SGM61720YPS8G/TR

SGM61720 is a Constant On-Time (COT) synchronous buck converter with a wide input voltage range of 6V to 60V. Using an internal reference voltage, the output voltage is adjustable up to 24V. The device features 2.5A output current capability and operates at a nearly fixed quasi-constant frequency (depending on V_OUT setting). Under light load, the inductor current drops to zero each cycle (DCM operation), and the device enters power-saving mode, where the frequency decreases and varies with load to maintain high efficiency. The SGM61720 offers a comprehensive set of features, including input undervoltage lockout, internal soft-start, short-circuit protection, current limiting, and thermal shutdown. With its COT architecture, the device achieves high step-down conversion ratios while delivering excellent transient response without requiring loop compensation. The SGM61720 is available in a Green SOIC-8 (Exposed Pad) package.

Applications

• Non-isolated telecom step-down regulator
• Secondary high-voltage post-regulator
• Automotive systems
• Mobile base stations
• 48V industrial systems

Key features

• Integrated 100mΩ/75mΩ power MOSFETs
• 6V to 60V wide input voltage range
• 2.5A/5V output current capability
• Constant On-Time (COT) control
• Power-saving mode and PWM mode
• 1ms internal soft-start for inrush current limiting
• Adjustable output voltage up to 24V
• Pre-biased startup
• -40℃ to +125℃ operating junction temperature range
• Green SOIC-8 (exposed pad) package