TPS65235-1RUKR
ActiveLNB VOLTAGE REGULATOR WITH I2C INTERFACE IN FCCM MODE
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TPS65235-1RUKR
ActiveLNB VOLTAGE REGULATOR WITH I2C INTERFACE IN FCCM MODE
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS65235-1RUKR |
|---|---|
| Frequency - Switching | 500 kHz, 1 MHz |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-WQFN (3x3) |
| Topology | Step-Up (Boost) (1), Linear (LDO) (1) |
| Voltage - Supply [Max] | 20 V |
| Voltage - Supply [Min] | 4.5 V |
| Voltage/Current - Output 1 | 2.4 A |
| Voltage/Current - Output 2 | Programmable |
| w/LED Driver | False |
| w/Sequencer | False |
| w/Supervisor | False |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.74 | |
| 10 | $ 1.56 | |||
| 25 | $ 1.47 | |||
| 100 | $ 1.25 | |||
| 250 | $ 1.18 | |||
| 500 | $ 1.03 | |||
| 1000 | $ 0.85 | |||
| Digi-Reel® | 1 | $ 1.74 | ||
| 10 | $ 1.56 | |||
| 25 | $ 1.47 | |||
| 100 | $ 1.25 | |||
| 250 | $ 1.18 | |||
| 500 | $ 1.03 | |||
| 1000 | $ 0.85 | |||
| N/A | 2740 | $ 1.99 | ||
| Tape & Reel (TR) | 3000 | $ 0.81 | ||
| 6000 | $ 0.77 | |||
| 9000 | $ 0.75 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.31 | |
| 100 | $ 1.08 | |||
| 250 | $ 0.78 | |||
| 1000 | $ 0.58 | |||
Description
General part information
TPS65235 Series
Designed for analog and digital satellite receivers, the TPS65235-1 is a monolithic voltage regulator with I 2C 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. The device offers a complete solution with minimum component count, low power dissipation together with simple design and I 2C standard interface.
The 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. The 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 I 2C is available for system monitoring.
The 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.
Documents
Technical documentation and resources
