79L12G-AB3-R – UTC -12V 100mA Negative Voltage Regulator

Quick Answer The 79L12G-AB3-R is a fixed -12V, 100mA negative voltage regulator from Unisonic Technologies (UTC). It is designed for local on-card regulation, providing stable negative voltage with excellent line and load regulation. Housed in a compact SOT-89 package, it includes built-in thermal overload and short circuit protection, making it ideal for dual power supply systems, op-amp negative rails, analog circuits, and industrial applications.

Current Stock at ICMASS: Strong inventory available for immediate worldwide delivery.

Key Specifications

[Download Official 79L12 Datasheet PDF]

Why Choose 79L12G-AB3-R?

• Fixed -12V output with reliable regulation performance
• Low quiescent current for better efficiency
• Built-in thermal overload and short circuit protection
• Compact SOT-89 package saves PCB space
• Good line and load regulation characteristics
• Cost-effective solution for negative voltage requirements
• Pb-free, RoHS compliant

Typical Applications

• Dual power supply systems (±12V)
• Op-amp and analog circuit negative voltage rails
• Audio amplifiers and pre-amplifiers
• Industrial control and instrumentation
• Test and measurement equipment
• Consumer electronics requiring negative supply
• Sensor and signal conditioning circuits

79L12G-AB3-R Alternatives & Cross Reference Popular Alternatives:

• 79L12 series (other packages: TO-92)
• LM79L12 / MC79L12 (ON Semi / TI equivalents)
• NJM79L12 (New Japan Radio)
• AMS79L12
• Higher current versions (79M12)

Comparison Table:

Purchasing Information at ICMASS

• Stock Status: Strong inventory available
• MOQ: 100 pieces (samples welcome)
• Lead Time: 1-3 days for stock orders
• Shipping: Fast global delivery (DHL, UPS, FedEx)
• Quality Guarantee: 100% genuine UTC components

Get Competitive Quote – Contact us for bulk pricing and technical support.

Frequently Asked Questions (FAQ)

Q1: What is the 79L12G-AB3-R mainly used for? A: It is a fixed -12V negative voltage regulator used to generate stable negative supply for analog circuits and op-amps.

Q2: What is the maximum output current? A: 100mA continuous.

Q3: What package does the 79L12G-AB3-R use? A: SOT-89 (AB3) surface mount package, supplied in Tape & Reel.

Q4: What is the typical dropout voltage? A: 1.7V at 40mA load.

Q5: Does it include protection features? A: Yes, internal thermal overload and short circuit protection.

Q6: Is it suitable for dual power supply applications? A: Yes, commonly used with 78L12 to create ±12V power rails.

Q7: What is the operating temperature range? A: -40°C to +125°C.

Q8: Do you have real stock of 79L12G-AB3-R? A: Yes, we maintain good inventory levels for fast delivery.

Q9: What is the typical quiescent current? A: Approximately 3.5mA.

Q10: Can you provide reference designs or layout recommendations? A: Yes, we supply official UTC datasheet and typical application circuits.

Q11: Do you offer volume pricing? A: Yes. Competitive tiered pricing is available for quantities from 1K to 100K+.

Q12: How does 79L12 compare to 79L09? A: Same current rating and package, but provides -12V output instead of -9V.

Related Products

• 79Lxx series (different negative voltages: 79L05, 79L09, 79L15 etc.)
• 78Lxx positive voltage regulators
• Other UTC Linear Voltage Regulators
• Higher current negative regulators (79Mxx series)