Allicdata Part #: | LTC3877EUK-ND |
Manufacturer Part#: |
LTC3877EUK |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC POWER MANAGEMENT |
More Detail: | * Voltage Regulator IC Output |
DataSheet: | LTC3877EUK Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | * |
Part Status: | Obsolete |
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result.htmlThe LTC3877EUK is a high performance synchronous step-down switching regulator controller from Linear Technology, intended for use in a wide range of applications. It is a single-phase synchronous buck controller with maximum efficiency and minimum switching losses. It features a wide operating temperature range and can support an output voltage of up to 20 volts. It is capable of delivering a maximum current of up to 10A to the load.
The LTC3877EUK is a high frequency controller that has a minimum external parts count and requires very few components for its operation. It has a low quiescent current of 5mA and supports programmable soft-start. It also has a built-in pulse-frequency modulator and powertrain switch, which help it to maintain a high efficiency when operating in the low to mid range output currents. The LTC3877EUK is also featured with an overvoltage protection and a voltage transition detector.
The LTC3877EUK is widely used in telecommunication and industrial applications. Used alone, this controller can operate as a high-efficiency synchronous buck converter with a high output current capability. In addition, it can be configured in other configurations such as flyback, SEPIC or Cuk topologies to support a broad range of applications, including power conditioners, desktop computers, battery charger controllers and point-of-load converters. It can also be used as a pre-regulator in voltage regulator Modules (VRMs) to provide high efficiency power delivery to the load.
The LTC3877EUK employs a peak-current-mode control scheme based on an internal oscillator with variable slope. This scheme permits it to operate in either the fixed frequency or spread spectrum mode with a spreading adjustability of up to 2MHz. The pulse width modulation (PWM) of the LTC3877EUK is also very accurate, enabling precise regulation of the output voltage.
The working principle behind the LTC3877EUK is simple. Its power stage consists of a high-side power N-channel MOSFET and low-side power P-channel MOSFET, which act as a bridge to the switch from the input voltage to the load voltage. When a signal is applied to the input, the controller begins to alternate the conduction of the two power MOSFETs in a Pulse Width Modulated (PWM) signal. As a result, the input voltage is converted to the desired output voltage as determined by the duty cycle of this PWM signal.
Overall, the LTC3877EUK is an ideal solution for many power electronic applications. It has an ultra-low quiescent current, which helps improve its efficiency, while its built-in protection features help maintain a high level of reliability. In addition, its wide operating temperature range and high-current capability enable it to be used in a variety of power electronic applications.
The specific data is subject to PDF, and the above content is for reference
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