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LTC3538EDCB#TRPBF

Name: LTC3538EDCB#TRPBF
Rating: 4.7 (12 reviews)

IC REG BUCK BOOST ADJ 800MA 8DFN

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資料表 LTC3538EDCB#TRPBF DataSheet
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規格

Part Status	Active
Function	Step-Up/Step-Down
Output Configuration	Positive
Topology	Buck-Boost
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	2.4V
Voltage - Input (Max)	5.5V
Voltage - Output (Min/Fixed)	1.8V
Voltage - Output (Max)	5.25V
Current - Output	800mA
Frequency - Switching	1MHz
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	LTC3538

概述

Description

The LTC3538EDCB#TRPBF is a highly efficient, low quiescent current buck-boost DC-DC converter designed by Analog Devices (formerly Linear Technology). It operates from an input voltage range of 2.3V to 5.5V, making it suitable for battery-operated devices. The device can provide a regulated output voltage, either stepping up or down from the input voltage, which is particularly useful in applications where the input voltage may vary above or below the desired output level.
Key features include a wide input voltage range, high efficiency (up to 95%), low output ripple, and the ability to deliver up to 1A of output current. The LTC3538 includes a low-power shutdown mode, adjustable output voltage, and is available in a compact 10-lead 3mm x 3mm DFN package, which is ideal for space-constrained applications. Typical applications include portable electronics, wireless sensors, and battery-powered devices where efficient power management is critical.

Features

The LTC3538EDCB#TRPBF is a highly efficient, low quiescent current boost converter designed for battery-powered applications. Key features include:
1. Input Voltage Range: Operates from 2.5V to 5.5V, making it suitable for single-cell lithium-ion and alkaline batteries.
2. Output Voltage: Adjustable output voltage up to 5V, allowing flexibility for various applications.
3. Efficiency: High efficiency (up to 95%) reduces heat generation and extends battery life.
4. Low Quiescent Current: Typically 1.5 µA in sleep mode, which is ideal for energy-sensitive applications.
5. Switching Frequency: 1.2 MHz fixed switching frequency enabling smaller external components.
6. Current Limit: Internal current limit for overcurrent protection.
7. Soft-Start Function: Reduces inrush current during startup.
8. Compact Package: Available in a 3mm x 3mm DFN package, suitable for space-constrained applications.
Overall, it is designed for efficiency and convenience in portable devices, with robust features for reliable performance.

Package

The LTC3538EDCB#TRPBF is packaged in a 10-lead (3mm x 3mm) DFN (Dual Flat No-lead) package. This compact surface-mount package is designed for efficient thermal performance and space-saving in electronic designs.

Pinout

The LTC3538EDCB#TRPBF is a low noise, step-up DC/DC converter with a pin count of 12.
Here are the key pin functions:
1. VIN: Input voltage.
2. GND: Ground reference.
3. SW: Switch node.
4. VOUT: Output voltage.
5. FB: Feedback pin for voltage regulation.
6. COMP: Compensation network connection.
7. MODE: Mode selection (burst or continuous).
8. SENSE: Current sense pin.
9. RSET: Resistor connection to set current limit.
10. EN: Enable pin for activation.
11. LIM: Current limit adjustment.
12. PG: Power good output.
This IC is suitable for applications needing low quiescent current and high efficiency in portable devices.

Manufacturer

The LTC3538EDCB#TRPBF is manufactured by Analog Devices, Inc., specifically under its subsidiary, Linear Technology, which was acquired by Analog Devices in 2017. Analog Devices is a prominent company in the semiconductor industry, specializing in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Their products are widely used in various applications, including industrial automation, automotive electronics, consumer electronics, and communications systems. The LTC3538 is a highly integrated DC-DC converter designed for efficient power management in portable devices.

Application

The LTC3538EDCB#TRPBF is a high-efficiency, synchronous buck-boost converter designed for battery-powered applications. Its primary application areas include powering portable devices, such as smartphones, tablets, and wearables, as well as IoT devices and wireless sensors. It is suitable for energy harvesting systems and can manage varying input voltage ranges from batteries and supercapacitors, ensuring stable output for low-voltage electronics.

Equivalent

The LTC3538EDCB#TRPBF is a boost converter. Equivalent products include:
1. TPS61030 (Texas Instruments)
2. MT3608 (Monolithic Power Systems)
3. LTC6104 (Analog Devices)
4. MAX856 (Maxim Integrated)
5. NCP1402 (ON Semiconductor)
Always verify specifications and pin compatibility before substituting.