MAX1582ETC+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, low-power, step-up DC-DC converter
• Package: 12-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Voltage regulator and power supply solution
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: Adjustable from 2.7V to 5.5V
• Maximum Output Current: 500mA
• Efficiency: Up to 96%
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. SW: Switching node pin
4. FB: Feedback voltage pin
5. EN: Enable pin
6. SS/TR: Soft-start/Tracking pin
7. VOUT: Output voltage pin
8. PGND: Power ground pin
9. LX: Inductor connection pin
10. NC: No connect
11. NC: No connect
12. VCC: Supply voltage pin

Functional Features

• High efficiency conversion of input voltage to adjustable output voltage
• Low quiescent current for extended battery life
• Internal synchronous rectification for improved efficiency
• Soft-start and tracking functions for controlled startup and shutdown
• Overcurrent and thermal protection for enhanced reliability
• Small form factor and low external component count for space-saving designs

Advantages and Disadvantages

Advantages: - High efficiency operation saves power and extends battery life - Wide input voltage range allows for versatile applications - Compact package size enables space-constrained designs - Integrated protection features enhance system reliability

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Fixed switching frequency may not be adjustable for specific requirements

Working Principles

The MAX1582ETC+T is a step-up DC-DC converter that efficiently converts a low input voltage to a higher adjustable output voltage. It utilizes a synchronous rectification scheme to minimize power losses and maximize efficiency. The device operates by controlling the duty cycle of an internal switch, which regulates the energy transfer from the input to the output.

When the input voltage is applied, the internal control circuitry generates a pulse-width modulated (PWM) signal that drives the switch. This PWM signal controls the on and off time of the switch, regulating the average output voltage. The feedback voltage pin (FB) monitors the output voltage and adjusts the duty cycle accordingly to maintain the desired output voltage level.

The MAX1582ETC+T also incorporates soft-start and tracking functions. Soft-start gradually ramps up the output voltage during startup, preventing excessive inrush current. Tracking allows the output voltage to follow an external reference voltage, enabling synchronization with other power supply rails.

Detailed Application Field Plans

The MAX1582ETC+T is well-suited for various applications that require efficient power management and voltage regulation. Some potential application fields include:

1. Battery-powered portable devices: The low quiescent current and high efficiency make it ideal for extending battery life in smartphones, tablets, and wearable devices.
2. IoT (Internet of Things) devices: The wide input voltage range and small form factor enable integration into IoT sensors, smart home devices, and wireless communication modules.
3. Industrial automation: The robust protection features and wide operating temperature range make it suitable for industrial control systems, motor drives, and sensor interfaces.
4. Automotive electronics: The compact package size and thermal protection make it suitable for automotive infotainment systems, lighting controls, and power management modules.

Detailed and Complete Alternative Models

1. MAX1583ETC+T: Similar to MAX1582ETC+T but with a higher maximum output current of 800mA.
2. MAX1584ETC+T: Step-up DC-DC converter with adjustable output voltage and higher efficiency.
3. MAX1585ETC+T: Step-up DC-DC converter with integrated power switch and higher output current capability.
4. MAX1586ETC+T: High-efficiency step-up DC-DC converter with adjustable output voltage and wide input voltage range.

These alternative models offer similar functionality and features, providing designers with options based on specific application requirements.

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