Choose your country or region.

EnglishFrançaispolskiSlovenija한국의DeutschSvenskaSlovenskáMagyarországItaliaहिंदीрусскийTiếng ViệtSuomiespañolKongeriketPortuguêsภาษาไทยБългарски езикromânescČeštinaGaeilgeעִבְרִיתالعربيةPilipinoDanskMelayuIndonesiaHrvatskaفارسیNederlandTürk diliΕλλάδαRepublika e ShqipërisëአማርኛAzərbaycanEesti VabariikEuskeraБеларусьíslenskaBosnaAfrikaansIsiXhosaisiZuluCambodiaსაქართველოҚазақшаAyitiHausaКыргыз тилиGalegoCatalàCorsaKurdîLatviešuພາສາລາວlietuviųLëtzebuergeschmalaɡasʲМакедонскиMaoriМонголулсবাংলা ভাষারမြန်မာनेपालीپښتوChicheŵaCрпскиSesothoසිංහලKiswahiliТоҷикӣاردوУкраїнаO'zbekગુજરાતીಕನ್ನಡkannaḍaதமிழ் மொழி繁体中文
Home > Products > Integrated Circuits (ICs) > Specialized ICs > SP2538C
Image may be representation.
See specs for product details.

SP2538C

Manufacturer Part Number:
SP2538C
Manufacturer / Brand
SP
Part of Description:
SP SOP7
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 3840 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

Inquiry Online

Please complete all required fields with your contact information.Click "SUBMIT REQUEST" we will contact you shortly by email. Or Email us: Info@IC-Components.com
Part Number
Manufacturer
Require Quantity
Target Price(USD)
Company Name
Contact Name
E-mail
Phone
Message
Please enter Verify Code and click "Submit"
Part Number SP2538C
Manufacturer / Brand SP
Stock Quantity 3840 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description SP SOP7
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.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

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

What are the key design constraints when integrating the SP2538C into a low-power industrial sensor node with intermittent 3.3V operation?
The SP2538C operates within a narrow input voltage range typical of SOT23-6 packaged regulators, requiring stable 3.3V rail conditioning when used in duty-cycled systems. Its quiescent current and transient response must be evaluated under pulsed load conditions common in sensor nodes; improper decoupling or undersized output capacitance may cause voltage droop during wake-up events. Ensure PCB layout minimizes trace inductance between the SP2538C and load to avoid instability during fast load transitions.
Can the SP2538C replace a Texas Instruments TPS79633DCQ in an existing 3.3V rail design without firmware or hardware modifications?
Direct replacement of the TPS79633DCQ with the SP2538C is not recommended without validation. While both provide 3.3V output in small packages, the SP2538C has different enable thresholds, soft-start characteristics, and dropout voltage behavior. The enable pin logic levels and shutdown current differ significantly, which may affect power sequencing in microcontroller-based systems. Re-evaluate enable timing and verify output stability under full load step conditions before migration.
What are the thermal implications of using the SP2538C in a sealed industrial enclosure with ambient temperatures reaching 70°C?
The SP2538C’s SOT23-6 package has limited thermal dissipation capability. At 70°C ambient and moderate load currents, junction temperature may approach safe operating limits due to reduced heat transfer in enclosed environments. Calculate worst-case power dissipation (P = (Vin – Vout) × Iload) and ensure adequate copper pour or thermal vias under the package. Derating output current above 60°C ambient is advised to maintain long-term reliability.
Is the SP2538C suitable for powering noise-sensitive analog front-ends in data acquisition systems?
The SP2538C can be used for analog supply rails if proper filtering is implemented. While it provides regulated output, its switching noise profile (if it’s a switching regulator) or PSRR (if linear) must be assessed relative to the signal chain’s sensitivity. For high-precision ADCs or amplifiers, add a π-filter or ferrite bead followed by a low-ESR ceramic capacitor at the load point. Verify output ripple with an oscilloscope under dynamic load conditions.
What configuration or external components are required to ensure stable startup of the SP2538C in a battery-powered device with slowly rising input voltage?
The SP2538C may exhibit unpredictable startup behavior if the input voltage ramps slowly, as its internal UVLO (undervoltage lockout) threshold and hysteresis are not always specified in detail. To ensure reliable turn-on, use a supervisor circuit or add a small preload resistor to prevent floating states. Include a 1µF ceramic input capacitor close to the pin and verify startup sequence with a variable DC supply simulating battery rise time.
Are there known compatibility issues when paralleling multiple SP2538C units for higher current delivery in redundant power architectures?
The SP2538C is not designed for current sharing or parallel operation. Attempting to parallel units without external ballast resistors or active current-sharing circuitry can lead to uneven load distribution and thermal runaway. Each device may exhibit slight output voltage tolerance differences, causing one unit to carry disproportionate current. For higher current needs, select a single regulator rated for the total load rather than paralleling SP2538C devices.
How does long-term reliability of the SP2538C compare to automotive-grade alternatives when deployed in field equipment with 10-year service life expectations?
The SP2538C is typically rated for commercial or industrial temperature ranges (0°C to 70°C or -40°C to 85°C) and lacks AEC-Q100 qualification. For 10-year field deployments, especially in harsh environments, consider alternatives with proven lifetime data, higher temperature ratings, and burn-in testing. Monitor solder joint integrity over thermal cycles, as SOT23-6 packages are susceptible to fatigue in high-vibration settings.
What are the risks of substituting the SP2538C with a pin-compatible SOT23-6 regulator from a different manufacturer in a legacy design?
Pin compatibility does not guarantee functional equivalence. Substituting the SP2538C with another SOT23-6 regulator may introduce differences in output accuracy, transient response, enable logic polarity, or quiescent current. For example, some alternatives may lack internal soft-start, leading to inrush current issues. Always cross-check electrical characteristics, thermal performance, and startup timing before substitution, even if footprints match.
Can the SP2538C be used in a 5V-tolerant I/O system where the input may occasionally exceed the nominal supply voltage?
The SP2538C’s absolute maximum input voltage rating must not be exceeded, even transiently. If the input rail is subject to voltage spikes above its specified limit (e.g., from inductive loads or hot-plug events), add input clamping diodes or TVS protection. Do not rely on internal ESD structures for sustained overvoltage conditions. Verify with transient testing using a surge generator simulating real-world disturbances.
What layout practices are critical to prevent oscillation or instability in the SP2538C when placed on a 2-layer PCB with limited ground plane area?
On 2-layer boards, maintain a solid ground return path beneath the SP2538C and minimize loop area between input capacitor, output capacitor, and the regulator. Place the output capacitor within 5mm of the VOUT and GND pins using short, wide traces. Avoid routing high-speed digital signals under the device. A poor ground plane can introduce parasitic inductance, leading to output ringing or instability under load transients—validate with a network analyzer or time-domain ripple measurement.

Recent Reviews

Leave Comment
Hello, you have not logged in, please log in
User Login

Forgot password?

No account yet? Register now

Tips
Please speak legally
Your email will be hidden
Please complete all required fields ( denoted with* )
Mark
5.0

You May Also Be Interested In:


SP2538C

SP

SP SOP7

In Stock: 3840

SUBMIT RFQ