ISL6526CBZ

Frequency - Switching:	300kHz
Base Part Number:	ISL6526
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Enable, Phase Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	2.97 V ~ 3.63 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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ISL6526CBZ Application Field and Working PrincipleThe ISL6526CBZ is a high-performance DC/DC switching controller designed for cost-sensitive and space-constrained applications. It features a highly integrated programmable architecture with adjustable voltage and current levels, enabling direct control of a wide range of distribution networks, motor drives, and other high power applications. With a fast transient response and a wide bandwidth, the controller is suitable for multiple applications including power factor correction, voltage containment, and load balancing. In addition, the controller is equipped with a wide selection of performance-enhancing options such as temperature compensation, power factor correction, pulse-width modulation, active ORing, and current sensing.The ISL6526CBZ belongs to the DC/DC switching controller class of voltage regulators (PMIC). It is intended for regulating a DC/DC switching regulator, controlling the duty cycle and current for a power system. The ISL6526CBZ features an integrated Pulse-Width Modulation (PWM) and Phase-Shift Modulation (PSM) controllers, providing a high level of accuracy, resolution and stability. SW modes, and an adjustable operating frequency, make the ISL6526CBZ suitable for any application. In addition, advanced diagnostics options and programmable soft start allow users to customize their applications, ensuring accurate and safe operation.The ISL6526CBZ controller operates in either pulse-width modulation (PWM) or phase-shift modulation (PSM) mode, operating at a pre-designated frequency. PWM mode enables fast switching action to ensure an accurate output voltage. The PSM mode works with a single frequency and allows the controller to account for small variations in the input voltage. So, when input voltage variations occur, the controller shifts the switching frequency accordingly, resulting in improved accuracy and control. In switch mode, the controller maintains an upper or lower limit on the output voltage/current by using an internal voltage reference as the feedback signal. The limitation range is set in the form of voltage, temperature or current limit. Upon crossing the limit, the controller instructs the switching devices to turn off, thus opening the power path to the load.The ISL6526CBZ is also equipped with advanced protection features that keep the system safe during fault conditions. Over-voltage, over-current and short-circuit protection are enabled via a programmable trip point. Under-voltage lock-out and adjustable soft start also prevent sudden surges in power, protecting users from electrical shock. Lossless sensing terminals further minimize losses, providing optimized accuracy and stability.In summary, the ISL6526CBZ is a powerful and reliable DC/DC switching controller, suitable for a wide range of applications. Its fast transient response and wide bandwidth allow it to accommodate a variety of voltage and current requirements. Its protection features protect the system from electrical shock, while its advanced diagnostics options ensure a safe and accurate operation. The controller is a great choice for a variety of applications, including motor drives, power factor correction, voltage containment and load balancing.

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