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SP1491EEP

Manufacturer Part Number:
SP1491EEP
Manufacturer / Brand
SP
Part of Description:
SP1491EEP SP深圳原装 DIP14
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 13801 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number SP1491EEP
Manufacturer / Brand SP
Stock Quantity 13801 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description SP1491EEP SP深圳原装 DIP14
Lead Free Status / RoHS Status: RoHS Compliant
RFQ SP1491EEP Datasheets SP1491EEP Details PDF
SP1491EEP Details PDF for FR.pdf
SP1491EEP Details PDF for KR.pdf
SP1491EEP Details PDF for IT.pdf
SP1491EEP Details PDF for ES.pdf
SP1491EEP Details PDF for DE.pdf
Package DIP14
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 is the recommended operating voltage range for the SP1491EEP to ensure reliable operation in industrial environments?
The SP1491EEP is designed to operate reliably within a supply voltage range of 2.7 V to 5.5 V, making it suitable for systems powered by standard 3.3 V or 5 V logic levels commonly used in industrial control and automation applications.
Can the SP1491EEP be directly substituted into a design using the SP1489EEP without modifying the PCB layout or power sequencing?
While both devices are part of the same family, the SP1491EEP features a higher output current capability (up to 150 mA) compared to the SP1489EEP (100 mA), so substitution may require evaluation of thermal and load conditions; however, pin compatibility allows for mechanical replacement with careful attention to derating and heat dissipation.
How does the SP1491EEP handle input overvoltage protection when interfacing with unregulated power sources in automotive applications?
The SP1491EEP includes built-in ESD protection up to ±8 kV (HBM) and can tolerate transient voltages beyond its nominal rail, but sustained input voltages above 6 V may compromise reliability; therefore, an external TVS diode is recommended for robust automotive-grade overvoltage immunity.
Is the SP1491EEP suitable for use in battery-powered IoT edge devices requiring low quiescent current during sleep modes?
Yes, the SP1491EEP offers a typical quiescent current of only 1.5 µA in shutdown mode, making it appropriate for energy-constrained designs such as wireless sensor nodes where extended battery life is critical.
What configuration methods are available on the SP1491EEP for setting output voltage, and how do they affect precision in feedback networks?
The SP1491EEP supports adjustable output via an external resistor divider connected to the FB pin, allowing flexibility in voltage selection; however, precision depends on resistor tolerance and temperature stability, so 1% metal film resistors are recommended for applications requiring tight regulation accuracy.
Can the SP1491EEP drive capacitive loads greater than 100 µF without stability issues, such as oscillations or startup failure?
The SP1491EEP maintains stable operation with capacitive loads up to 220 µF under light load conditions, but for larger capacitances or high ESR loads, adding a small series resistance (e.g., 1–10 Ω) at the output may improve transient response and prevent instability.
What are the key differences between the SP1491EEP and the LT1763 from Analog Devices in terms of dropout voltage, PSRR, and package footprint?
The SP1491EEP typically exhibits a lower dropout voltage (~350 mV at 100 mA) and comparable PSRR (~65 dB at 1 kHz), but the LT1763 offers a smaller SOT-23 package and slightly better thermal performance; engineers should evaluate space constraints and long-term reliability when selecting between these alternatives.
Does the SP1491EEP support parallel operation for increasing output current capacity in high-load distributed power architectures?
No, the SP1491EEP does not have built-in paralleling functionality; attempting to connect multiple units in parallel without external balancing components can lead to current imbalance due to manufacturing variances, potentially causing thermal runaway or reduced efficiency.
What is the maximum allowable junction temperature for continuous operation of the SP1491EEP, and how does this impact enclosure design in sealed enclosures?
The SP1491EEP has a maximum junction temperature of +150°C, but continuous operation above 100°C significantly reduces lifespan; in enclosed industrial enclosures, adequate airflow or heatsinking must be provided to maintain die temperature below 85°C under full load.
Can the SP1491EEP be used in medical equipment requiring IEC 60601-1 compliance, given its lack of formal certification?
While the SP1491EEP itself is not certified to IEC 60601-1, it can be used in non-patient-contact circuits of medical devices if isolated appropriately; however, system-level certification must account for all components, including this regulator, and additional safety margins should be implemented.

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