LTC1877EMS8

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LTC1877EMS8

Switching Voltage Regulators LTC1877 - High Efficiency Monolithic Synchronous Step-Down Regulator

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Spécifications

Vue d'ensemble

Description

The LTC1877EMS8 is a high-performance, synchronous step-down (buck) voltage regulator designed by Analog Devices. It features a wide input voltage range of 4.5V to 20V, making it suitable for various applications, including battery-powered devices and automotive systems. This device can deliver up to 1A of output current with a high efficiency of up to 95%, minimizing heat generation and extending battery life.
The LTC1877 includes integrated power switches, simplifying the design and reducing the number of external components needed. It operates with a frequency of 300kHz, offering a good balance between efficiency and component size. The device also provides features such as voltage feedback, an output voltage range adjustable from 1.25V to the input voltage, and overcurrent protection, ensuring robust performance in demanding environments.
With a small 8-lead MSOP package, the LTC1877EMS8 is ideal for space-constrained applications and is widely used in portable electronics, telecommunication devices, and industrial equipment.

Features

The LTC1877EMS8 is a high-performance, low-power step-up (boost) DC-DC converter designed for a variety of applications. Key features include:
1. Wide Input Voltage Range: Operates from 2.5V to 12V, making it suitable for battery-powered devices.
2. Output Voltage Adjustment: The output voltage can be adjusted from 2.5V to 12V via external resistors.
3. High Efficiency: Typically achieves efficiencies over 90%, which extends battery life.
4. Low Quiescent Current: Features low quiescent current for improved efficiency during light loads.
5. Built-in Switching Frequency: Operates at a fixed frequency of 1.2MHz, allowing for smaller external components.
6. Current Limit Protection: Integrated current limit prevents damage during load transients.
7. Compact Package: Available in an 8-lead MSOP package for space-constrained designs.
8. Thermal Shutdown Protection: Ensures reliability by preventing overheating.
These features make the LTC1877EMS8 ideal for portable and battery-operated devices requiring efficient power conversion.

Package

The LTC1877EMS8 is packaged in an 8-lead MSOP (Micro Small Outline Package). This surface-mount package is designed for efficient thermal performance and small footprint applications.

Pinout

The LTC1877EMS8 is an 8-pin MSOP (Mini Small Outline Package) integrated circuit. It is a high-efficiency, step-up (boost) voltage converter designed for applications requiring a regulated output voltage from a lower input voltage.
### Pin Count:
- Total Pins: 8
### Pin Functions:
1. VIN (Pin 1): Input voltage supply.
2. GND (Pin 2): Ground reference.
3. SW (Pin 3): Switch node connected to the inductor.
4. VOUT (Pin 4): Output voltage.
5. COMP (Pin 5): Compensation node for stability and performance.
6. FB (Pin 6): Feedback pin for voltage regulation.
7. ISNS (Pin 7): Current sense input for overcurrent protection.
8. SHDN (Pin 8): Shutdown control input to enable or disable the device.
The LTC1877 is widely used in battery-powered devices, portable electronics, and other low-power applications due to its efficient performance.

Manufacturer

The LTC1877EMS8 is manufactured by Analog Devices, Inc. Analog Devices is a semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing integrated circuits (ICs). Founded in 1965, the company is known for its innovative solutions in various applications, including communications, automotive, healthcare, industrial automation, and consumer electronics. Analog Devices focuses on providing advanced technologies and products that enable the efficient processing of real-world signals, catering to a wide range of industries and applications.

Application

The LTC1877EMS8 is a high-speed, high-precision voltage and current mode PWM controller used in various applications, including DC-DC converters, power supplies, and battery management systems. Its ability to efficiently manage power conversion makes it suitable for use in telecom, industrial, and automotive systems, as well as in consumer electronics and renewable energy systems.

Equivalent

Equivalent products to the LTC1877EMS8 include the LM2576, LM2577, and MIC2210. These alternatives may vary in specifications like input/output voltage range, current capability, and features, so it's essential to check datasheets for compatibility with your specific application.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

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