LTC3616MPUDD

Product Overview

Category: Power Management ICs
Use: Voltage Regulator
Characteristics: High Efficiency, Low Quiescent Current
Package: 16-Lead QFN
Essence: Step-Down (Buck) Converter
Packaging/Quantity: Tube/100 pieces

Specifications

• Input Voltage Range: 2.25V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1A
• Switching Frequency: 1MHz
• Quiescent Current: 20µA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC3616MPUDD features a 16-lead QFN package with the following pin configuration:

1. VIN: Input Voltage
2. SW: Switch Node Connection
3. GND: Ground
4. FB: Feedback Voltage
5. SS: Soft-Start
6. EN: Enable
7. PG: Power Good Indicator
8. VOUT: Output Voltage
9. VOUT: Output Voltage
10. VOUT: Output Voltage
11. VOUT: Output Voltage
12. VOUT: Output Voltage
13. VOUT: Output Voltage
14. VOUT: Output Voltage
15. VOUT: Output Voltage
16. VOUT: Output Voltage

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during conversion.
• Low quiescent current enables energy-saving operation.
• Power good indicator provides system status monitoring.
• Soft-start feature prevents excessive inrush current.

Advantages and Disadvantages

Advantages: - High efficiency results in improved power utilization. - Wide input voltage range accommodates various power sources. - Low quiescent current prolongs battery life in portable devices. - Power good indicator enhances system reliability.

Disadvantages: - Limited maximum output current may restrict certain applications. - Higher switching frequency may introduce additional noise.

Working Principles

The LTC3616MPUDD is a step-down (buck) converter that efficiently converts a higher input voltage to a lower output voltage. It utilizes a high-frequency switching regulator to achieve this conversion. The input voltage is stepped down by controlling the duty cycle of the internal power switch, which is synchronized with the external clock signal. This switching action allows for efficient power transfer from the input to the output, minimizing power loss.

Detailed Application Field Plans

The LTC3616MPUDD is suitable for a wide range of applications, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial equipment - Automotive electronics - Distributed power systems

Detailed and Complete Alternative Models

1. LTC3616EUDD: 16-Lead QFN package, same specifications as LTC3616MPUDD.
2. LTC3616IUDD: 16-Lead QFN package, same specifications as LTC3616MPUDD.
3. LTC3616MUDD: 16-Lead QFN package, same specifications as LTC3616MPUDD.

These alternative models provide similar functionality and performance to the LTC3616MPUDD, allowing for flexibility in design choices.

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