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Home > Products > Integrated Circuits (ICs) > Specialized ICs > MM3721HL1RRE
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MM3721HL1RRE

Manufacturer Part Number:
MM3721HL1RRE
Manufacturer / Brand
MITSUMI
Part of Description:
821
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 4660 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MM3721HL1RRE
Manufacturer / Brand MITSUMI
Stock Quantity 4660 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description 821
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 constraints when integrating the MM3721HL1RRE into a high-reliability industrial power supply design with tight transient response requirements?
The MM3721HL1RRE features a fixed 5V output and internal current limiting, which may not support wide input voltage ranges or fast dynamic load steps without careful PCB layout and compensation. Designers must ensure adequate bypassing on VIN and VOUT, verify stability across the full operating temperature range (-40°C to +85°C), and account for its limited bandwidth when responding to rapid load transients.
Can the MM3721HL1RRE be used as a replacement for linear regulators in low-noise analog front-end circuits without introducing unacceptable noise or ripple?
While the MM3721HL1RRE offers low quiescent current and small footprint, its switching architecture introduces higher output ripple compared to LDOs, which may interfere with sensitive analog signals. It is generally unsuitable for precision ADC or sensor bias rails unless post-regulation via LC filtering or an additional LDO is implemented.
What considerations apply when migrating from discrete LDOs to the MM3721HL1RRE in battery-powered IoT edge devices to optimize long-term energy efficiency?
The MM3721HL1RRE consumes significantly less quiescent current (typically 25 µA) than many linear regulators, making it favorable for sleep-mode operation. However, designers must evaluate total system efficiency under both active and standby modes, confirm compatibility with minimum input voltages during deep discharge cycles, and ensure proper thermal management given its compact QFN package limits heat dissipation.
Is the MM3721HL1RRE suitable for automotive-grade applications requiring AEC-Q100 qualification and functional safety compliance?
No, the MM3721HL1RRE is not specified for automotive environments and lacks AEC-Q100 certification. Its extended industrial temperature range (-40°C to +85°C) may meet basic automotive infotainment needs only if supplemented by external protections and rigorous derating; however, it does not fulfill core safety integrity levels required for mission-critical vehicle systems.
How does the startup behavior of the MM3721HL1RRE affect system sequencing in multi-rail designs where power-up timing is critical?
The device employs an internal soft-start mechanism that limits inrush current but can cause delayed regulation onset relative to other rails. If downstream ICs require early stable power, additional pre-charge circuits or coordination via enable pins may be necessary to avoid brownout resets or latch-up conditions.
What precautions should be taken regarding layout parasitics when placing the MM3721HL1RRE near high-frequency digital loads to prevent feedback coupling?
Due to its switch-mode operation, the MM3721HL1RRE generates high-frequency switching noise that can couple onto nearby traces. Designers must minimize loop inductance by placing input/output capacitors close to the IC, use ground planes beneath the component, and separate analog/digital return paths to maintain signal integrity.
Can the MM3721HL1RRE replace the TI TPS62130 in designs requiring 3.3V output but operating at lower input voltages such as 2.7V?
No, the MM3721HL1RRE provides only a fixed 5V output and has a typical dropout voltage of ~300 mV. At 2.7V input, it cannot regulate reliably and risks entering undervoltage lockout or excessive dropout loss. For 3.3V applications at low Vin, a buck converter or dedicated 3.3V regulator like the TPS62130 would be more appropriate.
What reliability risks arise from long-term operation of the MM3721HL1RRE in dusty or moisture-prone environments despite its industrial rating?
Although rated for -40°C to +85°C operation, the small QFN-6 package offers minimal protection against environmental ingress. Without conformal coating or enclosure sealing, corrosion or particulate accumulation on exposed pads can degrade solder joints over time. Reliability assessments should include accelerated life testing under humid conditions.
Does the MM3721HL1RRE support hot-swapping or live insertion in systems where power rails must remain stable during module replacement?
Hot-swapping is not supported due to the absence of input undervoltage lockout hysteresis and lack of reverse-current blocking features. Inserting the module while powered could cause inrush surges or damage to upstream components; thus, external series resistors or MOSFET-based isolation circuits are recommended for safe hot-plug scenarios.
How should thermal performance be evaluated when using the MM3721HL1RRE in densely populated PCBs with limited airflow and ambient temperatures near +80°C?
Thermal resistance (θJA) is elevated in compact layouts due to poor heat sinking. Designers must calculate junction temperature rise based on power dissipation (Pd = (Vin - Vout) × Iout + IQ × Vin), verify it remains below 125°C, and consider adding thermal vias or adjacent copper pour areas to improve conduction to the board plane.

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MM3721HL1RRE

MITSUMI

821

In Stock: 4660

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