CMPWR101 Datasheet | onsemi

Description The ON Semiconductor’s Smart ORt CMPWR101 is a low dropout regulator that delivers up to 250 m A 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 Ro HS pliant lead- free finishing. Features - Automatic Detection of VCC Input Supply - Glitch- Free Output During Supply Transitions - Built- In Hysteresis During Supply Selection - 250 m A 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 Ro HS pliant Applications - PCI Adapter Cards - Network Interface Cards (NICs) - Dual Power Systems - Systems with Standby Capabilities http://onsemi. 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 ponents...