LTC3614MPUDD#PBF

Product Overview

Category

The LTC3614MPUDD#PBF belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for voltage regulation and power management in various electronic devices.

Characteristics

• High efficiency power conversion
• Wide input voltage range
• Low quiescent current
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection

Package

The LTC3614MPUDD#PBF is available in a small 16-pin QFN package, which allows for easy integration into compact electronic designs.

Essence

The essence of the LTC3614MPUDD#PBF lies in its ability to efficiently regulate and manage power supply voltages in electronic devices, ensuring stable and reliable operation.

Packaging/Quantity

This PMIC is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

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

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. SW: Switching node pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the device on/off
6. SS: Soft-start capacitor connection pin
7. VOUT: Output voltage pin
8. PGND: Power ground reference pin
9. BST: Boost capacitor connection pin
10. AGND: Analog ground reference pin
11. SYNC: Synchronization pin for external clock input
12. VCC: Supply voltage pin for internal control circuitry
13. SS/TRK: Soft-start/tracking capacitor connection pin
14. PGOOD: Power good indicator pin
15. RT: External resistor connection pin for setting switching frequency
16. COMP: Compensation pin for loop stability adjustment

Functional Features

• High efficiency voltage regulation
• Fast transient response
• Adjustable soft-start time
• Synchronization capability with an external clock
• Overcurrent protection with fault flag indication
• Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages

• High efficiency power conversion leads to reduced power loss
• Wide input voltage range allows for compatibility with various power sources
• Low quiescent current minimizes power consumption during standby or idle modes
• Adjustable output voltage provides flexibility in meeting specific device requirements
• Overcurrent and thermal shutdown protections enhance system reliability

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires external components for proper operation, increasing overall system complexity

Working Principles

The LTC3614MPUDD#PBF operates as a synchronous step-down DC-DC converter. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The input voltage is stepped down to the desired output voltage using high-frequency switching and efficient power conversion techniques.

Detailed Application Field Plans

The LTC3614MPUDD#PBF finds application in a wide range of electronic devices, including but not limited to: - Portable consumer electronics - Industrial automation systems - Automotive electronics - Telecommunications equipment - Medical devices

Detailed and Complete Alternative Models

1. LTC3614EUDD#PBF
2. LTC3614IUDD#PBF
3. LTC3614MPUFD#PBF
4. LTC3614EUFD#PBF
5. LTC3614IUFD#PBF

These alternative models offer similar functionality and performance characteristics to the LTC3614MPUDD#PBF, providing options for different design requirements.

In conclusion, the LTC3614MPUDD#PBF is a power management integrated circuit that offers high efficiency voltage regulation, wide input voltage range, and various protection features. Its compact package and versatile application field make it a suitable choice for many electronic devices. However, designers should consider its limitations in terms of maximum output current and external component requirements.