MCP1804T-A002I/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
MCP1804T-A002I/DB is a fixed-output LDO linear regulator from Microchip with a wide 12 V to 28 V input range, 0.7 V typical dropout voltage, and a SOT-223 power package, designed for industrial and automotive 24 V bus post-regulation applications.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1804T-A002I/DB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4321(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1804T-A002I/DB?
- Wide input voltage range 12 V to 28 V covering 24 V industrial and automotive bus rails
- Fixed output voltage with 0.7 V typical and 0.95 V maximum dropout at full load
- SOT-223-3 power package with a large exposed pad for enhanced PCB heat sinking
- Absolute maximum input voltage of 30 V for transient tolerance in rugged environments
- Low quiescent current for efficiency in always-on industrial sensor nodes
- Lead-free RoHS-compliant with Pbfree code Yes for regulatory compliance
- Industrial temperature range -40°C to +125°C suitable for harsh environments
What is MCP1804T-A002I/DB used for?
MCP1804T-A002I/DB is ideal for post-regulation on 24 V industrial bus-powered equipment such as PLC modules, sensor transmitters, and industrial I/O boards where a precise low-voltage logic supply must be derived directly from the field bus rail. Its wide input range of 12 V to 28 V also covers automotive 12 V systems and 24 V truck/bus electrical architectures, making it a versatile choice for vehicle electronics requiring a stable regulated output from a nominally 24 V supply.
What are the specifications of MCP1804T-A002I/DB?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-3 |
| Factory Lead Time | 16Weeks |
| YTEOL | 9 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.95V |
| Dropout Voltage1-Nom | 0.7V |
| Input Voltage Absolute-Max | 30V |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 12V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.48% |
| Load Regulation-Max | 0.175% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 10.2V |
| Output Voltage1-Min | 9.8V |
| Output Voltage1-Nom | 10V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.3mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2% |
| Package | SOT223 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Japan |
Where can I find the MCP1804T-A002I/DB datasheet?
MCP1804T-A002I/DB Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1804T-A002I/DB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does MCP1804T-A002I/DB support, and is it compatible with 24 V industrial power rails?
MCP1804T-A002I/DB operates from 12 V to 28 V input, with an absolute maximum of 30 V, directly accommodating the 24 V nominal industrial bus including transient spikes; this eliminates the need for an upstream switching pre-regulator in most 24 V PLC and sensor transmitter designs, simplifying the power architecture and reducing BOM complexity.
How does the 0.7 V typical dropout voltage of MCP1804T-A002I/DB affect its usable input voltage range in low-headroom conditions?
With a 0.7 V typical and 0.95 V maximum dropout voltage, MCP1804T-A002I/DB requires the input to stay at least 0.95 V above the output even at the worst-case junction temperature of 125°C; for a 3.3 V output, the input must remain above 4.25 V — well within the 12 V minimum rated input, providing generous headroom for regulation.
What thermal considerations apply when MCP1804T-A002I/DB dissipates power in a high-voltage application?
In a 24 V input, 3.3 V output design at 150 mA, the device dissipates approximately 3.1 W, which may cause thermal shutdown without adequate heat sinking; the SOT-223-3 package includes an exposed thermal pad that must be soldered to a ground copper pour of at least 1 cm² to keep junction temperature below 125°C in still air conditions at 25°C ambient.
Is MCP1804T-A002I/DB compliant with RoHS and REACH for use in CE-marked industrial equipment sold in Europe?
Yes, MCP1804T-A002I/DB carries Pbfree code Yes confirming lead-free solder terminations and RoHS-compliant construction. Designers can include this device in CE-marked industrial instruments, sensor transmitters, and automation equipment shipped to EU markets without requiring a RoHS exemption for the regulator itself.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0400 | $1.04 |
| 10+ | $0.9530 | $9.53 |
| 25+ | $0.4468 | $11.17 |
| 100+ | $0.4395 | $43.95 |
| 250+ | $0.4321 | $108.02 |
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