UC3526ADWG4

Frequency - Switching:	1Hz ~ 600kHz
Base Part Number:	UC3526A
Supplier Device Package:	18-SOIC
Package / Case:	18-SOIC (0.295", 7.50mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Enable, Frequency Control, Reset, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	Yes
Duty Cycle (Max):	49%
Series:	--
Voltage - Supply (Vcc/Vdd):	7 V ~ 35 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
Output Configuration:	Positive
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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UC3526ADWG4 is a dual power supply, switched mode DC-DC controller, equipped with a wide range of features in order to make its use as straightforward as possible for controlling the output voltage of low power switching supplies. The UC3526ADWG4 is commonly used in computing, telecommunications and industrial control applications, making it a versatile and reliable piece of hardware for designers to work with.This voltage regulator has two main sections – the feedback control loop and the power output stage. The feedback control loop consists of an external potentiometer, a voltage error amplifier to measure the voltage difference between the output voltage and the reference voltage and then correct the error, and a pulse-width-modulator (PWM) to control the output power in order to maintain the reference voltage. The power output stage consists of a current limit circuit to set the maximum output current, and a high-current MOSFET, which is switched by the PWM. To control the output voltage, the UC3526ADWG4 applies a voltage feedback loop, which utilizes an external pot to set the reference voltage. The voltage error amplifier then adjusts the feedback loop by changing the duty cycle or pulse width of the PWM to ensure that the output voltage remains the same and within a tolerance of the reference voltage.In order to ensure safety, the UC3526ADWG4 also features a comprehensive range of protection functions, designed to protect the IC from any system faults. These include an over-temperature protection circuit, a short-circuit protection circuit, an over-voltage protection circuit and an independent under-voltage protection circuit.The UC3526ADWG4 is a highly integrated and cost-effective solution for controlling the output voltage of low power switching supplies. Its combination of features – dual power supplies, voltage feedback loop, safety functions and protection circuitry – makes it ideal for use in a range of applications such as computing, telecommunications and industrial control.

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