Power chip

Voltage monitoring 2.93V push-pull output, active low, function and pin order are the same as IMP809SEUR, MAX809SEUR

Output Type: Fixed Output Polarity: Positive Number of Output Channels: 1 Maximum Input Voltage: 30V Output Voltage: 3.3V Dropout Voltage: 25mV

The NCP1251 is a highly integrated PWM controller capable of providing robust high performance off-line power within a very small TSOP-6 encapsulation. The controller has a supply range up to 28 V, has a dithered 65 kHz or 100 kHz switching circuit, and operates under peak current mode control. When the power on the auxiliary side starts to decrease, the controller automatically folds back its switching frequency to a minimum of 26 kHz. As the power drops further, the part enters a skip cycle while limiting the peak current. Overpower protection (OPP) is a difficult measure, especially when no-load standby requirements drive converter specifications. ON Semiconductor's proprietary integrated OPP allows you to take full advantage of the highest power available with only two external resistors, without compromising standby performance. Combined latched overvoltage protection (OVP) on the same pin. To simplify implementation, the auto-recovery OVP also monitors the Vcc line. These features provide effective protection in the event of optocoupler failure or reverse switching operation. Finally, timer-based short-circuit protection provides the best protection scheme, allowing you to precisely select the protection trip point regardless of the loose coupling between the auxiliary winding and the mains winding.

ExpressCard Single Power Interface Switch 20-TSSOP -40 to 85

Programmable output voltage ultra-low power buck converter supporting up to 200mA output current 14-VQFN -40 to 105

High-voltage low-power LDO input: 60V output: 3.3V IQ: 2uA PSRR: 70dB

LM809 3-Pin Voltage Supervisor (Reset IC) with Push-Pull Reset for Power Supply Monitoring