BA78M05CP-E2 ROHM Semiconductor Integrated Circuit (Transistor Outline, Vertical) In Stock
ROHM BA78M05CP-E2 is a fixed 5V LDO linear voltage regulator with 7.5V to 25V input range and 500mA output current. Features 0.1% line and load regulation accuracy with 2V dropout voltage in a TO-92-style vertical package. Available from stock worldwide.
- Manufacturer
- ROHM Semiconductor
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- BA78M05CP-E2 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 5V output with ±0.1% line and load regulation accuracy delivering stable supply voltage for precision analog and digital circuits
- 7.5V to 25V input voltage range with 35V absolute maximum rating, suitable for unregulated rectified mains supplies and 12V/24V DC systems
- TO-92-style vertical through-hole package enables easy prototyping, field repair, and point-of-load placement in existing PCB designs
Applications
The BA78M05CP-E2 LDO regulator provides a stable 5V supply for microcontrollers, sensors, and analog circuits in consumer electronics, industrial equipment, and hobby projects. Its 7.5V to 25V input range makes it compatible with transformer-rectifier power supplies and 12V DC adapters, covering a wide range of unregulated input sources. The vertical TO-92 package suits prototype boards, through-hole PCBs, and legacy designs requiring a simple 3-pin linear regulator without SMT assembly constraints.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 2V |
| Input Voltage Absolute-Max | 35V |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 7.5V |
| JESD-30 Code | R-XSFM-T3 |
| Line Regulation-Max | 0.1% |
| Load Regulation-Max | 0.1% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 0.35A |
| Output Voltage1-Max | 5.25V |
| Output Voltage1-Min | 4.75V |
| Output Voltage1-Nom | 5V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SIP3,.1TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | TR |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | SINGLE |
| Voltage Tolerance-Max | 5% |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output voltage and input voltage range does BA78M05CP-E2 support for linear regulation applications?
BA78M05CP-E2 provides a fixed 5V output and accepts 7.5V to 25V input voltage, with a 35V absolute maximum rating for transient protection. The 2V nominal dropout voltage means the input must be at least 7V to maintain regulated 5V output. This range covers 12V DC adapters, unregulated 9V to 18V supplies, and battery packs used in embedded and consumer electronic designs.
How precise is the output voltage regulation of BA78M05CP-E2 under varying load and line conditions?
BA78M05CP-E2 achieves 0.1% maximum line regulation and 0.1% maximum load regulation, delivering exceptional output voltage stability. At 500mA maximum output current, the 5V rail remains within tight tolerance across changing load currents, making it suitable for precision ADC reference supplies, sensor excitation circuits, and analog signal conditioning stages requiring stable 5V references.
What through-hole package does BA78M05CP-E2 use, and how does it compare to surface mount LDO alternatives for prototyping?
BA78M05CP-E2 uses an R-XSFM-T3 vertical through-hole package (TO-92-style) with 3 pins for IN, OUT, and GND. Through-hole mounting simplifies breadboard prototyping, point-of-load wiring, and field repair without SMT rework tools. For production PCBs where board area is critical, SMT LDO alternatives in SOT-223 packages provide similar 500mA ratings in smaller 6.5mm x 3.5mm footprints.
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