Overview
The STLQ015M12R, produced by STMicroelectronics, is an ultra-low quiescent current linear voltage regulator. This device is designed to provide 150 mA of maximum current with an input voltage range from 1.5 V to 5.5 V. It features a typical dropout voltage of 112 mV and is notable for its very low quiescent current, which is 1.4 µA at maximum output current. This regulator is stable with a ceramic capacitor on the output and includes features such as logic-controlled electronic shutdown, short-circuit constant-current limiting, and thermal protection. These characteristics make it ideal for applications requiring long standby times and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 1.5 to 5.5 | V |
| Output Voltage (Nominal) | 1.2 | V |
| Output Voltage Tolerance | ± 2% | - |
| Guaranteed Output Current | 150 | mA |
| Quiescent Current (Typical) | 1.0 µA (no load), 1.4 µA (150 mA load) | µA |
| Shutdown Current (Typical) | 1 nA | nA |
| Dropout Voltage (Typical) | 112 mV | mV |
| Operating Temperature Range | -40 to 125 | °C |
| Package | SOT23-5L | - |
Key Features
- Input voltage range from 1.5 V to 5.5 V
- Very low quiescent current: 1.0 µA (typ.) at no load, 1.4 µA (typ.) at 150 mA load, and 1 nA (typ.) in OFF mode
- Output voltage tolerance: ± 2% at 25 °C
- 150 mA guaranteed output current
- Wide range of output voltages: 0.8 V to 3.3 V in 100 mV steps
- Logic-controlled electronic shutdown
- Compatible with ceramic capacitor (COUT = 1 µF)
- Internal current and thermal limit
- Temperature range: from -40 °C to 125 °C
Applications
- Portable and battery-powered systems
- Electronic sensors
- Microcontroller power supply
- Mobile phones
- Digital still cameras (DSC)
- Battery-powered equipment
- Portable media players
Q & A
- What is the input voltage range of the STLQ015M12R?
The input voltage range is from 1.5 V to 5.5 V.
- What is the typical quiescent current of the STLQ015M12R?
The typical quiescent current is 1.0 µA at no load and 1.4 µA at 150 mA load.
- What is the output voltage tolerance of the STLQ015M12R?
The output voltage tolerance is ± 2% at 25 °C.
- What is the maximum output current of the STLQ015M12R?
The maximum output current is 150 mA.
- How does the enable logic control function work?
The enable logic control function puts the STLQ015M12R in shutdown mode, reducing total current consumption to 1 nA when the enable input is set low.
- What type of capacitor is recommended for the output?
A ceramic capacitor with a capacitance of 1 µF is recommended.
- Does the STLQ015M12R have built-in protection features?
Yes, it includes short-circuit constant-current limiting and thermal protection.
- What is the operating temperature range of the STLQ015M12R?
The operating temperature range is from -40 °C to 125 °C.
- In what package is the STLQ015M12R available?
The STLQ015M12R is available in the SOT23-5L package.
- What are some typical applications for the STLQ015M12R?
Typical applications include portable and battery-powered systems, electronic sensors, microcontroller power supply, mobile phones, digital still cameras, and portable media players.
