TPS65233-1 Series

LNB Voltage Regulator with 1MHz,I2C Interface Power Management IC (PMIC)

Catalog

LNB Voltage Regulator with 1MHz,I2C Interface Power Management IC (PMIC)

Part	Supplied Contents	Voltage - Input [Max]	Voltage - Input [Min]	Utilized IC / Part	Main Purpose	Frequency - Switching	Regulator Topology	Board Type	Outputs and Type	Outputs and Type	Number of Outputs	Applications	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output	Supplier Device Package	Package / Case
Texas Instruments TPS65233EVM	Board(s)	16 V	4.5 V	TPS65233	DC/DC Step Up	500 kHz	Boost	Fully Populated	Non-Isolated	1
Texas Instruments TPS65233-1RTET		20 V	4.5 V								1	Converter Satellite Set-Top Box Designs	Surface Mount	85 °C	-40 °C	13.4 V 18.6 V	16-WQFN (3x3)	16-WFQFN Exposed Pad
Texas Instruments TPS65233RTET		20 V	4.5 V								1	Converter Satellite Set-Top Box Designs	Surface Mount	85 °C	-40 °C	13.4 V 18.6 V	16-WQFN (3x3)	16-WFQFN Exposed Pad
Texas Instruments TPS65233-1RTER		20 V	4.5 V								1	Converter Satellite Set-Top Box Designs	Surface Mount	85 °C	-40 °C	13.4 V 18.6 V	16-WQFN (3x3)	16-WFQFN Exposed Pad

Catalog

LNB Voltage Regulator with 1MHz,I2C Interface Power Management IC (PMIC)

Key Features

• Complete Integration Solution for LNB and I2CDiSEqC 1.x CompatibleSupports 5-V and 12-V Power BusUp to 1000-mA Accurate Output Current LimitAdjustable by External Resistor and I2CBoost Converter With LowRdsonInternal Power SwitchDedicated Enable Pin forNon-I2C ApplicationLow Noise, Low Drop Output WithPush-Pull Output StageBuilt-In Accurate 22-kHz Tone Generatoror External PinAdjustable Soft-Start and 13-V/18-V VoltageTransition TimeCompliant with main satellite receiver systemsSpecificationsLNB Short Circuit Dynamic PprotectionDiagnostics for Output Voltage Level,Input Supply UVLO, and DiSEqC Tone OutputCable Disconnect DiagnosticAvailable in a 16-Pin QFN 3-mm × 3-mm (RTE) PackageComplete Integration Solution for LNB and I2CDiSEqC 1.x CompatibleSupports 5-V and 12-V Power BusUp to 1000-mA Accurate Output Current LimitAdjustable by External Resistor and I2CBoost Converter With LowRdsonInternal Power SwitchDedicated Enable Pin forNon-I2C ApplicationLow Noise, Low Drop Output WithPush-Pull Output StageBuilt-In Accurate 22-kHz Tone Generatoror External PinAdjustable Soft-Start and 13-V/18-V VoltageTransition TimeCompliant with main satellite receiver systemsSpecificationsLNB Short Circuit Dynamic PprotectionDiagnostics for Output Voltage Level,Input Supply UVLO, and DiSEqC Tone OutputCable Disconnect DiagnosticAvailable in a 16-Pin QFN 3-mm × 3-mm (RTE) Package

Description

Designed for analog and digital satellite receivers, the TPS65233-1 is a monolithic voltage regulator with I2C interface, specifically to provide the 13-V/18-V power supply and the 22-kHz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. It offers a complete solution with very low component count, low power dissipation together with simple design and I2C standard interfacing. TPS65233-1 features high power efficiency. The boost converter integrates a 120-mΩ power MOSFET running at 1-MHz switching frequency. Drop out voltage at the linear regulator is 0.8 V to minimize power loss. TPS65233-1 provides multiple ways to generate the 22-kHz signal. Integrated linear regulator with push-pull output stage generates clean 22-kHz tone signal superimposed at the output even at zero loading. Current limit of linear regulator can be programmed by external resistor with ±10% accuracy. Full range of diagnostic read by I2C is available for system monitoring. The part is available in a 16-pin WQFN 3.00-mm × 3.00-mm (RTE) package. Designed for analog and digital satellite receivers, the TPS65233-1 is a monolithic voltage regulator with I2C interface, specifically to provide the 13-V/18-V power supply and the 22-kHz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. It offers a complete solution with very low component count, low power dissipation together with simple design and I2C standard interfacing. TPS65233-1 features high power efficiency. The boost converter integrates a 120-mΩ power MOSFET running at 1-MHz switching frequency. Drop out voltage at the linear regulator is 0.8 V to minimize power loss. TPS65233-1 provides multiple ways to generate the 22-kHz signal. Integrated linear regulator with push-pull output stage generates clean 22-kHz tone signal superimposed at the output even at zero loading. Current limit of linear regulator can be programmed by external resistor with ±10% accuracy. Full range of diagnostic read by I2C is available for system monitoring. The part is available in a 16-pin WQFN 3.00-mm × 3.00-mm (RTE) package.