Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
SC2602STRT
Semtech Corporation
IC REG CTRLR BUCK 14SOIC
8440 Pcs New Original In Stock
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-SOIC
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (180 Ratings)
SC2602STRT
Product Overview
7223887
DiGi Electronics Part Number
SC2602STRT-DGManufacturer
Semtech Corporation
SC2602STRT
Description
IC REG CTRLR BUCK 14SOICInventory
8440 Pcs New Original In Stock
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-SOIC
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
SC2602STRT Technical Specifications
Category
Power Management (PMIC), DC DC Switching Controllers
Packaging
-
Series
-
Product Status
Obsolete
Output Type
Transistor Driver
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Number of Outputs
1
Output Phases
1
Voltage - Supply (Vcc/Vdd)
4.2V ~ 12.6V
Frequency - Switching
200kHz
Duty Cycle (Max)
95%
Synchronous Rectifier
Yes
Clock Sync
No
Serial Interfaces
-
Control Features
Enable, Phase Control, Power Good, Soft Start
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
14-SOIC (0.154", 3.90mm Width)
Supplier Device Package
14-SOIC
Base Product Number
SC2602
Datasheet & Documents
HTML Datasheet
SC2602STRT-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
2,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
每次都能在預期時間內收到貨，配送速度令人滿意。
December 02, 2025
Ich bin begeistert von der Kundenbetreuung bei DiGi Electronics und den klaren Preisangaben.
December 02, 2025
I am impressed by how DiGi Electronics maintains high standards across all their diverse offerings.
December 02, 2025
The customer service team at DiGi Electronics was extremely responsive and helped me resolve an issue within 24 hours, which was impressive.
December 02, 2025
I appreciate how DiGi Electronics prioritizes environmentally conscious packaging without compromising quality.
December 02, 2025
Their after-sales support is exceptional—responsive and incredibly helpful.
December 02, 2025
DiGi Electronics offers exceptional after-sales support, promptly resolving all my technical inquiries and ensuring smooth usage of their products.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key design-in risks when using the SC2602STRT in a new power supply design given its obsolete status?
Using the SC2602STRT in a new design carries significant supply chain risks due to its obsolete status from Semtech Corporation. While 8,405 units are currently available as new original stock, long-term availability is not guaranteed, which can jeopardize product lifecycle and scalability. We recommend securing a last-time buy and evaluating drop-in replacements like the MP2130DJ or Texas Instruments' TPS40192, which offer similar step-down controller features with active supply support. Designers should also verify end-of-life (EOL) notifications from Semtech and consider implementing a second-source strategy with pin-compatible alternatives to mitigate future production disruptions.
How does the SC2602STRT handle high-duty-cycle operation at low input voltages, and what board layout practices prevent instability?
The SC2602STRT supports up to 95% duty cycle, making it suitable for high-step-down applications where the input voltage is only slightly above the output. However, at low input voltages near the 4.2V minimum, maintaining regulation can challenge the controller’s internal gate drivers. To prevent oscillation or thermal runaway, use low-ESR ceramic output capacitors with adequate bulk capacitance, minimize PCB trace resistance in the feedback and current-sense paths, and ensure a solid ground plane. Keep high-current paths (inductor to MOSFETs to output) short and symmetric, and shield sensitive analog nodes (like the feedback divider) from switching noise to maintain loop stability.
Can the SC2602STRT replace the LTC1702A in an existing buck converter design, and what modifications are required?
The SC2602STRT can partially replace the LTC1702A in a 200kHz synchronous buck design but requires several critical adjustments. Both are 14-SOIC step-down controllers with similar voltage and frequency ranges, but the SC2602STRT integrates synchronous rectification control and phase management, while the LTC1702A uses external gate drivers. You must verify compatibility of the driver strength and re-evaluate the external MOSFET gate drive circuit, especially turn-on thresholds. Additionally, the SC2602STRT’s soft-start and power-good timing differ, so adjust RC components on SS and PGOOD pins accordingly. Test under load transient conditions to confirm stable startup and avoid output overshoot.
What are the thermal and reliability concerns when operating the SC2602STRT at 85°C ambient temperature in a tightly regulated power rail?
Operating the SC2602STRT at its maximum rated ambient temperature of 85°C requires careful thermal management to avoid latent reliability issues. While the device is specified for -40°C to 85°C (TA), junction temperature can exceed limits if the PCB lacks proper copper heatsinking. Use at least two thermal vias under the exposed pad (if present, though not specified here), connect the GND pin to a large copper pour, and avoid placing heat-generating components nearby. Derate the maximum load current in high-temp environments and monitor PGOOD behavior over temperature cycles. Additionally, ensure input voltage stays within the 4.2V–12.6V window, as overvoltage stress at high temperature accelerates wear-out failure mechanisms.
How do the control features—Enable, Power Good, and Phase Control—impact system integration in multi-rail designs using the SC2602STRT?
The Enable, Power Good, and Phase Control features of the SC2602STRT provide critical sequencing and stability functions in multi-rail systems. Use the Enable pin to implement undervoltage lockout (UVLO) via an external divider, ensuring the controller starts only when input voltage is stable. Tie the Power Good output to a system supervisor or enable pin of downstream regulators for safe power sequencing. Phase Control allows synchronization of switching edges in dense layouts to reduce input ripple, though the SC2602STRT doesn’t support external clock sync—so use it only for relative phase alignment in multi-phase designs. Avoid floating these pins: pull Enable high with a resistor if not used, and filter Power Good with a small capacitor to prevent false triggering during load transients.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
SC2602STRT CAD Models
Semtech Corporation SC2602STRT PCB symbols & footprints
productDetail
