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MIC2544-2YM
Microchip Technology
IC PWR SWITCH N-CHAN 1:1 8SOIC
3295 Pcs New Original In Stock
Power Switch/Driver 1:1 N-Channel 1.5A 8-SOIC
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (226 Ratings)
MIC2544-2YM
Product Overview
1375743
DiGi Electronics Part Number
MIC2544-2YM-DGManufacturer
Microchip Technology
MIC2544-2YM
Description
IC PWR SWITCH N-CHAN 1:1 8SOICInventory
3295 Pcs New Original In Stock
Power Switch/Driver 1:1 N-Channel 1.5A 8-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
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365 - Day Quality Guarantee - Every part fully backed.
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MIC2544-2YM Technical Specifications
Category
Power Management (PMIC), Power Distribution Switches, Load Drivers
Packaging
Tube
Series
-
Product Status
Active
Switch Type
USB Switch
Number of Outputs
1
Ratio - Input:Output
1:1
Output Configuration
High Side
Output Type
N-Channel
Interface
On/Off
Voltage - Load
2.7V ~ 5.5V
Voltage - Supply (Vcc/Vdd)
Not Required
Current - Output (Max)
1.5A
Rds On (Typ)
80mOhm
Input Type
Non-Inverting
Features
Status Flag
Fault Protection
Current Limiting (Adjustable), Over Temperature
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
8-SOIC
Package / Case
8-SOIC (0.154", 3.90mm Width)
Base Product Number
MIC2544
Datasheet & Documents
HTML Datasheet
MIC2544-2YM-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
576-2168
MIC2544-2YM-DG
MIC25442YM
Standard Package
95
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
구매 후에도 계속해서 친절하게 챙겨주는 모습이 좋아요.
Dec 02, 2025
우체국과 협력하여 탁월한 배송 서비스를 제공하고 있습니다.
Dec 02, 2025
Une expérience d’achat agréable grâce à des prix abordables et un emballage durable.
Dec 02, 2025
I appreciate how straightforward their pricing is, making my planning easier.
Dec 02, 2025
Their commitment to maintaining high inventory levels ensures continuous supply for my needs.
Dec 02, 2025
Thanks to their price advantage, I can afford multiple items without breaking the bank.
Dec 02, 2025
DiGi Electronics' products always meet my expectations for consistency and quality.
Dec 02, 2025
I appreciated how quickly they shipped and responded to my inquiries.
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Frequently Asked Questions (FAQ)
I’m replacing an ON NCP380LS15A high-side switch with Microchip’s MIC2544-2YM in a 5 V, 1.2 A USB load; what layout or current-limit tweaks prevent MIC2544-2YM 0.08 Ω typical Rds-on from overheating on a 4-layer board when ambient reaches 70 °C?
Keep MIC2544-2YM junction ≤ 125 °C by adding 600 mm² of 2-oz copper to its drain tab, maintain 25 °C/W θJA, and set the adjustable Ilim resistor to 1.5 A so fold-back trips at 1.8 A—this leaves 0.3 A safety margin and limits dissipation to 0.12 W at 70 °C ambient.
In a 3.3 V battery-powered design is MIC2544-2YM safe to parallel with TPS2051B to reach 2 A, and what gate-sequencing or ballast tricks avoid shoot-through between the two switches?
Yes, MIC2544-2YM can be paralleled; add 100 mΩ ±1 % series resistor on each output so current shares within 10 %, tie both ENABLE pins together through 10 kΩ, and switch them simultaneously—never stagger—to prevent one device hogging current and triggering thermal shutdown first.
When swapping the TI TPS2553DBV (SOT-23-6) for MIC2544-2YM (SOIC-8) in an 85 °C automotive USB port, will the 80 mΩ vs. 65 mΩ Rds-on difference plus SOIC-8 longer leads violate USB voltage-drop budget?
At 1.5 A the extra 15 mΩ adds only 22.5 mV drop; budget 250 mV for the entire VBUS path—if your trace length is < 80 mm of 1-oz copper the swap is safe, otherwise widen the power trace to 0.75 mm or switch to 2-oz layers to stay within spec.
Does MIC2544-2YM require a dedicated reverse-voltage blocking MOSFET if the USB host is hot-plugged while the 5 V rail is off, and can its body diode survive –1 A reverse current?
MIC2544-2YM body diode is rated for –1 A pulsed but continuous reverse current will raise Tj; place a low-Vf 2 A Schottky (e.g., B240) from VIN to VOUT cathode toward the load, keeping reverse leakage < 50 µA and protecting the switch when host back-feeds.
For a space-constrained wearable using MIC2544-2YM with 0.8 A pulsed load every 20 ms, is the 80 mΩ on-resistance low enough to avoid brownout on a 3.7 V Li-Ion whose ESR is 150 mΩ at –10 °C?
The MIC2544-2YM adds 128 mV drop at 0.8 A; combined with 120 mV battery ESR drop you still have 3.45 V at the load—above USB 3.0 3.2 V minimum—so no brownout; add 22 µF low-ESR ceramic on VIN and 47 µF on VOUT to keep transient dip < 100 mV.
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.
MIC2544-2YM CAD Models
Microchip Technology MIC2544-2YM PCB symbols & footprints
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