LM117H/883

Name: LM117H/883
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

Robust LDO designed for military applications, offering precise voltage regulation and a wide range of adjustability

1,000 Effective Inventory

LM117H/883

Effective Inventory1,000

Robust LDO designed for military applications, offering precise voltage regulation and a wide range of adjustability

Manufacturer Part # : LM117H/883
Package/Case: TO-CAN (NDT)-3
Part Status : Active
Brand: Texas Instruments
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

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All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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LM117H/883 DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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LM117H/883 Details

The LM117H/883 is a high-performance, adjustable voltage regulator from Texas Instruments, designed for reliable power supply in various applications. This device features a wide operating temperature range, low dropout voltage, and high current output, making it suitable for industrial control systems, automotive electronics, and other demanding environments.

Pinout

1 (VOUT): Regulated Output Voltage
2 (ADJ): Adjustable Input Voltage
3 (GND): Ground
4 (VIN): Input Voltage

Key Features

Wide Operating Temperature Range: -40°C to 150°C
Low Dropout Voltage: 0.5V at 1A, 0.8V at 2A
High Current Output: Up to 3A continuous current
Adjustable Output Voltage: 1.25V to 37V
Low Noise and Ripple: Typically less than 10mVp-p

Applications

Industrial Control Systems: Suitable for industrial control systems, automation, and process control applications.
Automotive Electronics: Ideal for automotive electronics, such as engine management systems, ABS, and airbag systems.
Medical Devices: Used in medical devices, including patient monitoring equipment, defibrillators, and ultrasound machines.

Where to Use

The LM117H/883 is suitable for applications that require a reliable, adjustable voltage regulator with high current output and low dropout voltage. It is ideal for systems operating in harsh environments, such as industrial control systems, automotive electronics, and medical devices.

How to Use

To use the LM117H/883, connect the input voltage (VIN) to the adjustable input voltage (ADJ) pin. Set the output voltage by adjusting the ADJ pin to the desired value. Ensure proper power supply connections to VIN and GND. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the LM117H/883 illustrates how to connect the regulator to an input voltage source and load. It includes connections for power supply, ground, and output voltage lines, ensuring proper operation and reliable power supply.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

LDO5V: A similar adjustable voltage regulator from Texas Instruments with comparable features and performance.
NCP1402: An alternative adjustable voltage regulator from ON Semiconductor offering equivalent functionality.

Complementary

The LM117H/883 can be complemented by the LM317, which offers additional features such as higher current output and enhanced thermal performance, suitable for more demanding applications.

When selecting complementary regulators, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Output options	Adjustable Output	Iout (max) (A)	1.5
Vin (max) (V)	40	Vin (min) (V)	4.2
Vout (max) (V)	37	Vout (min) (V)	1.25
Fixed output options (V)	0	Noise (µVrms)	75
Iq (typ) (mA)	5	Thermal resistance θJA (°C/W)	39
Rating	Military	Load capacitance (min) (µF)	0
Regulated outputs (#)	1	Accuracy (%)	4
PSRR at 100 KHz (dB)	40	Dropout voltage (Vdo) (typ) (mV)	1200
Operating temperature range (°C)	-55 to 125

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM117H/883 PDF Download

FAQs

What is LM117H/883?

The LM117H/883 is a high-reliability, adjustable voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is designed for critical applications where ruggedness and reliability are key requirements, such as aerospace, military, and industrial systems.

How Does LM117H/883 Work?

The LM117H/883 functions as an adjustable linear voltage regulator that maintains a stable output voltage regardless of variations in input voltage or load conditions. It regulates the voltage by comparing a reference voltage to the output voltage, adjusting the pass element to maintain the desired output.

How Many Pins does LM117H/883 have and What are the Functions of the Pinout Configuration?

The LM117H/883 is available in a TO-39 metal can package. The pinout configuration includes:

Input: Input voltage pin.
Output: Regulated output voltage pin.
Adjust: Provides external feedback for adjusting the output voltage.
ADJ/GND: Adjust/Ground pin for setting the output voltage and providing ground connection.

What are the Pros and Cons of LM117H/883?

Pros:

High-Reliability: Designed for critical applications with stringent reliability requirements.
Adjustable Output: Allows for fine-tuning of the output voltage to meet specific system requirements.
Overcurrent Protection: Incorporates overcurrent protection to safeguard against load faults.
Wide Operating Temperature Range: Can operate over a wide temperature range suitable for harsh environments.

Cons:

Cost: Higher cost compared to standard voltage regulators due to high-reliability specifications.
Package Size: The metal can package may require special handling and mounting considerations.
External Components: Some applications may require additional external components for stability and performance optimization.

Are There Any Equivalents/Alternatives to LM117H/883 for Recommendation?

The LM317H from Texas Instruments is a similar adjustable voltage regulator offering high reliability.
Alternatives to the LM117H/883 include the LT1086 from Linear Technology and the ADJ111 from Analog Devices for high-reliability applications.