L9396 datasheet(31/109 Pages) STMICROELECTRONICS

31 / 109 page

DS12539 Rev 10

31/109

L9396

Power supply

109

PSRR

Power supply

rejection ratio

VPREREG = 6.5 V,

Vnoise = 1 Vpp

fnoise = 20 kHz,

CVCORE = 22 µF

LVCORE = 22 µH

Linear configuration

VCORE

Output voltage

Nominal 0.8 V to

5 V Excluding

external voltage

divider accuracy

0.78

5.125

IVCORE_HI

Output load current

high

RSH_HI_CURR

0.07

0.75

IVCORE_LO

Output load current

low

RSH_LO_CURR

0.07

0.25

CVCORE

Output capacitor

µF

RCVCORE

Output capacitor

ESR

0.01

0.1

Ω

CVCORE_EMI

Drain output

stability capacitor

0.1

µF

CFET

External FET gate

charge

VCOREFDBK

Feedback voltage

Excluding external

voltage divider

accuracy

0.8 -2.5%

0.8 + 2.5%

dVSR_ac

Line Transient

Response

All line, load;

dt = 10 µs

-5%

dVLR_ac

Load Transient

Response

All line, load;

dt = 10 µs

-5%

GCORE_pd

Gate internal pull

down

Not tested,

guaranteed by

design.

100

kΩ

GCORE_Vclamp

Gate voltage clamp -

ICOREL_HI Ilim

High Current

limitation

0.8

1.6

ICOREL_HI_OC

High Overcurrent

threshold

0.8

1.6

ICOREL_LO Ilim

Low Current

limitation

0.26

0.48

ICOREL_LO_OC

Low Overcurrent

threshold

0.26

0.48

Table 12. VCORE regulator electrical characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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