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NXP Semiconductors MFS5600AMMA7ESR2
- Part No.:
- MFS5600AMMA7ESR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MFS5600AMMA7ESR2.pdf
- Description:
- DUAL 36V AUTOMOTIVE DC-DC CONTRO
- Quantity:
- Payment:
- Shipping:
Inventory:4,209
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Product details
Overview
MFS5600AMMA7ES from NXP Semiconductors is a QM-grade automotive dual-buck power management IC integrating a 3.3 V/450 kHz internal-FET buck regulator (SW1) and a 5.0 V/450 kHz external-FET buck controller (SW2), ±2% output accuracy, AEC-Q100 Grade-1 qualification, and operation from –40 °C to 150 °C junction temperature - deployed in infotainment and telematics power rails.
For engineers reviewing the MFS5600AMMA7ES datasheet, MFS5600AMMA7ES pinout, MFS5600AMMA7ES application, or MFS5600AMMA7ES equivalent, this page delivers verified functional safety architecture, OTP-configured voltage/frequency settings, QFN32 thermal performance data, and validated alternative options for automotive power system design.
Technical Context
The MFS5600AMMA7ES implements two independent buck topologies: SW1 uses peak-current-mode control with integrated high- and low-side FETs (RDS(on) = 105 mΩ / 46 mΩ), internal compensation, and programmable soft-start (337–2700 µs); SW2 employs external MOSFET drive (900 mA gate drive) with differential current sensing (SW2CSP/SW2CSN), adjustable frequency (250 kHz–3 MHz), and external loop compensation (SW2COMP).
As a QM variant, it omits windowed watchdog timer, FS0B fail-safe output, VMON1–VMON2 inputs, and LBIST - retaining I²C interface (SCL/SDA), three GPIOs (GPIO1/VDDOTP, VMON4/GPIO3, VMON3/GPIO2), dual PGOOD outputs, and ERRMON/FCCU monitoring capability via shared pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | SW1: 3.3 V fixed, 450 kHz, 3 A+ integrated-FET buck; SW2: 5.0 V fixed, 450 kHz, external-FET controller up to 15 A |
| Input Voltage Range | 2.7 V to 36 V (with BIAS_IN); 4.4 V to 36 V (without BIAS_IN) - supports cold-crank and load-dump conditions |
| Accuracy & Stability | ±2 % output voltage accuracy (PWM mode); ±3 % in dropout; 5 mV monitoring hysteresis; 40 µs debounce |
| Thermal Rating | –40 °C to 150 °C operating junction temperature; RθJA = 29.4 °C/W (2s6p board) |
| Quiescent Current | 16 µA typical (ULPM, both regulators in PFM, BIAS_IN = 5 V); 7.5 µA shutdown current |
| Safety Compliance | AEC-Q100 Grade-1 qualified; QM functional safety level - no Challenger Watchdog, LBIST, or FS0B output |
| Package | 32-pin 5 mm × 5 mm WF-QFN (SOT617-24(SC)) with exposed thermal pad |
Pinout & Package
Package: 32-Ld 5 mm × 5 mm WF-QFN (SOT617-24(SC)), thermally enhanced with EPAD ground connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 32) | Main supply input | Connects directly to reverse-protected automotive battery (–0.3 V to 40 V rating); powers internal logic and bias circuitry |
| SW1IN (Pins 18,19) | SW1 power input | Bypassed with ≥10 µF capacitor; feeds integrated FETs of 3.3 V regulator; tied to VIN in standard configuration |
| SW1FB (Pin 25) | SW1 feedback node | Direct connection to 3.3 V output (internal resistor divider enabled per OTP); sets regulation point with ±2 % accuracy |
| SW2FB (Pin 6) | SW2 feedback node | Direct connection to 5.0 V output (internal divider); enables precise regulation without external resistors |
| EN1 (Pin 23), EN2 (Pin 22) | Regulator enable inputs | Active-high TTL-compatible enables; rising threshold 1.4 V; used for sequencing and fault recovery |
| PGOOD1/PGOOD2 (Pins 26,27) | Power-good status outputs | Open-drain signals indicating valid SW1/SW2 output voltage; pulled up externally to VDDIO (1.8 V/3.3 V) |
| SCL/SDA (Pins 2,3) | I²C interface | Configurable for OTP programming, register read/write, and real-time monitoring; requires VDDIO pull-up |
| VMON4/GPIO3 & VMON3/GPIO2 (Pins 13,14) | Multi-function I/O | GPIO-only in QM version (MFS5600AMMA7ES); not configurable as voltage monitors - unlike ASIL B variants |
Key Features
| Feature | Design Value |
|---|---|
| Dual-output topology | Simultaneous 3.3 V/5.0 V generation eliminates need for secondary LDOs in domain controllers and ADAS ECUs |
| OTP-configurable operation | Fixed 450 kHz switching, 3.3 V/5.0 V outputs, and PFM/PWM mode pre-programmed - no runtime I²C writes required |
| Automotive thermal robustness | Rated for 150 °C junction temperature with 29.4 °C/W thermal resistance - enables under-hood deployment without derating |
| Low-quiescent-power PFM mode | 16 µA typical Iq in ULPM with both regulators active - extends battery life during vehicle sleep modes |
| Integrated protection suite | Cycle-by-cycle current limit, thermal shutdown, input UV/OV detection, and soft-start (337–2700 µs) prevent inrush and fault propagation |
Applications
| Infotainment Power Supply | Telematics Control Unit |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in head-unit systems requiring stable 3.3 V and 5.0 V rails under wide battery transients. IC Role / Device Role / Timing Role: Primary dual-rail DC-DC source with integrated FETs; replaces discrete buck + LDO solutions. Use Value: Eliminates external MOSFETs and compensation components for SW1, reducing BOM count by ≥7 parts versus controller-only alternatives. |
