MAX503EAG+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Dropout Voltage
• Package: 8-pin TDFN (Thin Dual Flat No-Lead)
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 500mA
• Dropout Voltage: 120mV at 500mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX503EAG+T features an 8-pin TDFN package with the following pin configuration:

1. IN: Input Voltage
2. GND: Ground
3. FB: Feedback Voltage
4. EN: Enable Pin
5. VOUT: Output Voltage
6. SW: Switching Node
7. PGND: Power Ground
8. SS/TR: Soft-Start/Tracking

Functional Features

• High Efficiency: The MAX503EAG+T offers high efficiency, ensuring minimal power loss during voltage regulation.
• Low Dropout Voltage: With a dropout voltage as low as 120mV at 500mA, this IC provides stable output voltage even when the input voltage is close to the desired output voltage.
• Enable Pin: The EN pin allows for easy on/off control of the regulator, conserving power when not needed.
• Soft-Start/Tracking: The SS/TR pin enables soft-start functionality, preventing excessive inrush current during startup.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low dropout voltage ensures stable output voltage. - Enable pin allows for easy control of the regulator. - Soft-start functionality prevents inrush current.

Disadvantages: - Limited maximum output current of 500mA may not be suitable for high-power applications. - Operating temperature range of -40°C to +85°C may restrict usage in extreme environments.

Working Principles

The MAX503EAG+T is a voltage regulator that takes an input voltage within the range of 2.5V to 6.5V and provides a regulated output voltage between 1.2V and 5.5V. It achieves this by utilizing a switching regulator architecture, which offers high efficiency and low dropout voltage. The regulator's internal circuitry ensures stable output voltage even when the input voltage fluctuates.

Detailed Application Field Plans

The MAX503EAG+T finds applications in various fields, including but not limited to:

1. Portable Electronics: Due to its compact package and low power consumption, it is ideal for use in smartphones, tablets, and portable media players.
2. IoT Devices: With its wide input voltage range and efficient operation, it can be used in IoT devices such as smart home sensors and wearable devices.
3. Battery-Powered Systems: The low dropout voltage and quiescent current make it suitable for battery-powered systems, extending battery life.

Detailed and Complete Alternative Models

1. MAX503EUK+: Similar to MAX503EAG+T, but in a SOT23-5 package.
2. MAX5033BASA+: A higher current variant with a maximum output current of 1A.
3. MAX5035DASA+: Offers adjustable output voltage and a maximum output current of 500mA.

These alternative models provide similar functionality and can be considered based on specific application requirements.

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