DESCRIPTION

The MP5026 is a hot-swap protection device designed to protect circuitry on its output from transients on its input. It also protects its input from undesired shorts and transients from its output. The device can achieve up to 20A of continuous output current (IOUT) per device at room temperature.

The MP5026 limits the inrush current to the load when a circuit card is inserted into a live backplane power source. This limits the power supply voltage drop. The MP5026 also limits the internal MOSFET current (IFET) by controlling the gate voltage (VGATE) via a lowpower resistor connected between the ISET pin and ground as well as soft-start ramp.

The MP5026 offers many features to simplify system design, such as an integrated current mirror that monitors IOUT and the integrated ondie temperature sense. This eliminates the need for an external current-sense power resistor, power MOSFET, and temperaturesense device.

The maximum load at the output is currentlimited via sense MOSFET topology. The

current limit is controlled by a low-power resistor connected between ISET and ground.

The MP5026 provides a variety of fault protections, including over-current protection (OCP), short-circuit protection (SCP), overtemperature protection (OTP), damaged MOSFET detection, over-voltage protection (OVP), and under-voltage protection (UVP).

The MP5026 is available in an LGA-26 (4mmx4mm) package.

FEATURES

• 2.7V to 16V Operating Input Voltage (VIN) Range

• Up to 20A Output Current (IOUT)

• 2.8mΩ Integrated Power MOSFET

• ±1% IMON Reporting Accuracy

• Built-In MOSFET Driver

• 3.3V Low-Dropout (LDO) Output

• Built-In Insertion Delay

• Configurable Soft Start (SS)

• Power Good (PG) Indication

• Fault Signal Output (FLTB)

• Integrated Current Sense with Sense Output (IMON)

• Configurable Over-Voltage Protection (OVP) Threshold

• Configurable Over-Current (OC) Limit

• Configurable Over-Current Protection (OCP) Fault Regulation Time

• Output Short-Circuit Protection (SCP)

• Over-Temperature Protection (OTP)

• Latch-Off Protection Mode

• Built-In Fuse Health Detection

• Available in an LGA-26 (4mmx4mm) Package

APPLICATIONS

• Hot Swap

• PC Cards

• Disk Drives

• Servers

• Networking

• Laptops