79L05G-AB3-R – UTC -5V 100mA Negative Voltage Regulator (SOT-89)

Quick Answer The 79L05G-AB3-R is a fixed -5V negative voltage regulator from Unisonic Technologies (UTC). It provides stable -5V output with up to 100mA current in a compact SOT-89 package. It is widely used in dual power supply circuits, operational amplifiers, analog signal processing, and other applications requiring a reliable negative voltage rail.

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

Key Specifications

Why Choose 79L05G-AB3-R?

• Stable -5V negative output with good regulation
• Compact SOT-89 surface mount package
• Low quiescent current for power-sensitive designs
• Wide input voltage range
• Cost-effective and reliable UTC solution
• Essential for dual (±) power supply applications

Typical Applications

• Dual power supply circuits (±5V, ±12V, etc.)
• Operational amplifier (Op-Amp) negative rail
• Analog signal processing circuits
• Audio preamplifiers and filters
• Sensor and measurement equipment
• Industrial control systems
• Data acquisition systems
• General purpose negative voltage regulation

79L05G-AB3-R Alternatives & Cross Reference

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 via DHL, UPS, FedEx
• Quality Guarantee: 100% genuine UTC components with full traceability

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

Frequently Asked Questions (FAQ)

Q1: What is the output voltage of 79L05G-AB3-R? A: Fixed -5.0V negative output.

Q2: What is the maximum output current? A: 100mA, suitable for low-power negative voltage applications.

Q3: What package does 79L05G-AB3-R use? A: SOT-89 surface mount package for good thermal performance.

Q4: What input voltage range is required? A: Typically -7V to -35V (more negative than output).

Q5: Is it suitable for dual power supply circuits? A: Yes, commonly paired with 78L05 or 78xx positive regulators for ±5V supplies.

Q6: Is 79L05G-AB3-R in stock at ICMASS? A: Yes, we maintain strong inventory for fast global shipping.

Q7: What output capacitor is recommended? A: 0.1µF or larger on output for stability.

Q8: Can it be used with Op-Amps? A: Yes, widely used to provide negative supply rail for operational amplifiers.

Q9: How does it compare to adjustable negative regulators? A: Fixed -5V version is simpler and more cost-effective for standard applications.

Q10: Do you offer volume pricing? A: Yes, competitive tiered pricing for quantities from 1K to 100K+.

Q11: What is the dropout voltage? A: Typically 1.7V.

Q12: Can you provide reference circuits or PCB layout advice? A: Yes, we supply the datasheet, typical application circuits, and thermal design recommendations.

Related Products

• 78L05G-AB3-R / 78L12G-AB3-R (Positive regulators)
• LM79L05 (TI version)
• LM337 (Adjustable negative regulator)
• Other UTC Voltage Regulators