500mA LNB-Power Supply & Control Voltage Regulator, STI8036 Replace TPS65233.
STI8036
STI8036.pdf
STI8036.pdfFEATURES
? High Efficiency: Up to 90%
? Low noise output to avoid sensitivity of Can Tuner
and DISH’s LNA dropping down
? Noise 40mV@20MHz BWL
? Single chip solution on 650mVpp
? 22kHz TONE with 10μs Trise/Tfall for less
Transferring noise
? LNB Voltages (2 levels: 14V and 19V) compatible
with common standards, Push-pull output stage
minimizes 14V → 19V and 19V → 14V output
transition times
? External 22kHz TONE input
? Integrated DC/DC BOOST converter and high
efficiency (typ. 87%) with integrated Power MOSFET
? 1.0MHz Switch Frequency BOOST
? Integrated low Noise Linear Regulator
? 5.0V, 3.3V, 2.5V, 1.8V logic compatible
? Internal Short, OCP, OTP protection
? ESOP8 package
PIN CONFIGUTION
優(yōu)勢替代
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
? Adjustable Soft-Start and 13-V/18-V Voltage
Transition Time
? Compliant with main satellite receiver systems
Specifications
? LNB Short Circuit Dynamic Pprotection
? Diagnostics for Output Voltage Level, Input
Supply UVLO, and DiSEqC Tone Output
? Cable Disconnect Diagnostic
? Available in a 16-Pin QFN 3-mm x 3-mm (RTE)
Package
PIN CONFIGUTION
