Overview
The LT1764AEQ-1.8#PBF is a low dropout (LDO) linear voltage regulator produced by Analog Devices Inc. This regulator is optimized for fast transient response and low noise, making it suitable for a variety of high-performance applications. It can supply up to 3A of output current with a fixed output voltage of 1.8V. The device is available in a 6-pin DDPAK package, which is surface mountable, enhancing its usability in compact designs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Voltage | 1.8 | V |
| Output Current | 3 | A |
| Minimum Input Voltage | 2.3 | V (ILOAD = 3A) |
| Dropout Voltage | 340 | mV at 3A |
| Quiescent Current | 40 (Typ) | mA |
| Output Noise (RMS) | 40 | µV (10Hz to 100kHz) |
| Load Regulation | 10 | mV |
| Line Regulation | 8 | mV |
| Thermal Resistance | 30 | °C/W |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | DDPAK (TO-263) | |
| Package Dimensions | 4.57 (H) x 9.4 (W) x 10.54 (L) Max | mm |
Key Features
- Fast transient response to ensure stable output voltage under varying load conditions.
- Low noise operation with 40µV RMS output noise from 10Hz to 100kHz.
- High output current capability of up to 3A.
- Low dropout voltage of 340mV at 3A.
- Current limit, reverse battery protection, reverse current protection, shutdown, and thermal protection features.
- Minimum output capacitor requirement of 10µF to prevent oscillations.
Applications
The LT1764AEQ-1.8#PBF is suitable for various high-performance applications, including:
- Power supplies for digital circuits and microprocessors.
- Post-regulation for switching supplies.
- Low noise power for analog circuits.
- Battery-powered devices requiring stable voltage regulation.
Q & A
- What is the output voltage of the LT1764AEQ-1.8#PBF?
The output voltage is fixed at 1.8V. - What is the maximum output current of the LT1764AEQ-1.8#PBF?
The maximum output current is 3A. - What is the minimum input voltage required for the LT1764AEQ-1.8#PBF?
The minimum input voltage is 2.3V for a 3A load. - What is the dropout voltage of the LT1764AEQ-1.8#PBF at 3A?
The dropout voltage is 340mV at 3A. - What is the typical quiescent current of the LT1764AEQ-1.8#PBF?
The typical quiescent current is 40mA. - What is the output noise of the LT1764AEQ-1.8#PBF?
The output noise is 40µV RMS from 10Hz to 100kHz. - What protection features does the LT1764AEQ-1.8#PBF have?
The device includes current limit, reverse battery protection, reverse current protection, shutdown, and thermal protection. - What is the recommended minimum output capacitor for the LT1764AEQ-1.8#PBF?
A minimum output capacitor of 10µF is recommended to prevent oscillations. - What is the operating temperature range of the LT1764AEQ-1.8#PBF?
The operating temperature range is -40°C to 125°C. - What package type is the LT1764AEQ-1.8#PBF available in?
The device is available in a 6-pin DDPAK (TO-263) package.
