LTC3126EUFD#PBF

Product Overview

Category

LTC3126EUFD#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used for voltage regulation and power conversion in various electronic devices and systems.

Characteristics

• High efficiency: The LTC3126EUFD#PBF offers excellent power conversion efficiency, minimizing energy loss during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low quiescent current: The device has a low quiescent current, ensuring minimal power consumption during standby or idle modes.
• Compact package: LTC3126EUFD#PBF comes in a small form factor package, enabling space-saving integration into electronic designs.
• Robustness: This IC is designed to withstand harsh operating conditions, ensuring reliable performance in demanding environments.

Package and Quantity

The LTC3126EUFD#PBF is available in a 4mm x 4mm QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a specified quantity of units, depending on the supplier.

Specifications

• Input Voltage Range: 2.7V to 15V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 2A
• Switching Frequency: Adjustable up to 3MHz
• Operating Temperature Range: -40°C to 125°C
• Efficiency: Up to 95%
• Quiescent Current: 60µA (typical)

Pin Configuration

The LTC3126EUFD#PBF features a 16-pin QFN package with the following pin configuration:

1. VIN: Input voltage
2. SW: Switch node connection
3. GND: Ground
4. FB: Feedback voltage input
5. SS: Soft-start capacitor connection
6. VCC: Internal regulator output
7. PGND: Power ground
8. VOUT: Output voltage
9. EN: Enable pin
10. SYNC: External synchronization input
11. RT: Oscillator frequency setting resistor
12. SS/TRK: Soft-start/tracking capacitor connection
13. AGND: Analog ground
14. COMP: Compensation node
15. BST: Boost capacitor connection
16. LX: Inductor connection

Functional Features

• Wide Input Voltage Range: The LTC3126EUFD#PBF can efficiently regulate a wide range of input voltages, making it suitable for various power supply designs.
• Adjustable Output Voltage: The device allows the user to set the desired output voltage within the specified range, providing flexibility in different applications.
• High Efficiency: With its high efficiency, the LTC3126EUFD#PBF minimizes power loss during voltage conversion, contributing to energy savings and longer battery life.
• Synchronization Capability: It supports external synchronization, enabling synchronization with other devices or systems for improved performance.
• Soft-Start Functionality: The soft-start feature ensures a controlled startup, preventing excessive inrush current and protecting the system components.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and longer battery life.
• Wide input voltage range enables versatile application possibilities.
• Compact package facilitates space-saving integration into electronic designs.
• Robust design ensures reliable performance in demanding environments.
• Soft-start functionality protects system components during startup.

Disadvantages

• Limited maximum output current (2A) may not be sufficient for high-power applications.
• Requires careful consideration of thermal management due to potential heat dissipation.

Working Principles

The LTC3126EUFD#PBF operates as a synchronous buck-boost DC-DC converter. It utilizes a combination of high-side and low-side MOSFET switches to regulate the output voltage. The device employs a pulse width modulation (PWM) control scheme to adjust the duty cycle of the switches, achieving the desired output voltage.

During operation, the input voltage is converted to a regulated output voltage through the switching action of the MOSFETs. The LTC3126EUFD#PBF incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe and reliable operation.

Detailed Application Field Plans

The LTC3126EUFD#PBF finds applications in a wide range of electronic systems, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial automation equipment - Automotive electronics - Telecommunications infrastructure - Medical devices

Its ability to handle a broad input voltage range, coupled with its high efficiency and compact package, makes it suitable for diverse power management requirements in these fields.

Alternative Models

For those seeking alternative options, several other ICs can be considered as substitutes for the LTC3126EUFD#PBF