Overview
The LP38692SDX-ADJ/NOPB is a low dropout (LDO) CMOS linear regulator produced by Texas Instruments. This regulator is part of the LP38690-ADJ and LP38692-ADJ series, known for their high precision and excellent performance characteristics. It offers a 2.5% precision reference voltage and an extremely low dropout voltage of 450 mV at a 1-A load current with a typical output voltage of 5 V. The regulator is designed to operate over a wide temperature range from -40°C to 125°C, making it suitable for various industrial and automotive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 10 V |
| Output Voltage Range | 1.25 V to 9 V |
| Output Current | 1 A |
| Dropout Voltage | 450 mV at 1 A (typical 5-V out) |
| Adjust Pin Voltage Accuracy | 2.5% (25°C) |
| Off-State Quiescent Current | 1 µA |
| Ground Pin Current | 55 µA (typical) at full load |
| Operating Temperature Range | -40°C to 125°C |
| Package | 6-Pin WSON (NGG) |
Key Features
- Precision (Trimmed) Bandgap Reference
- Low Dropout Voltage: 450 mV at 1 A (typical 5-V out)
- Excellent AC performance with ultralow ESR ceramic output capacitors
- Thermal Overload Protection and Foldback Current Limiting
- Enable (EN) Pin for power management
- Low thermal resistance packages (WSON and SOT-223) for high ambient temperature environments
- PMOS power transistor to keep ground pin current below 100 µA regardless of load current, input voltage, or operating temperature
Applications
The LP38692SDX-ADJ/NOPB is suitable for a variety of applications, including:
- Industrial control systems
- Automotive systems
- Telecommunications equipment
- Medical devices
- Consumer electronics requiring stable and efficient power regulation
Q & A
- What is the input voltage range of the LP38692SDX-ADJ/NOPB?
The input voltage range is from 2.7 V to 10 V.
- What is the output voltage range of the LP38692SDX-ADJ/NOPB?
The output voltage range is from 1.25 V to 9 V.
- What is the typical dropout voltage of the LP38692SDX-ADJ/NOPB?
The typical dropout voltage is 450 mV at 1 A with a 5-V output.
- What is the accuracy of the adjust pin voltage?
The adjust pin voltage accuracy is 2.5% at 25°C.
- Does the LP38692SDX-ADJ/NOPB have thermal protection features?
Yes, it includes thermal overload protection and foldback current limiting.
- What is the operating temperature range of the LP38692SDX-ADJ/NOPB?
The operating temperature range is from -40°C to 125°C.
- What package options are available for the LP38692SDX-ADJ/NOPB?
It is available in 5-Pin SOT-223 and 6-Pin WSON packages.
- Does the LP38692SDX-ADJ/NOPB have an enable pin?
Yes, it includes an enable (EN) pin for power management.
- What type of power transistor is used in the LP38692SDX-ADJ/NOPB?
It uses a PMOS power transistor.
- What is the ground pin current of the LP38692SDX-ADJ/NOPB?
The ground pin current is typically 55 µA at full load.
