LTC3617IUDD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 16-Lead QFN (Quad Flat No-Lead)
• Essence: Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1A
• Quiescent Current: 20µA
• Switching Frequency: 2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3617IUDD has a total of 16 pins. The pin configuration is as follows:

1. VOUT
2. SW
3. GND
4. FB
5. EN
6. SS
7. PGND
8. LX
9. LX
10. LX
11. LX
12. LX
13. LX
14. LX
15. LX
16. VIN

Functional Features

• High efficiency synchronous buck regulator
• Low quiescent current for extended battery life
• Wide input voltage range allows flexibility in power supply design
• Adjustable output voltage with precision feedback control
• Soft-start and current limit protection for safe operation
• Power good indicator for system monitoring

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power dissipation - Low quiescent current prolongs battery life - Wide input voltage range provides versatility in applications - Compact package size saves board space - Power good indicator enhances system reliability

Disadvantages: - Limited maximum output current of 1A - Requires external components for operation - Higher cost compared to non-integrated solutions

Working Principles

The LTC3617IUDD is a synchronous buck regulator that converts a higher input voltage to a lower output voltage. It utilizes high-frequency switching to efficiently regulate the output voltage while minimizing power losses. The regulator operates by controlling the duty cycle of the internal switches, which in turn controls the average output voltage. Feedback control ensures accurate regulation, and various protection features safeguard against overcurrent and overheating conditions.

Detailed Application Field Plans

The LTC3617IUDD is commonly used in various applications, including but not limited to:

1. Portable electronic devices such as smartphones, tablets, and portable media players
2. Battery-powered systems like wireless sensors, IoT devices, and wearables
3. Industrial equipment and automation systems
4. Automotive electronics and infotainment systems
5. Power supplies for embedded systems and microcontrollers

Detailed and Complete Alternative Models

1. LT8610ABEUJ#PBF - 42V, 2.5A Synchronous Step-Down Regulator
2. LT1763CS8-3.3#PBF - 500mA, Low Dropout Linear Regulator
3. LT3080EST#PBF - Adjustable 1.1A Single Resistor Low Dropout Regulator
4. LT3970EMSE#PBF - 1.5A, 60V Step-Down Switching Regulator
5. LT3094EDD#PBF - 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator

These alternative models offer similar functionality and can be considered as substitutes for the LTC3617IUDD based on specific application requirements.

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