MCP1541T-I/TT Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
Microchip MCP1541T-I/TT is a precision 4.096V three-terminal voltage reference with 4.137V maximum output, RoHS-compliant in a 3-pin SOT-23 package. Available from distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1541T-I/TT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4218(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Precision 4.096V output voltage with tight 4.137V maximum specification enables direct 12-bit and 16-bit ADC reference scaling without external dividers
- Three-terminal shunt architecture in a 3-pin SOT-23-3 package minimizes PCB footprint for space-constrained portable instruments
- RoHS-compliant lead-free construction (e3 JESD-609) with 6-week standard lead time supports green manufacturing and supply chain planning
Applications
The MCP1541T-I/TT serves as an accurate voltage reference in battery-powered data loggers, portable medical instruments, and precision ADC front-ends where a stable 4.096V rail is needed for full-scale analog-to-digital conversion. Its compact SOT-23-3 footprint and single-function architecture make it easy to add precision referencing to any analog measurement circuit with minimal board area impact.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-3 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 4.137V |
| Output Voltage-Min | 4.055V |
| Output Voltage-Nom | 4.096V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 0.12mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temp Coef of Voltage-Max | 50ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.96mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 1% |
| Package | SOT23 (3-Pin) |
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 | Malaysia, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP1541T-I/TT:
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Frequently Asked Questions
Why is a 4.096V reference like MCP1541T-I/TT preferred for 12-bit ADC applications?
A 4.096V reference gives a full-scale LSB step of exactly 1 mV for a 12-bit ADC (4096 mV / 4096 steps), simplifying conversion math in firmware and eliminating scaling constants. The MCP1541T-I/TT's tight maximum output of 4.137V ensures the reference remains within range for standard 5V-supplied ADC inputs.
How does the 3-pin SOT-23 package of MCP1541T-I/TT benefit compact portable instrument PCB designs?
The SOT-23-3 package occupies less than 3 mm² of board space, allowing the MCP1541T-I/TT to be placed directly adjacent to an ADC input pin on densely populated portable instrument PCBs. Its small outline also reduces parasitic trace inductance in the reference path, improving noise performance compared to larger TO-92 or SIP packages.
In a data-logging system, what advantage does MCP1541T-I/TT offer over using the MCU's internal bandgap reference?
External precision references like the MCP1541T-I/TT typically offer tighter initial accuracy (often ±0.1% to ±0.5%) and lower temperature coefficient than internal MCU bandgap references, which can drift by several millivolts over -40°C to 85°C. This is critical when measuring small sensor voltages at 12-bit or 16-bit resolution.
What supply voltage headroom is needed above 4.096V for MCP1541T-I/TT to regulate correctly?
Three-terminal shunt references like the MCP1541T-I/TT require a supply voltage higher than their output by at least a few hundred millivolts, so a 4.5V to 5V supply is typically needed to maintain regulation at the 4.096V output. Designers should verify minimum input-to-output voltage headroom from the datasheet for their specific load current.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4400 | $0.44 |
| 4+ | $0.4248 | $1.70 |
| 48000+ | $0.4218 | $20246.40 |
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