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LR12K4-G The Microchip Technology LR12K4-G is an adjustable linear voltage regulator designed for high input voltage applications. It features an output current limit and over-temperature protection.
Mfr Part #:

LR12K4-G

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology LR12K4-G is an adjustable linear voltage regulator designed for high input voltage applications. It features an output current limit and over-temperature protection.
✓ Total Stock: 71 pcs
$ Price Range: $0.28

LR12K4-G Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
71 pcs
On Request
71 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LR12K4-G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Input Voltage
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Type
PSRR
Protection Features
SVHC Present
Supplier Device Package
Supplier Package
Voltage
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LR12K4-G Description

Short technical summary and product information.

The Supertex LR12 series, including the LR12K4-G, is a high voltage, low output current, adjustable linear regulator. It operates with an input voltage range from 13.2V to 100V and can provide an adjustable output voltage from 1.20V to 88V. This regulator is suitable for applications requiring stable voltage regulation under varying input conditions.

 

Key electrical characteristics include a 5% reference voltage tolerance, a minimum output current of 50mA, and a typical ADJ current of 10µA. The device incorporates output current limiting, with a maximum limit of 100mA, and over-temperature protection to ensure safe operation. Stability is maintained with a 100nF output capacitor and a minimum DC output current of 500µA.

 

The LR12K4-G is available in a TO-252 (D-Pak) surface mount package, making it suitable for compact designs. It is designed for applications such as DC/DC SMPS startup circuits, adjustable high voltage constant current sources, industrial controls, motor controls, battery-powered systems, power supplies, telecom applications, LED drivers, and automotive applications.

LR12K4-G Quick Information

Product Type: Linear Voltage Regulator
Canonical Name: LR12K4-G High Input Voltage, Adjustable 3-Terminal Linear Regulator
Subcategory: PMIC - Voltage Regulators - Linear

LR12K4-G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LR12K4-G Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LR12K4-G Features

  • High input voltage range of 13.2V to 100V.
  • Adjustable output voltage from 1.20V to 88V.
  • Output current limited to 100mA maximum.
  • Over temperature protection included.
  • Surface mount TO-252 package.

LR12K4-G Applications

  • Used in DC/DC SMPS startup circuits.
  • Suitable for high voltage constant current sources.
  • Applicable in industrial control systems.
  • Designed for automotive applications.
  • Ideal for LED driver circuits.

LR12K4-G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LR12K4-G?

The input voltage range is 13.2V to 100V.

What is the adjustable output voltage range of the LR12K4-G?

The output voltage can be adjusted from 1.20V to 88V.

What is the maximum output current for the LR12K4-G?

The output current is limited to a maximum of 100mA.

What protection features does the LR12K4-G offer?

The LR12K4-G includes over-temperature protection.

What is the operating temperature range for the LR12K4-G?

The operating ambient temperature range is -40°C to 85°C.

How is the LR12K4-G mounted?

The LR12K4-G is a surface mount device.

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