LTC3647IFE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 24-Lead TSSOP
• Essence: Voltage Regulator
• Packaging/Quantity: Tube/100 pieces

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to 5.5V
• Maximum Output Current: 4A
• Switching Frequency: 1MHz
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3647IFE has a total of 24 pins. The pin configuration is as follows:

1. VIN: Input Voltage
2. GND: Ground
3. SW: Switch Node
4. FB: Feedback Voltage
5. VOUT: Output Voltage
6. EN: Enable Pin
7. SS/TRK: Soft-Start/Tracking
8. PG: Power Good Indicator
9. VCC: Supply Voltage
10. AGND: Analog Ground
11. BST: Boost Capacitor Connection
12. LX: Inductor Connection
13. COMP: Compensation Node
14. RT: Timing Resistor
15. SYNC: Synchronization Input
16. CLKOUT: Clock Output
17. CLKIN: Clock Input
18. CLKFB: Clock Feedback
19. CLKSET: Clock Setting
20. CLKTRK: Clock Tracking
21. CLKADJ: Clock Adjustment
22. CLKOUTB: Complementary Clock Output
23. CLKINB: Complementary Clock Input
24. CLKFB: Complementary Clock Feedback

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss.
• Low quiescent current enables energy-saving operation.
• Power good indicator provides system status information.
• Synchronization input allows for synchronization with an external clock.

Advantages and Disadvantages

Advantages: - Wide input voltage range enhances flexibility. - High efficiency reduces power consumption. - Low quiescent current prolongs battery life. - Power good indicator aids in system monitoring. - Synchronization capability facilitates integration into larger systems.

Disadvantages: - Limited maximum output current may restrict certain applications. - 24-Lead TSSOP package may require additional space on the PCB.

Working Principles

The LTC3647IFE is a voltage regulator IC that converts an input voltage within the range of 2.25V to 5.5V to a regulated output voltage between 0.6V and 5.5V. It achieves this by utilizing a high-frequency switching technique. The integrated circuit incorporates various control features such as soft-start, tracking, and power good indicator to ensure stable and reliable operation.

Detailed Application Field Plans

The LTC3647IFE is suitable for a wide range of applications, including but not limited to:

1. Portable electronic devices: Provides efficient power management for smartphones, tablets, and portable media players.
2. Industrial equipment: Enables reliable voltage regulation in industrial automation systems and control panels.
3. Automotive electronics: Supports power supply requirements in automotive infotainment systems and advanced driver-assistance systems (ADAS).
4. IoT devices: Facilitates power management in Internet of Things (IoT) devices, such as smart home appliances and wearable devices.

Detailed and Complete Alternative Models

1. LTC3647HFE: Similar to LTC3647IFE, but with extended temperature range (-40°C to 150°C).
2. LTC3647GFE: Similar to LTC3647IFE, but with a different package (28-Lead SSOP).
3. LTC3647IFE-1: Similar to LTC3647IFE, but with improved efficiency and lower quiescent current.

These alternative models offer similar functionality and can be considered as substitutes for the LTC3647IFE in various applications.

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