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Fairchild Semiconductor FAN5646UC01X

IC LED DRVR LIN PWM 20MA 4WLCSP

Answer first: this page is a purchasing reference for the exact part number FAN5646UC01X from Fairchild Semiconductor. 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: Fairchild Semiconductor Part number: FAN5646UC01X Package: 4-UFBGA, WLCSP RFQ verification required

Key Parameters

Part NumberFAN5646UC01X
ManufacturerFairchild Semiconductor
CategoryLED Drivers
package4-UFBGA, WLCSP
seriesTinyWire™
packagingBulk
product statusObsolete
param 1Linear
param 2-
param 3Yes
param 41
param 52.7V
param 65.5V
param 7-
param 820mA
param 9-
param 10PWM
param 11-
param 12-40°C ~ 85°C (TA)
param 13-
param 14-
param 15Surface Mount
param 164-WLCSP (0.82x0.82)

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

How to Verify FAN5646UC01X 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 FAN5646UC01X, 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.