SGM61410XN6G(TOKMAS)

4.5V - 40V input, 600mA output, fully integrated synchronous buck converters. The device employs fixed frequency peak current mode control. An internal clock with 2MHz frequency initiates turning on the integrated high - side power MOSFET Q1 in each cycle, then inductor current rises linearly and the converter charges output cap. When sensed voltage on high - side MOSFET peak current rising above the voltage of internal COMP, the device turns off high - side MOSFET Q1 and turns on low - side MOSFET Q2. The inductor current decreases when MOSFET Q2 is ON. In the next rising edge of clock cycle, the low - side MOSFET Q2 turns off. This repeats on cycle - by - cycle based. The peak current mode control with the internal loop compensation network and the built - in 1ms soft - start simplify the footprints and minimize the off - chip component counts. Meanwhile, it reduces the external passive components size as well. The quiescent current is 90uA typical under no - load and without switching condition. When disabling the device, the supply shut down current is only 1μA. It works at Pulse Skipping Mode PSM to further increase the power efficiency in light load condition.

Applications

• Industrial 24V Distributed Power Bus
• Power meter
• Elevator, PLC, Servo
• Automatic Control
• Automotive

Key features

• Wide Input Range: 4.5V - 40V
• Up to 600mA Continuous Output Current
• Less than 0.1% Output Ripple at 12V Output
• 0.81V ± 2.5% Feedback Reference Voltage
• Integrated 600mΩ High - Side and 300mΩ Low - Side Power MOSFETs
• Fixed Frequency 2MHz
• Pulse Skipping Mode (PSM) at Light Load
• 90uA Quiescent Current in Sleep Mode
• 80ns Minimum On - time
• 1ms Internal Soft - start Time
• Over - Temperature Protection
• Available in an TSOT23 - 6 Package