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MAX17548ATJ+ MAX17548EVKIT# MAX17548 有現貨 可添加我們聯系方式獲取最優惠價格

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The MAX17548 is a dual-output, synchronous step-down controller that drives nMOSFETs.

The device features a peak-current-mode, constantfrequency architecture, allowing it to operate up to 2.2MHz. The device can be configured as two singlephase, independent 10A power supplies or as a dualphase, single-output 20A power supply. The device also provides the ability to run two controllers 180° out-of-phase to reduce the power loss and noise due to the input-capacitor ESR.

The IC supports current sensing using either an external current-sense resistor for accuracy or an inductor DCR for improved system efficiency. Current foldback limits MOSFET power dissipation under short-circuit conditions.

The IC provides independent adjustable soft-start for each output and can start up monotonically into a prebiased 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, 32-pin TQFN, 5mm x 5mm package with an exposed pad.

Wide Range of Operation

Wide 4.5V to 42V Input Voltage Range

Wide 0.8V to 24V Output Voltage Range

RSENSEor Inductor DCR Current Sensing

Selectable In-Phase or 180° Out-of-Phase Operation

Adjustable 100kHz to 2.2MHz Switching Frequency

Independent Enable and PGOOD

Available in a Lead(Pb)-Free 32-Pin, 5mm x 5mm TQFN-EP Package

Enhances Power Efficiency

Low-Impedance Gate Drives for High Efficiency

DCM Operation at Light Loads

Auxiliary Bootstrap LDO

Operates Reliably in Adverse Industrial Environments

Independent Adjustable Soft-Start or Tracking

Current Foldback Limits MOSFET Heat Dissipation During a Short-Circuit Condition

Operates Over the -40°C to +125°C Temperature Range

Output Overvoltage and Overtemperature Protections

電腦數控

DC動力系統分配

工業電源

運動控制

可編程邏輯控制器