MCP1703AT-3302E/MC Microchip Integrated Circuit (Small Outline No-lead) In Stock
MCP1703AT-3302E/MC is a fixed 3.3V LDO regulator with up to 16V input, 525 mV typical dropout voltage, and ultra-low quiescent current for battery applications. Packaged in compact DFN-8, it suits space-constrained portable designs. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703AT-3302E/MC Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2054(MOQ 25)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.1V to 16V input range enables use directly from 12V unregulated adapters and single-cell Li-Ion to 4-cell alkaline battery stacks
- Ultra-low quiescent current extends battery runtime in sleep-mode IoT sensors and wireless nodes
- Low 525 mV typical dropout voltage maintains regulation on nearly discharged 3.7V Li-Ion cells down to about 3.8V input
- DFN-8 package occupies less than 4 mm² PCB area, saving board space in wearables and compact industrial sensors
Applications
MCP1703AT-3302E/MC is ideal for battery-powered IoT nodes, portable instruments, and wireless sensors that require a stable 3.3V rail from a wide-range input supply between 4V and 16V. Its ultra-low quiescent current and 525 mV dropout voltage maximize battery life in applications that spend most of their time in deep sleep, such as Zigbee or LoRa end nodes. The compact DFN-8 package is suited for space-constrained PCB layouts in wearables, medical devices, and industrial remote sensors.
Specifications
| Manufacturer Package Code | DFN-8 |
| Factory Lead Time | 1Week |
| YTEOL | 13 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.725V |
| Dropout Voltage1-Nom | 0.525V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 4.091V |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.1178991% |
| Load Regulation-Max | 0.0825% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.25A |
| Output Voltage1-Max | 3.399V |
| Output Voltage1-Min | 3.201V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 3% |
| 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 | Malaysia, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum input voltage required to maintain the 3.3V output of MCP1703AT-3302E/MC?
MCP1703AT-3302E/MC needs a minimum input of 3.3V plus its dropout voltage, which is typically 525 mV, giving a minimum operating input of about 3.825V. At maximum load conditions the worst-case dropout rises to 725 mV, so a fully charged single-cell Li-Ion at 4.2V provides comfortable headroom for the 3.3V regulated output.
How does the wide 16V input range of MCP1703AT-3302E/MC benefit 12V industrial sensor designs?
Industrial sensors are often powered from 12V supply rails that can surge to 15V or 16V during load transients. MCP1703AT-3302E/MC tolerates up to 16V continuous input and 18V absolute maximum, allowing direct connection without an upstream pre-regulator. This eliminates a voltage-divider or additional buck stage, reducing BOM cost in 12V-powered 3.3V sensor nodes by at least 2 components.
Why is low quiescent current important for MCP1703AT-3302E/MC in an IoT application, and what is its typical value?
In IoT end-nodes that sleep for 99% of their duty cycle, the LDO quiescent current dominates the average current consumption more than the active load current. MCP1703AT-3302E/MC specifies very low Iq in the microampere range, allowing a 2000 mAh AA-battery pack to sustain multi-year operation when the node wakes only for periodic 3.3V transmissions every few minutes.
How does MCP1703AT-3302E/MC in DFN-8 compare to a larger SOT-223 LDO for a compact 3.3V PCB design?
The DFN-8 package of MCP1703AT-3302E/MC occupies approximately 4 mm² versus SOT-223's 18 mm², saving over 14 mm² of PCB area. While SOT-223 offers better passive thermal spreading, MCP1703AT-3302E/MC's compact footprint suits designs with output currents below 250 mA where the power dissipation is low enough to rely on PCB copper pour rather than a large package pad.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
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