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Texas Instruments UC3525AQ

IC REG CTRLR MULT TOP 20PLCC

Answer first: this page is a purchasing reference for the exact part number UC3525AQ from Texas Instruments. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.

Manufacturer: Texas Instruments Part number: UC3525AQ Package: 20-LCC (J-Lead) RFQ verification required

Key Parameters

Part NumberUC3525AQ
ManufacturerTexas Instruments
CategoryDC DC Switching Controllers
package20-LCC (J-Lead)
series-
packagingTube
product statusObsolete
param 1Transistor Driver
param 2Step-Up, Step-Down, Step-Up/Step-Down
param 3Positive
param 4Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
param 52
param 61
param 78V ~ 35V
param 8100Hz ~ 400kHz
param 949%
param 10Yes
param 11Yes
param 12-
param 13Enable, Frequency Control, Soft Start
param 140°C ~ 70°C (TA)
param 15-
param 16-
param 17Surface Mount
param 1820-PLCC (9x9)

Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.

How to Verify UC3525AQ Before Ordering

Datasheet and parameter checks

  • Confirm the full manufacturer part number, not only a shortened search keyword.
  • Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
  • Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.

RFQ fields SENICO needs

  • Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
  • State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
  • Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.

For UC3525AQ, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.

We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.

Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.