CMPWR101 View Datasheet(PDF) - ON Semiconductor
Part Name
Description
MFG CO.
'CMPWR101' PDF : 7 Pages View PDF
CMPWR101
250 mA SmartORt Regulator
with VAUX Switch
Product Description
The ON Semiconductor’s SmartORt CMPWR101 is a low dropout
regulator that delivers up to 250 mA of load current at a fixed 3.3 V
output. An internal threshold level (typically 4.1 V) is used to prevent
the regulator from being operated below dropout voltage. The device
continuously monitors the input supply and will automatically disable
the regulator when VCC falls below the threshold level. When the
regulator is disabled, a low impedance, fully integrated switch is
enabled which allows the output to be directly powered from an
auxiliary 3.3 V supply.
When VCC is restored to a level above the select threshold, the low
impedance switch is disabled and the regulator is once again enabled.
All the necessary control circuitry needed to provide a smooth and
automatic transition between the supplies has been incorporated. This
allows VCC to be dynamically switched without loss of output voltage.
An output logic signal, DRIVE, is active LOW whenever the
internal regulator is disabled.
The CMPWR101 is housed in a 8−pin SOIC package and is
available with RoHS compliant lead−free finishing.
Features
• Automatic Detection of VCC Input Supply
• Glitch−Free Output During Supply Transitions
• Built−In Hysteresis During Supply Selection
• 250 mA Output Maximum Load Current
• Fully Integrated VAUX Switch
• Overload Current Protection
• Short Circuit Current Protection
• Operates from Either VCC or VAUX
• 8−Pin SOIC Package
• These Devices are Pb−Free and are RoHS Compliant
Applications
• PCI Adapter Cards
• Network Interface Cards (NICs)
• Dual Power Systems
• Systems with Standby Capabilities
http://onsemi.com
SIOC 8
R SUFFIX
CASE 751BD
MARKING DIAGRAM
CMPWR 101R
CMPWR 101R = CMPWR101R
ORDERING INFORMATION
Device
CMPWR101R
Package
Shipping†
SOIC 2500/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2011
1
April, 2011 − Rev. 4
Publication Order Number:
CMPWR101/D
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