ZSPM4011AA1W00

The ZSPM4011AA1W00 is a high-efficiency synchronous Buck Converter with fully integrated power switches, internal compensation and full fault protection. The 1MHz switching frequency enables using small filter components, resulting in reduced board space. The ZSPM4011 utilizes current-mode feedback in normal regulation pulse-width modulation (PWM) mode. When the regulator is disabled (EN pin is low), the ZSPM4011 draws less than 10µA quiescent current. The ZSPM4011 integrates a wide range of protection circuitry, including input supply undervoltage lockout, output voltage soft-start, current limit, VOUT over-voltage and thermal shutdown. The ZSPM4011 includes supervisory reporting through the PG (power good) open drain output to interface other components in the system.

• Current-mode PWM control with pulse frequency modulation mode for improved light load efficiency
• Voltage supervisor for VOUT reported at the PG pin
• Input supply under voltage lockout
• soft-start for controlled startup with no overshoot
• Full protection for overcurrent, over-temperature and VOUT overvoltage
• Low external component count
• Increased battery life
• Minimal external component count (3 capacitors, 1 inductor)
• Inherent fault protection and reporting
• Up to 95% high efficiency
• <lt/>10µA Disabled mode