LM53625-Q1

LM53625-Q1, LM53635-Q1 SNVSAA7B – DECEMBER 2015 – REVISED JULY 2021 LM53625/35-Q1, 2.5-A or 3.5-A, 36-V Synchronous, 2.1-MHz, Step-Down DC-DC Converter 1 Features AEC-Q100 automotive qualified: – Device temperature grade 1: –40°C to +125°C ambient operating temperature range – Device HBM classification level 2 – Device CDM classification level C6 –40°C to +150°C junction temperature range 15-µA quiescent urrent at no load (typical) with 3.3-V output 5.0-mm × 4.0-mm VQFN package with or without wettable flanks and 0.6-mm VIN spacing Low EMI and switch noise Spread spectrum option External frequency synchronization RESET output with internal filter and 3-ms release timer Pin-selectable forced PWM mode Built-in compensation, soft start, current limit, thermal shutdown, and UVLO 0.6-V dropout at 3.5 A at 105°C TA ±1% output voltage tolerance (–40°C to 125°C TJ) Available with fixed 5-V, 3.3-V or adjustable output 2 Applications Telematics Head unit Instrumentation cluster Battery-powered applications 3 Description The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of...