ADC 6021 Specifiche Scaricare il pdf (Pagina 54)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

9.6.10.1 Electrical Characteristics V2P85S

Parameter Description Test Conditions Min Typ Max Unit

V2P85S_VIN Input voltage 2.7 4.5 V

Cin At V2P85S_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

V2P85S Output Voltage IOUT= Imax 1.24/1.35±2% V

F_BUCK/BOOST Frequency of

operation

3 MHz

Transient load current prole 0-550mA 250 ns

Transient droop

0-550mA 116 mV

Transient overshoot

550-0mA 116 mV

Ton Turn on time 2 ms

Rpd Discharge impedance V2P85S .. 0V 20 Ω

IQ_OFF Quiescent current in

off mode

50 μA

Normal Mode – Synchronous rectication (PWM)

Maximum Output Current

(Imax)

550 mA

ILIMIT Current limitation Cycle by cycle 850 mA

Efciency at VSYS = 3.7V &

Tamb=60°C with proposed

external components and

PCB layout

See Figure 21

Sleep Mode – Pulse skipping (PSK)

Efciency at VSYS = 3.7V &

Tamb=60°C with proposed

external components and

PCB layout

See Figure 21

Notes:

1. IncludingDCaccuracy,rippleandloadregulation

2. IncludingDCaccuracy,rippleandloadregulation

3. RDSONmeansurementonATE

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