NXP Semiconductors NX5P2553GVH

Overview

NX5P2553GVH from NXP Semiconductors is a precision adjustable current-limited power switch featuring an N-channel MOSFET with 95 mΩ typical R_ON, programmable current limit (85 mA–1.8 A), and integrated protection including UVLO (2.35 V), overtemperature shutdown (155 °C), and reverse-voltage protection (140 mV threshold). It operates from 2.5 V to 5.5 V and is used in USB port/hub power management to enforce compliance with USB current-limiting requirements.

For engineers reviewing the NX5P2553GVH datasheet, NX5P2553GVH pinout, NX5P2553GVH application, or NX5P2553GVH equivalent, key selection considerations include its adjustable ILIM interface, open-drain FAULT signaling, soft-start behavior for inrush control, and TSOP6 package thermal performance (R_th(j-a) = 133 K/W).

Technical Context

The NX5P2553GVH integrates a charge-pump-driven N-channel MOSFET gate driver with deglitched fault detection (8.7 ms OCP deglitch, 4.4 ms RVP deglitch) and dual-mode thermal shutdown: 155 °C in normal operation and 130 °C during current limiting, with 30 °C and 12 °C hysteresis respectively. Its ILIM pin accepts an external resistor (15 kΩ–232 kΩ) to set I_OCP with ±6 % accuracy at 1.8 A.

Logic-level translation on the EN input enables direct interfacing with 1.3 V–5.5 V controllers; UVLO remains active regardless of EN state, disabling the switch when VIN drops below 2.35 V. Reverse-voltage protection disables conduction when VOUT exceeds VIN by >140 mV, and short-circuit response triggers MOSFET turn-off within 2.0 μs.

Key Specifications

Pinout & Package

Package: TSOP6 (SOT457), plastic surface-mounted, 6-lead, body size 3.1 mm × 2.7 mm × 1.1 mm, thermal pad connected to GND for heat sinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current-limited power switch applications.

Compared with TCK107AG,314 and TPS22945DSGR, the NX5P2553GVH uniquely combines programmable current limiting, reverse-voltage protection, and USB-compliant accuracy in a thermally optimized TSOP6 package - making it optimal for compact, standards-compliant USB power switches where fault coverage and layout simplicity are prioritized.

Availability

NX5P2553GVH is available at Aetrix Electronics and suitable for USB port/hubs, digital TV power domain isolation, and VoIP phone power management requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for NX5P2553GVH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The NX5P2553GVH belongs to NXP's precision power switch product line, designed specifically for USB-compliant, thermally constrained power distribution in space-sensitive consumer electronics.

FAQ

What is the minimum and maximum current limit range supported by the NX5P2553GVH?

The NX5P2553GVH supports an adjustable overcurrent protection threshold from 85 mA to 1.8 A using an external resistor (15 kΩ to 232 kΩ) between ILIM and GND. At R_ILIM = 210 kΩ, I_OCP is 95–180 mA; at R_ILIM = 15 kΩ, I_OCP reaches 1650–1900 mA. The NX5P2553GVH achieves ±6 % accuracy at 1.8 A, ensuring reliable USB compliance.

Does the NX5P2553GVH provide reverse-voltage protection, and how does it behave?

Yes, the NX5P2553GVH includes reverse-voltage protection (RVP) that disables the internal N-channel MOSFET when VOUT exceeds VIN by more than 140 mV (typical), with a 4.4 ms deglitch time to reject noise. Once the reverse condition is removed for the same deglitch period, the device automatically re-enables. This feature eliminates the need for an external blocking diode in NX5P2553GVH-based designs.

What is the thermal performance of the NX5P2553GVH in its TSOP6 package?

The NX5P2553GVH in TSOP6 (SOT457) has a junction-to-ambient thermal resistance (R_th(j-a)) of 133 K/W under standard two-layer PCB conditions. Its thermal pad must be soldered to a GND plane for effective heat dissipation. Overtemperature protection triggers at 155 °C (normal mode) or 130 °C (current-limit mode), with automatic recovery at 125 °C or 118 °C respectively - ensuring robust operation in NX5P2553GVH-powered systems.

How does the NX5P2553GVH handle short-circuit events, and what is its response time?

Upon detecting a short circuit (I_SW > 4 × I_OCP), the NX5P2553GVH disables the MOSFET within 2.0 μs (typical), limiting fault energy. After a 5–12 ms deglitch window, the FAULT pin asserts LOW. The device then cycles into constant-current mode at I_OCP and reasserts FAULT after deglitching. This fast, deterministic behavior protects both the NX5P2553GVH and downstream circuitry during transient faults.

Can the NX5P2553GVH be used with low-voltage microcontrollers, and what logic levels does it accept?

Yes, the NX5P2553GVH features integrated logic-level translation on its EN pin, accepting input voltages from 1.3 V (VIH min) to 5.5 V. This allows direct interfacing with 1.8 V, 2.5 V, or 3.3 V microcontrollers without external level shifters. When EN is LOW, the device enters low-power mode (<1 μA quiescent current) and disables all protection circuits - a key feature for battery-powered NX5P2553GVH applications.