Overview
The LT1185CQ#TRPBF is a 3A low dropout regulator (LDO) produced by Analog Devices Inc. This device is designed to provide high current with low dropout voltage, making it suitable for a variety of power management applications. It features adjustable current limit and remote sense capability, allowing for flexible and precise voltage regulation. The LT1185 can be used as either a positive output regulator with a floating input or as a standard negative regulator with a grounded input.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Current | 3 | A |
| Dropout Voltage | 0.75 | V at 3A |
| Reference Voltage | 2.37 | V |
| Reference Voltage Tolerance | ±1% | |
| Quiescent Current | 2.5 | mA |
| Output Voltage Range | 2.5 to 25 | V |
| Package Type | 5-Lead DDPAK | |
| Operating Junction Temperature | -55 to 150 | °C |
| Ripple Rejection | Good high frequency ripple rejection |
Key Features
- Low resistance pass transistor with 0.25Ω on-resistance
- Accurate programmable current limit
- Shutdown capability
- Internal reference available
- Full remote sense capability
- Low quiescent current of 2.5mA
- Good high frequency ripple rejection
- Adjustable output voltage range from 2.5V to 25V
Applications
The LT1185CQ#TRPBF is suitable for various applications requiring high current and low dropout voltage, such as:
- Power supplies for industrial and automotive systems
- Battery-powered devices requiring efficient voltage regulation
- Telecommunication equipment
- Medical devices
- High-performance computing and data storage systems
Q & A
- What is the maximum output current of the LT1185CQ#TRPBF?
The maximum output current is 3A. - What is the dropout voltage of the LT1185CQ#TRPBF at 3A?
The dropout voltage is 0.75V at 3A. - What is the reference voltage tolerance of the LT1185CQ#TRPBF?
The reference voltage tolerance is ±1%. - What is the quiescent current of the LT1185CQ#TRPBF?
The quiescent current is 2.5mA. - What is the output voltage range of the LT1185CQ#TRPBF?
The output voltage range is from 2.5V to 25V. - What package types are available for the LT1185CQ#TRPBF?
The device is available in a 5-Lead DDPAK package. - What is the operating junction temperature range of the LT1185CQ#TRPBF?
The operating junction temperature range is from -55°C to 150°C. - Does the LT1185CQ#TRPBF have remote sense capability?
Yes, it has full remote sense capability. - How is the current limit programmed in the LT1185CQ#TRPBF?
The current limit is programmed with a resistor from the REF pin to the GND pin. - What are some typical applications of the LT1185CQ#TRPBF?
Typical applications include power supplies for industrial and automotive systems, battery-powered devices, telecommunication equipment, medical devices, and high-performance computing systems.
