STMPS2141STR Microcontroller: 40μA,500mA, Pinout and Features

The STMPS2141STR is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. It incorporates 90 mΩ N-channel MOSFET high-side power switches for power distribution. The STMPS2141STR is controlled by a logic enable input.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant current mode. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts the switch off to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until a valid input voltage is present.

STMPS2141STR Symbol

STMPS2141STR Footprint

STMPS2141STR 3D Model

• Low MOSFET On-Resistance: 85mΩ

• Compliant to USB Specifications

• Available 4 Versions of Continuous Load:

0.5A/1.0A/1.5A/2.0A

• Logic Level Enable Pin: Available with

Active-high or Active-low Version

• Operating Voltage Range: 2.7V to 5.5V

• Low Supply Current: 68µA (Typ.)

• Low Shutdown Current: 1.0µA (Max)

• Under-voltage Lockout

• Soft Start-up

• Over-current Protection

• Over Temperature Protection

• Load Short Protection with Fold-back

• No Reverse Current When Power Off

• Deglitched FLAG Output with Open Drain

• With Output Shutdown Pull-low Resistor

STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio, and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology, and its products play a key role in enabling today's convergence trends.