LNBH23 Overview
Key Specifications
Package: QFN EP
Mount Type: Surface Mount
Pins: 32
Operating Voltage: 12 V
Description
Intended for analog and digital satellite receivers/sat-TV, sat-PC cards, the LNBH23 is a monolithic voltage regulator and interface IC, assembled in PowerSSO-24 ePAD and QFN32 (5 x 5 mm.) ePAD, specifically designed to provide the 13/18 V power supply and the 22 kHz tone signalling to the LNB down-converter in the antenna dish or to the multi-switch box. In this application field, it offers a complete solution with extremely low component count, low power dissipation together with simple design and I²C standard interfacing.
Key Features
- Complete interface between LNB and I²C bus
- Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% @ 0.75 A), with integrated NMOS
- Selectable output current limit by external resistor
- Compliant with main satellite receiver systems specifications
- New accurate built-in 22 kHz tone generator suits widely accepted standards (patent pending)
