ADC 6021 Specifiche Scaricare il pdf (Pagina 42)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

9.6.4 DC/DC Buck Regulator V1P05S

ThishighefciencybuckregulatoristhesupplyfortheL2SRAMoftheSoC.

Themaximumoutputcurrentofthe1P05Sbuckregulatoris474mA.

Figure 14: Buck V1P05S Block Diagram

9.6.4.1 Electrical Characteristics

Table 16: Electrical Parameter for BUCK_V1P05S

Parameter Description Test Conditions Min Typ Max Unit

V1P05S_VIN Input Voltage 2.7 4.5 V

Cin At V1P05S_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

L_DCR Inductor resistance 48 mΩ

V1P05S Output voltage IOUT= Imax 1.05±2% V

F_BUCK Frequency of operation 3 MHz

Transient load current prole 0-740mA 200 ns

Transient droop

0-740mA 53 mV

Transient overshoot

740-0mA 53 mV

Ton Turn on time 2 ms

Rpd Discharge impedance Vout .. 0V 20 Ω

IQ_ON Quiescent Current in On

Mode

No load 50 μA

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 112 113

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ADC 6021 Specifiche Pagina 42