TPS51125RGET

Product Overview

Category

The TPS51125RGET belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This IC is primarily used for voltage regulation and power management in electronic devices, such as laptops, tablets, and other portable electronic devices.

Characteristics

• The TPS51125RGET is a highly efficient synchronous buck controller.
• It operates with an input voltage range of 4.5V to 28V.
• This IC provides a regulated output voltage with high accuracy.
• It offers excellent transient response and load regulation.
• The device incorporates various protection features like overvoltage, undervoltage, and overcurrent protection.

Package

The TPS51125RGET is available in a small outline package (SOIC) with a thermal pad for enhanced heat dissipation.

Essence

The essence of the TPS51125RGET lies in its ability to efficiently regulate voltage and manage power in electronic devices, ensuring stable and reliable operation.

Packaging/Quantity

The TPS51125RGET is typically packaged in reels or tubes, containing a specified quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: Adjustable from 0.6V to 5.5V
• Maximum Output Current: 20A
• Switching Frequency: Up to 1MHz
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%

Detailed Pin Configuration

The TPS51125RGET has a total of 20 pins. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. PGND: Power ground pin
3. BOOT: Bootstrap capacitor connection pin
4. PHASE: Phase node connection pin
5. VDRV: Gate driver supply voltage pin
6. LGATE: Low-side gate drive output pin
7. PGND: Power ground pin
8. FB: Feedback voltage input pin
9. COMP: Compensation pin for loop stability
10. SS/TR: Soft-start/Tracking pin
11. EN: Enable pin
12. RT/CLK: External resistor or clock synchronization input pin
13. AGND: Analog ground pin
14. VREF: Reference voltage output pin
15. VSENSE: Current sense input pin
16. ISET: Output current limit setting pin
17. OCSET: Overcurrent protection threshold setting pin
18. PGOOD: Power good indicator output pin
19. SS/TR: Soft-start/Tracking pin
20. VCC: Supply voltage pin

Functional Features

• Voltage regulation with high accuracy and efficiency.
• Fast transient response and excellent load regulation.
• Integrated protection features for safe operation.
• Adjustable soft-start and tracking functionality.
• Synchronization capability with an external clock source.
• Power good indicator for system monitoring.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Excellent voltage regulation ensures stable device operation.
• Compact package size allows for space-saving designs.
• Comprehensive protection features enhance system reliability.
• Adjustable soft-start and tracking enable flexible power management.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Requires careful consideration of external components for optimal performance.
• Higher cost compared to non-integrated solutions.

Working Principles

The TPS51125RGET operates as a synchronous buck controller, utilizing pulse-width modulation (PWM) techniques to regulate the output voltage. It converts the input voltage to the desired output voltage by controlling the switching of power MOSFETs. The feedback mechanism continuously monitors the output voltage and adjusts the duty cycle to maintain the desired voltage level. Various protection features ensure safe operation by detecting and responding to abnormal conditions.

Detailed Application Field Plans

The TPS51125RGET finds applications in various electronic devices that require efficient voltage regulation and power management. Some specific application fields include:

1. Laptop computers
2. Tablets and smartphones
3. Portable gaming consoles
4. Industrial control systems
5. Networking equipment
6. Battery-powered devices

Detailed and Complete Alternative Models

1. TPS51116RGET
2. TPS51117RGET
3. TPS51118RGET
4. TPS51119RGET
5. TPS51120RGET

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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