MAX17428GTJ+TG40

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 32-TQFN (5mm x 5mm)
• Essence: Buck-Boost Converter
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 1.8V to 60V
• Switching Frequency: 100kHz to 2MHz
• Maximum Output Current: 3A
• Quiescent Current: 17µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MAX17428GTJ+TG40 has the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection for inductor
3. GND: Ground reference
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin to control device operation
6. SS/TRK: Soft-start/tracking pin
7. PG: Power Good indicator
8. VOUT: Output voltage pin

Functional Features

• Buck-boost topology for seamless transition between step-down and step-up modes
• Adaptive on-time control for high efficiency across a wide input voltage range
• Integrated low RDS(ON) switches for reduced power dissipation
• Programmable soft-start and tracking functions
• Overcurrent and overvoltage protection
• Power Good indicator for system monitoring

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications - High efficiency minimizes power loss - Low quiescent current extends battery life - Compact package size enables space-constrained designs

Disadvantages: - Limited maximum output current of 3A - Requires external components for operation

Working Principles

The MAX17428GTJ+TG40 is a buck-boost converter that regulates the output voltage by adjusting the duty cycle of the internal switches. It operates in continuous conduction mode, allowing seamless transition between step-down and step-up modes. The adaptive on-time control algorithm ensures high efficiency across a wide input voltage range.

When the input voltage is higher than the desired output voltage, the device operates in buck mode, stepping down the voltage. Conversely, when the input voltage is lower, it operates in boost mode, stepping up the voltage. This flexibility makes it suitable for various power management applications.

Detailed Application Field Plans

The MAX17428GTJ+TG40 finds applications in various fields, including but not limited to:

1. Automotive: Powering infotainment systems, lighting modules, and sensors.
2. Industrial: Providing power to motor drives, PLCs, and control systems.
3. Telecommunications: Regulating voltage for base stations, routers, and network equipment.
4. Consumer Electronics: Powering portable devices, smart home appliances, and wearables.

Detailed and Complete Alternative Models

1. MAX17429GTJ+TG40: Similar specifications with an extended maximum output current of 5A.
2. MAX17430GTJ+TG40: Higher switching frequency for reduced component size and improved transient response.
3. MAX17431GTJ+TG40: Lower quiescent current for ultra-low power applications.

These alternative models offer similar functionality while catering to specific requirements or constraints.

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