• Part: RT7257J
  • Description: Synchronous Step-Down Converter
  • Manufacturer: Richtek
  • Size: 214.64 KB
Download RT7257J Datasheet PDF
Richtek
RT7257J
Description The RT7257J is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 18V input supply. The RT7257J's current mode architecture and external pensation allow the transient response to be optimized over a wide input voltage range and loads. Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start-up. The RT7257J also provides under voltage protection and thermal shutdown protection. The low current (<3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT7257J is available in an SOP-8 (Exposed Pad) package. Marking Information RT7257JCHZSP : Product Number RT7257JCH ZSPYMDNN YMDNN : Date Code Features - ±1.5% High Accuracy Reference Voltage - 4.5V to 18V Input Voltage Range - 3A Output Current - Integrated N-MOSFET Switches - Current Mode Control - Fixed Frequency...