Integrated 4V-60V, 150mA, Himalaya uSLIC Power Module DC-DC Converter with 50mA Linear Regulator

The Himalaya series of voltage-regulator ICs and power modules enable cooler, smaller, and simpler power-supply solutions. The MAXM17710-MAXM17726 family of dual output regulators integrate a high efficiency 150mA synchronous step-down DC-DC converter and a high power supply rejection ratio (PSRR), low noise, 50mA linear regulator into uSLIC™ power modules. The modules operate from a wide input voltage range of 4V to 60V. The step-down converter and linear regulator can deliver output currents up to 150mA and 50mA, respectively. MAXM17710–MAXM17714 modules offer fixed 3.3V output from the DC-DC converter. MAXM17715–MAXM17720 modules offer fixed 5V output from the DC-DC converter. MAXM17721–MAXM17726 modules offer adjustable output voltage from the DC-DC converter. The output of the DC-DC converter serves as the input to the linear regulator. The linear regulators offer fixed output voltages between 1.2V and 3.3V in different modules. Refer to the Ordering Information for a complete list of part numbers. The modules significantly reduce design complexity, manufacturing risks, and offer a true plug-and-play power supply solution, reducing time to market.

The modules employ peak current mode control architecture for step-down converters. To reduce input inrush current, the modules offer a fixed soft-start of 5.1ms (typ) for the step-down converter and 1.1ms (typ) for the linear regulator.

The modules are available in a low profile, compact 10-pin (2.6mm x 3mm x 1.5mm) uSLIC package.

Applications

* Industrial Sensors * Programmable Logic Controller * Battery-Powered Equipment * HVAC and Building Control * LDO Replacement

* Easy to Use

* Wide 4V to 60V Input Step-Down Converter * Adjustable and Fixed Output Voltage Modules * Internal Inductor and Compensation * Up to 150mA Output Current from a Step-Down Converter * ±1.3% Accuracy for Linear Regulator Output and ±2% FB Accuracy for Step-Down Converter * All Ceramic Capacitors, Compact Layout * Built-In 50mA High-PSRR Linear Voltage Regulator with Different Output Voltage Options

* High Efficiency

* Selectable PWM or PFM Mode Operation * PFM Enables Enhanced Light-Load Efficiency * 2.5µA Shutdown Current * 70µA No-Load Supply Current

* Flexible Design

* Internal Soft-Start and Prebias Startup * 350kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization for Step-DownConverters * Open Drain Power Good Output (Active Low RESET Pin) * Programmable EN/UVLO Threshold

* Robust Operation

* Hiccup Overcurrent Protection * Overtemperature Protection * -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

* Rugged

* Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions * Passes Drop, Shock, and Vibration Standards: JESD22-B103, B104, B111