LTC3555EUFD-1#TRPBF

Product Overview

Category

The LTC3555EUFD-1#TRPBF 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, such as smartphones, tablets, portable media players, and other battery-powered devices.

Characteristics

The LTC3555EUFD-1#TRPBF offers several key characteristics that make it suitable for power management tasks. It provides high efficiency power conversion, low quiescent current, and a compact form factor. Additionally, it supports multiple input sources, including USB, AC adapters, and solar panels.

Package

The LTC3555EUFD-1#TRPBF comes in a small 16-pin QFN package, which allows for easy integration into space-constrained designs.

Essence

The essence of this product lies in its ability to efficiently manage power in battery-operated devices, ensuring optimal performance and extended battery life.

Packaging/Quantity

The LTC3555EUFD-1#TRPBF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Programmable from 0.6V to 5.25V
• Maximum Output Current: Up to 500mA
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC3555EUFD-1#TRPBF features a 16-pin QFN package with the following pin configuration:

1. VIN - Input voltage
2. GND - Ground
3. VOUT - Output voltage
4. EN - Enable pin
5. PG - Power good indicator
6. LBO - Low battery output
7. VBUS - USB input voltage
8. ISET - Current limit setting
9. BAT - Battery voltage
10. INTVCC - Internal voltage supply
11. LX1 - Inductor connection 1
12. LX2 - Inductor connection 2
13. SW - Switching node
14. FB - Feedback pin
15. SS - Soft-start capacitor
16. VREF - Reference voltage

Functional Features

• Multiple Input Sources: The LTC3555EUFD-1#TRPBF supports various input sources, allowing flexibility in power supply options.
• High Efficiency: This IC offers high efficiency power conversion, minimizing energy loss and maximizing battery life.
• Low Quiescent Current: With a low quiescent current of only 30µA, the LTC3555EUFD-1#TRPBF helps conserve power when the device is in standby or idle mode.
• Programmable Output Voltage: The output voltage can be easily programmed within a wide range to meet specific device requirements.
• Power Good Indicator: The power good (PG) pin provides a signal indicating the status of the output voltage, ensuring proper power delivery.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Compact form factor
• Multiple input source support
• Programmable output voltage
• Power good indicator for reliable power delivery

Disadvantages

• Limited maximum output current (up to 500mA)
• Restricted operating temperature range (-40°C to 85°C)

Working Principles

The LTC3555EUFD-1#TRPBF operates based on a switching regulator topology. It uses an internal control loop to regulate the output voltage by adjusting the duty cycle of the internal switches. This allows for efficient power conversion from the input voltage to the desired output voltage.

Detailed Application Field Plans

The LTC3555EUFD-1#TRPBF finds applications in a wide range of battery-powered devices, including but not limited to: - Smartphones - Tablets - Portable media players - Wearable devices - IoT devices - Handheld gaming consoles

Its compact size, multiple input source support, and programmable output voltage make it suitable for various power management requirements in these devices.

Detailed and Complete Alternative Models

While the LTC3555EUFD-1#TRPBF offers several advantages, there are alternative models available in the market that cater to different specifications and requirements. Some notable alternatives include:

1. TPS63020: A buck-boost converter with higher maximum output current (up to 1A) and wider operating temperature range (-40°C to 125°C).
2. MAX77818: A power management IC specifically designed for smartphones, offering advanced features such as fast charging support and integrated fuel gauge.
3. LT3652: A solar power manager and battery charger IC, ideal for applications