LTC3859AEFE#TRPBF

圖片僅供參考

LTC3859AEFE#TRPBF

+物料清單

IC REG CTRLR MULT TOP 38TSSOP

365 天品質保證

7*24 小時服務保證

90-日售後保障

正品保證

規格

屬性 價值
Part Status Active
Output Type Transistor Driver
Function Step-Down, Step-Up/Step-Down
Output Configuration Positive
Topology Buck, Buck-Boost, SEPIC
Number of Outputs 3
Output Phases 2
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V
Frequency - Switching 115kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max) 99%, 100%
Synchronous Rectifier Yes
Clock Sync No
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 38-TSSOP-EP
Base Product Number LTC3859

概述

Description

The LTC3859AEFE#TRPBF is a high-performance, dual-output synchronous buck controller designed for applications requiring efficient power conversion. It features a wide input voltage range, typically from 4.5V to 60V, making it suitable for various power supply applications. This controller can drive external MOSFETs to deliver high output currents while maintaining high efficiency, which is critical for battery-operated devices and industrial applications.
Key features include programmable switching frequency, low quiescent current, and the ability to operate in both continuous and discontinuous conduction modes. It also supports features like voltage tracking, soft-start, and fault protection, enhancing reliability and flexibility in design.
The device's compact package (EFG) allows for easy integration into space-constrained designs while providing robust performance. Overall, the LTC3859AEFE#TRPBF is ideal for power management solutions in telecommunications, automotive, and computing industries, enabling designers to create efficient and reliable power supplies.

Equivalent

The LTC3859AEFE#TRPBF chip is a dual-output synchronous step-down controller. Equivalent products include the Texas Instruments TPS40210, the Maxim MAX15023, and the On Semiconductor NCP81074. These alternatives offer similar functionalities in managing dual output voltage regulation, but always check specifications for exact compatibility with your application needs.

Features

The LTC3859AEFE#TRPBF is a high-performance, synchronous step-down DC-DC controller designed for a wide range of applications. Its key features include:
1. Dual Output Capability: Supports two independent outputs for versatile power management.
2. High Efficiency: Up to 95% efficiency, enabling reduced heat generation and improved thermal performance.
3. Wide Input Voltage Range: Operates from 4.5V to 60V, making it suitable for various input sources.
4. Adjustable Output Voltage: Provides flexibility with output voltages adjustable from 0.8V to 60V.
5. Current Mode Control: Ensures excellent transient response and maintains stability over a wide range of conditions.
6. Programmable Switching Frequency: Frequency can be set between 200 kHz and 1.5 MHz, allowing optimization for size and efficiency.
7. Integrated Driver: Features built-in high-side and low-side MOSFET drivers for ease of design.
8. Soft-Start and Tracking: Provides smooth startup and output voltage tracking for multiple supplies.
These features make the LTC3859AEFE#TRPBF ideal for powering processors, FPGAs, and other demanding loads.

Pinout

The LTC3859AEFE#TRPBF is a dual-output synchronous step-down (buck) controller from Analog Devices. It has a pin count of 28.
Key functions of the pins include:
- VIN: Input voltage supply.
- SW: Switching node for the power stages.
- GND: Ground connection.
- VOUT1/VOUT2: Output voltage sensing for each channel.
- COMP: Compensation network connection for stability.
- ISEN: Current sense input for current regulation.
- PGND: Power ground for high current paths.
- SS: Soft start pin to control start-up time.
- SYNC: Synchronization for multiple controllers.
- FREQ: Frequency setting for operation.
- MODE: Operation mode selection (pulse skip or continuous).
- RAMP: Ramp capacitor connection for PWM control.
- ILIM: Current limit setting.
The LTC3859 is designed for high efficiency and flexibility in power management applications, suitable for powering processors and DSPs.

Manufacturer

The LTC3859AEFE#TRPBF is manufactured by Analog Devices, Inc., specifically under its Linear Technology division. Analog Devices is a multinational company based in Norwood, Massachusetts, that specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing integrated circuits (ICs).
The company primarily serves various industries, including automotive, industrial, communications, and consumer electronics, by providing solutions for data conversion, signal processing, power management, and embedded systems. The LTC3859A is a synchronous step-down DC/DC controller known for its efficiency and performance in power management applications, making it suitable for high-performance electronics. Analog Devices is recognized for its innovation in the semiconductor industry and its commitment to quality and reliability in its products.

Application

The LTC3859AEFE#TRPBF is a high-performance dual output synchronous buck controller used in various applications. Key areas include:
1. DC-DC Converters: Efficient power supply for processors and FPGAs.
2. Telecommunications: Powering communication equipment and networking devices.
3. Industrial Equipment: Providing reliable power in automation and control systems.
4. Data Centers: Optimizing power delivery for servers and storage systems.
5. Consumer Electronics: Power management in laptops, tablets, and smartphones.
6. Electric Vehicles: Powering auxiliary systems and battery management.
Its features enable high efficiency and precise voltage regulation across these applications.

Package

The LTC3859AEFE#TRPBF is packaged in a 40-lead LQFN (Leadframe Quad Flat No-lead) package. This type of package offers a compact design suitable for efficient thermal performance and is ideal for high-density applications.

與LTC3859AEFE#TRPBF相關的產品