MCP1826S-2502E/DB Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
The MCP1826S-2502E/DB is a 1000 mA LDO linear voltage regulator with a fixed 2.5 V output at ±2% accuracy, accepting 2.3 V to 6 V input with a typical 0.25 V dropout. It is housed in a 3-pin SOT-223 package for medium-current embedded power supply designs.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1826S-2502E/DB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7100(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1000 mA output current with fixed 2.5 V output at ±2% accuracy
- Low 0.25 V typical dropout voltage at full 1 A load current
- Wide 2.3 V to 6 V input range supporting USB, battery, and regulated rail inputs
- 3-pin SOT-223 package with exposed thermal tab for improved heat dissipation
- Fixed output eliminates external feedback resistors simplifying board layout
- Input absolute maximum 6.5 V provides headroom against transients
Applications
The MCP1826S-2502E/DB is used to generate a stable 2.5 V reference or logic supply rail from USB, single-cell lithium, or regulated 5 V sources in embedded systems, DSP boards, and FPGA power domains. Its 1 A output current and low dropout make it suitable for powering processor analog reference voltages, memory modules, and RF transceivers in industrial and communications equipment.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-3 |
| YTEOL | 9 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.4V |
| Dropout Voltage1-Nom | 0.25V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.9625V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0151875% |
| Load Regulation-Max | 0.025% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 2.5625V |
| Output Voltage1-Min | 2.4375V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.3mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2.5% |
| 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 | Taiwan, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum input voltage needed for MCP1826S-2502E/DB to regulate 2.5 V at full 1 A load?
At full 1 A output current, the typical dropout voltage is 0.25 V and the maximum is 0.4 V, so the input must be at least 2.9 V to guarantee 2.5 V regulated output across production variation and temperature.
How does the SOT-223 thermal tab on MCP1826S-2502E/DB help manage heat in a 1 A continuous current application?
The SOT-223 package's exposed metal tab solders directly to a PCB copper pour, reducing the junction-to-board thermal resistance compared to a standard SOT-23 and allowing the device to dissipate the heat generated at higher loads without an external heatsink.
In a 5 V USB-powered design, how much power does MCP1826S-2502E/DB dissipate when delivering 1 A at 2.5 V output?
With a 5 V input and 2.5 V output at 1 A, the power dissipated in the LDO is (5 V - 2.5 V) x 1 A = 2.5 W, which requires careful PCB copper area planning and thermal management to stay within the device's safe operating limits.
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