LTC3265MPFE#PBF

Product Overview

Category

The LTC3265MPFE#PBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power management applications, providing regulated positive and negative voltages from a single input voltage source.

Characteristics

• Regulated positive and negative output voltages
• Single input voltage source
• High efficiency
• Low quiescent current
• Small package size
• Wide input voltage range

Package

The LTC3265MPFE#PBF is available in a small 16-pin plastic QFN package, which ensures ease of integration into various electronic systems.

Essence

The essence of the LTC3265MPFE#PBF lies in its ability to efficiently convert a single input voltage into regulated positive and negative output voltages, making it suitable for a wide range of power management applications.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 2.7V to 38V
• Positive Output Voltage Range: 1.8V to 15V
• Negative Output Voltage Range: -1.8V to -15V
• Quiescent Current: 40µA (typical)
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC3265MPFE#PBF features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VOUT+: Positive output voltage pin
4. VOUT-: Negative output voltage pin
5. EN: Enable pin
6. FB+: Positive feedback pin
7. FB-: Negative feedback pin
8. SS: Soft-start capacitor pin
9. GND: Ground reference pin
10. VOUT-: Negative output voltage pin
11. VOUT+: Positive output voltage pin
12. GND: Ground reference pin
13. VOUT-: Negative output voltage pin
14. VOUT+: Positive output voltage pin
15. GND: Ground reference pin
16. VIN: Input voltage pin

Functional Features

The LTC3265MPFE#PBF offers several functional features that enhance its performance and usability:

1. Single input voltage source for both positive and negative outputs.
2. Integrated low dropout (LDO) linear regulators for improved voltage regulation.
3. Low quiescent current ensures minimal power consumption during standby or idle modes.
4. Soft-start feature prevents excessive inrush current during startup.
5. Overcurrent and overtemperature protection mechanisms safeguard the device and connected components.

Advantages and Disadvantages

Advantages

• Efficient conversion of a single input voltage into regulated positive and negative voltages.
• Wide input voltage range allows compatibility with various power sources.
• Small package size enables integration into space-constrained applications.
• Low quiescent current minimizes power consumption.
• Overcurrent and overtemperature protection ensure device and system safety.

Disadvantages

• Limited output voltage range may not be suitable for certain specialized applications.
• Requires external capacitors for proper operation, adding to the overall component count.

Working Principles

The LTC3265MPFE#PBF operates on the principle of charge pump voltage conversion. It utilizes an internal oscillator to generate high-frequency switching signals, which drive the charge pumps responsible for voltage conversion. The input voltage is stepped up or down, depending on the desired output voltage polarity, and regulated by the integrated LDO linear regulators. This ensures stable and accurate output voltages.

Detailed Application Field Plans

The LTC3265MPFE#PBF finds application in various fields, including but not limited to:

1. Portable electronic devices: Provides regulated positive and negative voltages for powering display panels, audio amplifiers, and other components.
2. Industrial automation: Suitable for powering sensors, actuators, and control circuits in industrial systems.
3. Automotive electronics: Enables efficient power management in automotive applications, such as infotainment systems and lighting controls.
4. Telecommunications: Used in telecom infrastructure equipment for voltage regulation and power distribution.
5. Medical devices: Provides reliable power supply for medical instruments and diagnostic equipment.

Detailed and Complete Alternative Models

1. LTC3260: Similar functionality with a different pin configuration and package type.
2. MAX889: Offers comparable power management capabilities with additional features like adjustable output voltages.
3. TPS65130: Integrated power management IC with multiple output channels and higher output voltage range.

These alternative models provide similar power management functionalities and can be considered based on specific application requirements.

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