ZLDO300 Datasheet | Zetex Semiconductors

3.0 VOLT ULTRA LOW DROPOUT REGULATOR ISSUE 2 - JUNE 1997 DEVICE DESCRIPTION The ZLDO Series low dropout linear regulators operate with an exceptionally low dropout voltage, typically only 30m V with a load current of 100m A. The regulator series Features output voltages in the range 2.85 to 12 volts, this device provides an output voltage of 3.0 volts. The ZLDO300 consumes a typical quiescent current of only 1m A at its maximum rated output current of 300m A. A battery low flag is available to indicate potential power fail situations. If the input voltage falls to within 200m V of the regulated output voltage then the error output pulls low. The device also Features an active high disable control. Once disabled the ZLDO quiescent current falls to typically 11µA. The ZLDO devices are packaged in Zetex SM8 8 pin small outline surface mount package, ideal for applications where space saving is important. The device low dropout voltage, low quiescent current and small size make it .. ideal for low power and battery powered applications. Battery powered circuits can make particular use of the low battery flag and shutdown Features . Features - - - - - - - - - - - - - - - - Very low dropout voltage 6m V dropout at 10m A output 30m V dropout at 100m A output 100m V dropout at 300m A output 3.0 volt fixed output Other voltages available Low quiescent current 1m A quiescent (typ) at 300m A output Low battery flag Shutdown control Surface mount package APPLICATIONS Battery powered devices Portable instruments Portable munications Laptop/Palmtop puters Electronic organisers Low Battery Flag Vin LOW BATTERY PARATOR THERMAL SHUTDOWN Vo Shutdown Control SHUTDOWN BIAS CIRCUIT OUTPUT DRIVE Cs BANDGAP REFERENCE Shaping Gnd...