Overview
The LT1965EDD#TRPBF is a high-performance linear voltage regulator produced by Analog Devices Inc. This device is part of the LT1965 series, known for its low noise and low dropout characteristics. It is designed to supply up to 1.1A of output current with a typical dropout voltage of 310mV. The regulator is available in both fixed and adjustable output voltage configurations, ranging from 1.2V to 19.5V. Its low quiescent current and stable output voltage make it ideal for various power management applications, especially in sensitive RF and DSP supply scenarios.
Key Specifications
| Parameter | Value |
|---|---|
| Mounting Style | SMD/SMT |
| Package / Case | DFN-8 (3mm × 3mm) |
| Output Voltage | 1.2 V to 19.5 V |
| Maximum Output Current | 1.1 A |
| Number of Outputs | 1 Output |
| Polarity | Positive |
| Input Voltage, Min | 1.8 V |
| Input Voltage, Max | 20 V |
| PSRR / Ripple Rejection - Typ | 75 dB |
| Output Type | Adjustable |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
| Dropout Voltage | 310 mV (typ), 360 mV (max) |
| Quiescent Current | 500 µA |
| Line Regulation | 3 mV |
| Load Regulation | 4.25 mV |
Key Features
- Low noise and low dropout voltage, making it suitable for sensitive RF and DSP supply applications.
- Adjustable output voltage range from 1.2V to 19.5V, with fixed output options available.
- Maximum output current of 1.1A.
- Low quiescent current of 500µA, reducing to less than 1µA in shutdown mode.
- Internal protection circuitry includes reverse-battery protection, current limiting with foldback, thermal limiting, and reverse-current protection.
- Stable operation with output capacitors as low as 10µF.
- High PSRR (Power Supply Rejection Ratio) of 75 dB.
Applications
- Power management in various electronic circuits.
- Sensitive RF and DSP supply applications.
- Automotive systems requiring stable and efficient voltage regulation.
- General-purpose voltage regulation where low noise and low dropout are critical.
Q & A
- Q: What is the typical dropout voltage of the LT1965EDD#TRPBF?
A: The typical dropout voltage is 310mV, with a maximum of 360mV.
- Q: What is the maximum output current of the LT1965EDD#TRPBF?
A: The maximum output current is 1.1A.
- Q: What is the operating temperature range of the LT1965EDD#TRPBF?
A: The operating temperature range is from -40°C to +125°C.
- Q: Does the LT1965EDD#TRPBF have internal protection features?
A: Yes, it includes reverse-battery protection, current limiting with foldback, thermal limiting, and reverse-current protection.
- Q: What is the quiescent current of the LT1965EDD#TRPBF?
A: The quiescent current is 500µA, reducing to less than 1µA in shutdown mode.
- Q: How can I order the LT1965EDD#TRPBF?
A: You can order the LT1965EDD#TRPBF by selecting the 'Add to Cart' button on the product listing and proceeding to the checkout page to enter your payment and shipping information.
- Q: What is the warranty period for the LT1965EDD#TRPBF?
A: The warranty period is 1 year, covering any defects in materials and workmanship under normal use.
- Q: How does the LT1965EDD#TRPBF ensure stable output voltage?
A: The LT1965EDD#TRPBF ensures stable output voltage even under challenging conditions, and it is stable with output capacitors as low as 10µF.
- Q: What is the PSRR of the LT1965EDD#TRPBF?
A: The PSRR (Power Supply Rejection Ratio) is typically 75 dB.
- Q: Can the LT1965EDD#TRPBF be used in automotive applications?
A: Yes, the LT1965EDD#TRPBF is suitable for use in automotive systems due to its stable and efficient voltage regulation capabilities.
