Overview
The LD39015M25R, produced by STMicroelectronics, is a low-dropout linear voltage regulator designed for low power battery-powered applications. This device provides a maximum current of 150 mA with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 80 mV. It is stable with ceramic capacitors and features ultra-low dropout voltage, very low quiescent current, and low noise, making it suitable for mobile phones, personal digital assistants (PDAs), cordless phones, and similar battery-powered systems. The regulator includes logic-controlled electronic shutdown, short-circuit constant current limiting, and thermal protection, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | STMicroelectronics | Mounting Style | SMD/SMT |
| Output Voltage | 2.5 V | Output Current | 150 mA |
| Number of Outputs | 1 Output | Polarity | Positive |
| Quiescent Current | 50 µA | Input Voltage, Min | 1.5 V |
| Input Voltage, Max | 5.5 V | Output Type | Fixed |
| Minimum Operating Temperature | -40 °C | Maximum Operating Temperature | +125 °C |
| Dropout Voltage | 80 mV | Series | LD39015 |
| Dropout Voltage - Max | 100 mV | Height | 1.3 mm (Max) |
| Ib - Input Bias Current | 18 µA | Line Regulation | 0.01 %/V |
| Load Regulation | 0.002 %/mA | Product | LDO Voltage Regulators |
| Factory Pack Quantity | 3000 | Type | Low Current Low Noise Regulator |
| Voltage Regulation Accuracy | 2 % | Width | 1.75 mm (Max) |
| Unit Weight | 0.000222 oz |
Key Features
- Input voltage from 1.5 V to 5.5 V
- Ultra low-dropout voltage (80 mV typ. at 100 mA load)
- Very low quiescent current (18 µA typ. at no load, 38 µA typ. at 150 mA load, 1 µA max. in OFF mode)
- Very low noise without bypass capacitor (29 µV RMS at VOUT = 0.8 V)
- Output voltage tolerance: ± 2.0% @ 25 °C
- 150 mA guaranteed output current
- Wide range of output voltages available on request: 0.8 V to 3.3 V with 100 mV step
- Logic-controlled electronic shutdown
- Compatible with ceramic capacitors CO = 1 µF
- Internal current and thermal limit
- Temperature range: -40 °C to 125 °C
Applications
The LD39015M25R is typically used in low power battery-powered applications such as:
- Mobile phones
- Personal digital assistants (PDAs)
- Cordless phones
- Other similar battery-powered systems
Q & A
- What is the maximum output current of the LD39015M25R?
The maximum output current is 150 mA.
- What is the input voltage range for the LD39015M25R?
The input voltage range is from 1.5 V to 5.5 V.
- What is the typical dropout voltage of the LD39015M25R?
The typical dropout voltage is 80 mV at 100 mA load.
- What is the quiescent current of the LD39015M25R?
The quiescent current is 18 µA typical at no load, 38 µA typical at 150 mA load, and 1 µA maximum in OFF mode.
- Does the LD39015M25R have thermal protection?
- What is the operating temperature range of the LD39015M25R?
The operating temperature range is from -40 °C to 125 °C.
- Is the LD39015M25R compatible with ceramic capacitors?
- What is the power supply rejection ratio (PSRR) of the LD39015M25R?
The PSRR is 65 dB at low frequencies and starts rolling off at 10 kHz.
- Does the LD39015M25R have a shutdown mode?
- What is the output voltage tolerance of the LD39015M25R?
The output voltage tolerance is ± 2.0% @ 25 °C.
- What package type is the LD39015M25R available in?
