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MCP1701T-3302I/MB
Microchip Technology
IC REG LINEAR 3.3V 150MA SOT89-3
2374 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 150mA SOT-89-3
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5.0 / 5.0
- (468 Ratings)
MCP1701T-3302I/MB
Product Overview
1328505
DiGi Electronics Part Number
MCP1701T-3302I/MB-DGManufacturer
Microchip Technology
MCP1701T-3302I/MB
Description
IC REG LINEAR 3.3V 150MA SOT89-3Inventory
2374 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 150mA SOT-89-3
Quantity
Minimum 1
Minimum 1
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MCP1701T-3302I/MB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging
-
Series
-
Product Status
Obsolete
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage - Input (Max)
10V
Voltage - Output (Min/Fixed)
3.3V
Voltage - Output (Max)
-
Voltage Dropout (Max)
0.7V @ 160mA
Current - Output
150mA
Current - Quiescent (Iq)
3 µA
PSRR
-
Control Features
-
Protection Features
Short Circuit
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
TO-243AA
Supplier Device Package
SOT-89-3
Base Product Number
MCP1701
Datasheet & Documents
Manuals
Development Tools Catalog
HTML Datasheet
MCP1701T-3302I/MB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
MCP1701T-3302I/MB-DG
MCP1701T3302IMBTR-NDR
MCP1701T3302IMBTR
MCP1701T3302IMBCT
MCP1701T3302IMBCT-NDR
MCP1701T3302IMB
Standard Package
1,000
Alternative Parts
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DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Their after-sales responses are timely and thorough, very satisfactory.
грудня 02, 2025
The website’s search results were accurate and relevant.
грудня 02, 2025
Their quick shipping process allows me to stock up on essential parts without long waiting times.
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Frequently Asked Questions (FAQ)
Can the MCP1701T-3302I/MB be used in battery-powered designs where ultra-low quiescent current is critical, and how does it compare to modern alternatives like the XC6201P332PR-G in standby power performance?
Yes, the MCP1701T-3302I/MB is suitable for battery-powered applications due to its only 3 µA quiescent current, which helps extend battery life in low-duty-cycle or standby-heavy systems. However, since the device is marked as obsolete, long-term reliability and supply continuity are concerns. When compared to the pin-compatible XC6201P332PR-G, both offer similar Iq levels (~3 µA), but the XC6201 has slightly better load transient response and a newer production status, reducing risk of future obsolescence. For new designs, we recommend migrating to active-part alternatives while ensuring the dropout voltage (0.7V max at 160mA) fits your battery discharge curve—especially in single-cell Li-ion or 3x AA configurations where input voltage may fall below 4V under load.
What are the thermal risks when operating the MCP1701T-3302I/MB at full 150mA load in a high-temperature industrial environment near 85°C?
Operating the MCP1701T-3302I/MB at 150mA near its max junction temperature of 85°C poses significant thermal risks due to power dissipation from dropout voltage. With a max dropout of 0.7V, the device dissipates up to P = I × V_dropout = 150mA × 0.7V = 105mW. In the SOT-89-3 package (typical θJA ~140°C/W), this results in a temperature rise of ~14.7°C. Combined with ambient 85°C, the junction could approach 100°C—exceeding safe margins without adequate PCB copper heatsinking. To mitigate risk, use at least 1 in² of 1oz copper pour connected to the input/output pins, reduce load current if possible, or consider a switching pre-regulator for larger Vin-Vout differentials.
Is the MCP1701T-3302I/MB a drop-in replacement for the MCP1701AT-3302I/MB, and are there any differences in reliability or electrical performance that could affect long-term field operation?
The MCP1701T-3302I/MB and MCP1701AT-3302I/MB are functionally identical in pinout, output voltage (3.3V), current rating (150mA), and dropout specs, making them electrically interchangeable. The difference lies in test and grading: the 'AT' variant typically undergoes tighter production testing and may have improved long-term reliability screening. Since both are now obsolete, using either introduces supply chain risk. For critical designs, characterize both under temperature cycling and load transients—especially in automotive or industrial systems. Prefer sourcing from authorized distributors to avoid counterfeit parts, as the SOT-89-3 package is prone to remarking.
What design considerations should I follow when replacing the obsolete MCP1701T-3302I/MB with a modern LDO like the XC6201P332PR-G in an existing layout?
When replacing the MCP1701T-3302I/MB with the XC6201P332PR-G, confirm pin-to-pin compatibility: both are fixed 3.3V, positive LDOs in SOT-89-3 packages with the same pinout (VIN, GND, VOUT). However, verify the XC6201's enable logic—some variants are active-low and may require pull-up resistors if uncommitted. Also, the XC6201 typically requires a 1µF ceramic capacitor for stability, whereas the MCP1701T is stable with 1µF or larger—ensure your PCB footprint supports low-ESR ceramics. Perform load transient testing at startup and under dynamic loads, as control loop differences may affect ripple performance. Finally, audit long-term availability of the XC6201 with your supplier to avoid future obsolescence cycles.
What protection features does the MCP1701T-3302I/MB include, and how should I design external circuitry to handle conditions like reverse polarity or voltage transients on the input line?
The MCP1701T-3302I/MB includes internal short-circuit protection and thermal shutdown, but it lacks reverse polarity protection, undervoltage lockout, and transient voltage suppression. If your application operates in harsh environments (e.g., automotive or outdoor IoT), a reverse-connected input could permanently damage the device. To mitigate this risk, add a series Schottky diode or use a P-MOSFET-based reverse polarity guard. Additionally, place a transient voltage suppressor (TVS) diode—such as a 6.8V SMAJ-type—on the input to clamp transients above 10V. Include a 1µF low-ESR ceramic capacitor at the input to reduce noise and improve PSRR, even though the device isn't specified for PSRR, to enhance stability under fluctuating loads.
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MCP1701T-3302I/MB CAD Models
Microchip Technology MCP1701T-3302I/MB PCB symbols & footprints
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