LNBH25LSPQR Integrated Circuits (ICs) |
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| Allicdata Part #: | 497-15429-2-ND |
| Manufacturer Part#: |
LNBH25LSPQR |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | STMicroelectronics |
| Short Description: | IC LNB CTRL STEP-UP I2C 24VFQFPN |
| More Detail: | - Converter, Analog and Digital Satellite STB Rece... |
| DataSheet: |  LNBH25LSPQR Datasheet/PDF |
| Quantity: | 1000 |
Specifications
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Active |
| Applications: | Converter, Analog and Digital Satellite STB Receivers/SatTV |
| Voltage - Input: | 8 V ~ 16 V |
| 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) |
Description
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The LNBH25LSPQR voltage regulator is primarily used in low-noise and power-sensitive applications, such as notebook computers and graphics cards. It is composed of a low-noise buck-type switching controller and an independent linear shunt regulator that provides voltage and current regulation. This voltage regulator provides precise control over the output voltage for enhanced system performance and greater flexibility.The LNBH25LSPQR is a monolithic DC-DC buck controller and linear regulator IC, which offers excellent frequency and dynamic response with very low noise operation. It uses a simple scheme to control the output voltage, which is set using two external resistors and the enable pin. The LNBH25LSPQR has a wide input voltage range: from 0.25V to 7.0V. It can operate from a single positive supply or from a dual positive/negative power supply. Furthermore, the regulator is integrated with an adjustable under-voltage protection, which can be used to limit the input voltage to a certain value.The main component of the LNBH25LSPQR application is the monolithic buck switching controller, which provides the necessary regulation by controlling the amount of power delivered to the load. The buck switching controller consists of an oscillator, an error amplifier, and a PWM comparator. The oscillator generates an output which is used to drive the switching transistor and to set the switching frequency of the device. The error amplifier compares the output voltage of the regulator to the desired value and adjusts the duty cycle of the switching transistor accordingly. The PWM comparator synchronizes the output transistor and the oscillator to ensure that power is being delivered at the correct frequency.The linear regulation part of the LNBH25LSPQR is composed of an adjustable shunt regulator, which ensures that the output provides a constant voltage regulation even at full load. This makes the device suitable for low-noise and power-sensitive applications. The LNBH25LSPQR also integrates an adjustable under-voltage protection, which can be used to limit the input voltage to a certain value. In summary, the LNBH25LSPQR is a monolithic DC-DC buck controller and linear regulator IC, which offers excellent frequency and dynamic response with very low noise operation. The voltage regulator provides precise control over the output voltage for enhanced system performance and greater flexibility. Furthermore, the device integrates an adjustable under-voltage protection, which can be used to limit the input voltage to a certain value. This makes the LNBH25LSPQR suitable for low-noise and power-sensitive applications, such as notebook computers and graphics cards.The specific data is subject to PDF, and the above content is for reference
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