Overview
The LT1965EQ#PBF is a low noise, low dropout linear regulator from Analog Devices Inc. This device is part of the LT1965 series, which is designed to provide high performance and reliability in various electronic systems. The LT1965EQ#PBF can supply up to 1.1A of output current with a typical dropout voltage of 310mV, making it suitable for applications requiring stable and efficient voltage regulation.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Output Current | - | 1.1 | - | A |
| Dropout Voltage | - | 310 | - | mV |
| Output Voltage Range | 1.20 | - | 19.5 | V |
| Quiescent Current (Adjustable Version) | - | 500 | - | µA |
| Quiescent Current in Shutdown | - | <1 | - | µA |
| Output Voltage Noise (COUT = 10µF, ILOAD = 1.1A, BW = 10Hz to 100kHz) | - | 40 | - | µVRMS |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | DDPAK-5 | - | - |
Key Features
- Low noise operation, making it ideal for sensitive RF and DSP supply applications.
- Low dropout voltage of 310mV.
- High output current capability of up to 1.1A.
- Stable operation with output capacitors as low as 10µF.
- Internal protection circuitry including reverse-battery protection, current limiting with foldback, thermal limiting, and reverse-current protection.
- Available in fixed output voltages (1.5V, 1.8V, 2.5V, 3.3V) and as an adjustable device with a 1.20V reference.
- Low quiescent current, reducing to less than 1µA in shutdown.
Applications
- Sensitive RF and DSP supply applications.
- General-purpose voltage regulation in electronic systems.
- Power management in battery-powered devices.
- Industrial and automotive systems requiring stable voltage regulation.
- Communication and networking equipment.
Q & A
- What is the maximum output current of the LT1965EQ#PBF?
The LT1965EQ#PBF can supply up to 1.1A of output current.
- What is the typical dropout voltage of the LT1965EQ#PBF?
The typical dropout voltage is 310mV.
- What is the output voltage range of the LT1965EQ#PBF?
The output voltage range is from 1.20V to 19.5V.
- What is the quiescent current of the LT1965EQ#PBF in the adjustable version?
The quiescent current is 500µA for the adjustable version.
- How low can the quiescent current go in shutdown mode?
The quiescent current reduces to less than 1µA in shutdown mode.
- What type of protection circuitry does the LT1965EQ#PBF have?
The device includes reverse-battery protection, current limiting with foldback, thermal limiting, and reverse-current protection.
- What is the minimum output capacitor required for stable operation?
The device is stable with output capacitors as low as 10µF.
- What are some common applications of the LT1965EQ#PBF?
Common applications include sensitive RF and DSP supply applications, general-purpose voltage regulation, power management in battery-powered devices, and industrial and automotive systems.
- What is the operating temperature range of the LT1965EQ#PBF?
The operating temperature range is from -40°C to 125°C.
- What package type is the LT1965EQ#PBF available in?
The device is available in a DDPAK-5 package.
