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STMicroelectronics Voltage Regulator 18V SOT-223 4-Pin LDL1117S33R
Specifications
| Country of Origin | China |
|---|---|
| Voltage | Regulators STMicroelectronics LDL1117S33R, Voltage Regulator 18V SOT-223 4-Pin R |
| Brand | STMicroelectronics |
| Height | 1.7mm |
| Operating Temperature Range | -40 °C to 125 °C package SOT224 |
| Length | 6.7mm |
| Model | LDL1117S33R |
| Width | 3.7mm |
| Mount Type | Surface |
| Series | LDL1117 |
| Maximum Operating Temperature | 125°C |
| Package Type | SOT-223 |
| Polarity | Positive |
| Maximum Input Voltage | 18V |
| Quiescent Current | 500μA |
| Minimum Input Voltage | 2.6V |
| Pin Count | 4 |
| Available on fixed output voltages | 1.2 V (1.185 V), 1.5 V, 1.8 V, 2.5 V, 3 V, 3.3 V, 5.0 V |
Key Features
- The device is packaged in a compact SOT-223 type with dimensions 6.7mm length, 3.7mm width, and 1.7mm height.
- Operating temperature range is from -40°C up to 125°C, suitable for various industrial and automotive applications.
- It offers high power supply rejection ratio of 87 dB at 120 Hz, improving performance in switching power supplies.
- Includes internal thermal, current, and power limitation protections ensuring reliability and safety.
- Suitable for linear regulation in DC-DC converters and direct regulation in SMPS systems.
- Positive polarity regulator delivering stable fixed output voltages including 1.2V, 1.5V, 1.8V, 2.5V, 3V, 3.3V, and 5V options.
Product Description
STMicroelectronics LDL1117S33R is a high-performance voltage regulator featuring a maximum input voltage of 18V and a maximum output current of 1.2A. This 4-pin SOT-223 package surface mount device is designed for efficient power management in electronic circuits, offering a typical dropout voltage of 350mV at 1.2A.
It exhibits a high power supply rejection ratio (PSRR) of 87 dB at 120 Hz, ensuring excellent noise filtering for sensitive electronics. The regulator supports an input voltage range from 2.5 V to 18 V, making it versatile for various power supply configurations.
Equipped with internal current limit, short-circuit protection (SOA), and thermal shutdown, the LDL1117S33R ensures robust and reliable operation in demanding industrial and commercial environments. The device maintains stable performance over a wide temperature range from -40 °C to 125 °C.
This regulator is ideal for use in switching mode power supplies (SMPS) and as secondary linear regulation in DC-DC converters. It supports multiple fixed output voltage options including 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V, enabling compatibility with a broad range of electronic applications.
Compact surface mount design with low quiescent current of 500μA. High PSRR for enhanced power quality in electronic circuits. Wide operating temperature range suitable for industrial use. Built-in protections ensure device longevity and reliability.
Multiple fixed voltage outputs for flexible application integration.
This voltage regulator is particularly suited for industrial electronics, consumer devices, automotive systems, and power management applications requiring stable voltage regulation and efficient thermal performance.
Browse the Electronics & Electricals > Power Management ICs > Voltage Regulator category at EnvMart for a wide selection of reliable Voltage Regulators including the STMicroelectronics LDL1117S33R model.
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Frequently Asked Questions
The maximum input voltage for this voltage regulator is 18V.
This voltage regulator has a maximum output current rating of 1.2A.
The operating temperature range is from -40 °C to 125 °C, making it suitable for various environments.
It offers multiple fixed output voltage options including 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V.
The LDL1117S33R is packaged in a compact SOT-223 type.
The typical dropout voltage is 350mV at 1.2A.
It includes internal current limit, short-circuit protection, and thermal shutdown to ensure reliable operation.
The quiescent current is 500μA, which contributes to its efficiency.
The dimensions are 6.7mm in length, 3.7mm in width, and 1.7mm in height.
Yes, it is suitable for various industrial and automotive applications due to its wide operating temperature range.
The device exhibits a high power supply rejection ratio of 87 dB at 120 Hz, enhancing its performance in sensitive applications.
This model is designed for surface mounting.
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