STMICROELECTRONICS A6983CQTR DC-DC Converter, Synchronous Buck, Adjustable, 3A, 3.5 to 38 V In, 850mV to 38 V Out, QFN-EP-16

A6983CQTR is an easy-to-use synchronous monolithic step-down regulator capable of delivering up to 3A DC to the load. The wide input voltage range makes the device suitable for a broad range of applications. The �low consumption mode� is designed for applications active during car parking, so it maximizes the efficiency at the light load with the controlled output voltage ripple. This device allows the switching frequency to be selected in the 200KHz to 2.3MHz range with an optional spread spectrum for improved EMC. The EN pin provides enable/disable functionality. The typical shutdown current is 2?A when disabled. As soon as the EN pin is pulled up, the device is enabled, and the internal 1.3ms soft-start takes place. It features a power good open collector that monitors the FB voltage. It is used in applications such as designed for automotive systems, battery-powered applications, car body applications (LCM), and smart ambient lighting system supply.

• AEC-Q100 qualified, operating input voltage range from 3.5V to 38V
• Load dump tolerant up to 40V, output voltage from 0.85V to VIN
• Internal compensation network, internal soft-start, high voltage VIN compatible enable
• Output overvoltage protection, output voltage sequencing, thermal protection
• Optional spread spectrum for improved EMC, power good, adjustable output voltage
• Shutdown current from VIN is 2?A typical at (VEN = GND, TJ = -40 to +150°C, VIN = 12V)
• Synchronization range from 200 to 2200KHz, peak current limit is 4.6A typical
• Minimum on time is 75ns typical at (TJ = -40 to +150°C, VIN = 12V)
• Minimum off time is 200ns typical at (TJ = -40 to +150°C, VIN = 12V)
• Operating temperature range from -40°C to 150°C, QFN16 package