MCP1826S-3302E/EB Microchip Integrated Circuit (Other) In Stock
The MCP1826S-3302E/EB is a fixed 3.3 V, 1 A LDO linear regulator from Microchip with a typical dropout voltage of only 250 mV. It accepts input voltages from 3.78 V to 6 V and is housed in a DDPAK-3 package for enhanced thermal dissipation.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1826S-3302E/EB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4264(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1826S-3302E/EB?
- Fixed 3.3 V output with 1 A continuous current capability
- Ultra-low 250 mV typical dropout voltage reducing minimum headroom requirements
- Wide input voltage range of 3.78 V to 6 V supporting USB and single-cell Li-ion supplies
- DDPAK-3 package with exposed metal tab for superior thermal performance
- RoHS/Pb-free compliant for environmentally conscious designs
What is MCP1826S-3302E/EB used for?
The MCP1826S-3302E/EB is suited for powering 3.3 V microcontrollers, FPGAs, and peripheral logic from a 5 V USB bus or a single-cell Li-ion battery where low dropout ensures regulation down to near-depleted battery voltages. Its 1 A output current and DDPAK-3 thermal package make it a reliable post-regulator in embedded systems, motor-driver boards, and industrial sensor nodes that demand clean 3.3 V power with minimal heat dissipation complexity. The device also serves as a cost-effective linear post-regulator after a switching pre-regulator, where its low dropout characteristic reduces power loss and eases thermal design.
What are the specifications of MCP1826S-3302E/EB?
| Pbfree Code | Yes |
| Manufacturer Package Code | DDPAK-3 |
| Factory Lead Time | 8Weeks |
| 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 | 3.7825V |
| JESD-30 Code | R-PSSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0146355% |
| Load Regulation-Max | 0.033% |
| 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 | 3.3825V |
| Output Voltage1-Min | 3.2175V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.55TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| 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 | 2.54mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 2.5% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China |
Where can I find the MCP1826S-3302E/EB datasheet?
MCP1826S-3302E/EB Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1826S-3302E/EB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the MCP1826S-3302E/EB, and how does that affect minimum input voltage?
The MCP1826S-3302E/EB has a typical dropout voltage of 0.25 V and a maximum of 0.4 V at full 1 A load. This means the input supply must be at least 3.55 V (3.3 V + 0.25 V) under typical conditions to maintain a regulated 3.3 V output. In a single-cell Li-ion application, the battery can discharge to approximately 3.6 V while still providing regulated 3.3 V, extending usable runtime compared to regulators with higher dropout.
How much output current can the MCP1826S-3302E/EB supply, and what loads is it appropriate for?
The MCP1826S-3302E/EB is rated for 1 A continuous output current at 3.3 V. This is sufficient to power STM32 or PIC microcontrollers, Wi-Fi modules drawing up to 400 mA peak, Ethernet PHYs, SDRAM, and combinations of low-power peripherals. The DDPAK-3 package with its metal thermal tab helps dissipate the (VIN - 3.3 V) × 1 A heat at higher input voltages without requiring an external heat sink in many applications.
What input voltage range does the MCP1826S-3302E/EB accept, and which supply sources does that cover?
The MCP1826S-3302E/EB accepts input voltages from 3.7825 V minimum to 6 V maximum, with an absolute maximum of 6.5 V. This range covers a 5 V USB bus (4.75 V to 5.25 V), a single-cell Li-ion pack (3.0 V charged down — note minimum is 3.78 V so a protection circuit or pre-boost may be needed at very low SoC), and a regulated 5 V wall adapter, making it versatile for both portable and mains-powered embedded designs.
Why does the DDPAK-3 package matter for thermal management compared to a standard SOT-223 LDO?
The DDPAK-3 (D2PAK) package has a large exposed copper tab on its underside that solders directly to the PCB copper pour, providing a thermal resistance of roughly 10°C/W junction-to-board versus 50°C/W or more for a 3-lead SOT-223 without a heat spreader. At 1 A load from a 5 V input dissipating (5 V - 3.3 V) × 1 A = 1.7 W, the DDPAK-3's lower thermal resistance keeps junction temperature well within the 125°C maximum without needing a bolted external heat sink.
What is the typical lead time for MCP1826S-3302E/EB, and how should procurement teams plan their orders?
The MCP1826S-3302E/EB has a factory lead time of approximately 8 weeks from Microchip. For production builds, procurement engineers should maintain a safety stock of 8 to 12 weeks of supply or place scheduled blanket orders to avoid stockouts. During peak semiconductor demand cycles, spot-market pricing can spike significantly, so locking in contract pricing at distribution partners such as Digi-Key, Mouser, or Arrow is advisable for volumes above 500 units.
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