MC79M15BDTG ON Semiconductor Integrated Circuit (TO-XXX (Inc. DPAK)) In Stock
ON Semiconductor MC79M15BDTG is a fixed -15 V negative linear voltage regulator delivering up to 500 mA output current with a 1.1 V dropout voltage, rated from -40°C to +125°C. It accepts input voltages from 17.5 V to 30 V and is housed in a DPAK SMT package for compact board-level power regulation.
- Manufacturer
- ON Semiconductor
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- MC79M15BDTG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed -15 V output with 500 mA current capacity and 1.1 V typical dropout voltage for efficient negative-rail regulation
- Wide operating temperature range of -40°C to +125°C suits automotive and industrial environments
- Compact DPAK (TO-252) SMT package with exposed paddle enables efficient PCB-level thermal management without a heatsink
Applications
The MC79M15BDTG is used in analog signal conditioning circuits, op-amp dual-supply rails, and audio amplifier negative supply rails where a stable -15 V regulated output at up to 500 mA is required. Its -40°C to +125°C temperature range and DPAK package make it suitable for automotive infotainment systems, industrial sensor boards, and instrumentation equipment requiring a compact SMT negative voltage regulator.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | 369C |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 1.1V |
| Input Voltage Absolute-Max | 35V |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 17.5V |
| JESD-30 Code | R-PSSO-G2 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.08% |
| Load Regulation-Max | 0.24% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 15.75V |
| Output Voltage1-Min | 14.25V |
| Output Voltage1-Nom | 15V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.38,90TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | RAIL |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.29mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 4% |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MC79M15BDTG:
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suggested
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Frequently Asked Questions
What output voltage and current does the MC79M15BDTG regulate to, and what is the dropout voltage?
The MC79M15BDTG provides a fixed -15 V output at up to 500 mA load current with a typical dropout voltage of 1.1 V. This means the input supply must be at least -16.1 V (more negative than -15 V) to maintain regulation, with a maximum input voltage of -30 V for safe operation.
Which industrial or automotive applications can use the MC79M15BDTG across its full temperature range?
Operating from -40°C to +125°C, the MC79M15BDTG is qualified for automotive infotainment boards, underhood engine control modules, and industrial process control equipment where a stable -15 V negative supply rail at up to 500 mA is needed. The DPAK package dissipates sufficient heat for continuous full-load operation without an external heatsink in well-ventilated designs.
How does the MC79M15BDTG compare to a through-hole TO-220 negative regulator for space-constrained designs?
The MC79M15BDTG in DPAK (TO-252) requires roughly 40% less PCB area than a traditional TO-220 through-hole package while delivering the same 500 mA at -15 V, a 1.1 V dropout, and a -40°C to +125°C operating range. The SMT footprint eliminates lead-forming steps and integrates into standard reflow assembly without additional hardware.
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About ON Semiconductor
ON Semiconductor (onsemi) provides intelligent power and sensing technologies for automotive, industrial, IoT, and cloud infrastructure applications.
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