MCP1601-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP1601-I/MS is a voltage-mode PWM switching regulator with 2.7 V to 5.5 V input range supporting PFM operation. Delivers regulated DC output in a compact MSOP-8 package with high efficiency for battery-powered applications. RoHS-compliant and available with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1601-I/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3400(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
- Voltage-mode PWM control with optional PFM mode for improved light-load efficiency
- Wide 2.7 V to 5.5 V input voltage range compatible with single-cell Li-Ion and multi-cell battery stacks
- Compact MSOP-8 package enabling small-footprint PCB designs for portable electronics
- RoHS-compliant lead-free construction for environmentally conscious product designs
Applications
The MCP1601-I/MS switching regulator is well suited for battery-operated handheld devices, IoT sensor nodes, and wearable electronics where efficient DC-DC conversion from 2.7 V to 5.5 V input is required. Its ability to switch between PWM and PFM modes allows it to maintain high conversion efficiency across varying load conditions from milliamps to full load. The compact MSOP-8 footprint makes it ideal for space-constrained designs such as portable medical instruments and wireless modules.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 20Weeks |
| YTEOL | 8 |
| Additional Feature | CAN ALSO FUNCTION IN PFM |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 4.2V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.9V |
| Output Voltage-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1000kHz |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range supported by the MCP1601-I/MS switching regulator?
The MCP1601-I/MS accepts an input voltage range of 2.7 V to 5.5 V, making it compatible with single-cell Li-Ion batteries, two-cell alkaline packs, and regulated 3.3 V or 5 V bus supplies in embedded and portable systems.
How does the MCP1601-I/MS PFM mode benefit battery-powered IoT devices?
In PFM mode, the MCP1601-I/MS reduces switching losses at light loads below a few milliamps, significantly extending battery life in IoT sensor nodes and wireless devices that spend most of their time in sleep or standby mode with low quiescent current draw.
Which package does the MCP1601-I/MS use and what are its footprint advantages?
The MCP1601-I/MS is housed in an 8-pin MSOP package, which occupies roughly 3 mm x 3 mm of PCB area. This compact size is advantageous for space-constrained wearable and portable designs running from a 2.7 V to 5.5 V supply.
When should a designer choose MCP1601-I/MS over a linear LDO regulator?
A designer should select the MCP1601-I/MS switching regulator over an LDO when efficiency at 2.7 V to 5.5 V input matters, particularly in battery-powered designs where converting several hundred milliamps would produce unacceptable heat in a linear regulator. The PWM and PFM switching topology achieves significantly higher conversion efficiency than any LDO under the same conditions.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
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
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+ | $0.3400 | $0.34 |
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.”