SC486 Datasheet Complete DDR1/2/3 Memory Power Supply

Manufacturer: SEMTECH

Datasheet Details

Part number	SC486
Manufacturer	SEMTECH
File Size	420.63 KB
Description	Complete DDR1/2/3 Memory Power Supply
Download	SC486 Download (PDF)

The SC486 is a combination switching regulator and linear source/sink regulator intended for DDR1/2/3 memory systems.

The switching regulator is used to generate the supply voltage, VDDQ, for the memory system.

It is a pseudo-fixed frequency constant on-time controller designed for high efficiency, superior DC accuracy, and fast transient response.

Complete DDR1/2/3 Memory Power Supply POWER MANAGEMENT.

include cycle-by-cycle current limiting, digital soft-start, power good (all VDDQ only) and over-voltage and under-voltage protection (VDDQ and VTT). All 3 outputs (VDDQ, VTT and REF) are actively discharged when VDDQ is disabled, reducing external component count and cost. The SC486 is available in a 24 pin MLPQ 4mmx4mm Lead-free package. SC486 Features DDR1, DDR2 and DDR3 compatible Constant on-time controller for fast dynamic response on VDDQ Programmab.

Part Number	Description
SC480	Complete DDR1/2/3 Memory Power Supply
SC4806	Multiple Function Double Ended PWM Controller
SC4808A	High Performance Dual Ended PWM Controller
SC4808B	High Performance Dual Ended PWM Controller
SC4808B-1	High Performance Dual Ended PWM Controller
SC4808B-2	High Performance Dual Ended PWM Controller
SC4808C	High Performance Dual Ended PWM Controller
SC4809A	High Performance Current Mode PWM Controller
SC4809B	High Performance Current Mode PWM Controller
SC4809C	High Performance Current Mode PWM Controller