Three-Channel, Isolated Micropower
Management Unit with Seven Digital Isolators ADP1031 Data Sheet TYPICAL APPLICATION CIRCUIT 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 …
