LTC1985ES5-1.8#TRMPBF

Overview

Product Category

LTC1985ES5-1.8#TRMPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage regulation: The LTC1985ES5-1.8#TRMPBF provides a regulated output voltage.
• Efficiency: It offers high efficiency, minimizing power losses.
• Low dropout voltage: The device operates with a low dropout voltage, ensuring stable performance even when the input voltage is close to the desired output voltage.
• Small package size: The LTC1985ES5-1.8#TRMPBF comes in a compact SOT-23 package, making it suitable for space-constrained applications.
• Low quiescent current: It has a low quiescent current, reducing power consumption during standby or idle modes.

Package and Quantity

The LTC1985ES5-1.8#TRMPBF is available in a SOT-23 package. It is typically sold in reels containing a specific quantity, such as 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.8V
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC1985ES5-1.8#TRMPBF has the following pin configuration:

```

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| | --| |-- VIN (Input Voltage) --| |-- GND (Ground) --| |-- VOUT (Output Voltage) |____| ```

Functional Features

• Voltage Regulation: The LTC1985ES5-1.8#TRMPBF maintains a stable output voltage of 1.8V, regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting circuitry to protect the device and the connected load from excessive current.
• Thermal Shutdown: The regulator includes a thermal shutdown feature that prevents overheating by disabling the output when the temperature exceeds a safe threshold.
• Short-Circuit Protection: In case of a short circuit, the LTC1985ES5-1.8#TRMPBF limits the output current to prevent damage to the device.

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into space-constrained designs.
• High efficiency minimizes power losses, enhancing overall system performance.
• Low dropout voltage ensures stable operation even with low input voltages.
• Wide operating temperature range enables usage in various environmental conditions.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires external components (such as capacitors) for proper operation, increasing the overall component count.

Working Principles

The LTC1985ES5-1.8#TRMPBF is a linear voltage regulator based on a fixed-output voltage reference and a pass transistor. It regulates the output voltage by adjusting the resistance between the input and output terminals. When the input voltage exceeds the desired output voltage, the regulator reduces the resistance to maintain a constant output voltage. Conversely, if the input voltage drops below the desired output voltage, the regulator increases the resistance to compensate and maintain the specified output voltage level.

Application Field Plans

The LTC1985ES5-1.8#TRMPBF finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - IoT (Internet of Things) devices - Embedded systems - Automotive electronics

Alternative Models

Here are some alternative models that offer similar functionality to the LTC1985ES5-1.8#TRMPBF: - LM1117-1.8: A popular 1.8V linear voltage regulator available in various package options. - MCP1700-1802E/TO: Another 1.8V fixed-output voltage regulator with low quiescent current. - LT1763CS8-1.8: A high-performance 1.8V regulator with low dropout voltage and adjustable output.

These alternatives can be considered based on specific requirements, availability, and cost considerations.

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