MAX17552AUB+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 10 µMAX®
• Essence: Buck Converter
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.9V to 0.95 x VIN
• Switching Frequency: 100kHz to 2.2MHz
• Maximum Output Current: 1.5A
• Quiescent Current: 17µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MAX17552AUB+T has the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection for the internal power switch
3. GND: Ground reference pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the device on/off
6. SS/TR: Soft-start/Tracking pin for controlling the start-up behavior
7. PG: Power Good indicator pin
8. LX: Inductor connection pin
9. VCC: Supply voltage input for internal control circuitry
10. BST: Boost pin for driving an external N-channel MOSFET

Functional Features

• High efficiency synchronous buck converter
• Integrated low RDS(ON) switches for high efficiency
• Adjustable output voltage through external resistors
• Programmable soft-start and tracking functionality
• Overcurrent and overtemperature protection
• Power Good indicator for system monitoring
• Internal compensation for simplified design

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - High efficiency operation reduces power dissipation - Low quiescent current minimizes standby power consumption - Compact 10 µMAX® package saves board space - Integrated protection features enhance system reliability

Disadvantages: - Maximum output current limited to 1.5A - Limited output voltage range compared to some other models - Requires external components for proper operation

Working Principles

The MAX17552AUB+T is a buck converter that steps down the input voltage to a lower regulated output voltage. It utilizes high-efficiency synchronous rectification to minimize power losses. The device operates by controlling the duty cycle of the internal power switches, which in turn regulates the output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly to maintain the desired voltage level. The soft-start/ tracking pin (SS/TR) controls the start-up behavior and allows for gradual voltage ramp-up. The device also incorporates various protection mechanisms to ensure safe operation.

Detailed Application Field Plans

The MAX17552AUB+T is suitable for a wide range of applications, including but not limited to:

1. Industrial automation systems
2. Automotive electronics
3. Telecommunications equipment
4. Power supplies for consumer electronics
5. Battery-powered devices
6. LED lighting systems
7. Distributed power systems

Detailed and Complete Alternative Models

1. MAX17551AUB+T: Similar specifications, but with a lower maximum output current of 1A.
2. MAX17553AUB+T: Similar specifications, but with a higher maximum output current of 2A.
3. MAX17554AUB+T: Similar specifications, but with a wider input voltage range of 4.5V to 76V.

These alternative models provide options for different current requirements and input voltage ranges while maintaining similar functionality to the MAX17552AUB+T.

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