MIC2569
CableCARD™ Power Switch
General Description
MIC2569 is designed to supply power to OpenCable™
systems and CableCARD™ hosts. These CableCARDs
are also known as Point of Distribution (POD) cards.
MIC2569 supports both Single and Multiple stream cards
through a simple to control parallel interface. All voltage
switching is soft-start at turn-on, and break-before-make
when changing between different voltage supplies.
Built in current limiting protects all V
CC
and V
PP
output lines
of the host system from card faults and accidental short
circuits. MIC2569 provides a FAULT/ signal to indicate an
over-current or fault condition exists and is equipped with
internal thermal monitoring circuitry to protect the device
itself in the event of a sustained over-current condition.
MIC2569 is offered in a space saving 16 pin QSOP
packaging.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
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110 mΩ maximum V
CC
on resistance
400 mΩ maximum V
PP
on resistance
3.0V to 3.6V for the 3.3V
IN
operating range
3.0V to 5.5V for the 5V
IN
operating range
1.3A minimum V
CC
current limit
150mA minimum V
PP
current limit (150mA each)
Compact 16-pin QSOP packaging
Operating temperatures from –40°C to +85°C
Low quiescent current
Soft start turn-on
Break-before-make voltage switching
Short-circuit protection with thermal shutdown
Input under voltage lock-out (UVLO)
ESD protection
No external components required
Applications
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Satellite / Cable / DVR / Television
set top boxes
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Video recorders
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Game consoles
___________________________________________________________________________________________________________
Typical Application
OpenCable Power Switch
CableCARD is a trademark of CableLabs, Inc.
OpenCable is a trademark of Cable Television Laboratories, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
September 2007
M9999-092507-C
(408) 944-0800