MAX5071CAUA+T

Frequency - Switching:	20kHz ~ 1MHz
Base Part Number:	MAX5071
Supplier Device Package:	8-uMAX
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	49.8%
Series:	--
Voltage - Supply (Vcc/Vdd):	10.8 V ~ 30 V
Output Phases:	1
Number of Outputs:	1
Topology:	Flyback
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MAX5071CAUA+T Application Field and Working PrincipleThe MAX5071CAUA+T is a highly integrated, DC-to-DC switching regulator controller that combines on a single chip all the components needed to build a step-down switching regulator. The MAX5071CAUA+T uses an advanced constant-frequency, variable-duty-cycle peak-current-mode control architecture that helps to provide fast loop response and excellent regulation accuracy. It is designed for a wide range of output power and output voltage requirements. Specifically, it can be used in a variety of applications including personal computers, communications systems, and battery-powered systems.The MAX5071CAUA+T supports a range of output voltages from 0.8V to 5.5V with a maximum output current of 1.2A. With a significant amount of integration on-chip, the MAX5071CAUA+T helps to simplify design and minimize the number of external components required. The device also supports many advanced features such as programmable soft-start, adjustable duty cycle, and over-current/overtemperature/undervoltage protection.The MAX5071CAUA+T features an internal high-side power switch that is capable of delivering up to 1.2A of output load current with an external Schottky catch diode. The controller supports a wide range of output voltage and switching frequency, from 2MHz to 4MHz, depending on current levels and components. The MAX5071CAUA+T also features excellent line/load regulation as well as temperature-compensated voltage regulation.The MAX5071CAUA+T includes all the necessary control circuitry to enable independent, fixed-frequency PWM operation over a wide voltage and current range. The MAX5071CAUA+T controls the power switch by monitoring an external sense resistor and its associated Schottky diode. When the peak current limit is reached, the controller automatically shuts off the power switch by pulling down the power switch enable pin. The MAX5071CAUA+T also provides over-current/overtemperature/undervoltage protection.In order to meet a wide range of design requirements, the MAX5071CAUA+T provides a number of programmable features. These include adjustable soft-start, adjustable frequency, adjustable duty cycle, adjustable slew rate, and adjustable current limit. Additionally, the MAX5071CAUA+T includes a fully integrated power-on reset (POR) circuit and can be used with a variety of external components to custom-tailor the regulation performance to match the specific application. In summary, the MAX5071CAUA+T is a highly integrated DC-to-DC switching regulator controller that is designed for a wide range of applications including personal computers, communications systems, and battery-powered systems. The device\'s combination of programmable features, high-efficiency, and low power consumption make it an ideal choice for applications that require efficient, reliable, and flexible DC-to-DC power management solutions.

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