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LNBH26S Datasheet(PDF) 13 Page - STMicroelectronics

Part # LNBH26S
Description  Dual LNBS supply and control I2C with step-up and IC interface
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH26S Datasheet(HTML) 13 Page - STMicroelectronics

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Component
Notes
D2
1N4001-07, S1A-S1M, or any similar general purpose rectifier
D3
BAT54, BAT43, 1N5818, or any low power Schottky diode with IF(AV) > 0.2 A, VRRM > 25 V, VF < 0.5 V. To
be placed as close as possible to VOUT pin
L1
With COMP=0, use 10 µH inductor with ISAT > IPEAK where IPEAK is the boost converter peak current
or
with COMP=1 and C2 = 22 µF, use 6.8 µH inductor with ISAT > IPEAK where IPEAK is the boost converter
peak current
L2
220 µH - 270 µH inductor as per DiSEqC 2.x specification
TR1
MMBTA92, 2STR2160 or any low power PNP with IC > 250 mA, VCE > 30 V, can be used
Also any small power PMOS with ID > 250 mA, RDS(on) < 0.5 W, VDS > 20 V, can be used
LNBH26S
Typical application circuits
DS8975 - Rev 5
page 13/35



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