Overview
The LD39200PUR, produced by STMicroelectronics, is a high-performance, ultra-low dropout linear voltage regulator. This device is designed to provide up to 2 A of maximum current with an input voltage range from 1.25 V to 6.0 V and a typical dropout voltage of 130 mV. It is stable with ceramic capacitors on the output (10 µF) and features a high power supply rejection ratio (PSRR) of 70 dB at 1 kHz. The LD39200PUR includes several protection features such as reverse current protection, short-circuit constant current limit, and thermal protection, making it suitable for a variety of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 1.25 V to 6.0 V |
| Maximum Output Current | 2 A |
| Typical Dropout Voltage | 130 mV at 2 A load |
| Output Voltage Accuracy | 1% at 25 °C, 2% in full temperature range |
| Power Supply Rejection Ratio (PSRR) | 70 dB at 1 kHz |
| Operating Junction Temperature Range | -40 °C to 125 °C |
| Package Types | DFN6 (3 x 3 mm), DFN8 (4 x 4 mm) |
| Shutdown Current | 10 nA (typ.) |
Key Features
- Ultra-low dropout voltage: 130 mV (typ.) at 2 A load
- High PSRR: 70 dB at 1 kHz
- Reverse current protection
- Short-circuit constant current limit
- Thermal protection
- Enable logic control function with shutdown mode
- Power Good flag on a dedicated pin
- Available in fixed and adjustable output voltage versions from 0.5 V with 100 mV step
- Stable with ceramic capacitors on the output (10 µF)
Applications
The LD39200PUR is typically used in various applications including:
- Telecom infrastructure
- Consumer electronics
- Communications equipment
- Computers and peripherals
- Industrial and personal electronics
Q & A
- What is the maximum output current of the LD39200PUR?
The maximum output current of the LD39200PUR is 2 A.
- What is the input voltage range for the LD39200PUR?
The input voltage range for the LD39200PUR is from 1.25 V to 6.0 V.
- What is the typical dropout voltage of the LD39200PUR?
The typical dropout voltage of the LD39200PUR is 130 mV at 2 A load.
- Does the LD39200PUR have thermal protection?
- What is the purpose of the Power Good flag on the LD39200PUR?
The Power Good flag indicates whether the output voltage is within the correct range. It goes to high impedance when the output voltage is higher than 0.92 * V_OUT(nom) and to low impedance when it is below 0.80 * V_OUT(nom).
- Can the output voltage of the LD39200PUR be adjusted?
- What types of packages are available for the LD39200PUR?
The LD39200PUR is available in DFN6 (3 x 3 mm) and DFN8 (4 x 4 mm) packages.
- Does the LD39200PUR have reverse current protection?
- What is the shutdown current consumption of the LD39200PUR?
The shutdown current consumption of the LD39200PUR is typically 10 nA.
- Is the LD39200PUR stable with ceramic capacitors?
