MAX77596ETBB+T

Voltage - Input (Max):	24V
Supplier Device Package:	10-TDFN (2.5x2.0)
Package / Case:	10-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.75MHz
Current - Output:	300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Series:	--
Voltage - Input (Min):	3.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MAX77596ETBB+T Voltage Regulator

The MAX77596ETBB+T is a device from the family of DC-DC switching regulators from Maxim Integrated. It is designed using advanced technology of adaptive control, with fewer external components, to deliver superior efficiency and transient performance. This integrated device can be used for step-down, step-up, and Cuk conversion applications and is available in a small footprint package.This device is suitable for applications where very low quiescent current, low noise, and high efficiency are required. It has up to 2000V peak voltage, 500mA peak source/sink currents, and 2000mA sink continuous current. It also works with output loads up to 5A and can support voltage steps of 3.3V to 5.5V or 2.5V to 5.5V.The MAX77596ETBB+T offers a variety of features that can simplify its application. It includes a single-wire control bus, I2C/SMBus interface, and SMBus/PWM mode to program the output power or voltage as per user requirements. It also features Spread Spectrum Frequency Modulation (SSFM) for improved EMI performance, adaptive voltage scaling (AVS) for improved power efficiency, and programmable output Soft-Start to reduce the inrush current.Moreover, the MAX77596ETBB+T has integrated protection circuits to prevent overvoltage, undervoltage, overcurrent, thermal shutdown and short-circuit events. It also has a synchronization feature to reduce noise on the power line and has a battery charging algorithm for charging connected batteries. A current limit feature temporarily folds back the output voltage when overcurrent conditions occur.The MAX77596ETBB+T is a DC-DC switching regulator that can provide step-down, step-up, and Cuk conversion applications with superior efficiency and transient performance. Its high voltage and current ratings combined with integrated protection, I2C and SMBus interface, and other useful features make it suitable for use in a wide range of applications.

Working Principle

The MAX77596ETBB+T is an integrated switching regulator designed to provide a regulated DC output from an unregulated DC input source. It can provide either step-down, step-up, or Cuk conversion applications. Depending on the type of application, the desired voltage output level is set using the onboard controller, typically via a I2C/SMBus interface or a single-wire control bus. The core of the MAX77596ETBB+T is a buck/boost switching regulator that, depending on the external components, is capable of providing step-up or step-down conversion. A Pulse Width Modulated (PWM) switch, a synchronous or non-synchronous rectifier and an inductor are the main components of the switching regulator circuit. The PWM is the main component of the switching regulator, as it is responsible for controlling the switching frequency and the duty cycle. This control is achieved by comparing the voltage feedback of the output voltage with an internal reference voltage. The output voltage is sampled and compared with a fixed level. This comparison produces an error signal. The error signal is feed to a controller that applies compensation and then generates a PWM pulse that is used to drive the PWM switch. The PWM switch will then convert the input DC voltage to pulses of electrical energy, which are then converted to DC voltage by the rectifier circuit. The inductor plays a role in smoothing the current in the output stage, so that the resulting voltage stays within a predetermined range.The MAX77596ETBB+T also includes protection from voltage and current extremes, integrated with protection from thermal shutdown and short-circuit events. It also has a synchronization feature to reduce noise on the power line and a battery charging algorithm to charge connected batteries.

Applications

The MAX77596ETBB+T is suitable for applications such as: • Automotive systems • Point-of-load regulated DC-DC converters • Battery operated equipment• Portable instruments • Computing systems • Industrial control systems• Tablet PCs and notebooksThe device is particularly suitable for battery-powered systems due to its low quiescent current, low noise, and high efficiency. It is also suitable for applications where small form factor and cost sensitivity are important. The MAX77596ETBB+T is a versatile device that can be used for a variety of applications. It is capable of operating efficiently in a wide range of temperature levels, with excellent thermal protection. The integrated single-wire control bus, I2C/SMBus interface, and SMBus/PWM mode make the device easy to program and optimize for the desired output power and voltage requirements.Overall, the MAX77596ETBB+T is an advanced and feature-packed switching regulator suitable for a wide range of applications. With its high voltage and current limits, low noise, excellent thermal protection, and high efficiency, it is an ideal choice for applications where a high degree of performance and reliability are desired.

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