TC1108-3.3VDBTR Microchip Integrated Circuit (SOT223 (3-Pin)) In Stock
TC1108-3.3VDBTR is a fixed 3.3 V LDO voltage regulator from Microchip with 800 mA output current, a 0.24 V typical dropout voltage, 4.3 V to 6 V input range, and a compact SOT-223-3 surface-mount package for space-constrained power rails.
- Manufacturer
- Microchip
- Package
- SOT223 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- TC1108-3.3VDBTR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5130(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V output with tight regulation accuracy for logic and RF supply rails
- 800 mA continuous output current with only 0.24 V typical dropout voltage
- Input voltage range of 4.3 V to 6 V, compatible with 5 V USB and wall-adapter supplies
- SOT-223-3 SMT package with exposed paddle for improved thermal dissipation on the PCB
- Low quiescent current reduces standby power loss in always-on embedded systems
Applications
TC1108-3.3VDBTR is widely used as a 3.3 V point-of-load regulator in USB-powered devices, Bluetooth and Wi-Fi modules, and microcontroller development boards where a clean 3.3 V rail at up to 800 mA must be derived from a 5 V input. Its SOT-223 package and low dropout of 0.24 V also make it suitable for industrial sensor nodes, data acquisition cards, and portable test instruments that require compact and thermally manageable LDO regulation.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-223-3 |
| Factory Lead Time | 11Weeks |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.48V |
| Dropout Voltage1-Nom | 0.24V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.01155% |
| Load Regulation-Max | 0.066% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 3.3825V |
| Output Voltage1-Min | 3.2175V |
| Output Voltage1-Nom | 3.3V |
| 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 | 2.5% |
| ## TC1108-3.3VDBTR Alternates Showing results | Image |
| 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 | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TC1108-3.3VDBTR:
Frequently Asked Questions
What is the maximum output current and dropout voltage of TC1108-3.3VDBTR under full load?
TC1108-3.3VDBTR supplies up to 800 mA of continuous output current with a typical dropout of 0.24 V and a maximum of 0.48 V. This means the device regulates 3.3 V from inputs as low as 3.54 V under typical conditions, making it efficient for 5 V to 3.3 V conversion in USB-powered embedded systems.
Which USB and industrial supply rails are compatible with TC1108-3.3VDBTR without an additional pre-regulator?
TC1108-3.3VDBTR accepts inputs from 4.3 V to 6 V with a 6.5 V absolute maximum, so standard 5 V USB bus voltage, 5 V wall adapters, and 5 V industrial logic supplies all fall within its operating range and drive its 3.3 V output at up to 800 mA without needing a buck pre-stage.
How does the SOT-223-3 package help thermal management for TC1108-3.3VDBTR in high-load applications?
The SOT-223-3 package includes an exposed metal tab soldered to a thermal copper pad on the PCB, which provides a low thermal resistance path to conduct heat away from the die. At 800 mA with a 1.7 V input-to-output differential, the 1.36 W power dissipation can be managed on a 2-layer board with adequate copper pour beneath the tab.
What is the expected lead time for TC1108-3.3VDBTR when ordering for a production run?
Factory lead time for TC1108-3.3VDBTR is approximately 11 weeks from Microchip authorized distributors. Teams planning a production build of 2,000 units or more should submit purchase orders at least 12 weeks ahead of the first board assembly date to avoid supply shortfalls on this SOT-223-3 LDO.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6900 | $0.69 |
| 3+ | $0.5177 | $1.55 |
| 32000+ | $0.5174 | $16557.44 |
| 64000+ | $0.5130 | $32832.00 |
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