MIC2251YML-TR Microchip Integrated Circuit (Small Outline No-lead) In Stock
MIC2251YML-TR is a high-efficiency, low-EMI current-mode boost regulator from Microchip operating from 2.5 V to 5.5 V input with pulse frequency modulation control in a compact VDFN-8 package. It delivers regulated output at up to 3.6 V nominal with 29 configurable parameters suited for portable and battery-powered designs. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MIC2251YML-TR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2580(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode pulse frequency modulation (PFM) control minimizes switching losses and EMI across the 2.5 V to 5.5 V input range
- Ultra-compact VDFN-8 (Small Outline No-lead) package enables space-saving PCB layouts for portable electronics
- Wide input voltage range of 2.5 V to 5.5 V supports single-cell Li-Ion and dual-cell alkaline battery applications
Applications
MIC2251YML-TR suits battery-powered portable devices such as wearables, IoT sensor nodes, and handheld instruments that require a boost converter to generate a stable regulated output from a single-cell lithium-ion or alkaline battery. Its low-EMI pulse frequency modulation switching architecture makes it appropriate for noise-sensitive applications including wireless communication modules and audio peripherals. The VDFN-8 package keeps PCB area to a minimum, benefiting compact consumer electronics and medical monitoring devices.
Specifications
| Manufacturer Package Code | VDFN-8 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 8Weeks |
| YTEOL | 13 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE FREQUENCY MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 3.5A |
| Output Voltage-Max | 37V |
| Output Voltage-Nom | 15V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.08,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline No-lead |
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, Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of MIC2251YML-TR and what battery chemistries does it support?
MIC2251YML-TR operates from 2.5 V to 5.5 V input, covering single-cell Li-Ion batteries (nominally 3.6 V) and dual-cell alkaline batteries. This 3 V span makes it compatible with any primary or rechargeable cell that stays within these 2 input limits during its discharge cycle.
How does the current-mode PFM control in MIC2251YML-TR reduce EMI compared with fixed-frequency PWM regulators?
Pulse frequency modulation (PFM) varies switching frequency rather than duty cycle, so energy packets are delivered on demand. This spreads switching harmonics across a broad spectrum instead of concentrating them at a fixed frequency, resulting in lower peak EMI emissions. The MIC2251YML-TR achieves high efficiency especially at light loads below 50 mA where PFM skips cycles entirely.
Which compact PCB designs benefit from the VDFN-8 package of MIC2251YML-TR?
The VDFN-8 Small Outline No-lead package measures approximately 2 mm x 2 mm, making MIC2251YML-TR ideal for wearables, IoT nodes, and medical patches where board area is under 100 mm2. Its exposed pad also improves thermal dissipation, supporting continuous output currents without a large heatsink.
When should a designer choose MIC2251YML-TR over a fixed-frequency PWM boost converter for a 3.3 V rail design?
MIC2251YML-TR is preferred when load current is typically below 200 mA and battery life is critical, because PFM control delivers efficiency above 85% at light loads where PWM efficiency drops sharply. Fixed-frequency PWM converters are better when strict EMI band-plan constraints require a known single switching frequency, for example in GPS receivers with 1575 MHz sensitivity requirements.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2580 | $0.26 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”