MCP1700T-1802E/MB Microchip Integrated Circuit (Other) In Stock
Microchip MCP1700T-1802E/MB is a low-dropout linear regulator delivering a fixed 1.8 V output at up to 250 mA with an ultra-low 1.6 µA quiescent current. It accepts inputs up to 6 V with a typical dropout of just 0.15 V at full load for efficient battery-powered operation. Packaged in a 3-pin SOT-89 for straightforward integration in compact power supply designs.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1700T-1802E/MB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3400(MOQ 25)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 250 mA output current with ultra-low 1.6 µA quiescent current extending battery life in IoT and wearable applications
- 0.15 V typical dropout voltage enabling near-rail-to-rail efficiency from single-cell Li-ion or 2-cell alkaline battery supplies
- Fixed 1.8 V output with up to 6 V input in a 3-pin SOT-89 package for compact, low-component-count power regulation
Applications
The MCP1700T-1802E/MB is ideal for powering low-voltage microcontrollers, wireless SoCs, and sensors in battery-operated IoT nodes, wearables, and portable medical devices where the 1.6 µA quiescent current minimizes standby drain. Its 0.15 V dropout and 6 V maximum input allow direct regulation from single-cell Li-ion batteries down to near end-of-discharge conditions.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-89-3 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.35V |
| Dropout Voltage1-Nom | 0.15V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.3V |
| JESD-30 Code | R-PSSO-F3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0324% |
| Load Regulation-Max | 0.027% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 1.854V |
| Output Voltage1-Min | 1.746V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-243 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100; TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | FLAT |
| Terminal Pitch | 1.5mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Voltage Tolerance-Max | 3% |
| Package | Other |
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, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 1.6 µA quiescent current of the MCP1700T-1802E/MB extend battery life in sleep-mode IoT devices?
At 1.6 µA quiescent current, the MCP1700T-1802E/MB draws less than 0.002 mWh per hour from a 1.8 V supply during standby, meaning a 1000 mAh coin-cell battery loses less than 1% of its capacity per year to regulator overhead, enabling multi-year unattended sensor node operation without battery replacement.
For a Li-ion powered design, how does the 0.15 V typical dropout of the MCP1700T-1802E/MB affect usable battery capacity?
With a 0.15 V typical dropout, the MCP1700T-1802E/MB maintains its 1.8 V output until the Li-ion cell drops to approximately 1.95 V, recovering roughly 15% more usable capacity compared to a regulator with a 0.5 V dropout that would drop out at 2.3 V, directly extending device runtime between charges.
In which precision sensor or RF front-end circuits does a stable fixed 1.8 V output from the MCP1700T-1802E/MB reduce noise interference?
LDO regulators like the MCP1700T-1802E/MB provide high power-supply rejection that suppresses battery ripple by more than 60 dB across the 10 Hz to 100 kHz range, which is critical for ADC reference rails, MEMS microphone supplies, and BLE or Zigbee radio VDD pins where supply noise directly degrades sensitivity and SNR.
How does the SOT-89 package of the MCP1700T-1802E/MB handle thermal dissipation at 250 mA output current?
The SOT-89 package has a thermal resistance of approximately 100°C/W junction-to-ambient, so at 250 mA with a 0.5 V input-output differential the regulator dissipates 125 mW, resulting in a junction temperature rise of about 12.5°C, which stays well within the 125°C maximum rating in most ambient conditions without a heatsink.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
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| 100+ | $0.3900 | $39.00 |
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