Loading [MathJax]/jax/output/SVG/fonts/TeX/fontdata.js
DATA SHEET
TPS65235-1 LNB Voltage Regulator With I2C Interface
1 Features
- Complete integrated solution for LNB and
I2C interface
- DiSEqC 2.x, and DiSEqC 1.x compatible
- Supports 5-V, 12-V, and 15-V power rail
- Up to 1000-mA accurate output current limit
adjustable by external resistor
- Boost switch peak current limit proportional to
LDO current limit
- Boost converter with 140-mΩ low
Rds(on) internal power switch
- Boost switching frequency 1-MHz or 500-kHz
selectable
- Audible noise avoided at force PWM mode
- Dedicated enable pin for non-I2C
application
- Low-dropout (LDO) regulator with push-pull output
stage for VLNB output
- Built-in accurate 22-kHz tone generator and
external tone input support
- Supports both external 44-kHz and 22-kHz tone
input
- Adjustable soft start and 13-V to 18-V voltage
transition time
- 650-mV to 750-mV 22-kHz tone amplitude
selection
- I2C registers accessible with EN
low
- Short circuit dynamic protection
- Diagnostics for output voltage level, DiSEqC tone
input and output, current level, and cable connection
- Thermal protection available
- 20-pin WQFN 3-mm × 3-mm (RUK) package
