The DS1037-01-09MNAKSI74 is an IC (Integrated Circuit) from the Ninigi Series, developed by Diodes Incorporated. It is a 1.5 A, variable frequency and adjustment-free high efficiency Synchronous Rectifier Step-down DC-DC converter, optimized for small size and low cost. It utilizes high-level MOSFET technology combined with a unique current-mode architecture and innovative design technique to achieve up to 93% efficiency while remaining small and enabling faster transient response. The DS1037-01-09MNAKSI74 offers 1.5A output, adjustable output voltage and operates over a wide input voltage range of 4.5V to 42V. It can externally synchronize to a wide range of frequencies up to 2.2MHz, allowing it to operate at 500KHz with no external synchronization required. Other features include a low power shutdown mode, thermal shut-down protection, auto switch to PFM at low loads, under voltage lockout and over temperature protection.