Micrel, Inc.
MIC2569
Pin Description
Pin Number
1
2
3
4
5
Pin Name
GND
NIC
3.3VIN
5VIN
3.3VIN
Pin Function
Ground.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
3V Supply input. Internal chip power is drawn from this supply.
5V Supply input.
3V Supply input.
Note: both 3.3VIN inputs must be powered to insure rated current and R
ON
is
met.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
Control Pins
7
C1
C2
0
0
8
C2
0
0
1
1
9
C0
1
1
10
11
12
13
14
15
16
FAULT/
NIC
VPP2
VCC
NIC
VPP1
C1
0
0
1
1
0
0
1
1
C0
0
1
0
1
0
1
0
1
VCC
3.3 V
3.3 V
Hi-Z
Hi-Z
3.3 V
3.3V
3.3V
GND
Outputs
VPP1
3.3 V
5.0 V
Hi-Z
GND
GND
5V
GND
GND
VPP2
3.3 V
5.0 V
Hi-Z
Hi-Z
5.0 V
GND
GND
GND
6
NIC
FAULT/ indicates the occurrence of a fault. FAULT/ is an open drain LOW true
output and goes low when any supply output is in current limit or if a thermal fault
occurs.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
VPP2 output to CableCARD™ card.
VCC (3V main supply) output to CableCARD™ card. Both output pins should be
connected together.
No internal connection. A voltage or signal applied to this pin will have no effect
on device operation.
VPP1 output to CableCARD™ card.
September 2007
3
M9999-092507-C
(408) 944-0800
MIC [ MIC GROUP RECTIFIERS ]
