MIC5204_02 Datasheet, PDF (1/8 Pages) Micrel Semiconductor – SCSI-II Active Terminator

MIC5204
MIC5204
SCSI-II Active Terminator
Final Information
Micrel
General Description
The MIC5204 is an active terminator designed to comply with
SCSI-II specifications. The MIC5204 is enabled by a CMOS
or TTL compatible logic signal. When disabled, power
consumption drops nearly to zero and the output goes into a
high impedance state. Key MIC5204 features include protec-
tion against reversed battery, current limiting, and over-
temperature shutdown.
Features
• ± 1% output voltage accuracy
• Guaranteed 500mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Zero off-mode current
• Logic-controlled electronic shutdown
• Available in SO-8 and SOT-223 packages
Applications
• SCSI-II active terminator
• Desktop, laptop, notebook, and palmtop computers
• Intelligent instrumentation
• Printers
• Disk drives
• Voltage reference
Ordering Information
Part Number Junction Temp. Range Package
MIC5204BM
MIC5204BS
–40°C to +125°C
–40°C to +125°C
SO-8
SOT-223
Typical Application
+5V
+
10µF
MIC5204
+
22µF
110Ω
110Ω
110Ω
SCSI Bus
18 to 27
Lines
110Ω
Pin Configuration
VOUT
VOUT
NC
GROUND
VIN
VIN
NC
ENABLE
MIC5204BM
Both V_IN and both V_OUT pins must be tied
together. ENABLE must be pulled high for
operation.
TAB IS GROUND
12 3
IN GND OUT
MIC5204-xxBS
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
February 1999
1
MIC5204