LTM2987CY#PBF

Product Overview

Category

The LTM2987CY#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 in various electronic devices. It provides efficient regulation and control of power supply voltages, ensuring stable and reliable operation.

Characteristics

• High efficiency: The LTM2987CY#PBF offers excellent power conversion efficiency, minimizing energy losses during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Compact package: The LTM2987CY#PBF is available in a compact and space-saving package, enabling its use in small form factor devices.
• Low noise: This IC is designed to minimize output voltage ripple and noise, ensuring clean power delivery to sensitive components.

Package and Quantity

The LTM2987CY#PBF is packaged in a small outline integrated circuit (SOIC) package. Each package contains one unit of the IC.

Specifications

• Input Voltage Range: 4V to 36V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 3A
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTM2987CY#PBF features a total of 16 pins, each serving a specific function. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VOUT: Output voltage pin
4. FB: Feedback pin for voltage regulation
5. EN: Enable pin for turning the IC on/off
6. PG: Power good indicator pin
7. NC: No connection pin
8. NC: No connection pin
9. NC: No connection pin
10. NC: No connection pin
11. SW: Switching node pin for power conversion
12. SW: Switching node pin for power conversion
13. VOUT: Output voltage pin
14. GND: Ground reference pin
15. VIN: Input voltage pin
16. NC: No connection pin

Functional Features

The LTM2987CY#PBF offers several functional features that enhance its performance and usability:

1. Wide input voltage range allows compatibility with various power sources.
2. High efficiency ensures minimal energy wastage during voltage regulation.
3. Integrated power MOSFETs simplify the design and reduce external component count.
4. Soft-start functionality prevents excessive inrush current during startup.
5. Overcurrent protection safeguards against excessive load currents.
6. Thermal shutdown feature protects the IC from overheating.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and longer battery life.
• Compact package enables usage in space-constrained applications.
• Wide input voltage range provides flexibility in power source selection.
• Integrated power MOSFETs simplify circuit design and reduce component count.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Higher cost compared to non-integrated power management solutions.
• Requires careful thermal management due to compact size.

Working Principles

The LTM2987CY#PBF operates based on a switching regulator topology. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage. The input voltage is first converted to a high-frequency AC signal using a power MOSFET. This AC signal is then filtered and rectified to obtain the desired output voltage level. Feedback control continuously adjusts the duty cycle of the PWM signal to maintain the output voltage within the specified range.

Application Field Plans

The LTM2987CY#PBF finds applications in various fields, including but not limited to:

1. Consumer electronics: Power management for smartphones, tablets, and portable devices.
2. Industrial automation: Voltage regulation for control systems and motor drives.
3. Automotive electronics: Power supply control for automotive infotainment systems.
4. Telecommunications: Power management for networking equipment and base stations.
5. Renewable energy: Voltage regulation for solar power systems and wind turbines.

Alternative Models

For users seeking alternative options, here are some detailed and complete alternative models to consider:

1. LTM2988CY#PBF: Similar to LTM2987CY#PBF with higher maximum output current (5A).
2. LTM2989CY#PBF: Enhanced version with additional features such as adjustable output voltage and synchronization capability.
3. LTM2990CY#PBF: Higher power variant capable of handling up to 10A output current.

These alternative models offer varying specifications and functionalities, allowing users to choose the most suitable option based on their specific requirements.

In conclusion,