Auto-frequency high-power synchronous boost chip ZCC9428
a product review ZCC9428 chip is a automatic frequency, the maximum frequency of 600KHz, high efficiency, wide input current range mode step (the BOOST) chip, and having a barrier function and an adjustable input threshold streaming capabilities. The switching power boost BOOST voltage protection system specially designed to prevent the short-circuit load or cause damage to the system bus blown. The chip power supply having a current limiting switch and driving a synchronous rectifier switch driving characteristics, for low power, high efficiency switching power supply. The user may flexibly create dynamic external loop compensation to obtain optimal transient performance under all conditions. ZCC9428 chip also includes undervoltage lockout, overcurrent protection and overtemperature protection, to prevent damage when the output is overloaded.
Second, product characteristics
• the Thunderbolt the Power the Spec full compliance with the Intel.
• Input isolation
• restrictor input switch gate driver circuit
• the SR gate drive circuit
• Enhanced fast transient response to PWM mode
• 3.0 V-20V wide input range
• Output Voltage up V 22 is
• cell current <1μA when stopped
• the device stops working temperature of 160 ° C
three product applications
• the Thunderbolt interfaces laptops and tablets • • • hot-swap power management communication power supply
