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MIC2003-0.8YM5
Microchip Technology
IC PWR SWITCH P-CHAN 1:1 SOT23-5
2264 Pcs New Original In Stock
Power Switch/Driver 1:1 P-Channel 800mA SOT-23-5
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (127 Ratings)
MIC2003-0.8YM5
Product Overview
1369370
DiGi Electronics Part Number
MIC2003-0.8YM5-DGManufacturer
Microchip Technology
MIC2003-0.8YM5
Description
IC PWR SWITCH P-CHAN 1:1 SOT23-5Inventory
2264 Pcs New Original In Stock
Power Switch/Driver 1:1 P-Channel 800mA SOT-23-5
Quantity
Minimum 1
Minimum 1
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MIC2003-0.8YM5 Technical Specifications
Category
Power Management (PMIC), Power Distribution Switches, Load Drivers
Packaging
-
Series
-
Product Status
Obsolete
Switch Type
General Purpose
Number of Outputs
1
Ratio - Input:Output
1:1
Output Configuration
High Side
Output Type
P-Channel
Interface
On/Off
Voltage - Load
2.5V ~ 5.5V
Voltage - Supply (Vcc/Vdd)
Not Required
Current - Output (Max)
800mA
Rds On (Typ)
70mOhm
Input Type
Non-Inverting
Features
-
Fault Protection
Current Limiting (Fixed), Over Temperature
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
SOT-23-5
Package / Case
SC-74A, SOT-753
Base Product Number
MIC2003
Datasheet & Documents
HTML Datasheet
MIC2003-0.8YM5-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
Standard Package
1,050
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
丁寧な梱包と正確な物流追跡のおかげで、信頼して注文できます。
de desembre 02, 2025
Received my items rapidly, and the cost was very economical. Can't ask for more.
de desembre 02, 2025
They provide rapid responses that resolve my issues efficiently.
de desembre 02, 2025
Delivery is consistently fast, and their post-sale support is top-notch.
de desembre 02, 2025
Customer service is responsive and genuinely cares about my experience.
de desembre 02, 2025
The shipping process with DiGi Electronics is consistently reliable, with items arriving on time every single time.
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Frequently Asked Questions (FAQ)
Can the MIC2003-0.8YM5 be used in battery-powered designs where load current spikes to 750mA, and what thermal risks should I consider during sustained operation?
Yes, the MIC2003-0.8YM5 supports up to 800mA output current, making it suitable for 750mA load spikes. However, in battery-powered applications with prolonged high-current operation, verify thermal performance using TPD = (Tj_max - Ta) / θJA, where θJA for SOT-23-5 is typically ~200°C/W. At 750mA and Rds(on) of 70mΩ, power dissipation is ~39mW, but under current limiting or fault conditions, internal dissipation increases significantly. Ensure PCB layout includes sufficient copper for heat spreading and monitor junction temperature, especially in enclosed or high-ambient environments to avoid overtemperature shutdown or long-term reliability degradation.
Is the MIC2003-0.8YM5 a viable drop-in replacement for the TPS22920DBVR in a 3.3V portable sensor module, and how do their current-limiting behaviors differ?
The MIC2003-0.8YM5 can functionally replace the TPS22920DBVR in a 3.3V system with load currents below 800mA, but key differences affect reliability. Unlike the TPS22920’s adjustable current limit and fast current foldback, the MIC2003-0.8YM5 has a fixed current limit with thermal shutdown—leading to slower response during shorts. This increases stress on upstream components during fault events. Add external current monitoring or a fuse if fast fault isolation is required. Also, verify control logic compatibility: MIC2003-0.8YM5 uses non-inverting enable, same as TPS22920, simplifying integration.
How does the lack of Vcc requirement in the MIC2003-0.8YM5 affect its enable timing and control signal compatibility in mixed-voltage systems?
The MIC2003-0.8YM5 uses the load voltage (2.5V–5.5V) as its supply rail, eliminating the need for a separate Vcc. This simplifies power sequencing in mixed-voltage designs but requires that the enable signal (ON/OFF pin) be compatible with the load voltage level. If controlling with a 1.8V MCU GPIO, the signal may not sufficiently turn on the switch until the load rail is active—causing boot issues. Use a level translator or ensure the enable source rises after the load rail, or consider a different switch with dedicated Vcc for precise low-voltage logic control.
What are the reliability risks when using the obsolete MIC2003-0.8YM5 in a new design intended for long-term production?
Using the MIC2003-0.8YM5 in new designs poses significant supply chain risks due to its 'Obsolete' status—Microchip Technology may discontinue shipments at any time. Although 2200 units are available now, long-term production runs risk interruption. Consider second-sourcing with active parts like the Diodes Zetex ZXMS6004GTA (600mA, 1:1 P-channel) or the Infineon BTS4140N (smart high-side with protection), though pin and control differences require layout changes. For drop-in alternatives, evaluate availability of MIC2005 series or allocate time for redesign during product lifecycle planning.
How does the fixed current-limit protection in the MIC2003-0.8YM5 impact system safety during output short-circuits, and what PCB design practices mitigate stress on the switch?
The MIC2003-0.8YM5 enters thermal shutdown during sustained overcurrent, but due to fixed current limiting, it continues to conduct until temperature triggers protection—resulting in high internal power dissipation. This can lead to cumulative thermal stress and premature failure if short-circuit events are frequent. To mitigate, limit fault exposure with time-limited system firmware responses, use the enable pin to reset the device after shutdown, and implement sufficient PCB copper around the SOT-23-5 for thermal dissipation. Avoid placing heat-sensitive components nearby, and consider adding an inline polyfuse for physical overcurrent protection in field-deployed systems.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
MIC2003-0.8YM5 CAD Models
Microchip Technology MIC2003-0.8YM5 PCB symbols & footprints
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