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STMicroelectronics Voltage Regulator LDL1117S18R 18V 1.2A SOT-223 3-Pin
Specifications
| Country of Origin | India |
|---|---|
| Voltage | Regulators STMicroelectronics LDL1117S18R, Voltage Regulator 18V SOT-223 3-Pin R |
| Brand | STMicroelectronics |
| Height | 1.7mm |
| Operating Temperature Range | -40 °C to 125 °C package SOT224 |
| Length | 6.7mm |
| Model | LDL1117S18R |
| 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 | 3 |
Key Features
- Operates with a typical dropout voltage of 350 mV at 1.2 A load.
- High power supply rejection ratio of 87 dB at 120 Hz ensures stable voltage regulation.
- Includes internal thermal, current, and power limitation protections.
- Wide operating temperature range from -40 °C to 125 °C.
- Suitable for linear regulation in SMPS and DC-DC converter applications.
- Positive polarity regulator with surface mount installation.
Product Description
STMicroelectronics LDL1117S18R is a high performance voltage regulator designed to provide a regulated output voltage with a maximum load current of 1.2 A. It supports a wide input voltage range from 2.5 V up to 18 V and operates with a low dropout voltage of typically 350 mV at full load, making it efficient for power management in electronic circuits.
Housed in a compact and surface-mount SOT-223 package with 3 pins, this device offers a high power supply rejection ratio of 87 dB at 120 Hz, gradually decreasing to above 40 dB at 100 kHz, ensuring minimal output ripple from noisy power supplies.
The LDL1117S18R includes robust protection features such as internal thermal shutdown, current limiting, and power limiting to enhance reliability and safeguard the regulator against fault conditions. With an operating temperature range of -40 °C to 125 °C, it is suited for usage in automotive and industrial environments that demand high endurance.
Typical applications include use in switched-mode power supplies (SMPS), secondary linear regulation in DC-DC converters, and other electronics requiring stable and efficient voltage regulation.
Provides a maximum output current of 1.2 A for various power needs. Operates efficiently with a dropout voltage of 350 mV at rated current. High power supply rejection ratio reduces noise on the output voltage. Comprehensive protection with thermal shutdown and current limiting.
Compact SOT-223 package suitable for surface mounting. Wide input voltage range from 2.5 V to 18 V offers design flexibility. Stable operation between -40 °C to 125 °C enables automotive and industrial use.
This regulator is ideal for industrial, electronic component assemblies, power supplies, automotive, and other uses requiring precise voltage regulation. Choose STMicroelectronics LDL1117S18R for reliable power management in your designs.
Explore more high-quality Voltage Regulators and power management ICs in the Electronics & Electricals category on EnvMart for your industrial and commercial applications.
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Frequently Asked Questions
The maximum load current for this voltage regulator is 1.2 A.
It supports an input voltage range from 2.5 V up to 18 V.
The typical dropout voltage at a full load of 1.2 A is 350 mV.
It has a high power supply rejection ratio of 87 dB at 120 Hz, decreasing to above 40 dB at 100 kHz.
The dimensions of the SOT-223 package are 6.7 mm in length, 3.7 mm in width, and 1.7 mm in height.
The operating temperature range is from -40 °C to 125 °C.
This model uses surface mount installation.
It includes internal thermal shutdown, current limiting, and power limiting protections.
The quiescent current for this voltage regulator is 500 μA.
It operates with positive polarity.
It is typically used in switched-mode power supplies (SMPS) and as secondary linear regulation in DC-DC converters.
The country of origin for this voltage regulator is India.
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