SC1109
Product is not recommended for new design.
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.
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
- Pentium® III Motherboards
- Triple power supplies
Applications
Packaging
- SOIC-16
Order Codes
- SC1109ACSTR: Package Minimum Tape & Reel Only
- SC1109ACSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
Pb(Lead)-Free/RoHS-Green Info
Base Part Number (1)
SC1109
Part Description
SYNCHRONOUS PWM CONTROLLER WITH DUAL LOW-DROPOUT REGULATOR CONTROLLERS
# of leads
16
Package Type
SOIC
Pb-Free (2)
YES
Reflow Temp °C (3)
260
Lead or Ball Finish
MATTE Sn
MSL Rating
1
REACH SVH C(233) EC1907/2006 (18)
YES Download Report
JIG 101 A & B (12)
YES
YES Download Report
RoHS 2/3 Amend 2015/863 (7)
YES Download Report
WEEE 2012/19/EU (19)
YES
China RoHS 2 GB/T 26572-2011
YES Download Report
Halogen Free / Low IEC 61249-2-21/JS709C (20)
YES Download Report
Proposition 65 (21)
YES Download Report
Packaging Material 94/62/EC (17)
YES Download Report
RoHS Compliant by Exception (8)
NO
Whisker Testing (10)
Thermal Cycling Whisker Test
(-40°C to +85°C / 4000 cycles)
(-40°C to +85°C / 4000 cycles)
YES
Ambient Temperature Storage, Whisker Test
(50°C, 4000 Hrs)
(50°C, 4000 Hrs)
YES
60°C/90%RH 4000 Hrs, Whisker Test
YES
Declarations and Reports
IPC-1752-2
Datasheets & Documentation
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