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Home > Products > Integrated Circuits (ICs) > Specialized ICs > EUP7201-3.0/3.3VIR1
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EUP7201-3.0/3.3VIR1

Manufacturer Part Number:
EUP7201-3.0/3.3VIR1
Manufacturer / Brand
EUTECH
Part of Description:
EUTECH SOT23-6
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 3870 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number EUP7201-3.0/3.3VIR1
Manufacturer / Brand EUTECH
Stock Quantity 3870 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description EUTECH SOT23-6
Lead Free Status / RoHS Status: RoHS Compliant
Condition New Original Stock
Warranty 100% Perfect Functions
Lead Time 2-3days after payment.
Payment Credit Card / PayPal / Telegraphic Transfer (T/T) / Western Union
Shipping by DHL / Fedex / UPS / TNT
Port HongKong
RFQ Email Info@IC-Components.com

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

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Company Name : IC COMPONENTS LTD
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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

What are the key electrical and thermal considerations when integrating the EUP7201-3.0/3.3VIR1 into a compact industrial sensor design with limited PCB real estate?
The EUP7201-3.0/3.3VIR1 is a high-efficiency buck converter in SOT23-6 packaging, suitable for space-constrained applications such as industrial sensors. However, due to its small footprint, thermal management becomes critical under continuous full-load operation. Engineers must ensure adequate copper pour or thermal vias near the IC to dissipate heat effectively, especially when operating at input voltages close to the maximum rated value or in environments exceeding 40°C ambient temperature. Failure to do so may result in thermal shutdown or reduced reliability over time.
How does the EUP7201-3.0/3.3VIR1 handle transient load conditions commonly found in battery-powered wireless monitoring systems?
The EUP7201-3.0/3.3VIR1 features internal compensation and fast feedback response, allowing it to maintain stable output voltage during rapid load transients typical of wake-up events in IoT devices. Its switching frequency (typically 1.2 MHz) enables use of small ceramic inductors and capacitors, which helps sustain performance under pulsed loads without significant droop or overshoot, making it well-suited for intermittent duty-cycle applications.
Can the EUP7201-3.0/3.3VIR1 be safely used as a direct replacement for the MP1584EN in legacy designs requiring 3.3V output from a 5V input rail?
While both are synchronous buck regulators, the EUP7201-3.0/3.3VIR1 has different control architecture and external component requirements compared to the MP1584EN. Direct pin compatibility is not guaranteed due to differing pin functions and layout sensitivities. A design review is necessary to verify inductor selection, compensation network, and PCB layout parasitics. Additionally, the EUP7201’s higher switching frequency may require reassessment of EMI characteristics and filtering components.
What precautions should be taken when cascading multiple power rails using the EUP7201-3.0/3.3VIR1 in a multi-voltage industrial controller board?
When using multiple EUP7201-3.0/3.3VIR1 units on the same board, careful attention must be paid to ground plane integrity and noise coupling between switching loops. Each converter should have dedicated input decoupling capacitors placed close to the VIN pins, and output filtering should minimize interaction through shared traces. Simultaneous switching noise can affect sensitive analog circuits if not properly isolated, particularly in mixed-signal industrial control systems.
Is the EUP7201-3.0/3.3VIR1 suitable for automotive-grade temperature cycling environments?
The EUP7201-3.0/3.3VIR1 is specified for operation from -40°C to +85°C, meeting basic industrial temperature ranges but not AEC-Q100 qualification required for most automotive applications. While it may function reliably in non-critical automotive subsystems, designers should avoid using it in safety-related or long-duration exposure scenarios where thermal cycling and vibration could compromise solder joints or internal bond wires over time.
How does the enable pin behavior of the EUP7201-3.0/3.3VIR1 impact system-level power sequencing in battery backup configurations?
The enable pin on the EUP7201-3.0/3.3VIR1 operates with a fixed threshold voltage (~1.2V), allowing simple logic-level control. This enables straightforward integration into microcontroller-based power management schemes where delayed startup or shutdown sequences are needed. However, designers must ensure the enable signal is stable before input power ramps up to prevent unintended oscillations or latch-up conditions during brownout events.
Are there any known limitations when using the EUP7201-3.0/3.3VIR1 with low ESR output capacitors beyond recommended values?
Yes. Although the EUP7201-3.0/3.3VIR1 supports ceramic output capacitors, excessive use of very low ESR types (e.g., ultra-low ESL MLCCs) can destabilize the feedback loop due to phase margin degradation. If such capacitors are unavoidable, a minimal series resistance (typically 1–10Ω) should be added to dampen resonant peaks. Always validate stability with actual load steps rather than relying solely on simulation models.
What design trade-offs exist when choosing the EUP7201-3.0/3.3VIR1 over a linear regulator for noise-sensitive analog front-end circuits?
While the EUP7201-3.0/3.3VIR1 offers higher efficiency than linear regulators, its switching nature introduces conducted and radiated EMI that can couple into nearby analog signals. In precision measurement systems, additional post-regulation (e.g., LDO after buck) may be required to meet SNR requirements. Thus, the choice depends on whether energy efficiency outweighs the need for ultra-low noise, and if so, proper layout isolation and shielding must be implemented.
Can the EUP7201-3.0/3.3VIR1 operate reliably in systems with frequent input voltage dips below 4V?
The EUP7201-3.0/3.3VIR1 supports a wide input range (up to 24V nominal), but continuous operation below 4V may push it near dropout, reducing headroom and increasing conduction losses. At low input levels, output regulation accuracy and transient response degrade slightly. For systems experiencing sustained dips below 4V, an input pre-regulator or bulk capacitance upgrade may be necessary to maintain performance.
What are the implications of using the EUP7201-3.0/3.3VIR1 with non-standard inductor values outside the datasheet recommendations?
Deviating from recommended inductance values alters the converter’s current ripple and crossover frequency, potentially affecting efficiency, thermal performance, and stability. Using inductors with higher DCR increases power loss and heat generation, while lower inductance raises peak currents and EMI. Designers must revalidate loop compensation and ensure no saturation occurs under worst-case load and temperature conditions.

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