CROSS-REFERENCE ALTERNATIVE
COS3525AP is a Chinese-manufactured PWM Controller from COSINE (科山芯创) that cross-references to SG3525AP, and also to KA3525A, UC1525A.
It is a SOP16 device positioned as a domestic-supply option against the imported: shorter lead times, no allocation risk and a stable price for volume production. Because the parts are not pin-identical in every case, the engineering checklist below lists what to verify before you commit.
Cross-reference · Before you substitute · Related parts · FAQ · Request a quote
COS3525AP — PWM Controller, alternative to SG3525AP
COS3525AP is supplied by Shenzhen Jingteng Electronics (JTDZ Tech) as a domestically sourced option for SG3525AP, KA3525A (UC3525A), UC1525A (UC2525A). Imported parts in this class are frequently subject to allocation, long lead times and steep price swings. A Chinese-manufactured equivalent removes that exposure: the parts are production-validated in industrial, consumer and automotive designs and ship from stock on a short lead time.
Cross-reference chart — which imported parts does COS3525AP replace?
Every imported part number that COS3525AP is published as a cross-reference alternative to, per the COSINE (科山芯创) 2025 selection table:
| imported part number | brand | Replaced by (this part) |
|---|---|---|
| SG3525AP | — | COS3525AP |
| KA3525A | UC3525A | COS3525AP |
| UC1525A | UC2525A | COS3525AP |
Cross-reference means functional equivalence in the same application role. It is not a blanket claim of pin-for-pin identity — confirm package, pinout and the parameters listed below before you release a design change.
Device information
| Part number | COS3525AP |
| Manufacturer | COSINE (科山芯创) |
| Device class | PWM Controller |
| Package | SOP16 |
| Pin Count | 16 |
| Verified and new, traceable date code | |
| Stock | In stock, ships within 24 hours |
| Description | PWM Controller, SOP16 package. |
What to verify before substituting COS3525AP
These are the parameters that decide whether a cross-reference works in practice. Run through the list against the datasheet before releasing a change:
- Supported topologies and the oscillator/timing network the used — the R/C values set your frequency
- Maximum duty cycle and current-mode vs voltage-mode control
- Reference voltage accuracy and the feedback divider it feeds
- Start-up current and UVLO thresholds, which decide the start-up resistor value
- Gate-drive output current and whether an external driver is needed for your MOSFET
- Current-sense comparator threshold and blanking time
- Package and pinout
Typical applications
- Offline and DC-DC switch-mode power supplies
- Flyback, forward and push-pull topologies
- Battery chargers and adapters
- LED drivers and ballasts
- Inverters and UPS stages
- Industrial power conversion
Related COSINE parts and alternatives
Other {BRAND} parts in the same device family or the same device class — useful when you are cross-referencing a whole BOM rather than a single line item.
| COSINE part | Package | Cross-references to | Relation |
|---|---|---|---|
| COS3525ADW | WSOP16 | SG3525ADW | Same series |
| COS3842BD | SOP8 | UC3842, ST3842 | PWM Controller |
Prefer the imported? We also stock SG3525ANG — compare price, lead time and availability before you decide.
Frequently asked questions
What does COS3525AP replace?
According to the COSINE (科山芯创) 2025 cross-reference table, COS3525AP is published as an alternative to SG3525AP, KA3525A (UC3525A), UC1525A (UC2525A).
Is COS3525AP a pin-to-pin drop-in for SG3525AP?
Cross-reference means the part is intended for the same application role; it is not a blanket guarantee of pin-for-pin identity. Check package, pinout and the parameters listed under “What to verify” above, or send us your BOM and we will confirm before you commit.
Can you supply the SG3525AP as well?
Yes. We source both the imported and the Chinese-manufactured alternative, so you can compare price, lead time and availability on the same quote.
What is the MOQ and lead time for COS3525AP?
MOQ 1 pc. COS3525AP is held in stock and ships within 24 hours; quotes are returned within 2 business hours. We ship worldwide including India, Vietnam and the Middle East.
Request a quote for COS3525AP
Send us the part number and target quantity — we reply within 2 business hours with price, stock and a cross-reference confirmation.
Request a quote More Power Management Chips
Genuine original parts guaranteed — traceable lot & date code, X-ray / visual inspection and third-party test supported before shipment.
COS3525AP-SG3525AP-ALTERNATIVE-COSINE-PWM-CONTROLLER — COSINE to SG3525AP
The COS3525AP-SG3525AP-ALTERNATIVE-COSINE-PWM-CONTROLLER is listed by Jingteng Electronics as a COSINE power-management IC in the Power Management Chips category. We supply it as a genuine, original part sourced through verified channels, suitable for buyers who need reliable, fast-turn component sourcing.
Typical Applications
As a power-management IC, this component is commonly designed into equipment that relies on Power Management Chips. Power management ICs regulate, convert and distribute voltage and current across a system. Typical uses include DC-DC conversion, LDO regulation, battery charging, load switching and power sequencing in industrial controls, telecom equipment, consumer electronics and embedded designs.
Authenticity & Sourcing
Jingteng supplies COSINE COS3525AP-SG3525AP-ALTERNATIVE-COSINE-PWM-CONTROLLER as genuine and original stock. COSINE is a third-party trademark referenced here only to identify the component; Jingteng is an independent distributor and does not act as an agent of the component manufacturer.
Request a Quote for COS3525AP-SG3525AP-ALTERNATIVE-COSINE-PWM-CONTROLLER
Need pricing or availability for COS3525AP-SG3525AP-ALTERNATIVE-COSINE-PWM-CONTROLLER? Send the part number and your target quantity and our team replies within 2 business hours with a quote.
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