LT1117CST-3.3

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LT1117CST-3.3

LDO Voltage Regulators LT1117 - 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V,3.3V, 5V

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Specifications

Overview

Description

The LT1117CST-3.3 is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 3.3V. It features a maximum output current of 800mA, making it suitable for a variety of applications including powering microcontrollers, sensors, and other low-power devices. The device operates with a dropout voltage of typically 1.2V at full load, allowing it to maintain regulation with input voltages as low as 4.5V.
Key features include low quiescent current, fast transient response, and built-in protection mechanisms such as thermal shutdown and current limiting. The LT1117CST-3.3 comes in a compact SO-8 package, which is advantageous for space-constrained designs. It is compatible with various input capacitors and requires minimal external components, simplifying the design process.
This regulator is widely used in battery-powered applications and other scenarios where efficiency and reliability are critical. Overall, the LT1117CST-3.3 is a versatile choice for engineers seeking a robust voltage regulation solution.

Features

The LT1117CST-3.3 is a low dropout (LDO) linear voltage regulator designed to provide a stable output voltage of 3.3V with a maximum output current of 800mA. Key features include:
1. Low Dropout Voltage: Typically 1.2V at full load, allowing operation with minimal input-output voltage differential.
2. Wide Input Voltage Range: Accepts input voltages from 4.75V to 20V.
3. Built-in Thermal Protection: Prevents overheating and damage by shutting down if the junction temperature exceeds safe limits.
4. Low Quiescent Current: Typically 5mA, enhancing efficiency in battery-operated devices.
5. Fast Transient Response: Ensures stability during load changes.
6. Internal Short-Circuit Protection: Offers reliable operation by limiting output current.
7. SOT-223 Package: Compact, surface-mount design suitable for space-constrained applications.
These features make the LT1117CST-3.3 ideal for various applications, including microcontrollers, RF circuits, and other sensitive electronics requiring stable voltage regulation.

Package

The LT1117CST-3.3 is housed in a SOT-223 package type. This surface-mount package is compact and designed for efficient thermal performance in voltage regulator applications.

Pinout

The LT1117CST-3.3 is a low dropout (LDO) voltage regulator with a 3.3V output. It comes in a 3-pin SOT-223 package. The pinout is as follows:
1. Input (VIN): This pin receives the input voltage, which should be higher than the output voltage by at least the dropout voltage.

2. Output (VOUT): This pin delivers the regulated output voltage of 3.3V.
3. Ground (GND): This pin is used for the ground reference of the circuit.
The LT1117CST-3.3 features low dropout voltage, high output current capability, and excellent load and line regulation, making it suitable for various applications in powering sensitive electronics.

Manufacturer

The LT1117CST-3.3 is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a prominent American multinational company that specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing integrated circuits (ICs). Founded in 1965, the company focuses on providing innovative solutions for various applications, including communications, automotive, industrial, and consumer electronics. ADI is known for its commitment to quality and performance, making it a key player in the semiconductor industry. The LT1117CST-3.3 is a low-dropout (LDO) voltage regulator commonly used in power management applications.

Application

The LT1117CST-3.3 is a low dropout (LDO) voltage regulator primarily used in power management applications. Its key areas include powering microcontrollers, sensors, and other digital circuits in handheld devices, automotive systems, and industrial equipment. It provides stable 3.3V output from higher input voltages while ensuring low noise and high accuracy, making it suitable for telecommunications, consumer electronics, and battery-operated devices.

Equivalent

Equivalent products to the LT1117CST-3.3 voltage regulator include the LM1117-3.3, MCP1825S-3302E/TO, and MIC5205-3.3. These alternatives provide similar output voltage (3.3V) and are suitable for low dropout applications. Always verify specifications like maximum output current and thermal performance before replacement.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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