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The AX6615 is a 3A ultra low dropout linear regulator. This product is specifically designed to provide well supply voltage for front-side-bus termination on motherboards and NB applications. The IC needs two supply voltages, a control voltage for the circuitry and a main supply voltage for power conversion, to reduce power dissipation and provide extremely low dropout. The AX6615 integrates many functions. A Power-On-Reset (POR) circuit monitors both supply voltages to prevent wrong operations. A thermal shutdown and current limit functions protect the device against thermal and current over-loads. A POK indicates the output status with time delay which is set internally. It can control other converter for power sequence. The AX6615 can be enabled by other power system. Pulling and holding the EN pin below 0.3V shuts off the output.
The AX6615 is available in SOP-8L-EP and TDFN-10L packages which features small size as an Exposed Pad to reduce the junction-to-case resistance, being applicable in 2~3W applications.


Package Type SOP8-EP,TDFN-10
Vcntl range 3 to 5.5V
Input range 1.2 to 3.65V
Output Current (Max) 3A
Output Voltage Adj(Vfb=0.8V)
Dropout 0.23V(Typ, Vout=1.2V, Iout=3A)
Quiescent Current 1mA
Accuracy ±1.5%
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