LD1117S33

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LD1117S33

LDO Voltage Regulators

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Specifications

Overview

Description

The LD1117S33 is a low-dropout (LDO) voltage regulator specifically designed to provide a stable output voltage of 3.3V. It features a maximum output current of 800mA, making it suitable for various applications, including powering microcontrollers, sensors, and other electronic devices. The device operates with a low dropout voltage, typically around 1.2V, allowing it to maintain regulation with minimal input-to-output voltage difference.
Key features include thermal shutdown, current limiting, and an output voltage tolerance of ±1%. The LD1117 series is available in multiple fixed output voltages and can handle input voltages up to 15V. Its compact package options, such as TO-220 and SOT-223, make it ideal for space-constrained designs.
This regulator is widely used in consumer electronics, automotive, and industrial applications where efficient voltage regulation is required. Proper heat sinking may be necessary for higher current loads to ensure reliable operation.

Features

The LD1117S33 is a linear voltage regulator designed to provide a stable output voltage of 3.3V. Key features include:
1. Input Voltage Range: Accepts an input voltage from 4.75V to 15V, allowing flexibility in power supply options.
2. Output Current: Capable of delivering up to 800mA output current, suitable for various applications.
3. Low Dropout Voltage: Typically 1.2V at full load, enabling efficient operation with lower input voltages.
4. Power Dissipation: Features thermal overload protection and short-circuit protection, enhancing reliability.
5. High Accuracy: Output voltage tolerance is typically ±1%, ensuring precision in applications.
6. Package Options: Available in multiple packages, including TO-220 and SOT-223, for versatile integration.
7. Temperature Range: Operates across a wide temperature range of -40°C to +125°C, ensuring performance in diverse environments.
These features make the LD1117S33 suitable for powering microcontrollers, sensors, and other electronic devices requiring a reliable 3.3V supply.

Package

The LD1117S33 is typically available in a TO-220 package type, which features a three-terminal configuration. This package is designed for efficient heat dissipation, suitable for voltage regulation applications.

Pinout

The LD1117S33 is a low dropout (LDO) voltage regulator with a pin count of 3. Its primary function is to provide a regulated output voltage of 3.3V from a higher input voltage, typically in the range of 4.75V to 15V.
Pin Configuration:
1. Input (Vin): This pin connects to the input voltage source.
2. Output (Vout): This pin provides the regulated output voltage of 3.3V.
3. Ground (GND): This pin is connected to the ground reference.
The LD1117 series is known for its low dropout voltage and is often used in applications requiring a stable voltage supply, such as microcontrollers and other digital circuits.

Manufacturer

The LD1117S33 is a low-dropout (LDO) voltage regulator manufactured by various semiconductor companies, with STMicroelectronics being one of the prominent producers. These companies typically operate in the electronics and semiconductor industry, focusing on the design, development, and manufacturing of integrated circuits and other electronic components. Their products are widely used in consumer electronics, automotive applications, industrial equipment, and telecommunications. As part of the broader electronics sector, these manufacturers play a critical role in enabling modern electronic devices by providing essential components for power management and regulation.

Application

The LD1117S33 is a low-dropout (LDO) voltage regulator primarily used in applications requiring stable and regulated 3.3V output. Common areas include power supply for microcontrollers, sensors, and RF circuits; portable devices; telecommunications; and embedded systems. Its compact design and thermal stability make it suitable for consumer electronics, automotive applications, and battery-powered devices.

Equivalent

Equivalent products to the LD1117S33 are:
1. LM1117-3.3 - A similar low dropout regulator.
2. LT1117-3.3 - Another low dropout option from Linear Technology.
3. MIC5219-3.3 - A low dropout voltage regulator from Microchip.
4. AMS1117-3.3 - A widely used alternative with similar characteristics.
Ensure to check specifications and pin configurations for compatibility.

Shipping

Shipping MethodsWe

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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.

Payments

Payment Methods

The Payment term is 100% Prepaid.

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3. Wire Transfer