LTC1985ES5-1.8#TRPBF

Overview

Product Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - High Output Current - Small Package Size - Low Quiescent Current

Package: SOT-23-5

Essence: The LTC1985ES5-1.8#TRPBF is a low dropout voltage regulator IC designed for various applications that require a stable and regulated output voltage.

Packaging/Quantity: The LTC1985ES5-1.8#TRPBF is available in tape and reel packaging, with 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#TRPBF has the following pin configuration:

```

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| | --| V+ |-- --| |-- --| GND|-- --| |-- --| VOUT|-- |____| ```

Functional Features

• Low dropout voltage allows operation with small input-output differentials.
• High output current capability enables it to power a wide range of devices.
• Small package size makes it suitable for space-constrained applications.
• Low quiescent current ensures minimal power consumption during standby or idle mode.

Advantages

• Stable and regulated output voltage.
• Wide input voltage range.
• Low dropout voltage minimizes power dissipation.
• Compact package size facilitates easy integration into various designs.
• Low quiescent current prolongs battery life in portable applications.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• SOT-23-5 package may require additional thermal considerations for dissipating heat.

Working Principles

The LTC1985ES5-1.8#TRPBF operates as a low dropout voltage regulator by maintaining a constant output voltage despite variations in the input voltage and load conditions. It achieves this through a combination of internal circuitry, feedback mechanisms, and control algorithms.

Application Field Plans

The LTC1985ES5-1.8#TRPBF is commonly used in various electronic devices and systems that require a stable and regulated power supply. Some typical application fields include:

1. Battery-powered devices: Portable electronics, handheld instruments, and wearable devices.
2. Communication systems: Wireless modules, routers, and network equipment.
3. Industrial automation: Sensors, actuators, and control systems.
4. Automotive electronics: Infotainment systems, lighting controls, and engine management units.
5. Medical devices: Patient monitoring equipment, diagnostic tools, and implantable devices.

Alternative Models

Below are some alternative models that offer similar functionality to the LTC1985ES5-1.8#TRPBF:

1. LM1117-1.8: Low dropout voltage regulator with 1.8V output voltage.
2. MCP1700-1802E/TO: Low quiescent current LDO regulator with 1.8V output voltage.
3. MAX8887EZK18+: Ultra-low quiescent current LDO regulator with 1.8V output voltage.

These alternative models can be considered based on specific requirements and design constraints.

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