XRP6274 Datasheet, PDF (3/11 Pages) Exar Corporation – 2A Ultra Low Dropout Voltage Regulator

XRP6274
2A Ultra Low Dropout Voltage Regulator
Parameter
Enable Pin Specifications
Enable Threshold Voltage
EN Sink Current
Maximum Allowable EN Sink
Current
EN Source Current
Min.
0.43
Typ.
Max. Units
Conditions
0.55
2.5
15
0.67
V
• VEN rising
uA
EN<VIN
uA
VIN<EN<VIN+0.5V
100uA
uA
EN=VIN+0.5V (when using internal clamp)
10
uA
EN=0V
Note 1: The XRP6274 is rated over a junction temperature range TJ of -40°C to +125°C. For a given set of operating conditions,
TJ has to be calculated in order to make sure it does not exceed maximum specification. Use equation TJ= TA + (PD.Ï´JA) where
Ï´JA is the package thermal impedance, TA is the ambient temperature and PD is power dissipation. PD is calculated from PD=(VIN-
VOUT).IOUT
Note 2: Dropout voltage is defined as the input to output voltage differential (VIN - VOUT) where the input voltage is low
enough to cause the output voltage to drop 2% from the nominal value.
BLOCK DIAGRAM
Fig. 2: XRP6274 Block Diagram
© 2015 Exar Corporation
3/11
Rev. 2.0.0