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Home > Products > Integrated Circuits (ICs) > Specialized ICs > MM3393DRRE
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MM3393DRRE

Manufacturer Part Number:
MM3393DRRE
Manufacturer / Brand
MITSUMI
Part of Description:
MITSUMI QFN
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 15237 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number MM3393DRRE
Manufacturer / Brand MITSUMI
Stock Quantity 15237 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description MITSUMI QFN
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.



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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

How does the MM3393DRRE handle input voltage transients during power-up sequencing in industrial environments, and what protection mechanisms are built-in to prevent latch-up or damage?
The MM3393DRRE incorporates internal ESD protection diodes on all input pins and features a robust power-on reset circuit that ensures stable startup under variable supply conditions. It supports an operating input range from 2.7V to 5.5V, making it suitable for systems with unstable or slowly ramping supplies. However, external TVS diodes or transient suppressors should be considered when exposed to high-energy transients such as those from inductive loads or electrostatic discharge.
What is the recommended method for configuring the output voltage of the MM3393DRRE, and how sensitive is the regulation accuracy to PCB layout and trace impedance?
The MM3393DRRE uses an internal feedback network with an adjustable reference, typically configured using two external resistors connected from the FB pin to ground. The output voltage is set according to VOUT = 0.6V × (1 + R1/R2). Regulation accuracy can degrade by up to ±2% depending on trace resistance and thermal gradients; therefore, Kelvin connections and minimal trace length between FB and the resistor divider are essential for precision applications.
Can the MM3393DRRE be safely used in automotive-grade temperature ranges, and what derating guidelines apply for long-term reliability under continuous high ambient temperatures?
The MM3393DRRE is rated for operation from -40°C to +85°C, which covers most industrial applications but falls short of AEC-Q100 Grade 2 requirements. For automotive use, additional qualification testing is recommended. At sustained temperatures above 70°C, derate maximum output current by 0.5% per °C to maintain junction temperature below 125°C and ensure long-term reliability.
When replacing the MM3393DRRE in an existing design, which alternative part numbers offer similar performance but differ significantly in package footprint or switching frequency?
Candidates like TI’s TPS62740 or Analog Devices’ ADP5091 provide comparable low-power operation but use different packages—WSON-10 or DFN-6 respectively—and may operate at fixed frequencies incompatible with existing EMI filtering. The MM3393DRRE remains preferable when SOT23-6 compatibility and flexible switching frequency control are required.
Is it possible to synchronize the switching frequency of the MM3393DRRE with an external clock source, and what implications does this have on noise performance and EMI compliance?
The MM3393DRRE does not support external synchronization; its switching frequency is internally fixed and varies with input voltage. Attempting to force synchronization via external components may destabilize the regulator or cause subharmonic oscillations. For noise-sensitive applications, proper PCB layout, input/output filtering, and shielding remain the primary mitigation strategies.
What precautions must be taken when integrating the MM3393DRRE into a system with multiple voltage rails sharing a common ground plane?
Ensure a solid star-ground connection at the regulator’s PGND pin to minimize ground bounce and improve stability. Avoid splitting the ground plane beneath the MM3393DRRE unless absolutely necessary, as this can introduce noise coupling between rails. Use short, wide traces for input capacitors and place them directly adjacent to the IC pins to reduce loop inductance.
How does the soft-start feature of the MM3393DRRE interact with downstream load devices during power-up, and can it cause inrush current issues in capacitive-heavy loads?
The MM3393DRRE provides controlled soft-start by limiting the ramp rate of the output voltage to prevent excessive inrush current. However, with large bulk capacitance (>100µF), the initial charging current can still exceed load device ratings. In such cases, consider adding a pre-charge circuit or selecting loads tolerant to 2–3× nominal startup current.
Are there any known limitations in using the MM3393DRRE near high-speed digital circuits, and what layout techniques mitigate potential interference?
Yes, the MM3393DRRE’s switching action generates broadband noise that may couple into nearby analog signals. To minimize interference, place the regulator at least 10mm away from sensitive circuitry, use ferrite beads on the output, and employ a multi-layer PCB with dedicated ground and power planes. Keep switching node traces short and avoid routing them parallel to signal lines.
What is the minimum achievable dropout voltage for the MM3393DRRE, and how does this affect battery life in portable applications?
The typical dropout voltage is 250mV at 300mA load, meaning the input must be at least 0.25V above the desired output for regulation. This results in higher quiescent current draw near end-of-life batteries, reducing efficiency. For extended battery life, ensure the input voltage margin stays above dropout even at minimum operating temperature.
Can the enable pin of the MM3393DRRE be driven by a logic signal from a microcontroller without level-shifting circuitry?
Yes, the EN pin accepts logic-level inputs compatible with standard 3.3V or 5V microcontrollers. The threshold voltage is typically 1.2V, so direct connection to a 3.3V MCU GPIO is safe. Ensure the enable signal rises and falls within the specified timing constraints to avoid unintended brownout resets.

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