LTC3620EDC-1

Product Overview

Category

The LTC3620EDC-1 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices to regulate and control power supply voltages efficiently.

Characteristics

• High efficiency: The LTC3620EDC-1 offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low quiescent current: The IC has a low quiescent current, ensuring minimal power consumption during standby or idle modes.
• Adjustable output voltage: The output voltage can be easily adjusted according to the specific requirements of the application.

Package

The LTC3620EDC-1 is available in a small form factor package, typically a 6-pin DFN (Dual Flat No-Lead) package. This package provides excellent thermal performance and compactness.

Essence

The essence of the LTC3620EDC-1 lies in its ability to efficiently regulate and control power supply voltages, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The LTC3620EDC-1 is usually packaged in reels or tubes, with a typical quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 2A
• Quiescent Current: 20µA
• Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. SW: Switching node pin
4. FB: Feedback voltage pin
5. EN: Enable pin
6. VOUT: Output voltage pin

Functional Features

• High efficiency synchronous buck regulator
• Adjustable output voltage through external resistors
• Soft-start and current limit functions for controlled startup and overload protection
• Low dropout operation, allowing efficient regulation even with low input-output voltage differentials
• Thermal shutdown protection to prevent damage due to excessive temperature

Advantages and Disadvantages

Advantages

• High conversion efficiency leads to reduced power dissipation and longer battery life in portable devices.
• Wide input voltage range enables compatibility with various power sources.
• Compact package size facilitates integration into space-constrained designs.
• Adjustable output voltage allows flexibility in meeting specific application requirements.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Higher cost compared to non-integrated power management solutions.
• Requires careful thermal management due to the potential for heat generation during operation.

Working Principles

The LTC3620EDC-1 operates as a synchronous buck regulator, converting the input voltage to a lower, regulated output voltage. It utilizes pulse-width modulation (PWM) techniques to control the duty cycle of the internal power switches, achieving efficient voltage conversion. The feedback voltage is compared to a reference voltage, and the duty cycle is adjusted accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The LTC3620EDC-1 finds applications in a wide range of electronic devices, including but not limited to: - Battery-powered portable devices such as smartphones, tablets, and wearables - Industrial equipment requiring stable power supply voltages - Automotive electronics for efficient power management - IoT (Internet of Things) devices with strict power consumption requirements

Detailed and Complete Alternative Models

• LTC3620EDC: Similar to LTC3620EDC-1, but without the enable pin functionality.
• LTC3620IDD: A dual-channel version of the LTC3620EDC-1, capable of independently regulating two different output voltages.

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