MAX77596ETBB+T

The MAX77596ETBB+T is a 24V, 300mA, buck converter with 1.1µA IQ in 10 TDFN package. It is a small, synchronous buck converter with integrated switches. The device is designed to deliver up to 300mA with input voltages from 3.5V to 24V while using only 1.1µA quiescent current at no load. Voltage quality can be monitored by observing the active-low RESET signal. The device can operate near dropout by running at 98% duty cycle, making it ideal for battery powered applications. The device offers fixed 3.3V output. Frequency is fixed at 1.7MHz which allows for small external components and reduced output ripple. The device offers both forced PWM and skip modes of operation with ultra-low quiescent current of 1.1µA in skip mode. Typical applications include portable devices powered from 2s, 3s, or 4s Li+ batteries, USB type-C devices and point of load applications.

• Supply current of 1.1µA (no load, fixed 3.3V VOUT), operating temperature range from -40°C to +85°C
• Flexible power for systems that require a wide input voltage range
• VIN range from 3.5V to 24V, up to 300mA output current, up to 42V input voltage tolerance
• 98% (maximum) duty cycle operation with low dropout
• Operates from 5V, 12V or 20V USB type-C input power
• Current mode control architecture, operates from 2S, 3S or 4S li-ion battery
• Minimizes power consumption and extends battery life
• 86% peak efficiency at 12VIN, 3.3 VOUT, minimizes solution size
• Minimizes solution size, minimum on-time of 34ns, robust solution
• Short circuit, thermal protections, 6.67ms internal soft-start minimizes inrush current

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Power Management, Portable Devices

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