Renesas ZSPM4012 | Demoboard ZSSC1750

Description

The ZSPM4012 is a DC/DC synchronous switching regulator 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 and reduced bill-of-materials costs.The ZSPM4012 utilizes current mode feedback in normal regulation pulse-width modulation (PWM) mode. When the regulator is disabled (EN pin is low), the ZSPM4012 draws less than 10μA quiescentcurrent. The ZSPM4012 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 ZSPM4012 includes supervisory reporting through the PG (Power Good) open drain output to interface other components in the system.

Features

• Output voltage options depending on ordercode
• Fixed output voltages: 1.5V, 1.8V, 2.5V, 3.3V, or 5V with +/- 2% output tolerance
• Adjustable output voltage range: 0.9V to 5V with +/- 1.5% reference
• Wide input voltage range:6V to 24V
• 1MHz +/- 10% fixed switching frequency
• 2A continuous output current
• High efficiency – up to 95%
• Current mode PWM control with pulsefrequency modulation (PFM) 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 over-current, overtemperature, and VOUT over-voltage
• Less than 10μA in Disabled Mode
• Low external component count

Typical applications

• Printers
• Portable products, including
• Set-top boxes
• Wireless access points, cable
• DVD, LCD, LED supplies

More information

• IC product information