LNBH25PQR

The LNBH25PQR is a monolithic voltage regulator specifically designed for LNB (Low Noise Block) applications, commonly used in satellite receivers. It integrates a step-up DC-DC converter and a low dropout linear regulator to provide the necessary voltage and current required by the LNB. This device ensures efficient power management and stable voltage supply, often in the range needed for satellite signal reception.
Key features of the LNBH25PQR include overload and over-temperature protection, output voltage selection, and the capability to supply the necessary 13V/18V polarization signals used to switch between satellite polarities. Additionally, it supports a DiSEqC (Digital Satellite Equipment Control) interface, which enables communication between the satellite receiver and the LNB for signal switching and control.
The device is typically used in set-top boxes and satellite modem applications, providing reliable and efficient power management to ensure optimal performance of the satellite receiving system. Its compact design and integration of essential functions make it a popular choice in the design of satellite communication devices.

The LNBH25PQR is a monolithic voltage regulator specifically designed for powering low-noise block (LNB) converters in satellite receivers. Here are its key features:
1. Output Voltage: It provides selectable output voltages, typically 13V or 18V, for vertical or horizontal polarization switching, respectively.
2. Current Capability: The device can handle up to 0.5A continuous current, making it suitable for feeding LNBs with adequate power.
3. Protection Features: It includes overcurrent protection, thermal shutdown, and undervoltage lockout to enhance reliability and safety.
4. Low Dropout Voltage: Ensures efficient operation even with low input-output voltage differentials.
5. 22 kHz Tone Generator: Integrates a 22 kHz tone signal generator for DiSEqC (Digital Satellite Equipment Control) communication, which is used to control LNBs and switch between multiple satellite feeds.
6. Built-in Interface: The device has an I²C interface for easy integration and control in digital systems.
7. Package Type: It comes in a PowerSO-20 package, which is compact and suitable for space-constrained applications.
These features make the LNBH25PQR an efficient solution for satellite receiver systems, offering flexibility, protection, and easy control.

The LNBH25PQR is packaged in a PowerSSO-36 (Power Shrink Small Outline 36-pin) format, which is designed for efficient thermal performance and minimal space usage in electronic applications.

The LNBH25PQR is a monolithic voltage regulator and interface IC specifically designed for supplying power and control signals to LNBs (Low Noise Block converters) used in satellite receivers. It typically comes in a QFN (Quad Flat No-leads) package and features 16 pins.
Pin Count:
- Total: 16 pins
Functionality:
- Power Supply: Provides a stable supply voltage for the LNB with overcurrent protection.
- Control Interface: Supports I²C bus interface for controlling and programming various functions.
- Output Voltage Selection: Allows selection between different output voltages to accommodate various LNB types.
- Current Limiting and Monitoring: Features adjustable current limiting and protection mechanisms.
- Tone Control: Capable of generating a 22 kHz tone signal for polarization switching and band selection.
- Diagnostic Features: Supports various diagnostic functions to monitor and ensure proper operation.
The LNBH25PQR is widely used in satellite receiver systems to optimize the performance and reliability of LNBs by providing efficient power management and control.

The LNBH25PQR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. It serves a variety of sectors including automotive, industrial, personal electronics, and communications equipment. The company is known for its expertise in developing integrated circuits and system-on-chip solutions.

The LNBH25PQR is a voltage regulator IC commonly used in satellite communication systems, particularly for powering Low Noise Block (LNB) converters in satellite dishes. It provides reliable voltage regulation and protection features, making it suitable for satellite TV receivers and set-top boxes. Its ability to deliver stable voltage over varying loads and its protection functionalities make it an ideal choice for maintaining signal integrity in satellite signal reception.

Equivalent products to the LNBH25PQR, which is a dual LNB supply and control IC, include the TPS65235 from Texas Instruments, RT99890 from Richtek, and NCP4204 from ON Semiconductor. These components offer similar functionality in LNB power supply and DiSEqC control applications, but differences in specifications and features may exist. Always check the datasheet for compatibility with specific requirements.