LR12LG-G Power Management ICs - PMIC by Microchip Technology

High Input Voltage Adjustable 3-Terminal Linear Regulator


LR12 is a high voltage, low output current, adjustable linear regulator. It has a wide operating input voltage range of 13.2 - 100V. The output voltage can be adjusted from 1.20 - 88V, provided that the input voltage is at least 12V greater than the output voltage. The output voltage can be adjusted by means of two external resistors R1 and R2 as shown in the typical application circuits. The LR12 regulates the voltage difference between VOUT and ADJ pins to a nominal value of 1.20V. The 1.20V is amplified by the external resistor ratio R1 and R2. An internal constant bias current of typically 10µA is connected to the ADJ pin. This increases VOUT by a constant voltage of 10µA times R2. The LR12 has current limiting and temperature limiting. The output current limit is 100mA maximum and the minimum temperature limit is 125°C. An output short circuit current will therefore be limited to 100mA maximum. When the junction temperature reaches its temperature limit, the output current and/or output voltage will decrease to keep the junction temperature from exceeding its temperature limit. For SMPS start-up circuit applications, the LR12 turns off when an external voltage greater than the output voltage of the LR12 is applied to VOUT of the LR12. To maintain stability, a bypass capacitor of 100nF or larger and a minimum DC output current of 500µA are required.

Where to Buy

Prices starting from US$0.83

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Features

13.2 to 100V input voltage range
Stable with 100nF output capacitor
Adjustable 1.20 to 88V output regulation
5% reference voltage tolerance
Output current limiting, 50mA min.
10µA typical ADJ current
Over temperature protection
Available in 3 different packages

Specifications

+Vin min (V) 13.2
+Vin max (V) 100
Vout min (V) 1.2
Vout max (V) 88
Output Current (mA) 50
Dimming N/A
Parallelable N/A
Package 8-Ld SOIC, TO-92, TO-252
Features Adj. Output, Current Limiting, OTP
Pins | Packaging 8 | SOIC
Temp Range -40C to +125C
Packing Media Tape and reel (3300)

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.078
Shipping Weight (kg) 0.230303
Lead Count 8
Package Type SOIC
Package Width or Size .150In(3.90mm)
Soldering Composition Matte Tin

Alternative Descriptions

HIGH INPUT VOLTAGE ADJUSTABLE 3-TERMINAL LINEAR REGULATOR | Microchip Technology
8 SOIC 3.90mm(.150in) T/RHIGH INPUT VOLTAGE ADJUSTABLE 3-TERMINAL LINEAR REGULAT | Microchip Technology Inc. LR12LG-G | RS Americas
Linear Voltage Regulator, 0.1A, 1.2-88V, Nsoic-8 | Newark Electronics
Standard Regulator Pos 1.2V to 88V 0.1A 8-Pin SOIC | Avnet America
LINEAR VOLT REG, 0.1A, 1.2-88V, NSOIC-8 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LR12LG-G?

Additional datasheets, footprints and schematics for LR12LG-G are listed on our Part Details page. You can also find images and similar parts to LR12LG-G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LR12LG-G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LR12LG-G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LR12LG-G fall under?

The LR12LG-G is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators > Linear Voltage Regulators.

Can I view similar or alternative parts?

You can view similar parts to LR12LG-G when available in the Linear Voltage Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LR12LG-G you can contact the distributor directly for product support, shipping queries etc.

Is the LR12LG-G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for LR12LG-G have stock available?

Authorised distributors including Microchip Technology, RS Americas, Newark Electronics, Future Electronics and Avnet America have stock available or on a lead time for LR12LG-G.

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