MIC5164 Datasheet, PDF (2/23 Pages) Micrel Semiconductor – Dual Regulator Controller for DDR3 GDDR3/4/5 Memory and High-Speed Bus Termination

Micrel, Inc.
Ordering Information
Part Number
Temperature Range
Package
MIC5164YMM
–40° to +125°C
10-Pin MSOP
Note: MSOP is a Green RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Pin Configuration
MIC5164
Lead Finish
Pb-Free
10-Pin MSOP (MM)
Pin Description
Pin Number
1
Pin Name
VCC
2
EN
3
VDDQ
4
VREF
5
GND
6
FB
7
COMP
8
LD
9
HD
10
PG
Pin Function
Bias Supply (Input): Apply 3V-6V to this input for internal bias to the controller.
Enable (Input): CMOS compatible input. Logic high = enable, logic low = shutdown. The EN pin can
be tied directly to VDDQ or VCC for functionality. Do not float the EN pin. Floating this pin causes the
enable to be in an undetermined state.
Input Supply Voltage.
Reference voltage equal to half of VDDQ. For internal use only.
Ground.
Feedback (Input): Input to the internal error amplifier.
Compensation (Output): Connect a capacitor and resistor from COMP pin to FB pin for
compensation of the internal control loop.
Low-side drive (Output): Connects to the Gate of the external low-side MOSFET.
High-side drive (Output): Connects to the Gate of the external high-side MOSFET.
Power Good (Output): Open drain output.
June 2010
2
M9999-061510