MCP16251T-I/CH Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
The MCP16251T-I/CH is a low-quiescent-current PFM/PWM synchronous boost regulator from Microchip with a minimum input voltage of 0.82 V and true output disconnect, making it ideal for single-cell battery-powered applications. It integrates bypass and disconnect features in a compact 6-pin SOT-23 package.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- MCP16251T-I/CH Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3980(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
- Ultra-low quiescent current in PFM mode extends battery runtime in duty-cycled and always-on IoT nodes
- Wide input voltage range starting from 0.82 V enables operation from a single alkaline or NiMH cell
- True output disconnect prevents battery drain through reverse current when the boost output is disabled
- Dual PFM/PWM operation automatically transitions to PWM at heavier loads for optimized efficiency
- Compact 6-pin SOT-23 package minimizes solution footprint for wearable and portable battery-powered designs
Applications
The MCP16251T-I/CH is primarily used in battery-powered IoT sensors, wearable devices, and portable medical instruments where single-cell operation from as low as 0.82 V input is required. Its true output disconnect function and ultra-low quiescent current also make it well-suited for energy harvesting and coin-cell powered wireless sensor nodes that must extend battery life to multiple years.
Specifications
| Manufacturer Package Code | SOT-23-6 |
| Factory Lead Time | 6Weeks |
| YTEOL | 7 |
| Analog IC - Other Type | BATTERY CHARGE CONTROLLER |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Min | 0.82V |
| Input Voltage-Nom | 1.5V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.1A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 1.8V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 575kHz |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | SOT23 (6-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 | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP16251T-I/CH:
Frequently Asked Questions
How low can the MCP16251T-I/CH input voltage go, and which battery chemistries does that support?
MCP16251T-I/CH operates from an input voltage as low as 0.82 V, allowing it to boost from a single alkaline, NiMH, or primary lithium cell throughout nearly its entire discharge curve, maximizing usable energy in portable and IoT sensor designs that must run from a single 1.5 V cell.
What does the true output disconnect feature provide compared to a standard synchronous boost regulator?
True output disconnect electronically isolates the output from the input when the regulator is disabled, preventing reverse current from the load back into the battery. This is critical for battery-powered systems where even a few microamps of leakage current over weeks would drain a small coin cell below useful voltage.
Is the 6-pin SOT-23 package of MCP16251T-I/CH suitable for wearable PCB layouts with tight space constraints?
Yes. The SOT-23-6 package measures approximately 2.9 mm x 1.6 mm, making it one of the smallest available footprints for a synchronous boost converter. Designers can build a complete step-up power supply occupying less than 25 mm² of board area including external inductor and capacitors.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3980 | $0.40 |
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