
MYXPM6021*
Revision 1.1 - 10/21/14
*Advanced information. Subject to change without notice.
48
MYXPM6021*
Form #: CSI-D-685 Document 011
Symbol Parameter Min Typ Max Unit Notes / Condition
PSRR Power supply rejection ratio 50 dB Noise = 0.1Vpp, 1-
10kHz, ½ Iout-DC
Vnoise Output Noise 50 100 μVRMS 10-100kHz, ½ Iout-DC
Table 21: Electrical Parameter for VREFDQ1/2
Symbol Parameter Min Typ Max Unit Notes / Condition
Input Requirement
Vin Main input voltage 1.80 V Supplied by V1P8A
Output Requirement
Vnom Nominal output voltage 0.6..1.2 V Via VREFDQ0/1_VSEL
register
Vtol Output voltage tolerance -5% +5%
Cout Output capacity 1 μF
Iout-DC Output load current 1 10 mA
IQSC Quiescent current
(operational)
10 μA Iout-DC = 0mA
IQSC Quiescent current
(sleep)
2 μA Iout-DC = 0mA
PSRR Power supply rejection ratio 50 dB Noise = 0.1Vpp, 1-
10kHz, ½ Iout-DC
Vnoise Output Noise 50 100 μVRMS 10-100kHz, ½ Iout-DC
9.6.6 DC/DC Buck Regulator VDDQ
Thishighefciencybuckregulatoristhesupplyforanytype(1.5V/1.35V/1.25V)ofDDR3memory.Themaximumoutput
currentofVDDQbuckregulatoris2800mA.
Table20:ElectricalParameterforV1P2A(continued)
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