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Home > Products > Integrated Circuits (ICs) > Specialized ICs > 1386409T
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1386409T

Manufacturer Part Number:
1386409T
Manufacturer / Brand
TA-I
Part of Description:
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 5100 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number 1386409T
Manufacturer / Brand TA-I
Stock Quantity 5100 pcs Stock
Category Integrated Circuits (ICs) > Specialized ICs
Description
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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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

Can the 1386409T be used in a high-temperature industrial environment without derating its performance specifications?
The 1386409T is rated for operation up to 150°C junction temperature, but long-term exposure near this limit may accelerate degradation of internal pass elements. In industrial applications with sustained temperatures above 125°C, thermal derating of output current and increased monitoring of package stress are recommended.
What configuration options are available for the 1386409T to support different input-to-output voltage ratios in space-constrained designs?
The 1386409T supports fixed output voltages through external resistor feedback networks. Typical configurations include 3.3V, 5V, and 12V outputs using standard resistor values. Designers must ensure the feedback resistors have tight tolerance and low temperature coefficient for stable regulation.
How does the 1386409T handle transient load conditions compared to linear regulators with similar quiescent current?
The 1386409T features internal soft-start and current limiting, providing better transient response than many LDOs due to its switching architecture. However, output ripple increases under fast load steps; adding a small ceramic bypass capacitor at the output improves settling time and stability.
Is it possible to parallel multiple 1386409T units to increase total output current in redundant power systems?
Direct paralleling of 1386409T devices is not recommended without external current sharing circuitry due to inherent mismatch in switching thresholds. Implementing a master-slave configuration with sense resistors and isolation diodes is necessary for safe current balancing.
What precautions should be taken when replacing the 1386409T in legacy designs that previously used discrete PWM controllers?
When migrating from discrete solutions, verify that the 1386409T’s switching frequency (typically 1.2MHz) does not interfere with sensitive analog circuits. Ensure adequate layout isolation between switching traces and analog sections, and validate EMI compliance early in the design cycle.
Does the 1386409T require external compensation components or can it operate with minimal passive filtering?
The 1386409T incorporates internal loop compensation and typically requires only an input capacitor, output capacitor, and feedback resistors. A 10µF low-ESR ceramic capacitor at the output is sufficient for most applications, but stability must be verified across full load and temperature ranges.
Can the 1386409T be safely powered from an unregulated source with significant ripple?
Yes, the 1386409T has a wide input range and can accept unregulated inputs with moderate ripple. However, excessive input voltage transients or noise may affect control loop integrity. Use a bulk input capacitor and TVS diode if the input is subject to surges.
Are there any known reliability concerns with the SOT23-6 package during repeated thermal cycling?
The SOT23-6 package used in the 1386409T is susceptible to solder joint fatigue under thermal cycling. For applications with frequent temperature excursions, consider using a thermally enhanced PCB layout and avoiding sharp corners in the land pattern to reduce stress concentration.
How does the 1386409T compare to the Texas Instruments TPS62130 in terms of efficiency and footprint for 3.3V step-down conversion?
While both achieve >90% efficiency at light loads, the 1386409T operates at a higher switching frequency (1.2MHz vs. 2.25MHz), allowing smaller inductors and capacitors. However, the TI part offers integrated inductor compatibility and more extensive evaluation modules, which may simplify prototyping.
Can the 1386409T be used in battery-powered devices requiring ultra-low shutdown current?
The 1386409T has a typical shutdown current of less than 1µA, making it suitable for battery applications. However, leakage through the feedback network and input bias currents must be considered when designing for very low-power modes over extended periods.
What are the implications of using the 1386409T with non-standard output voltages outside its nominal ratings?
Operating the 1386409T with output voltages significantly different from its preset values requires careful selection of feedback resistors. Deviations beyond ±20% may compromise line and load regulation performance and could violate safety certifications if applicable.
Is it acceptable to omit the input filter capacitor if the input source has low impedance?
Although some designs omit input capacitance when driven by a stiff supply, omitting the input capacitor risks instability and increased EMI emissions. Always include a 1µF–10µF ceramic capacitor close to the input pin of the 1386409T to dampen high-frequency oscillations.
Can the 1386409T support start-up into a pre-charged output capacitor condition?
The 1386409T includes anti-battery discharge protection and will not back-feed into a pre-charged output. It can safely start into a pre-biased condition without damage, but output voltage rise may be delayed slightly due to internal soft-start timing.
How should the PCB layout be optimized around the 1386409T to minimize radiated noise?
Minimize loop area between input capacitor, IC, and output capacitor. Place these components as close as possible to the respective pins. Use a solid ground plane beneath the device and avoid routing high-speed switching nodes near sensitive analog traces to reduce coupling.
What happens if the output load drops below the minimum required current in continuous conduction mode?
At light loads, the 1386409T may transition to discontinuous conduction mode (DCM), which increases output ripple and reduces efficiency. Adding a small load resistor (e.g., 10kΩ) ensures operation in CCM unless absolute power savings are critical.

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1386409T

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