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LT3470ITS8#TRPBF

Name: LT3470ITS8#TRPBF
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 200MA TSOT23-8

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資料表 LT3470ITS8#TRPBF DataSheet
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規格

Part Status	Active
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	4V
Voltage - Input (Max)	40V
Voltage - Output (Min/Fixed)	1.25V
Voltage - Output (Max)	16V
Current - Output	200mA
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	SOT-23-8 Thin, TSOT-23-8
Supplier Device Package	TSOT-23-8
Base Product Number	LT3470

概述

Description

The LT3470ITS8#TRPBF is a high-performance, synchronous step-down (buck) DC-DC converter designed by Analog Devices. It features a wide input voltage range, typically from 4.5V to 60V, making it suitable for various applications, including industrial and automotive systems. The converter can deliver up to 1A of output current while maintaining high efficiency and low quiescent current, which enhances battery life in portable devices.
Key features include built-in power switches, adjustable output voltage, and a power-good indicator. It utilizes a constant frequency, current mode control architecture for improved stability and transient response. The device comes in an 8-lead MSOP package, making it compact for space-constrained designs. Overall, the LT3470ITS8#TRPBF is ideal for applications requiring efficient voltage regulation from a higher input voltage to a lower output voltage.

Features

The LT3470ITS8#TRPBF is a high-performance, low-noise, step-up DC/DC converter designed for powering OLED displays and other applications requiring a boost function. Key features include:
1. Input Voltage Range: Operates from 2.5V to 5V, supporting a variety of battery types.
2. Output Voltage: Adjustable output voltage up to 34V, enabling flexibility for different load requirements.
3. High Efficiency: Achieves efficiencies up to 95%, helping to extend battery life.
4. Current Limit: Integrated current limit for enhanced safety and protection against overload.
5. Low Quiescent Current: Features a low quiescent current, making it suitable for battery-powered applications.
6. Built-In Switch: Integrated power switch simplifies design and reduces component count.
7. Synchronous Operation: Reduces power losses and improves performance at higher loads.
These features make the LT3470ITS8#TRPBF ideal for portable devices, medical equipment, and other applications that require efficient power conversion.

Package

The LT3470ITS8#TRPBF is packaged in an 8-lead Thin Shrink Small Outline Package (TSSOP). This type of package is designed for compact applications, providing efficient thermal performance and space-saving advantages.

Pinout

The LT3470ITS8#TRPBF is an integrated circuit with an 8-pin (SOT-23 package) configuration. It is a high-efficiency step-up (boost) converter designed for driving white LEDs.
### Pin Count and Functions:
1. VIN (Pin 1): Input voltage.
2. SW (Pin 2): Switch node for the inductor.
3. GND (Pin 3): Ground reference.
4. COMP (Pin 4): Compensation node for stability.
5. CSN (Pin 5): Current sense negative input.
6. CSP (Pin 6): Current sense positive input.
7. Rset (Pin 7): Resistor connection for setting the output current.
8. LED (Pin 8): Output for LED driver.
This device is typically used in applications where a regulated output is needed for LED illumination, providing a compact solution for portable devices.

Manufacturer

The LT3470ITS8#TRPBF is manufactured by Analog Devices, Inc. (ADI), a prominent semiconductor company. Analog Devices specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company is known for its innovative solutions in various sectors, including communications, automotive, industrial, and consumer electronics. With a strong focus on precision and performance, Analog Devices provides essential components for applications requiring high reliability and efficiency, such as power management, data converters, and signal processing.

Application

The LT3470ITS8#TRPBF is a high-efficiency boost converter primarily used in battery-powered applications. Its application areas include portable devices, LED drivers, energy harvesting systems, and power management in consumer electronics. It is suitable for providing stable output voltage from low input voltage sources, making it ideal for mobile devices, wearable electronics, and IoT applications.

Equivalent

Equivalent products to the LT3470ITS8#TRPBF chip include the TPS63020 from Texas Instruments, the MAX15004 from Maxim Integrated, and the LTC3676 from Analog Devices. These alternatives offer similar functionality in step-up/step-down voltage regulation, but always verify specific parameters like input/output voltage, current ratings, and package compatibility before substituting.