Part Details for MAX1755 by Maxim Integrated Products

The MAX17559 is a dual-output, synchronous step-down controller that drives nMOSFETs. The device uses a constant- frequency, peak-current-mode architecture. The two outputs can be configured as independent voltage rails. Input capacitor size is minimized by running the two outputs 180° out of phase. The IC supports current sensing using either an external current-sense resistor for accuracy or an inductor DCR for improved system efficiency. Current foldback or latch-off limits MOSFET power dissipation under short-circuit conditions. The IC provides independent adjustable soft-starts/stops for each output and can start up monotonically into a pre-biased output. The IC can be configured in either PWM or DCM modes of operation, depending on whether constant-frequency operation or light-load efficiency is desired. The IC operates over the -40°C to +125°C temperature range and is available in a lead(Pb)-free, 7mm x 7mm, 32-pin TQFP, package.<p>Key Features<p>Wide 4.5V to 60V Input Voltage Range<p>Wide 0.8V to 24V Output Voltage Range<p>RSENSE or Inductor DCR Current-Sensing<p>Fixed 180° Out-of-Phase Operation<p>Adjustable 100kHz to 2.2MHz Switching Frequency<p>Independent Enable and PGOOD<p>Available in a Lead(Pb)-Free 7mm x 7mm, 32-Pin TQFP Package<p>Enhances Power Efficiency<p>Low-Impedance Gate Drives for High Efficiency<p>DCM Operation at Light Loads<p>Auxiliary Bootstrap LDO<p>Operates Reliably in Adverse Industrial Environments<p>Independent Adjustable Soft-Start/Stop or Tracking<p>Current Selectable Foldback or Latch-off Limits<p>MOSFET Heat Dissipation During a Short-Circuit Condition<p>Operates Over the -40°C to +125°C Temperature Range<p>Output Overvoltage and Overtemperature Protections

The MAXREFDES1202 is a dual-phase, buck converter reference design developed using the MAX17558, MAX15019A, and MAX17552. This reference design is rated to operate over a wide input voltage range from 15V to 55V. The design can deliver an output power of 360W at 12V.<p>Key Features<p>Very High Efficiency > 95% at Full Load<p>Very Low Line Regulation < 0.1% and Very Low Load Regulation < 0.25%<p>Inductor DCR Current Sensing<p>Output-Voltage Ripple < 0.5% at VIN (nom)<p>Overshoot < 3% for 50% Step Load

Features<p>High accuracy<p>0 to 10V voltage output with ±20% overrange<p>Isolated power and data<p>Micro PLC form factor<p>Device drivers<p>Example C source code<p>Test data

Features<p>Tiny industrial sensor form factor<p>Ultra low power: 150mW<p>Low cost<p>IEC 61131-9<p>IO-Link version 1.1 and 1.0 compliant<p>Field bus agnostic<p>Transient voltage suppression<p>Reverse polarity and short-circuit protected

Features<p>DIN rail form factor<p>IEC 61131-9<p>IO-Link version 1.1 and 1.0 compliant<p>On-chip 8:1 serialization<p>Fault monitoring<p>Field powered LED drivers<p>Competitive Advantages<p>Small size<p>Low power<p>Low cost