown, overcurrent protection, and reverse current protection. - How accurate is the output voltage of the TPS70918DRVR over temperature?
The output voltage accuracy is 2% over temperature. - What are the available output voltages for the TPS709 series?
The available fixed-output voltages range from 1.2 V to 6.5 V. - What is the shutdown current when the device is disabled?
The shutdown current is typically 150 nA. - What are the package options for the TPS709 series?
The devices are available in SOT-23-5 and WSON-6 packages. - What is the operating junction temperature range for the TPS70918DRVR?
The operating junction temperature range is from -40°C to 125°C. - What is the purpose of the enable pin on the TPS70918DRVR?
The enable pin (EN) is used to enable or disable the device. Driving the pin high enables the device, while driving it low puts the device into low current shutdown.
