ROHM BM2PAA1Y-Z DC-DC Converter

The ROHM Non-isolated type PWM DC/DC converter IC built-in switching MOSFET provides an optimum system for all products that include an electrical outlet. It enables simpler design of a high effective converter specializing in non-isolation. By a built-in startup circuit that tolerates 650 V, this IC contributes to low power consumption. A current detection resistor as internal device realizes the small power supply designs. Since a current mode control is utilized, the current can be restricted in each cycle and an excellent performance is demonstrated in the bandwidth and transient response. The switching frequency is fixed to 25 kHz / 65 kHz.

PWM current mode method
Frequency hopping function
Burst operation at light load
Built-in 650 V startup circuit
Built-in 650 V super junction MOSFET
VCC UVLO (under voltage lockout)
VCC OVP (over voltage protection)
Over current detection function per cyc

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