Overview
The STLQ015M33R is a 150 mA, ultra-low quiescent current linear voltage regulator produced by STMicroelectronics. This device is characterized by its low power consumption, making it ideal for battery-powered and portable applications. It operates with an input voltage range from 1.5 V to 5.5 V and provides a regulated output voltage of 3.3 V with a typical dropout voltage of 112 mV. The STLQ015M33R is stable with a ceramic capacitor on the output and features an enable logic control function that reduces total current consumption to 1 nA in shutdown mode. It also includes short-circuit constant-current limiting and thermal protection, ensuring reliable operation in various conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 1.5 to 5.5 | V |
| Output Voltage (nominal) | 3.3 | V |
| Output Voltage Tolerance | ± 2% | - |
| Guaranteed Output Current | 150 | mA |
| Quiescent Current (typ.) at no load | 1.0 | µA |
| Quiescent Current (typ.) at 150 mA load | 1.4 | µA |
| Shutdown Current (typ.) | 1 | nA |
| Temperature Range | -40 to 125 | °C |
| Dropout Voltage (typ.) | 112 | mV |
| Enable Input Logic Levels | Low: 0.4 V, High: 0.7 V | - |
Key Features
- Ultra-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.
- Logic-controlled electronic shutdown.
- Compatible with ceramic capacitor (COUT = 1 µF).
- Internal current and thermal limit.
- Wide range of output voltages: 0.8 V to 3.3 V in 100 mV steps.
- Short-circuit constant-current limiting and thermal protection.
- Operating temperature range: -40 °C to 125 °C.
Applications
- Portable and battery-powered systems.
- Electronic sensors.
- Microcontroller power supply.
- Mobile phones.
- Digital still cameras (DSC).
- Portable media players.
- Battery-powered equipment.
Q & A
- What is the input voltage range of the STLQ015M33R?
The input voltage range is from 1.5 V to 5.5 V.
- What is the typical quiescent current of the STLQ015M33R at no load?
The typical quiescent current at no load is 1.0 µA.
- What is the maximum guaranteed output current of the STLQ015M33R?
The maximum guaranteed output current is 150 mA.
- What is the output voltage tolerance of the STLQ015M33R?
The output voltage tolerance is ± 2% at 25 °C.
- Does the STLQ015M33R have thermal protection?
- What is the typical dropout voltage of the STLQ015M33R?
The typical dropout voltage is 112 mV.
- How does the enable logic control function work?
The enable logic control function puts the device in shutdown mode when the enable input is set low, reducing total current consumption to 1 nA.
- What type of capacitor is recommended for the output of the STLQ015M33R?
A ceramic capacitor with a capacitance of 1 µF is recommended.
- What is the operating temperature range of the STLQ015M33R?
The operating temperature range is from -40 °C to 125 °C.
- What are some typical applications of the STLQ015M33R?
Typical applications include portable and battery-powered systems, electronic sensors, microcontroller power supply, mobile phones, digital still cameras, and portable media players.
