ISL9492
ISL9492 is Single Output LNB Supply and Control Voltage Regulator manufactured by Renesas.
Features
- Single-Chip Power Solution
- Operation for 1-Tuner/1-Dish Applications
- Integrated DC/DC Converter and I2C Interface
- Integrated Boost MOSFET
- Switch-Mode Power Converter for Lowest Dissipation
- 490k Hz Boost Switching Frequency
- Boost PWMs with > 92% Efficiency
- Selectable 13.5V or 18.5V Outputs
- I2C and Pin Controllable Output
- 31V Output Back-Bias Capability
- Built-in Tone Oscillator Factory
- Facilitates Di SEq C (EUTELSAT) Encoding
- Trimmed to 22k Hz
- External Modulation Input
- Di SEq C 2.0 Support and Diagnostics
- Internal Overvoltage, Undervoltage, Overcurrent Protection, Over-Temperature Flags Accessible through the I2C Interface and Fault Signal Status Pin
- Short-Circuit Protection
Applications
- LNB Power Supply and Control for Satellite Set-Top Box
TXT TDOUT EXTM
19 EXTM 15 TDOUT 14 TDIN 18 TXT 13 SVTOP 12 ADDR1 11 ADDR0
C1 0.047µF
C2 1µF
C5 2.2n F
C3 1µF
FERRITE BEAD
27 CPVOUT 28 CPSWOUT
1 CPSWIN
6 VCC 20 LDO_SGND ISL9492
25 LDO_SGND
5 ABYP
9 PGND
FLT# 21 SCL 17 SDA 16
DBYP 10 TCAP 22
NC 4 DGATE 23
R1 100k
C8 0.22µF
D3...
