LT1765ES8

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LT1765ES8

LT1765 - MONOLITHIC 3A, 1.25MHZ

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Vue d'ensemble

Description

The LT1765ES8 is a step-down (buck) switching voltage regulator designed by Linear Technology, now part of Analog Devices. It is capable of delivering a constant output voltage from a higher input voltage source. The device operates efficiently over a wide range of input voltages, typically from 3.3V to 25V, and can provide an output current of up to 1.5A.
Key features of the LT1765ES8 include its high efficiency, low quiescent current, and the ability to operate in both continuous and discontinuous conduction modes. It also offers thermal protection, current limiting, and a soft-start feature, which helps in reducing inrush current during startup.
The LT1765ES8 is available in an 8-lead SOIC package, making it suitable for compact designs. It is commonly used in applications such as power supplies for portable devices, distributed power systems, and automotive electronics. Its design allows for minimal external components, simplifying the overall circuit design and making it a reliable choice for efficient power conversion.

Features

The LT1765ES8 is a step-down switching regulator. Key features include:
1. Input Voltage Range: It operates from a wide input voltage range of 3.3V to 25V, making it versatile for various applications.
2. Output Voltage: The regulator can provide adjustable output voltages from 1.2V to 20V with high efficiency.
3. Output Current: It supports output currents up to 1.25A.
4. Efficiency: The device is designed for high efficiency, achieving up to 90% under optimal conditions.
5. Switching Frequency: The LT1765ES8 features a fixed switching frequency of 1.25MHz, allowing for the use of smaller external components and minimizing the size of the overall design.
6. Current Mode Control: It employs current mode PWM control for excellent line and load transient response.
7. Thermal Management: Integrated thermal shutdown protection ensures reliability under thermal stress conditions.
8. Soft-Start Capability: It includes a programmable soft-start function to limit inrush current during startup.
9. Package: Available in an 8-lead SO (Small Outline) package, providing a compact and easy-to-use form factor.
These features make the LT1765ES8 suitable for applications in power management for portable devices, distributed power systems, and other electronic systems requiring efficient step-down conversion.

Package

The LT1765ES8 is a voltage regulator packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package. This type of package is commonly used for surface-mount applications, providing a compact and efficient form factor suitable for various electronic designs.

Pinout

The LT1765ES8 is an 8-pin SOIC (Small Outline Integrated Circuit) package. It is a step-down (buck) switching regulator designed for efficient voltage conversion. Here is a brief overview of its pin functions:
1. VIN (Pin 1): Input voltage supply pin for the regulator.
2. SW (Pin 2): Switch node where the inductor is connected. It switches between VIN and GND.
3. GND (Pin 3): Ground pin for the device.
4. FB (Pin 4): Feedback pin used to set the output voltage via an external resistor divider.
5. SHDN (Pin 5): Shutdown pin that can be used to turn the regulator on or off.
6. VC (Pin 6): Compensation pin for frequency compensation network to stabilize the control loop.
7. BOOST (Pin 7): Boost capacitor pin to drive the gate of the internal power switch higher than VIN for efficient switching.
8. VOUT (Pin 8): Output voltage pin where the regulated voltage is available.
The LT1765ES8 is commonly used in applications requiring efficient step-down voltage regulation with a compact pin layout.

Manufacturer

The LT1765ES8 is manufactured by Linear Technology Corporation. Linear Technology was a company specializing in designing, manufacturing, and marketing a broad range of analog integrated circuits for various markets, including telecommunications, networking, industrial, automotive, computer, instrumentation, consumer, and military and aerospace systems. In 2017, Linear Technology was acquired by Analog Devices, Inc., a company that designs and manufactures analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment.

Application

The LT1765ES8 is a step-down switching regulator used in various applications, such as power management in portable devices, telecommunications equipment, industrial systems, and automotive electronics. Its high efficiency and compact size make it ideal for use in battery-powered devices, distributed power systems, and any application requiring a compact, efficient DC-DC conversion solution with a wide input voltage range.

Equivalent

The LT1765ES8 is a step-down switching regulator from Analog Devices (formerly Linear Technology). Equivalent products with similar functionality include the Texas Instruments TPS54331, Maxim Integrated's MAX17503, and Microchip's MCP16301. These alternatives offer similar voltage conversion capabilities, output current, and efficiency, although specific features and performance may vary. Always verify the specifications and pin compatibility with your application requirements when selecting a substitute.

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.

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