MAX1921EUT18 - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX1921EUT18

Manufacturer

analog-devices

Introduction

The MAX1921EUT18 is a compact, high-efficiency step-down DC-DC switching regulator designed to deliver a fixed 1.8V output from an input voltage range of 2V to 5.5V. Ideal for battery-powered devices due to its low power consumption and high efficiency.

Product Features and Performance

Step-down (Buck) regulator with fixed 1.8V output.

Supports input voltages from 2V to 5.5V.

Delivers up to 400mA output current.

High frequency switching up to 1.2MHz allows the use of small external inductors.

Integrated synchronous rectifier enhances efficiency.

Operates across a wide temperature range of -40°C to 85°C.

Product Advantages

High efficiency reduces power loss and heat generation.

Compact SOT-23-6 package saves board space.

High switching frequency enables the use of small, low-cost capacitors and inductors.

Built-in thermal protection enhances safety and reliability.

Key Technical Parameters

Voltage Input (Min): 2V

Voltage Input (Max): 5.5V

Voltage Output (Min/Fixed): 1.8V

Current Output: 400mA

Frequency Switching: Up to 1.2MHz

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Integrated thermal overload protection.

Overcurrent protection prevents damage due to excessive loads.

Compatibility

Compatible with a wide range of battery technologies and input voltages.

Suitable for surface mount technology (SMT) on PCBs.

Application Areas

Mobile and wireless devices.

Portable electronics.

Battery-powered gadgets.

Low-power IoT devices.

Product Lifecycle

Currently in active production.

Not nearing discontinuation, ensuring long-term availability.

Several Key Reasons to Choose This Product

High efficiency for longer battery life in portable devices.

Small footprint allows for miniaturized product designs.

Flexible input voltage range compatible with multiple battery types.

High-frequency operation reduces external component size, saving cost.

Reliable performance with built-in safety features.