Overview
The LT1963AEST-3.3#PBF is a low dropout (LDO) voltage regulator produced by Analog Devices Inc. This device is part of the LT1963A series, which is optimized for fast transient response and low noise operation. It is designed to supply up to 1.5A of output current, making it suitable for a variety of high-current applications. The regulator features a fixed output voltage of 3.3V and is available in a 3-lead plastic SOT-223 package.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Units |
|---|---|---|---|---|
| Output Current | 1.5A | - | - | A |
| Dropout Voltage | 340mV | 0.34V | 0.55V | mV |
| Quiescent Current | 1mA | - | - | mA |
| Noise (10Hz to 100kHz) | 40µVRMS | - | - | µVRMS |
| Output Voltage | 3.3V | 3.25V | 3.35V | V |
| Operating Temperature Range | -40°C to 125°C | -40°C | 125°C | °C |
| Package Type | 3-Lead Plastic SOT-223 | - | - | - |
Key Features
- Optimized for fast transient response
- Low noise operation: 40µVRMS (10Hz to 100kHz)
- Low dropout voltage: 340mV
- Quiescent current: 1mA
- 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
Applications
The LT1963AEST-3.3#PBF is suitable for various applications requiring high current and low noise voltage regulation, such as:
- Power supplies for high-current devices
- Industrial control systems
- Automotive systems (with appropriate automotive-grade versions)
- Telecommunications equipment
- Medical devices requiring stable and low-noise power supply
Q & A
- What is the maximum output current of the LT1963AEST-3.3#PBF?
The maximum output current is 1.5A.
- What is the typical dropout voltage of the LT1963AEST-3.3#PBF?
The typical dropout voltage is 340mV.
- What is the quiescent current of the LT1963AEST-3.3#PBF?
The quiescent current is 1mA.
- What is the noise level of the LT1963AEST-3.3#PBF?
The noise level is 40µVRMS (10Hz to 100kHz).
- What is the fixed output voltage of the LT1963AEST-3.3#PBF?
The fixed output voltage is 3.3V.
- What is the operating temperature range of the LT1963AEST-3.3#PBF?
The operating temperature range is -40°C to 125°C.
- What type of package does the LT1963AEST-3.3#PBF come in?
The device comes in a 3-lead plastic SOT-223 package.
- Does the LT1963AEST-3.3#PBF require external protection diodes?
No, the device does not require external protection diodes.
- Is the LT1963AEST-3.3#PBF stable with ceramic capacitors?
- Does the LT1963AEST-3.3#PBF have reverse battery protection?
