
MYXPM6021*
Revision 1.1 - 10/21/14
*Advanced information. Subject to change without notice.
44
MYXPM6021*
Form #: CSI-D-685 Document 011
9.6.5 DC/DC Buck Regulator V1P8_A
Thishighefciencybuckregulatoristhesupplyforthe1.8VI/Os,USB,V1P8U,V1P8SandV1P8SX.Themaximumoutput
currentofthe1P8Abuckregulatoris1627mA
9.6.5.1 Power States
Figure 16: Buck V1P8A Power Rail Block Diagram
9.6.5.2 Electrical Characteristics V1P8A
Table 17: Electrical Parameter for BUCK_V1P8A
Parameter Description Test Conditions Min Typ Max Unit
V1P8A_VIN Input voltage 2.7 4.5 V
Cin At V1P8A_IN 4.7 μF
Cout 2 x 22 μF
ESR of output capacitor 6 @ 22μF mΩ
ESL of output capacitor 1.6 @ 3MHz nH
L_BUCK Inductor value -20% 0.47 +20% μH
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