Overview
The LT1963AEQ-1.5#PBF is a low dropout (LDO) voltage regulator produced by Analog Devices Inc. This component is part of the LT1963A series, known for its fast transient response, low noise, and high current capability. It is designed to provide a fixed output voltage of 1.5V and can supply up to 1.5A of output current. The regulator is optimized for use in applications requiring stable and efficient voltage regulation, such as in automotive, industrial, and communication systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Manufacturer / Brand | ADI (Analog Devices, Inc.) | |
| Output Voltage | 1.5V | V |
| Output Current | 1.5A | A |
| Dropout Voltage | 340mV | mV |
| Input Voltage (Max) | 20V | V |
| Quiescent Current | 1mA | mA |
| Quiescent Current in Shutdown | <1µA | µA |
| Operating Temperature | -40°C to 125°C | °C |
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | |
| Protection Features | Over Current, Over Temperature, Reverse Polarity | |
| Mounting Type | Surface Mount | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Key Features
- Optimized for fast transient response
- Low noise: 40µVRMS (10Hz to 100kHz)
- Fixed output voltage of 1.5V, with other versions offering adjustable output from 1.21V to 20V
- Stable with output capacitors as low as 10µF and with ceramic capacitors
- Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting, and reverse current protection
- No protection diodes needed
- Controlled quiescent current in dropout
- <1µA quiescent current in shutdown
Applications
The LT1963AEQ-1.5#PBF is suitable for a variety of applications, including:
- Automotive systems: AEC-Q100 qualified for automotive applications.
- Industrial systems: Requires stable and efficient voltage regulation.
- Communication systems: Ideal for sensitive RF supply applications due to low noise.
- Power supplies: For 3.3V to 2.5V logic power supplies and other similar configurations.
Q & A
- What is the output voltage of the LT1963AEQ-1.5#PBF?
The output voltage is fixed at 1.5V.
- What is the maximum output current of the LT1963AEQ-1.5#PBF?
The maximum output current is 1.5A.
- What is the dropout voltage of the LT1963AEQ-1.5#PBF?
The dropout voltage is 340mV.
- What is the quiescent current of the LT1963AEQ-1.5#PBF?
The quiescent current is 1mA, dropping to <1µA in shutdown.
- What are the protection features of the LT1963AEQ-1.5#PBF?
The protection features include over current, over temperature, and reverse polarity protection.
- What is the operating temperature range of the LT1963AEQ-1.5#PBF?
The operating temperature range is -40°C to 125°C.
- What package types are available for the LT1963AEQ-1.5#PBF?
The component is available in TO-263-6, D²Pak (5 Leads + Tab), and TO-263BA packages.
- Is the LT1963AEQ-1.5#PBF suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- What is the noise level of the LT1963AEQ-1.5#PBF?
The noise level is 40µVRMS (10Hz to 100kHz).
- What type of capacitors can be used with the LT1963AEQ-1.5#PBF for stability?
The regulator is stable with output capacitors as low as 10µF and with ceramic capacitors.
