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MCP1700T-2802E/MB
Microchip Technology
IC REG LINEAR 2.8V 250MA SOT89-3
2259 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 250mA SOT-89-3
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5.0 / 5.0
- (467 Ratings)
MCP1700T-2802E/MB
Product Overview
1362211
DiGi Electronics Part Number
MCP1700T-2802E/MB-DGManufacturer
Microchip Technology
MCP1700T-2802E/MB
Description
IC REG LINEAR 2.8V 250MA SOT89-3Inventory
2259 Pcs New Original In Stock
Linear Voltage Regulator IC Positive Fixed 1 Output 250mA SOT-89-3
Quantity
Minimum 1
Minimum 1
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MCP1700T-2802E/MB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Output Configuration
Positive
Output Type
Fixed
Number of Regulators
1
Voltage - Input (Max)
6V
Voltage - Output (Min/Fixed)
2.8V
Voltage - Output (Max)
-
Voltage Dropout (Max)
0.35V @ 250mA
Current - Output
250mA
Current - Quiescent (Iq)
4 µA
PSRR
44dB (100Hz)
Control Features
-
Protection Features
Over Current, Over Temperature, Short Circuit
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-243AA
Supplier Device Package
SOT-89-3
Base Product Number
MCP1700
Datasheet & Documents
Manuals
Development Tools Catalog
HTML Datasheet
MCP1700T-2802E/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
MCP1700T-2802E/MBCT
MCP1700T-2802E/MB-DG
MCP1700T-2802E/MBDKR
MCP1700T-2802E/MBTR
Standard Package
1,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
庫存充足，讓我們可以快速應對客戶的緊急需求，非常方便！
de desembre 02, 2025
価格表示がわかりやすく、追加費用もなく信頼できるショップです。
de desembre 02, 2025
The quick dispatch and robust packaging made the whole process smooth and reliable.
de desembre 02, 2025
DiGi Electronics’ attention to packaging detail is impressive and appreciated.
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Frequently Asked Questions (FAQ)
What are the key thermal design considerations when using the MCP1700T-2802E/MB in a high-ambient-temperature environment?
When using the MCP1700T-2802E/MB in environments approaching its maximum operating temperature of 125°C, thermal management becomes critical due to power dissipation from dropout voltage and load current. With a maximum dropout of 0.35V at 250mA, power dissipation can reach up to 87.5mW (0.35V × 250mA), but in worst-case scenarios with higher input voltages near 6V, dissipation increases significantly. Effective PCB copper layout with thermal vias and adequate copper pour on the SOT-89-3 package is essential to keep the junction temperature within safe limits. Always calculate TJ = TA + (PD × θJA) using actual board conditions—do not rely on datasheet typical values alone. Consider derating output current or using pulsed operation if sustained high power dissipation is unavoidable.
Can the MCP1700T-2802E/MB be used as a direct replacement for the MCP1702-280/LB or TPS7A05 in a space-constrained wearable design?
The MCP1700T-2802E/MB can serve as a functional replacement for the MCP1702-280/LB and TPS7A05 in low-power wearable applications requiring a stable 2.8V output, but important trade-offs exist. While all three devices offer similar dropout and quiescent current (4µA), the MCP1700T-2802E/MB uses a larger SOT-89-3 package compared to the DSBGA or DFN packages of the alternatives, increasing board footprint. Additionally, the TPS7A05 offers higher PSRR (60dB at 1kHz) and better noise performance, which may impact sensitive RF or sensor circuits. Verify that the reduced integration density and slightly lower PSRR (44dB at 100Hz) of the MCP1700T-2802E/MB won't affect system performance or thermal behavior in sealed enclosures.
How does the dropout voltage of the MCP1700T-2802E/MB impact battery life in portable IoT devices powered by single-cell Li-ion batteries?
The dropout voltage of the MCP1700T-2802E/MB—specified as 350mV at 250mA—directly affects usable battery life in single-cell Li-ion applications. As the battery discharges from 4.2V to 3.0V, the regulator remains in regulation only while VIN stays above 3.15V (2.8V + 0.35V). This means effective operation ceases earlier than with ultra-low-dropout alternatives (e.g., 150mV dropout devices), reducing usable battery capacity by up to 10–15% depending on load profile. For long-life, low-duty-cycle IoT sensors drawing <100µA average, the 4µA quiescent current of the MCP1700T-2802E/MB helps compensate, but for heavier or sustained loads, consider a lower-IQ, lower-dropout LDO like the TPS7A02 for extended runtime.
What risks should be considered when integrating the MCP1700T-2802E/MB into a noisy power rail feeding mixed-signal ADCs?
Integrating the MCP1700T-2802E/MB into a noisy system supplying mixed-signal ADCs introduces risk due to its moderate PSRR of 44dB at 100Hz, which degrades rapidly at higher frequencies. Noise from switch-mode power supplies or digital circuits can couple through the input rail and appear as ripple on the 2.8V output, potentially degrading ADC SNR. To mitigate this, always use a low-ESR ceramic capacitor (≥1µF) at the output, placed as close as possible to the MCP1700T-2802E/MB. Adding a small feedforward capacitor (10–100nF) across the input-output pins can improve AC performance, but verify stability per Microchip’s guidelines. For precision measurement systems, consider augmenting with additional LC filtering or selecting a higher-PSRR LDO like the MCP1824 for improved noise rejection.
How reliable is the MCP1700T-2802E/MB in automotive or industrial applications where rapid input voltage transients occur?
The MCP1700T-2802E/MB offers over-temperature, over-current, and short-circuit protection, making it robust for industrial environments, but its maximum input voltage is limited to 6V—this creates a significant risk during load-dump-like transients or power supply faults. In automotive 12V systems, even with regulation, transient spikes can exceed 6V, potentially damaging the device. Always include transient protection such as a TVS diode on the input rail when used in harsh environments. Additionally, the SOT-89-3 package has limited thermal mass, so repeated transient overloads may trigger thermal shutdown. For automotive use, consider adding input filtering and monitoring to ensure the MCP1700T-2802E/MB remains within its safe operating area despite real-world supply instability.
Quality Assurance (QC)
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MCP1700T-2802E/MB CAD Models
Microchip Technology MCP1700T-2802E/MB PCB symbols & footprints
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