Overview
The SC1109 was designed for the latest high speed motherboards. It combines a synchronous voltage mode controller (switching section) with two low-dropout linear regulator controllers. The voltage mode controller provides the power supply for the system AGTL bus. The Dual linear controllers power the chip set and clock circuitry.
Packaging
- SOIC-16
Order Codes
- SC1109ACSTR: Package Minimum Tape & Reel Only
- SC1109ACSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
PB Free/ROHS
Learn More →Features
- Dual linear controllers
- LDOs track input voltage within 200 mV (function of the MOSFETs used) until regulation
- Integrated drivers
- Power-good signal (SC1109A, SC1109B)
- Soft start
- Lossless current sense
- Programmable over-current limit (SC1109C)
- Fixed frequency 200 kHz (SC1109A, SC1109C)
- Fixed frequency 500 kHz (SC1109B)
- SO-16 package
| Documents | Release Date | Type |  |
|---|---|---|---|
| SC1109 Datasheet | 2019-05-31 | | |
Applications
- Pentium® III Motherboards
- Triple power supplies
Inventory
| Product | Country | Distributor | Qty | Buy |
|---|
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