LNBH24 datasheet(13/30 Pages) STMICROELECTRONICS

13 / 30 page

LNBH24

Application circuit

13/30

Table 5.

Bill of material (valid for A and B sections except for C1, C2, C7, C8 and R1)

Component

Notes

R1, R4

1/4 W resistors. Refer to the typical application circuit for the relative values

R3, RSEL

1/8 W resistors. Refer to the typical application circuit for the relative values

25 V electrolytic capacitor, 100 µF or higher is suitable.

10µF, > 35 V electrolytic capacitor

C3, C5

100µF, > 25 V electrolytic capacitor, ESR in the 150 m

Ω to 350 mΩ range

C2, C4, C6, C7, C8, C10,

C11, C12, C13

>25 V ceramic capacitors. Refer to the typ. appl. circuit for the relative values

STPS130A or any similar schottky diode with VRRM > 25 V and IF(AV) higher than:

IF(AV) > IOUT_MAX x (VUP_MAX/VIN_MIN)

BAT43, 1N5818, or any schottky diode with IF(AV)>0.2A, VRRM > 25 V, VF<0.5 V

1N4007 or equivalent

1N5818 or equivalent schottky diode

22µH inductor with ISAT>IPEAK, where IPEAK is the boost converter peak current:

Ferrite bead, Panasonic-EXCELS A35, Murata-BL01RN1-A62, Taiyo-Yuden-

BKP1608HS600 or equivalent with similar or higher impedance and current rating

higher than 2A

220 µH-270 µH inductor with current rating higher than rated output current

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