Micrel
MIC2589/MIC2595
W
Current Flow
to the Load
Vias to bottom layer
Return/Ground plane
(VDD)
MIC2589-2BM
1
2
3
4
5
6
7
/PWRGD1
VDD 14
**CTIMER
PGTIMER
UV
/PWRGD3 13
**R1
12
/PWRGD2
**R2
**R3
OV
11
DRAIN
CFILTER
CNLD
VEE
10
9
GATE
**CFILTER
SENSE
C1
0.47uF
**CNLD
Via to bottom layer
Return/Ground plane
(VDD)
N/C
8
D1
SMAT70A
Via to bottom layer
Return/Ground plane
(VDD)
Current Flow
from the Load
CLOAD2
0.1uF
**CLOAD1
**CGATE
**RGATE
W
W
Via to the
ground plane
*SENSE RESISTOR
(WSR-2 or
*POWER MOSFET
(TO-263)
WSL2512)
- DRAWING IS NOT TO SCALE-
*See Table 1 for part numbers and vendors
**Component values application specific, determined by user
Trace width (W) guidelines and additional information given in "PCB Layout
Recommendations" section of the datasheet
Figure 10. Recommended PCB Layout for Sense Resistor, Power MOSFET, Overvoltage/Undervoltage
Resistive Divider Network, and Timer Capacitors
26
M9999-120505
(408) 955-1690
December 2005
MICREL [ MICREL SEMICONDUCTOR ]
