LT1618EMS

Images are for reference only

LT1618EMS

+BOM

Switching Voltage Regulators LT1618 - Constant-Current/Constant-Voltage 1.4MHz Step-Up DC/DC Converter

365 Days Quality Guarantee

7*24 hours service quarantee

90-day after-sales guarantee

Genuine Product Guarantee

Specifications

Attribute Value

Overview

Description

The LT1618EMS is a high-performance DC/DC converter designed for efficient power management in electronic devices. It is a step-down (buck) regulator, meaning it converts a higher input voltage to a lower output voltage, ideal for battery-powered or portable applications. The device is known for its wide input voltage range, typically from 3.3V to 25V, and its ability to deliver a regulated output with high efficiency, often up to 95%.
One of the key features of the LT1618EMS is its ability to operate at a fixed frequency, which minimizes electromagnetic interference (EMI) and simplifies the design of the power supply. It also includes features like soft-start, which prevents excessive inrush current during startup, and overcurrent protection, enhancing its reliability and safety.
The compact MSOP (Mini Small Outline Package) form factor allows for space-efficient designs, making it suitable for a variety of applications, including telecommunications, networking equipment, and portable electronics. Overall, the LT1618EMS is valued for its versatility, efficiency, and reliability in power conversion tasks.

Equivalent

The LT1618EMS is a step-up DC/DC converter from Analog Devices. Equivalent products include the TPS61030 from Texas Instruments, the MAX1709 from Maxim Integrated, and the NCP1403 from ON Semiconductor. These components share similar voltage boost functions and applications, but it's important to compare their specifications to ensure compatibility with your specific requirements.

Features

The LT1618EMS is a versatile DC-DC converter integrated circuit designed for applications requiring high efficiency and power density. Key features of the LT1618EMS include:
1. Voltage Range and Efficiency: Operates with input voltages ranging from 1.6V to 18V, making it suitable for use with a variety of power sources. It delivers high efficiency across a wide load range.
2. Current Mode Control: Utilizes a current-mode control architecture, which provides fast transient response and easy loop compensation, enhancing system stability and performance.
3. Adjustable Output: Offers an adjustable output voltage, allowing flexibility in setting the desired output level based on specific application needs.
4. Switching Frequency: Supports a fixed switching frequency of up to 1.4MHz, which helps minimize the size of external components and improve overall solution size.
5. Compact Package: Available in a compact MSOP package, which is beneficial for space-constrained applications.
6. Protection Features: Includes built-in protection features such as overcurrent protection and thermal shutdown, ensuring reliability and safety in operation.
These features make the LT1618EMS suitable for a variety of applications, including battery-powered devices, portable electronics, and industrial power supplies.

Pinout

The LT1618EMS is a high-efficiency, constant-current, constant-voltage, step-down regulator designed for driving high-current LEDs. It typically comes in a 10-lead MSOP package. Here's a concise description of its pin functions:
1. SW (Pins 1, 2): Switch Node. Connect these pins to the inductor and diode.
2. GND (Pin 3): Ground. This pin should be connected to the ground plane of your circuit.
3. VC (Pin 4): Compensation. Connect a capacitor and a resistor network to this pin to stabilize the control loop.
4. SHDN/UVLO (Pin 5): Shutdown/Undervoltage Lockout. Pull this pin below 0.3V to shut down the device. Connect to a resistor divider for UVLO function.
5. VFB (Pin 6): Voltage Feedback. Connect to the output resistor divider network to set output voltage.
6. VCB (Pin 7): LED Current Sense. Connect this pin to the sense resistor to regulate LED current.
7. VIN (Pin 8): Input Supply Voltage. Connect to the input supply.
8. BYP (Pin 9): Bypass. Connect a capacitor from this pin to ground for noise reduction.
9. SS (Pin 10): Soft Start. Connect a capacitor to this pin to limit inrush current during startup.
These pin functions are critical for configuring the LT1618EMS in an LED driving application.

Manufacturer

The LT1618EMS is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a multinational semiconductor company that specializes in the design, manufacturing, and marketing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company serves a wide range of industries, including automotive, communications, consumer electronics, healthcare, industrial, and aerospace, offering solutions for signal processing, power management, data conversion, and other applications. In 2017, Analog Devices acquired Linear Technology Corporation, which was originally responsible for the LT1618EMS and similar products. This acquisition allowed Analog Devices to expand its portfolio and enhance its capabilities in the power management and precision analog markets.

Application

The LT1618EMS is a high-efficiency, constant frequency step-up DC/DC converter. It is typically used in applications requiring low power consumption and high efficiency. Key application areas include:
1. Portable Electronics: Used in devices like mobile phones, PDAs, and digital cameras due to its compact size and efficiency.
2. Battery-Powered Devices: Ideal for devices where battery life is critical, such as MP3 players and portable medical equipment.
3. LED Drivers: Suitable for driving high-brightness LEDs in applications like flashlights or backlighting.
4. LCD Biasing: Provides the necessary voltage levels for LCD displays.
5. Wireless Communication: Used in RF and other wireless communication devices for efficient power management.
These applications benefit from the LT1618EMS's efficiency and compact form factor.

Package

The LT1618EMS is typically supplied in an MSOP (Mini Small Outline Package) package, which is a small-form-factor surface-mount package commonly used for integrated circuits.

Products related to LT1618EMS