CMPWR330(2011) Ver la hoja de datos (PDF) - ON Semiconductor
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CMPWR330 Datasheet PDF : 10 Pages
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CMPWR330
400 mA SmartORt Regulator
with VAUX Switch
Product Description
The CMPWR330 is a dual input regulator with a fully integrated
VAUX switch capable of delivering up to 400 mA continuously at
3.3 V. The input is taken from three independent voltage sources on
a prioritized basis. Power is always taken in priority using the order of
VCC, VSBY, and VAUX.
When VCC, (5 V) or VSBY is present, the device automatically
enables the regulator and produces a stable 3.3 V output at VOUT.
When only VAUX (3.3 V) is present, the device provides a low
impedance direct connection (0.25 W TYP.) from VAUX to VOUT.
All the necessary control circuitry needed to provide a smooth and
automatic transition between all three supplies has been incorporated.
This allows the VCC input supply to be dynamically switched without
loss of output voltage.
The CMPWR330 is housed in an 8−pin SOIC package and is
available with RoHS compliant lead−free finishing.
Features
• Continuous 3.3 V Output from Three Inputs
• Complete Power Management Solution
• VCC, VSBY Regulator Supplies 400 mA Output
• Built−In Hysteresis when Selecting Input Supplies
• Integrated Switch Has Very Low RDS(ON) Resistance of 0.25 W
(TYP)
• Foldback Current Limiting Protection
• Thermal Overload Shutdown Protection
• 8−Pin Power SOIC Package
• These Devices are Pb−Free and are RoHS Compliant
Applications
• PCI Adapter Cards with Wake−On−LAN
• Network Interface Cards (NICs)
• Multiple Power Systems
• Systems with Standby Capabilities
http://onsemi.com
SIOC 8
SF SUFFIX
CASE 751BD
MARKING DIAGRAM
CMPWR330SF
CMPWR330SF = Specific Device Code
ORDERING INFORMATION
Device
CMPWR330SF
Package
Power SOIC
(Pb−Free)
Shipping†
750/Tape & Reel
†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:
CMPWR330/D
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