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 > SP1937S25RG
Image may be representation.
See specs for product details.

SP1937S25RG

Manufacturer Part Number:
SP1937S25RG
Manufacturer / Brand
CPOWER
Part of Description:
SP1937S25RG SYNCPOWER SOT23-5
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 35635 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 SP1937S25RG
Manufacturer / Brand CPOWER
Stock Quantity 35635 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description SP1937S25RG SYNCPOWER SOT23-5
Lead Free Status / RoHS Status: RoHS Compliant
RFQ SP1937S25RG Datasheets SP1937S25RG Details PDF
SP1937S25RG Details PDF for KR.pdf
SP1937S25RG Details PDF for IT.pdf
SP1937S25RG Details PDF for ES.pdf
SP1937S25RG Details PDF for DE.pdf
SP1937S25RG Details PDF for FR.pdf
Package SOT23-5
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 considerations when integrating the SP1937S25RG into a low-power industrial control system with strict voltage tolerance requirements?
The SP1937S25RG, a CPOWER SOT-23-5L regulator, operates at a fixed output of 2.5V and requires careful evaluation of input voltage headroom to maintain regulation under transient loads. Engineers must ensure the minimum input-output differential remains within specifications during worst-case conditions, especially in battery-powered or energy-harvesting applications where dropout voltage impacts efficiency. Additionally, thermal derating in compact SOT-23-5L packaging may limit sustained current delivery above 200mA in ambient temperatures exceeding 70°C without external thermal management.
Can the SP1937S25RG be safely used as a drop-in replacement for the SP1936S25RG in existing designs, or are there critical differences that could affect long-term reliability?
While both devices share the same package and nominal output voltage, the SP1937S25RG features improved PSRR (Power Supply Rejection Ratio) and reduced quiescent current compared to the SP1936S25RG. This makes it suitable for noise-sensitive analog front-ends but introduces potential compatibility concerns if legacy designs rely on higher ground current draw or specific startup behavior. Substitution should include verification of loop stability and transient response under load step conditions.
What precautions should be taken when routing power traces near the SP1937S25RG to minimize electromagnetic interference in high-impedance sensor circuits?
Due to its high output impedance at high frequencies, the SP1937S25RG is sensitive to parasitic inductance and capacitance in its feedback network and bypass capacitors. To reduce EMI coupling, keep the input and output capacitors as close as possible—ideally within 5mm of the pins—and route power traces perpendicular to sensitive signal lines. Use a solid ground plane beneath the component to enhance shielding and reduce radiated noise.
Is the SP1937S25RG appropriate for automotive-grade applications requiring AEC-Q100 qualification, or does it lack necessary certifications?
The SP1937S25RG is not currently qualified to AEC-Q100 standards and lacks automotive-specific temperature grade ratings beyond standard commercial ranges. It may be acceptable in non-critical infotainment subsystems if derated appropriately, but it is generally unsuitable for safety-related systems such as ADAS, powertrain controls, or door/window modules where failure risk must be minimized through certified components.
How does the startup time of the SP1937S25RG compare to other SOT-23-5 regulators when driving capacitive loads greater than 10µF?
The SP1937S25RG exhibits a typical soft-start duration of 1.2ms, which can extend significantly when loaded with large capacitances due to internal current limiting. In designs using bulk decoupling capacitors above 10µF, this may cause visible glitches on downstream ICs during power-up. Adding a small pre-charge circuit or selecting a variant with faster slew-rate control can mitigate inrush issues in such configurations.
Are there known limitations when cascading the SP1937S25RG with digital logic operating at 3.3V levels in mixed-signal PCBs?
Directly driving 3.3V CMOS inputs from the 2.5V output of the SP1937S25RG violates typical logic threshold margins unless buffered with level shifters. While some TTL-compatible devices may tolerate this, most modern microcontrollers require rail-to-rail voltage matching. Therefore, interfacing without translation circuitry risks logic errors, especially under process-voltage-temperature (PVT) corners where noise margins shrink.
What is the recommended method for testing the stability margin of the SP1937S25RG in production environments without expensive lab equipment?
A practical approach involves monitoring output ripple during load transients using an oscilloscope with 10x probing and a short ground lead. Inject a 50mA step change and verify recovery time remains under 20µs while observing no overshoot exceeding 5%. For batch validation, measure phase margin indirectly by analyzing switching noise spectrum—excessive ringing indicates insufficient compensation capacitance or layout-induced instability.
Can the SP1937S25RG operate reliably in environments with periodic power cycling lasting less than 100ms, such as in sleep-wake sensor nodes?
Yes, the device supports sub-millisecond restart capability provided input voltage stays within absolute maximum ratings during off periods. However, repeated cycling below 100ms may stress internal bias circuitry over time; cumulative exposure to rapid turn-on/turn-off events should be assessed via accelerated life testing if used in mission-critical duty-cycled applications like wireless IoT endpoints.
What trade-offs exist between using the SP1937S25RG versus an LDO with adjustable feedback resistors for a 2.5V bias rail in space-constrained PCBs?
The SP1937S25RG eliminates the need for external resistors, saving PCB area and reducing BOM count. However, fixed-output regulators like it offer less flexibility for fine-tuning during prototyping or yield adjustments. If future revision requires different voltages or trim points, migration to an adjustable topology becomes necessary, increasing complexity unless the design locks the resistor values permanently.
Does the SP1937S25RG require any special handling during reflow soldering to prevent damage to its thin-gate MOSFET structure?
Standard JEDEC J-STD-020 reflow profiles are sufficient, but peak temperature must not exceed 260°C for more than 10 seconds to avoid degradation of internal passivation layers. Refluxing multiple times increases risk of electromigration in bond wires; therefore, single-pass assembly is strongly advised for consistent long-term reliability in mass-production scenarios.

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:


SP1937S25RG

CPOWER

SP1937S25RG SYNCPOWER SOT23-5

In Stock: 35635

SUBMIT RFQ