| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 20 Pin |
| Case/Package | WQFN-20 |
| Number of Outputs | 1 Output |
| Output Voltage | 11V ~ 20V |
| Output Current | 1 A |
| Quiescent Current | 5 mA |
| Switching Frequency | 500kHz, 1MHz |
| Switching Current | 3 A |
| Input Voltage (Max) | 20 V |
| Input Voltage (Min) | 4.5 V |
| Output Current (Max) | 1 A |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 4.5V ~ 20V |
| Input Voltage | 20 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 85℃ |
Designed for analog and digital satellite receivers, the TPS65235-1 is a monolithic voltage regulator with I2C interface; specifically to provide the 13-V to 18-V power supply and the 22-kHz tone signal to the LNB down converter in the antenna dish or to the multi-switch box. It offers a complete solution with minimum component count, low power dissipation together with simple design and I2C standard interface.
●TPS65235-1 features high power efficiency. The boost converter integrates a 140-mΩ power MOSFET running at 1 MHz or 500 kHz selectable switching frequency. Drop out voltage at the linear regulator is 0.8 V to minimize power loss. TPS65235-1 provides multiple ways to generate the 22 kHz signal. Integrated linear regulator with push-pull output stage generates 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.
●TPS65235-1 has a special design at FCCM mode to avoid the audible noise especially when VIN is higher or closer to the VLNB output.
●TPS65235-1 supports advanced DiSEqC 2.x standard with 22-kHz tone detection circuit and output interface.
TI
Conv DC-DC 4.5V to 20V Step Up Single-Out 11V to 20V 1A 20Pin WQFN EP T/R
TI
Conv DC-DC 4.5V to 20V Step Up Single-Out 11V to 20V 1A 20Pin WQFN EP T/R
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