MIC5162_10 Datasheet, PDF (2/24 Pages) Micrel Semiconductor – Dual Regulator Controller for DDR3 GDDR3/4/5 Memory and High-Speed Bus Termination

Micrel, Inc.
MIC5162
Ordering Information
Part Number
Temperature Range
Package
MIC5162YMM
–40° to +125°C
10-Pin MSOP
Note: MSOP is a Green RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Lead Finish
Pb-Free
Pin Configuration
10-Pin MSOP (MM)
Pin Description
Pin Number
1
2
Pin Name
VCC
EN
3
VDDQ
4
VREF
5
GND
6
FB
7
COMP
8
LD
9
HD
10
NC
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 enable pin can be tied directly to VDDQ or VCC for functionality. Do not float the
enable 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 to the internal error amplifier.
Compensation (Output): Connect a capacitor and resistor from COMP pin to
feedback pin for compensation of the internal control loop.
Low-side drive: Connects to the Gate of the external low-side MOSFET.
High-side drive: Connects to the Gate of the external high-side MOSFET.
Not internally connected.
March 2010
2
M9999-033110