Overview
The LT1963AEQ-2.5#TRPBF is a low dropout (LDO) linear 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, making it suitable for sensitive applications such as RF supply systems.
The device is capable of supplying up to 1.5A of output current with a dropout voltage of 340mV. It features a well-controlled quiescent current that does not rise in dropout, ensuring stable operation. The regulator is available in various fixed output voltages, including 2.5V, and an adjustable version with a 1.21V reference voltage.
The LT1963AEQ-2.5#TRPBF is packaged in a 5-lead DD-Pak (TO-263-6) and is stable with output capacitors as low as 10µF. It includes internal protection circuitry such as reverse battery protection, current limiting, thermal limiting, and reverse current protection.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Voltage | 2.5V | V |
| Maximum Output Current | 1.5A | A |
| Dropout Voltage | 340mV | mV |
| Minimum Input Voltage | VOUT(NOMINAL) + 1V | V |
| Maximum Input Voltage | 20V | V |
| Quiescent Current | 1mA (typical), <1µA (shutdown) | A |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 5-Lead DD-Pak (TO-263-6) | |
| Output Capacitor Stability | Stable with capacitors as low as 10µF |
Key Features
- Low dropout voltage of 340mV
- Fast transient response
- Low output noise, ideal for sensitive RF supply applications
- Internal protection circuitry including reverse battery protection, current limiting, thermal limiting, and reverse current protection
- Well-controlled quiescent current that does not rise in dropout
- Stable operation with output capacitors as low as 10µF
- Shutdown mode with quiescent current less than 1µA
Applications
- 3.3V to 2.5V logic power supplies
- Post-regulator for switching supplies
- Sensitive RF supply applications
- General-purpose power supply applications requiring low noise and fast transient response
Q & A
- What is the maximum output current of the LT1963AEQ-2.5#TRPBF?
The maximum output current is 1.5A.
- What is the dropout voltage of the LT1963AEQ-2.5#TRPBF?
The dropout voltage is 340mV.
- What are the available package types for the LT1963A series?
The devices are available in 5-lead TO-220, DD, 3-lead SOT-223, 8-lead SO, and 16-lead TSSOP packages.
- What is the operating temperature range of the LT1963AEQ-2.5#TRPBF?
The operating temperature range is -40°C to 125°C.
- Does the LT1963AEQ-2.5#TRPBF have internal protection circuitry?
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 1µA.
- What is the minimum output capacitor required for stability?
The device is stable with output capacitors as low as 10µF.
- Is the LT1963AEQ-2.5#TRPBF suitable for RF applications?
- What is the reference voltage for the adjustable version of the LT1963A series?
The reference voltage for the adjustable version is 1.21V.
- Is the LT1963AEQ-2.5#TRPBF compliant with automotive standards?
Specific models are available for automotive applications, but the LT1963AEQ-2.5#TRPBF itself may not be; contact the manufacturer for specific automotive-grade products.
