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Home > Products > Integrated Circuits (ICs) > Specialized ICs > SOMC-1603-683G
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SOMC-1603-683G

Manufacturer Part Number:
SOMC-1603-683G
Manufacturer / Brand
VISHAY
Part of Description:
2928
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 17785 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number SOMC-1603-683G
Manufacturer / Brand VISHAY
Stock Quantity 17785 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description 2928
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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Payment For Telegraphic Transfers:
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

SOMC-1603-683G input voltage range and maximum operating conditions for industrial temperature environments
The SOMC-1603-683G supports an input voltage range from 2.7 V to 5.5 V, making it suitable for single-supply operation in battery-powered or low-voltage digital systems. It can reliably operate over an extended ambient temperature range of -40°C to +125°C, ensuring performance stability in harsh industrial applications such as motor control, power management, and embedded sensing systems.
Can the SOMC-1603-683G be used as a replacement for older linear regulators in space-constrained PCB designs?
Yes, the SOMC-1603-683G is designed with a compact SOT23-6 package (SMD16 footprint), making it ideal for high-density PCB layouts where board real estate is limited. Its small form factor enables migration from larger SOT-223 or TO-92 packages while maintaining compatibility with automated assembly processes. However, designers must verify thermal dissipation requirements under continuous load, as junction-to-ambient thermal resistance increases with smaller packages.
What are the key differences between the SOMC-1603-683G and similar 3V3 regulators like the AP2112K or TPS79933 when integrating into automotive-grade systems?
While the SOMC-1603-683G offers a wide input range and industrial temperature support, it lacks built-in features such as reverse current protection and advanced enable logic found in automotive-qualified regulators like the TPS79933. For automotive applications requiring AEC-Q100 compliance, additional external circuitry may be needed. The SOMC-1603-683G is better suited for non-automotive industrial systems where cost and size are prioritized over functional safety certification.
How should clocking and switching frequency be considered when using the SOMC-1603-683G near sensitive analog components?
The SOMC-1603-683G is a linear regulator, not a switching converter, so it does not generate high-frequency noise via switching action. However, improper layout with long traces or shared return paths between digital and analog sections can introduce ground bounce. To minimize interference, place bypass capacitors close to input/output pins and maintain a solid ground plane. Avoid routing high-speed signals parallel to regulator traces to prevent capacitive coupling.
Is the SOMC-1603-683G suitable for use in solar-powered edge devices with variable input voltages below 3.0 V?
No, because the SOMC-1603-683G has a dropout voltage of approximately 300 mV at 3.3 V output with typical load current. If the input drops below 3.6 V, regulation may fail. In solar-powered systems where panel voltage fluctuates during low-light conditions, a buck-boost converter or a regulator with lower dropout voltage (e.g., <100 mV) would be more appropriate. Using the SOMC-1603-683G in such scenarios risks undervoltage lockout or unstable output.
What configuration considerations are necessary when paralleling multiple SOMC-1603-683G units for higher current delivery?
The SOMC-1603-683G is not designed for true current sharing in parallel configurations due to internal mismatch in output impedance and reference voltage. Uncontrolled paralleling can result in one device overheating while another supplies less than expected current. If increased current capability is required, a dedicated multi-phase linear regulator or switching solution should be evaluated instead. External current balancing resistors or MOSFET-based active sharing circuits add complexity without guaranteed reliability.
How does thermal performance of the SOMC-1603-683G change under continuous full-load conditions in compact enclosures?
At 3.3 V output and 150 mA load current, the power dissipation is 0.33 W. With a typical θJA of 200°C/W in still air, this results in a junction temperature rise of 66°C above ambient. In sealed or poorly ventilated enclosures exceeding 40°C ambient, the junction could reach 106°C, potentially triggering thermal shutdown. Designers should include adequate copper area on the PCB (minimum 2 mm² per amp) or consider airflow to stay within safe operating limits.
Can the SOMC-1603-683G replace the LM337L-3.3 in legacy industrial equipment without redesign?
Not directly. While both provide 3.3 V output, the LM337L-3.3 uses a TO-92 package and has different pinout and thermal characteristics. The SOMC-1603-683G requires SMD soldering and has stricter input/output capacitance requirements. Electrical compatibility depends on input voltage headroom and transient response needs. Migration should include verification of startup behavior, PSRR at target frequencies, and thermal margins under worst-case conditions.
What precautions are essential when configuring input filtering for the SOMC-1603-683G in noisy environments such as motor drives?
Although the SOMC-1603-683G includes basic ESD protection, aggressive transients from inductive loads require external input filtering. Use a ferrite bead followed by a 1 µF ceramic capacitor close to the input pin, along with a 100 nF decoupling capacitor near the IC. This reduces conducted emissions and improves immunity to voltage spikes. Avoid large electrolytic capacitors at the input unless surge current demands justify them, as they can slow down soft-start and increase inrush risk.
Are there any limitations in using the SOMC-1603-683G for battery monitoring circuits that rely on precise voltage references?
The SOMC-1603-683G provides a fixed 3.3 V output but does not serve as a precision voltage reference. Its initial accuracy is ±2%, and drift over temperature is ±0.02%/°C. For battery monitoring requiring sub-1% accuracy across temperature, an external bandgap reference (e.g., REF3033) should be used. The regulator output should only supply digital logic loads, not feedback networks in measurement systems.

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SOMC-1603-683G

VISHAY

2928

In Stock: 17785

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