NXP Semiconductors MFS5600AVMA0EP

Overview

MFS5600AVMA0EP from NXP Semiconductors is a QM-grade automotive-qualified dual-output power management IC integrating a 3 A internal-FET buck regulator (SW1) and a high-current external-FET buck controller (SW2), with ±2 % output accuracy, 250 kHz–3 MHz programmable switching frequency, and operation from –40 °C to 105 °C ambient for industrial applications. It delivers stable 5 V/450 kHz output on SW1 and 5 V/450 kHz on SW2 per its OTP configuration, targeting power sequencing in infotainment and telematics subsystems.

For engineers reviewing the MFS5600AVMA0EP datasheet, MFS5600AVMA0EP pinout, MFS5600AVMA0EP application, or MFS5600AVMA0EP equivalent, key selection criteria include its QM safety grade, absence of windowed watchdog timer and external voltage monitors (VMON1–VMON4), 32-pin SOT617-24(SC) QFN package, and support for I²C configuration and GPIO-based system sequencing - all critical for industrial embedded power rail design.

Technical Context

The MFS5600AVMA0EP implements two independent synchronous buck topologies: SW1 uses integrated high-side/low-side MOSFETs (R_DS(on) = 105 mΩ / 46 mΩ) with peak current-mode control and programmable soft-start (337–4000 µs), while SW2 provides gate drivers (900 mA) for external FETs with differential current sensing (SW2CSP/SW2CSN) and compensation (SW2COMP). Both regulators support PFM/PWM mode selection via MODE/SYNCIN or OTP.

It features dedicated feedback paths (SW1FB, SW2FB), dual open-drain PGOOD outputs, thermal shutdown, and I²C interface (SCL/SDA) with VDDIO at 1.8 V or 3.3 V. The device lacks functional safety peripherals present in ASIL B variants - no windowed watchdog, no FS0B, no ERRMON/FCCU monitoring, and no ABIST/LBIST - confirming its QM classification for non-safety-critical industrial use.

Key Specifications

Pinout & Package

Package: 32-pin SOT617-24(SC), 5 mm × 5 mm wettable flank QFN with exposed thermal pad (EPAD). Pinout follows the QM version (Figure 5), where VMON1/VMON2/VMON3/VMON4 and FS0B are not implemented and must be grounded; GPIO1/VDDOTP serves as general-purpose output only.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-buck power management applications.

Compared with MPQ4333-AEC1 and TPS65381A-Q1, the MFS5600AVMA0EP uniquely balances dual-output flexibility, I²C programmability, and QM-grade industrial qualification - offering optimal BOM efficiency for non-safety-critical 5 V/5 V or 5 V/3.3 V power trees without over-engineering.

Availability

MFS5600AVMA0EP is available at Aetrix Electronics and suitable for industrial gateways, telematics control units, and radar signal processors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MFS5600AVMA0EP 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and power management ICs.

The FS5600 product line was designed to deliver scalable, safety-aware power architectures for next-generation ADAS, infotainment, and vehicle-to-everything (V2X) systems - with MFS5600AVMA0EP serving the industrial segment through QM qualification and simplified feature set.

FAQ

What safety grade does the MFS5600AVMA0EP support?

The MFS5600AVMA0EP is a QM (Quality Management) grade device, meaning it contains no functional safety mechanisms such as windowed watchdog timer, external voltage monitors (VMON1–VMON4), FS0B fail-safe output, or ABIST/LBIST. It is intended for non-safety-critical industrial applications where ASIL compliance is not required. Its OTP configuration and pinout match the QM variant defined in NXP's FS5600 datasheet Rev. 4.2.

What are the default output voltages and switching frequency of the MFS5600AVMA0EP?

The MFS5600AVMA0EP is factory-programmed with 5 V output on both SW1 and SW2, operating at 450 kHz. This is confirmed by its part number suffix "AVMA0EP", where "A" denotes 5 V SW1, "V" denotes 5 V SW2, and "0" indicates 450 kHz. These values are stored in OTP and cannot be altered without NXP-authorized programming equipment.

Can the MFS5600AVMA0EP be used in automotive applications?

No - the MFS5600AVMA0EP is explicitly designated for industrial target market per Table 2 of the FS5600 datasheet, with operating ambient temperature rated to 105 °C (not 125 °C) and no AEC-Q100 Grade 1 qualification. While it shares the same silicon die as automotive variants, its test screening, documentation, and warranty apply only to industrial use cases such as factory automation and transportation infrastructure.

Does the MFS5600AVMA0EP support external voltage monitoring or functional safety features?

No. As a QM-grade part, the MFS5600AVMA0EP omits all functional safety circuitry: VMON1–VMON4 pins are not connected internally and must be grounded; FS0B is absent; ERRMON and FCCU monitoring are disabled; and ABIST/LBIST self-test logic is excluded. These omissions are intentional and documented in Table 1 (Device Options) of the FS5600 datasheet.

What package and thermal requirements apply to the MFS5600AVMA0EP?

The MFS5600AVMA0EP uses the 32-pin SOT617-24(SC) 5 mm × 5 mm WF-QFN package with exposed EPAD. For reliable thermal performance, the EPAD must be soldered to a solid ground plane with ≥4 thermal vias (0.3 mm diameter, 1 mm depth). Under 2s6p board layout, its junction-to-ambient thermal resistance is 29.4 °C/W, enabling 1.5 W dissipation at 105 °C ambient without forced airflow.