LTC3787EGN#TRPBF

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LTC3787EGN#TRPBF

IC REG CTRLR BOOST 28SSOP

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規格

Series PolyPhase®
Part Status Active
Output Type Transistor Driver
Function Step-Up
Output Configuration Positive
Topology Boost
Number of Outputs 2
Output Phases 2
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V
Frequency - Switching 105kHz ~ 760kHz
Duty Cycle (Max) 96%
Synchronous Rectifier Yes
Clock Sync No
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 28-SSOP (0.154", 3.90mm Width)
Supplier Device Package 28-SSOP
Base Product Number LTC3787

概述

Description

The LTC3787EGN#TRPBF is a high-performance, step-up (boost) converter from Analog Devices' Linear Technology division. It is designed to efficiently convert lower input voltages to higher output voltages, making it suitable for applications such as battery-powered devices, LED drivers, and portable electronics.
Key features include a wide input voltage range, high output current capability, and integrated power switches to reduce external component count. The device supports a variety of output voltage settings, which can be adjusted using external resistors. It also includes features like soft start, over-voltage protection, and thermal shutdown to enhance reliability and performance.
The LTC3787 operates at high efficiency, which is crucial for maintaining battery life in portable applications. Its compact package and robust performance make it a popular choice for designers looking to implement efficient power conversion solutions in their systems.

Features

The LTC3787EGN#TRPBF is a synchronous boost converter designed for high-efficiency power management in various applications. Key features include:
1. Wide Input Voltage Range: Operates from 2.5V to 18V, suitable for battery-powered devices.
2. Output Voltage Regulation: Can deliver adjustable output voltages up to 30V, allowing flexibility for different applications.
3. High Efficiency: Achieves efficiencies greater than 95%, minimizing heat generation.
4. Switching Frequency: Operates at a selectable frequency of up to 1MHz, enabling the use of smaller inductors and capacitors.
5. Synchronous Operation: Utilizes N-channel MOSFETs for improved efficiency compared to traditional boost converters.
6. Current Limit and Thermal Protection: Built-in features to prevent damage from overcurrent and overheating.
7. Compact Package: Available in a 16-lead TSSOP package, which is suitable for space-constrained designs.
These features make the LTC3787EGN#TRPBF ideal for portable devices, LED drivers, and other applications requiring efficient voltage boosting.

Package

The LTC3787EGN#TRPBF is packaged in a 16-lead TSSOP (Thin Shrink Small Outline Package).

Pinout

The LTC3787EGN#TRPBF is a high-performance synchronous step-up (boost) DC/DC converter. It has a total of 20 pins.
The key functions of these pins include:
1. VIN: Input voltage supply.
2. SW: Switch node for inductor connection.
3. GND: Ground reference.
4. VOUT: Output voltage feedback.
5. COMP: Compensation network connection for stability.
6. VC: Control voltage for the internal PWM.
7. ISET: Current sense setting.
8. RAMP: Timing capacitor connection for frequency control.
9. SENSE: Current sensing.
10. SS: Soft-start control.
11. PG: Power good indicator.
12. EN: Enable pin for power control.
13. FB: Feedback pin for output voltage regulation.
14. RT: Frequency setting resistor connection.
15. BOOT: Bootstrap capacitor connection for high-side gate drive.
16. ISEN: Input current sensing.
17. RCS: Current sensing resistor connection.
18. SYN: Synchronization signal input.
19. OVLO: Overvoltage lockout threshold setting.
20. TS: Temperature sensing input.
For complete specifications, refer to the manufacturer's datasheet.

Manufacturer

The LTC3787EGN#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in designing and manufacturing analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, the company serves various industries, including telecommunications, automotive, industrial, and consumer electronics. Analog Devices is known for its high-performance products, including data converters, amplifiers, and power management solutions, contributing to advancements in technology across numerous applications.

Application

The LTC3787EGN#TRPBF is a high-efficiency DC-DC converter used in applications such as power management for distributed power systems, battery-powered devices, electric vehicles, and renewable energy systems. It is suitable for step-up (boost) and step-down (buck) voltage regulation, LED drivers, and portable electronics, ensuring efficient power conversion and regulation in various electronic applications.

Equivalent

The LTC3787EGN#TRPBF is a high-efficiency boost converter. Equivalent products include:
1. TPS61030 - Texas Instruments
2. LT1302 - Linear Technology (now part of Analog Devices)
3. MAX1771 - Maxim Integrated
4. MIC2253 - Microchip Technology
Always verify specifications like input/output voltage, current ratings, and feature sets for compatibility.

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