Product Applications
? STB satellite receivers
? TV satellite receivers
? PC card satellite receivers
Product Description
Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH25S is a monolithic voltage regulator and interface IC, assembled in QFN24L (4x4 mm) specifically designed to provide 13/18 V power supply and 22 kHz tone
signaling to the LNB down-converter in the antenna dish or to the multi-switch box. In this application field, it offers a complete solution with extremely low component count and low power dissipation together with a simple design and I2C standard
Product Benefits and Features
? Complete interface between LNB and I2C bus
? Built-in DC-DC converter for single 12 V supply operation and highefficiency (typ. 93 PERCENT @ 0.5 A)
? Selectable output current limit by external resistor
? Compliant with main satellite receiver output voltage specifications (15 programmable levels)
? Accurate built-in 22 kHz tone generator suits widely accepted standards
? 22 kHz tone waveform integrity guaranteed at no-load condition
? Low drop post regulator and high efficiency step-up PWM with integrated power NMOS allowing low power losses
? LPM function (low power mode) to reduce dissipation
? Overload and overtemperature internal protections with I2C diagnostic bits
? LNB short-circuit dynamic protection
? +/- 4 kV ESD tolerant on output power pins
Specifications
| Attribute | Attribute value |
| ANSM-Part# | ANSM-LNBH25SPQR |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| Special Purpose Regulators | |
| Mfr | STMicroelectronics |
| Series | - |
| Package | Tape & Reel (TR) |
| Cut Tape (CT) | |
| Digi-Reel? | |
| Product Status | Active |
| Applications | Converter, Analog and Digital Satellite STB Receivers/SatTV |
| Voltage - Input | 8V ~ 16V |
| Number of Outputs | 1 |
| Voltage - Output | 13V, 18V |
| Operating Temperature | 0°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-QFN (4x4) |
| Base Product Number | LNBH25 |
Actual product photos
Product Data Book：
For more product information, please download the PDF
Payment&Transportation
Official Certificate&Certificate
Multiple product supply
Company office environment
Warehouse Real Shot
Standard packaging
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