LM53602

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM53602, LM53603 SNVSAR0 – NOVEMBER 2016 LM53603 (3 A), LM53602 (2 A) 3.5 V to 36 V Wide-VIN Synchronous 2.1 MHz Step-Down Converters 1 Features 1 3-A or 2-A Maximum Load Current Input Voltage Range From 3.5 V to 36 V: Transients to 42 V Adjustable Output Voltage From 3.3 V to 10 V 2.1-MHz Fixed Switching Frequency ±2% Output Voltage Tolerance –40°C to 150°C Junction Temperature Range 1.7-µA Shutdown Current (Typical) 24-µA Input Supply Current at No Load (Typical) Reset Output With Filter and Delay Automatic Light Load Mode for Improved Efficiency User-Selectable Forced PWM Mode (FPWM) Built-In Loop Compensation, Soft-Start, Current Limit, Thermal Shutdown, UVLO, and External Frequency Synchronization Thermally Enhanced 16-Lead Package: 5 mm × 4.4 mm × 1 mm 2 Applications Industrial Power Supplies in Building and Factory Automation Battery Operated Devices Low-noise and Low-EMI Applications Optical Communication Systems 3 Description The LM53603 and LM53602 buck regulators are specifically designed for 12-V industrial and automotive applications, providing an adjustable output voltage from 3.3 V to 10 V at 3 A or 2 A, from an input voltage of up to 36 V. Advanced high-speed circuitry allows the device to regulate from an input of up to 20 V, while providing an output of 5 V at a switching frequency of 2.1 MHz. The innovative architecture allows the dev...