ISL6529ACB-T

Voltage/Current - Output 3:	--
Base Part Number:	ISL6529
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	3.3V, 5V
w/Sequencer:	No
w/Supervisor:	No
w/LED Driver:	No
Series:	--
Voltage/Current - Output 2:	0.8 V ~ 3.3 V, 4A
Voltage/Current - Output 1:	0.8 V ~ 3.3 V, 15A
Frequency - Switching:	600kHz
Number of Outputs:	2
Function:	Any Function
Topology:	Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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ISL6529ACB-T Application Field and Working Principle

PMIC - Voltage Regulators - Linear + Switching

The ISL6529ACB-T is an advanced, low power Field-Programmable Mixed Signal integrated circuit designed to meet the demands of Power Management, Voltage Regulation and System Monitoring applications. This device functions as both a Linear Voltage Regulator and a Swing-Mode Switching Regulator. It is capable of providing an adjustable output voltage range of 0.9V to 5.5V that is further adjustable with external components when used in a voltage regulating circuit. It is programmed digitally using a 1-Wire interface, thus allowing for simple and flexible system integration.Text continues after the jump…The main features of the ISL6529ACB-T include a wide input voltage range of 2.5V-28V, and a programmable output voltage range of 0.9V-5.5V. Its power-up/down circuitry supports seamless power transitions when used with other devices in the system. This integrated circuit provides multiple time bases, temperature monitoring, and adjustable voltage changeover thresholds. A few of its functional blocks are a programmable linear regulator, a multi-phase switch-mode regulator, power-up/down control circuitry, and various monitoring functions. The switching regulator section has 8 channels with programmable output currents and overcurrent protection. The linear regulator has a programmable output current limit that can be adjusted with an external resistor. The ISL6529ACB-T is ideal for use as an output buffer in voltage regulators, battery management systems, automotive chargers, switching power supplies, and DC/DC converters. By employing this device in these applications, system designers can ensure efficient, accurate, and reliable power management solutions.The Linear Voltage Regulator works by using an external P-channel MOSFET to regulate the output voltage to a predetermined level by adjusting the gate voltage with an external voltage. This voltage is then compared with the voltage from the external voltage reference and adjusted accordingly to maintain the desired output voltage. The limitation of this technology is that the output voltage is limited by the difference between the external reference voltage and the gate voltage of the MOSFET.The Switching Voltage Regulator section works by using an internal MOSFET switch to regulate the output voltage. The PWM signal that is generated by the control circuit is fed to the MOSFET, which will then switch the power applied to its gate according to the signal. The output voltage is then regulated by the duty cycle of the PWM signal, thus allowing the output voltage to be set to any desired level.In summary, the ISL6529ACB-T is an advanced device that integrates a Linear Voltage Regulator and a Switching Voltage Regulator. Its programmable features and low power requirement make it an ideal choice for power management applications. Furthermore, the ability to adjust its output voltage with external components provides increased flexibility when designing voltage regulators.

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