Overview
The LT1963AEQ#PBF is a low dropout (LDO) voltage regulator produced by Analog Devices Inc. This regulator is part of the LT1963A series, which is optimized for fast transient response and low noise. It is capable of supplying up to 1.5A of output current, making it suitable for a variety of high-current applications. The device features adjustable output voltages ranging from 1.21V to 20V and fixed output voltages of 1.5V, 1.8V, 2.5V, and 3.3V. The LT1963AEQ#PBF is available in several package types, including the 5-Lead TO-263 (D²Pak) package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Current | 1.5A | A |
| Dropout Voltage | 340mV @ 1.5A | mV |
| Input Voltage Range | 2.1V to 20V | V |
| Output Voltage Range | 1.21V to 20V (Adjustable), Fixed: 1.5V, 1.8V, 2.5V, 3.3V | V |
| Quiescent Current | 1mA | mA |
| Quiescent Current in Shutdown | <1µA | µA |
| Noise (10Hz to 100kHz) | 40µVRMS | µVRMS |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 5-Lead TO-263 (D²Pak) | |
| Protection Features | Over Current, Over Temperature, Reverse Polarity |
Key Features
- Optimized for fast transient response
- Low noise: 40µVRMS (10Hz to 100kHz)
- No protection diodes needed
- Controlled quiescent current in dropout
- Stable with 10µF output capacitor and ceramic capacitors
- Reverse battery protection and no reverse current
- Thermal limiting
- Enable control feature
- AEC-Q100 qualified for automotive applications
Applications
The LT1963AEQ#PBF is suitable for various high-current applications requiring low dropout and fast transient response. These include:
- Automotive systems: Due to its AEC-Q100 qualification, it is ideal for automotive applications.
- Industrial power supplies: Where high current and low noise are critical.
- Telecommunications equipment: For reliable and efficient power regulation.
- Medical devices: Where precise voltage regulation and low noise are essential.
Q & A
- What is the maximum output current of the LT1963AEQ#PBF?
The maximum output current is 1.5A.
- What is the dropout voltage of the LT1963AEQ#PBF at 1.5A output current?
The dropout voltage is 340mV at 1.5A output current.
- What are the available output voltage options for the LT1963AEQ#PBF?
The output voltage can be adjusted from 1.21V to 20V, and fixed output voltages of 1.5V, 1.8V, 2.5V, and 3.3V are available.
- What is the quiescent current of the LT1963AEQ#PBF?
The quiescent current is 1mA.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 1µA.
- What is the noise level of the LT1963AEQ#PBF?
The noise level is 40µVRMS from 10Hz to 100kHz.
- What is the operating temperature range of the LT1963AEQ#PBF?
The operating temperature range is -40°C to 125°C.
- What package types are available for the LT1963AEQ#PBF?
The device is available in a 5-Lead TO-263 (D²Pak) package.
- Does the LT1963AEQ#PBF have built-in protection features?
Yes, it includes over current, over temperature, and reverse polarity protection.
- Is the LT1963AEQ#PBF suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
