Overview
The TPS65233RTER, manufactured by Texas Instruments, is a monolithic voltage regulator designed specifically for analog and digital satellite receivers. It provides a complete integration solution for Low Noise Block (LNB) and I2C interfaces, making it ideal for powering LNB down-converters in antenna dishes or multi-switch boxes. This device offers high power efficiency, low component count, and simple design with I2C standard interfacing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 16-Pin QFN (RTE) | - |
| Operating Temperature Range | -40 to 85 | °C |
| Input Operating Voltage | 4.5 to 20 | V |
| Output Voltage | 13 V / 18 V | V |
| Output Current Limit | Up to 1000 mA | A |
| Tone Frequency | 20 to 24 kHz | kHz |
| Switching Frequency | 528 kHz | kHz |
| Junction Temperature Range | -40 to 125 | °C |
| Thermal Shutdown Trip Point | 160 °C | °C |
Key Features
- Complete Integration Solution for LNB and I2C
- DiSEqC 1.x Compatible
- Supports 5-V and 12-V Power Bus
- Up to 1000-mA Accurate Output Current Limit Adjustable by External Resistor and I2C
- Boost Converter With Low Rdson Internal Power Switch
- Dedicated Enable Pin for Non-I2C Application
- Low Noise, Low Drop Output With Push-Pull Output Stage
- Built-In Accurate 22-kHz Tone Generator or External Pin
- Adjustable Soft-Start and 13-V/18-V Voltage Transition Time
- LNB Short Circuit Dynamic Protection and Diagnostics for Output Voltage Level, Input Supply UVLO, and DiSEqC Tone Output
- Cable Disconnect Diagnostic
Applications
- Set Top Box Satellite Receiver
- TV Satellite Receiver
- PC Card Satellite Receiver
- Analog and Digital Satellite Receivers
- LNB Down-Converters in Antenna Dishes or Multi-Switch Boxes
Q & A
- What is the primary function of the TPS65233RTER?
The TPS65233RTER is a monolithic voltage regulator designed to provide the 13-V/18-V power supply and the 22-kHz tone signaling to the LNB down-converter in satellite receivers.
- What is the operating temperature range of the TPS65233RTER?
The operating temperature range is -40°C to 85°C.
- What is the maximum output current limit of the TPS65233RTER?
The maximum output current limit is up to 1000 mA, adjustable by an external resistor and I2C.
- Is the TPS65233RTER compatible with DiSEqC protocols?
- What is the switching frequency of the boost converter in the TPS65233RTER?
The switching frequency of the boost converter is 528 kHz.
- Does the TPS65233RTER have built-in protection features?
- How can the 22-kHz tone signal be generated in the TPS65233RTER?
The 22-kHz tone signal can be generated internally or through an external pin.
- What is the package type and size of the TPS65233RTER?
The device is available in a 16-pin QFN package with dimensions of 3-mm x 3-mm (RTE).
- Does the TPS65233RTER support non-I2C applications?
- What are the typical applications of the TPS65233RTER?
Typical applications include set top box satellite receivers, TV satellite receivers, and PC card satellite receivers.
