MCP1663T-E/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
Microchip MCP1663T-E/OT is a current-mode PWM boost DC/DC converter with 500 kHz switching frequency and 2.4 V to 5.5 V input voltage range in a SOT-23-5 package. It delivers regulated higher output voltages from low-voltage supplies for portable applications. Available in stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1663T-E/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1000(MOQ 2)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 500 kHz PWM switching frequency enables the use of tiny external inductors and capacitors for compact designs
- Wide 2.4 V to 5.5 V input range supports single-cell Li-ion, dual AA, and USB 5 V supply rails
- Current-mode control provides fast transient response and cycle-by-cycle overcurrent protection in a 5-pin SOT-23 package
Applications
The MCP1663T-E/OT is commonly used in handheld instruments, wearable devices, and portable LED drivers where a single Li-ion cell must be boosted to a higher regulated voltage. Its 500 kHz switching frequency allows minimal external component sizes for space-constrained PCB layouts. The device also suits white LED backlighting in small display modules powered from 2.4 V to 5.5 V battery supplies.
Specifications
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.4V |
| Input Voltage-Nom | 3.3V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.375A |
| Output Voltage-Max | 32V |
| Output Voltage-Nom | 12V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.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 |
| 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 (5-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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does MCP1663T-E/OT support and which battery chemistries are compatible?
The MCP1663T-E/OT operates from 2.4 V to 5.5 V input, making it compatible with single-cell Li-ion batteries (3.0 V to 4.2 V), dual AA alkaline batteries (2.4 V to 3.2 V), and USB 5 V rails. This broad range suits most portable device power architectures without additional pre-regulation.
How does the 500 kHz switching frequency of MCP1663T-E/OT benefit PCB component sizing?
At 500 kHz, the MCP1663T-E/OT requires an external inductor as small as 4.7 µH and output capacitor below 10 µF, significantly reducing board footprint compared to 100 kHz converters needing 47 µH inductors. This makes it ideal for space-constrained portable designs in the SOT-23-5 package.
What protection features does MCP1663T-E/OT provide for safe operation in battery-powered equipment?
The MCP1663T-E/OT uses current-mode control that provides cycle-by-cycle overcurrent limiting, protecting the external MOSFET switch and inductor from fault conditions. The device operates safely across a junction temperature range of -40°C to +125°C, making it suitable for both consumer and extended temperature industrial portable applications.
For a compact wearable LED driver design, how does MCP1663T-E/OT compare to alternative boost converters in the SOT-23 package?
Compared to lower-frequency competitors, MCP1663T-E/OT's 500 kHz switching frequency enables a total solution size under 15 mm² with a 4.7 µH inductor and two ceramic capacitors. Its 2.4 V minimum input is 0.4 V lower than many 2.8 V minimum alternatives, providing extended runtime from depleted Li-ion cells in wearable LED backlighting applications.
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