ADP1034ACPZ-1-R7

ADP1034ACPZ-1-R7 is a high performance, isolated micropower management unit (PMU) that combines an isolated flyback dc-to-dc regulator, an inverting buck boost dc-to-dc regulator, and a buck dc-to-dc regulator, providing three isolated power rails. The ADP1034 includes 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 are required. By default, this device flyback regulator operates at a 250KHz switching frequency, and the buck and inverting regulators operate at 125KHz. It can be driven by an external oscillator in the range of 350KHz to 750KHz to ease noise filtering in sensitive applications. It is used in applications such as industrial automation and process control, instrumentation and data acquisition systems, data and power isolation.

• Wide input supply voltage range from 4.5V to 60V
• Integrated flyback power switch, uses a 1:1 ratio transformer for simplified transformer design
• 86% typical efficiency at 2.61W output power, adjustable switching frequency via SYNC input
• Peak current limiting and overvoltage protection, precision enable input
• Internal compensation and soft start control per regulator
• High speed, low propagation delay, SPI signal isolation channels
• Power dissipation is 132mW typical at (IOUT1 = 25mA, IOUT2 = 6mA, IOUT3 = -4mA)
• Operating current (VINP) is 1.9mA typical at (normal operation, VOUT1, VOUT2, VOUT3 = no load)
• Leakage current (precision enable) is 0.03μA typical at (VEN = VVINP)
• Operating temperature range from -40°C to +125°C, 41-lead LFCSP package

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