ADI ADP1031ACPZ-1

The ADP1031 is a high performance, isolated micropower management unit (PMU) that combines an isolated flyback dc-to-dc regulator, an inverting dc-to-dc regulator, and a buck dc-to-dc regulator, providing three isolated power rails. Additionally, the ADP1031 contains four, high speed, serial peripheral interface (SPI) isolation channels and three general-purpose isolators for channel to channel applications where low power dissipation and small solution size is required.

• Wide input supply voltage range: 4.5 V to 60 V
• Integrated flyback power switch
• Generates isolated, independent bipolar outputs and factory programmable buck output VOUT1: 21 V, 24 V or 6 V to 28 V VOUT2: 5.15 V, 5.0 V, or 3.3 V VOUT3: −24 V to −5 V
• Uses a 1:1 ratio transformer for simplified transformer design
• Peak current limiting and OVP for flyback, buck, and inverting regulators
• Precision enable input and power-good output
• Adjustable switching frequency via SYNC input
• Internal compensation and soft start control per regulator
• High speed, low propagation delay, SPI signal isolation channels
• Three, 100 kbps general-purpose isolated data channels
• 9 mm×7 mm LFCSP form factor enables small overall solution size
• -40°C to +125°C operating junction temperature range
• Conforms to CISPR11 Class B radiated emission limits
• Safety and regulatory approvals (pending) UL recognition: 2500 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A 300 V rms basic insulation between slave, master, and field power domains (IEC 61010-1, pending) VDE certificate of conformity DIN V VDE 0884-10 (VDE 0884-10):2006-12 VIORM=565 VPEAK

• Industrial automation and process control
• Instrumentation and data acquisition systems
• Data and power isolation