Overview
The STLQ015M28R, produced by STMicroelectronics, is a 150 mA ultra-low quiescent current linear voltage regulator. This device is designed to operate with an input voltage range from 1.5 V to 5.5 V and provides a fixed output voltage of 2.8 V. The key feature of the STLQ015 is its extremely low quiescent current, which is typically 1.0 µA at no load and 1.4 µA at a 150 mA load. This makes it ideal for applications requiring long standby times and low power consumption. The regulator is stable with a ceramic capacitor on the output and includes features such as logic-controlled electronic shutdown, internal current and thermal limits, and short-circuit protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 1.5 to 5.5 | V |
| Output Voltage (Nominal) | 2.8 | V |
| Output Current (Maximum) | 150 | mA |
| Quiescent Current (Typical) at No Load | 1.0 | µA |
| Quiescent Current (Typical) at 150 mA Load | 1.4 | µA |
| Quiescent Current (Typical) in OFF Mode | 1 | nA |
| Output Voltage Tolerance | ± 2% | - |
| Temperature Range | -40 to 125 | °C |
| Package Type | 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 available (though STLQ015M28R is fixed at 2.8 V)
- Logic-controlled electronic shutdown
- Compatible with ceramic capacitor (COUT = 1 µF)
- Internal current and thermal limits
- Short-circuit constant-current limiting and thermal protection
Applications
- Mobile phones
- Digital still cameras (DSC)
- Battery-powered equipment
- Portable media players
- Portable and battery-powered systems
- Electronic sensors
- Microcontroller power supply
Q & A
- What is the input voltage range of the STLQ015M28R? The input voltage range is from 1.5 V to 5.5 V.
- What is the typical quiescent current of the STLQ015M28R at no load? The typical quiescent current at no load is 1.0 µA.
- What is the maximum output current of the STLQ015M28R? The maximum output current is 150 mA.
- What is the output voltage tolerance of the STLQ015M28R? The output voltage tolerance is ± 2% at 25 °C.
- Is the STLQ015M28R compatible with ceramic capacitors? Yes, it is compatible with ceramic capacitors (COUT = 1 µF).
- What are the temperature limits for the STLQ015M28R? The temperature range is from -40 °C to 125 °C.
- Does the STLQ015M28R have built-in protection features? Yes, it includes short-circuit constant-current limiting and thermal protection.
- How does the enable logic control function work on the STLQ015M28R? The enable logic control function puts the device in shutdown mode, reducing total current consumption to 1 nA.
- What types of applications are the STLQ015M28R typically used in? Typical applications include mobile phones, digital still cameras, battery-powered equipment, and portable media players.
- What is the package type of the STLQ015M28R? The package type is SOT23-5L.
