UCC3626DW

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-performance synchronous buck controller
• Package: SOIC-16
• Essence: Regulates voltage in power supply applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 15V
• Output Voltage Range: 0.8V to 5.5V
• Switching Frequency: 200kHz to 1MHz
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Protection Features: Overvoltage, undervoltage, overcurrent, and thermal shutdown

Detailed Pin Configuration

The UCC3626DW has a total of 16 pins. The pin configuration is as follows:

1. VIN: Input voltage pin
2. BOOT: Bootstrap capacitor connection for high-side gate driver
3. PHASE: Connection to the switching node of the power stage
4. GND: Ground reference pin
5. COMP: Compensation pin for loop stability
6. FB: Feedback pin for output voltage regulation
7. SS/TR: Soft-start and tracking pin
8. EN: Enable pin for turning the device on/off
9. VREF: Reference voltage output pin
10. AGND: Analog ground reference pin
11. PGND: Power ground reference pin
12. RT/CT: Timing resistor and capacitor connection pin
13. SYNC: Synchronization input pin
14. SS/TR: Soft-start and tracking pin
15. VCC: Supply voltage pin
16. VCC: Supply voltage pin

Functional Features

• High-performance synchronous buck controller
• Wide input voltage range for versatile applications
• Adjustable output voltage for flexibility
• High efficiency for power-saving operation
• Comprehensive protection features for enhanced reliability
• Soft-start and tracking capability for controlled startup

Advantages and Disadvantages

Advantages: - High-performance regulation for stable power supply - Wide input voltage range allows compatibility with various sources - Adjustable output voltage meets different system requirements - High efficiency reduces power consumption and heat generation - Comprehensive protection features enhance system reliability - Soft-start and tracking capability ensure controlled startup

Disadvantages: - Limited to power management applications - Requires external components for complete functionality - Relatively high cost compared to non-integrated solutions

Working Principles

The UCC3626DW is a synchronous buck controller that regulates the output voltage in power supply applications. It operates by controlling the duty cycle of the internal power switches to maintain a stable output voltage. The device uses a feedback mechanism to compare the actual output voltage with a reference voltage and adjusts the duty cycle accordingly. By switching the power switches at a high frequency, it efficiently converts the input voltage to the desired output voltage.

Detailed Application Field Plans

The UCC3626DW is commonly used in various power management applications, including but not limited to: - DC-DC converters - Voltage regulators - Power supplies for computer systems - Industrial equipment - Telecommunications devices - Automotive electronics

Detailed and Complete Alternative Models

1. LM2596S-ADJ: Adjustable Buck Converter IC
2. LT8610ABEMSE#PBF: Synchronous Step-Down Regulator
3. TPS54332DDAR: 3A, 28V Input, Step-Down Converter
4. MAX15062BATA+: High-Efficiency, Synchronous Step-Down Converter
5. ADP2386ACPZ-R7: 4.5V to 18V, 8A, Synchronous Step-Down DC-DC Converter

These alternative models offer similar functionality and can be considered as alternatives to the UCC3626DW.

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