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LTC3539EDCB-2#TRPBF

Name: LTC3539EDCB-2#TRPBF
Rating: 4.7 (12 reviews)

IC REG BOOST ADJ 2A 8DFN

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資料表 LTC3539EDCB-2#TRPBF DataSheet
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規格

Part Status	Active
Function	Step-Up
Output Configuration	Positive
Topology	Boost
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	0.5V
Voltage - Input (Max)	5V
Voltage - Output (Min/Fixed)	1.5V
Voltage - Output (Max)	5.25V
Current - Output	2A (Switch)
Frequency - Switching	2MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-WFDFN Exposed Pad
Supplier Device Package	8-DFN (2x3)
Base Product Number	LTC3539

概述

Description

The LTC3539EDCB-2#TRPBF is a highly integrated step-up (boost) DC/DC converter designed for powering portable devices from a single-cell lithium-ion or lithium-polymer battery. This device is known for its efficiency and compact design, making it suitable for applications such as LED drivers, battery-powered gadgets, and wearable electronics.
Key features include a wide input voltage range of 2.5V to 5.5V, adjustable output voltage up to 5.25V, and a maximum output current of 1A. The LTC3539 operates with a fixed switching frequency of 1.2 MHz, allowing for smaller external components, which reduces the overall footprint. Additionally, it incorporates features like output over-voltage protection, soft-start, and thermal shutdown for enhanced reliability.
The device's quiescent current is low, making it ideal for low-power applications. With its small package size (DFN or MSOP), the LTC3539EDCB-2#TRPBF is a versatile choice for engineers looking to optimize power management in compact and efficient designs.

Features

The LTC3539EDCB-2#TRPBF is a highly integrated boost converter designed for low-power applications. Key features include:
1. Wide Input Voltage Range: Operates from 2.5V to 5.5V, suitable for single-cell lithium-ion or alkaline batteries.
2. High Efficiency: Offers up to 94% efficiency, optimizing battery life.
3. Adjustable Output Voltage: Outputs between 3V to 5.5V, providing flexibility for various applications.
4. Low Quiescent Current: Consumes only 2µA in sleep mode, making it ideal for energy-sensitive devices.
5. Built-in Soft-Start: Reduces inrush current during startup to protect sensitive loads.
6. Compact Package: Available in a 10-lead MSOP package, saving space on PCBs.
7. Integrated Switch: Reduces external component count and simplifies design.
8. Overcurrent Protection: Provides safety features to prevent damage during overload conditions.
This device is well-suited for powering portable devices, sensors, and other battery-operated equipment.

Package

The LTC3539EDCB-2#TRPBF is packaged in a 10-pin DFN (Dual Flat No-lead) package, specifically measuring 3mm x 3mm.

Pinout

The LTC3539EDCB-2#TRPBF is a step-up (boost) converter from Analog Devices, specifically designed for battery-powered applications. It features a pin count of 10.
### Pin Functions:
1. SW: Switch node for the internal power switch.
2. VIN: Input voltage supply for the IC.
3. GND: Ground reference for the circuit.
4. VOUT: Boost output voltage.
5. COMP: Compensation node for stability.
6. FB: Feedback pin for output voltage regulation.
7. MODE: Mode selection for operation (PWM or PFM).
8. Rset: Resistor connection for setting the output voltage or current limit.
9. SENSE: Current sense input for current limiting.
10. C/CHRG: Charger status or capacitor connection for output.
This device is widely used in applications requiring efficient power management, such as portable devices and IoT applications.

Manufacturer

The LTC3539EDCB-2#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company known for its high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices primarily serves various sectors, including communications, automotive, industrial, healthcare, and consumer electronics. The company focuses on providing innovative solutions for signal processing, power management, and data conversion applications. Its products are widely used in advanced technologies and systems requiring precise data processing and signal integrity.

Application

The LTC3539EDCB-2#TRPBF is a low quiescent current buck-boost converter designed for applications requiring efficient power management in portable devices. Typical application areas include battery-powered devices, energy harvesting systems, wireless sensors, and IoT devices. Its ability to operate across a wide input voltage range makes it suitable for applications where the input voltage varies, such as in rechargeable battery systems.

Equivalent

The LTC3539EDCB-2#TRPBF is a synchronous buck-boost converter. Equivalent products include:
1. TPS63060 - Texas Instruments
2. MAX8603 - Maxim Integrated
3. LM2577 - Texas Instruments (for specific applications)
4. MICROCHIP MCP1640 - for lower power applications
Always verify specifications and performance characteristics for compatibility with your design.