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LT3509EDE#TRPBF

Name: LT3509EDE#TRPBF
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 700MA DL 14DFN

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規格

Part Status	Active
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	2
Voltage - Input (Min)	3.6V
Voltage - Input (Max)	36V
Voltage - Output (Min/Fixed)	0.8V
Voltage - Output (Max)	34.2V
Current - Output	700mA
Frequency - Switching	260kHz ~ 2.15MHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	14-WFDFN Exposed Pad
Supplier Device Package	14-DFN (4x3)
Base Product Number	LT3509

概述

Description

The LT3509EDE#TRPBF is a high-efficiency, step-down (buck) DC-DC converter designed by Analog Devices. It is capable of delivering up to 3A of output current and operates over a wide input voltage range, typically from 4V to 36V. This device features an internal switch and offers a high degree of integration, reducing the number of external components needed for circuit design.
The LT3509 includes features such as adjustable output voltage, a programmable switching frequency, and support for various modes of operation, including Burst Mode® for improved efficiency at light loads. Its compact package and thermal performance make it suitable for applications in portable devices, battery-powered systems, and any application requiring efficient power regulation.
For detailed specifications, including thermal and electrical characteristics, refer to the manufacturer's datasheet.

Features

The LT3509EDE#TRPBF is a high-performance step-down (buck) regulator from Analog Devices. Here are its key features:
1. Input Voltage Range: 4.5V to 60V, suitable for a wide range of applications.
2. Output Current: Capable of delivering up to 1.5A of continuous load current.
3. Efficiency: High efficiency up to 95%, minimizing heat generation.
4. Switching Frequency: Adjustable frequency up to 1MHz, allowing for optimization of component size and performance.
5. Integrated Power Switch: Includes a high-side power MOSFET, reducing the need for external components.
6. Low Ripple: Provides low output voltage ripple for sensitive applications.
7. Thermal Protection: Features thermal shutdown for enhanced reliability.
8. Adjustable Output Voltage: Output voltage can be set between 1.215V to 56V via external resistors.
9. Compact Package: Available in a 16-lead TSSOP package, enabling space-saving designs.
These features make the LT3509EDE#TRPBF suitable for automotive, industrial, and communication applications.

Package

The LT3509EDE#TRPBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package). This package type is known for its compact size, making it suitable for applications where space is limited.

Pinout

The LT3509EDE#TRPBF is a high-performance, step-down (buck) regulator from Analog Devices, specifically designed for high-efficiency power conversion. It features a 20-pin TSSOP (Thin Shrink Small Outline Package) configuration.
Key functions of the pins include:
1. VIN: Input supply voltage.
2. SW: Switch node for the internal power switch.
3. GND: Ground reference for the device.
4. VOUT: Output voltage.
5. FB: Feedback pin for voltage regulation.
6. COMP: Compensation pin for stability.
7. RUN: Control pin to enable/disable the device.
8. SENSE+ / SENSE-: Pins for current sensing in current mode operation.
9. ISEN: Current sense input.
10. VSET: Voltage set for output adjustment.
Additionally, the device features pins for soft-start, frequency setting, and other control functions, ensuring optimal performance in various applications. Overall, the LT3509 is designed for efficient power management in battery-operated devices.

Manufacturer

The LT3509EDE#TRPBF is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices serves a wide range of applications, including communications, automotive, industrial, and healthcare sectors. The company is known for its innovative solutions that enhance performance in various electronic systems, making it a key player in the semiconductor industry.

Application

The LT3509EDE#TRPBF is a synchronous step-down DC/DC converter primarily used in applications such as power management for microcontrollers, FPGAs, and DSPs. It is suitable for industrial automation, automotive systems, telecommunications, and battery-powered devices. Its features include high efficiency, low noise operation, and the ability to handle various input voltages, making it ideal for powering sensitive electronic components in constrained environments.

Equivalent

The LT3509EDE#TRPBF is a high-efficiency step-down DC-DC converter. Equivalent products include:
1. LM2596 - Adjustable step-down voltage regulator.
2. TPS54331 - 3A step-down converter with high efficiency.
3. MIC29150 - Low dropout voltage regulator, though not a direct switcher.
4. LTC1871 - High-performance step-down controller.
Always consider specific requirements like voltage, current, and features when selecting alternatives.