Overview
The LT1764EQ#TRPBF is a high-performance, low dropout (LDO) voltage regulator manufactured by Analog Devices Inc. This device is optimized for fast transient response and low noise, making it ideal for sensitive RF supply applications and other high-current requirements. The LT1764 can supply up to 3A of output current with a dropout voltage of 340mV. It features a wide input voltage range from 2.7V to 20V and is available in fixed output voltages of 1.5V, 1.8V, 2.5V, and 3.3V, as well as an adjustable output from 1.21V to 20V.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Output Current | - | - | 3 | A |
| Dropout Voltage | - | 340 | - | mV |
| Quiescent Current | - | 1 | - | mA |
| Quiescent Current in Shutdown | - | <1 | - | µA |
| Input Voltage Range | 2.7 | - | 20 | V |
| Output Voltage Noise (10Hz to 100kHz) | - | 40 | - | µVRMS |
| Minimum Output Capacitor | 10 | - | - | µF |
| Package Types | - | TO-220, DD, TSSOP | - | - |
Key Features
- Optimized for fast transient response.
- Low noise: 40µVRMS (10Hz to 100kHz), making it suitable for sensitive RF supply applications.
- Wide input voltage range: 2.7V to 20V.
- Fixed output voltages: 1.5V, 1.8V, 2.5V, 3.3V, and adjustable output from 1.21V to 20V.
- Stable with a minimum output capacitor of 10µF.
- Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting, and reverse current protection.
- No protection diodes needed.
- Controlled quiescent current in dropout.
Applications
- Sensitive RF supply applications.
- Post-regulators for switching supplies.
- Logic power supplies.
- High-current linear voltage regulation in various electronic systems.
Q & A
- Q: What is the maximum output current of the LT1764EQ#TRPBF?
A: The maximum output current is 3A.
- Q: What is the dropout voltage of the LT1764EQ#TRPBF at 3A output current?
A: The dropout voltage is 340mV at 3A output current.
- Q: What is the quiescent current of the LT1764EQ#TRPBF in normal operation and in shutdown?
A: The quiescent current is 1mA in normal operation and less than 1µA in shutdown.
- Q: What is the input voltage range of the LT1764EQ#TRPBF?
A: The input voltage range is from 2.7V to 20V.
- Q: What are the available fixed output voltages for the LT1764EQ#TRPBF?
A: The fixed output voltages are 1.5V, 1.8V, 2.5V, and 3.3V.
- Q: What is the minimum output capacitor required for stability?
A: The minimum output capacitor required is 10µF.
- Q: Does the LT1764EQ#TRPBF have internal protection features?
A: Yes, it includes reverse battery protection, current limiting, thermal limiting, and reverse current protection.
- Q: In what packages is the LT1764EQ#TRPBF available?
A: It is available in 5-lead TO-220, DD, and 16-lead TSSOP packages.
- Q: How can I obtain detailed information about the LT1764EQ#TRPBF?
A: You can find detailed information in the datasheet available on the manufacturer's website or through authorized distributors like Mouser, Digi-Key, etc.
- Q: Where can I purchase the LT1764EQ#TRPBF?
A: You can purchase it from authorized distributors such as Mouser, Digi-Key, and other electronic component suppliers.