Use Scenario: Supplies cellular modem, GNSS receiver, and CAN transceiver in connected car modules operating across –40 °C to 105 °C ambient. IC Role / Device Role / Timing Role: Dual-output PMIC with AEC-Q100 Grade-1 qualification and 450 kHz fixed-frequency operation for EMI-controlled layout. Use Value: Delivers 3.3 V @ 3 A and 5.0 V @ 15 A with <±2% accuracy - meets stringent voltage tolerance requirements of 4G/5G modems. |
| Radar Sensor Module | Driver Monitoring System |
|
Use Scenario: Provides clean, low-noise 3.3 V supply to MMIC and 5.0 V to FPGA in 77 GHz radar front-ends with strict thermal constraints. IC Role / Device Role / Timing Role: High-efficiency buck regulator with PFM mode enabling <20 µA standby current during radar idle cycles. Use Value: Achieves >92% efficiency at 1 A load (3.3 V rail) and maintains regulation down to 2.7 V input - critical for cold-crank resilience. |
Use Scenario: Powers image sensor, IR illuminator driver, and AI accelerator in cabin-facing DMS cameras with vibration and thermal cycling exposure. IC Role / Device Role / Timing Role: QM-grade power manager with dual PGOOD outputs enabling independent rail health monitoring and safe shutdown. Use Value: Dual open-drain PGOOD signals allow microcontroller to validate both rails before enabling camera subsystem - satisfies ISO 26262 QM diagnostic coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-buck automotive power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MFS5600AMBAFES | ASIL B grade; adds windowed watchdog, FS0B output, VMON1–VMON2, ERRMON/FCCU monitoring, and I²C CRC | Required for ASIL B system-level compliance; supports safety mechanisms like challenger watchdog and fault injection testing | Select when functional safety certification (ISO 26262) mandates hardware-level fault detection beyond QM scope |
| MFS5600AMBAYES | ASIL B grade; 5.0 V/450 kHz SW1 + 3.3 V/450 kHz SW2 output pairing; same safety features as MFS5600AMBAFES | Swapped rail assignment matches designs where primary SoC requires 5.0 V and peripheral logic needs 3.3 V | Choose when rail voltage ordering differs from MFS5600AMMA7ES - avoids redesigning feedback networks or OTP reprogramming |
Compared with MFS5600AMMA7ES, MFS5600AMBAFES enables ASIL B compliance via integrated safety monitors and fail-safe signaling, while MFS5600AMBAYES retains those capabilities but swaps output voltages - making both unsuitable as drop-in replacements without layout or firmware updates.
Availability
MFS5600AMMA7ES is available at Aetrix Electronics and suitable for infotainment, telematics, and radar applications requiring stable component supply, AEC-Q100 qualification, and long-term automotive lifecycle support.
Supply support for MFS5600AMMA7ES 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 automotive-grade power management.
The FS5600 product line was designed specifically for ASIL-capable automotive domain controllers and zonal ECUs - delivering integrated dual-buck regulation, voltage monitoring, and watchdog functionality in a single QFN package.
FAQ
What output voltages and frequencies are factory-programmed in MFS5600AMMA7ES?
MFS5600AMMA7ES is pre-programmed with SW1 set to 3.3 V / 450 kHz and SW2 set to 5.0 V / 450 kHz. These values are stored in one-time-programmable (OTP) memory and cannot be altered in the field. The internal resistor dividers are enabled, so SW1FB and SW2FB connect directly to their respective outputs without external resistors - simplifying layout and ensuring ±2 % accuracy across temperature.
Does MFS5600AMMA7ES include functional safety features like watchdog or voltage monitors?
No. As a QM-grade variant, MFS5600AMMA7ES excludes the windowed watchdog timer, FS0B fail-safe output, and VMON1–VMON2 inputs found in ASIL B versions. It retains ERRMON and FCCU monitoring capability via multiplexed pins but lacks the dedicated safety logic (e.g., Challenger Watchdog, LBIST) required for ASIL B certification - making it suitable only for QM-level automotive subsystems.
What is the maximum load current supported by each regulator in MFS5600AMMA7ES?
MFS5600AMMA7ES supports up to 3 A continuous load on SW1 (integrated-FET 3.3 V regulator) and up to 15 A on SW2 (external-FET 5.0 V controller). SW1's current limit is factory-set to 3.8 A (OTP_SW1_ILIM_SEL = 10), while SW2 relies on external current-sense resistors and compensation tuning - allowing scalable output current based on selected MOSFETs and PCB layout.
Can MFS5600AMMA7ES operate without an external BIAS_IN supply?
Yes. MFS5600AMMA7ES operates with VIN alone when BIAS_IN is unconnected, but minimum VIN rises to 4.4 V (vs. 2.7 V with BIAS_IN applied). This ensures proper startup during cold-crank events. When BIAS_IN = 5 V is supplied, quiescent current drops to 16 µA typical in ULPM mode - optimizing battery drain during vehicle sleep states.
Which package and thermal specifications apply to MFS5600AMMA7ES?
MFS5600AMMA7ES uses the 32-pin 5 mm × 5 mm WF-QFN (SOT617-24(SC)) with exposed thermal pad. Its thermal resistance is 29.4 °C/W (RθJA) on a 2s6p test board, supporting 150 °C maximum junction temperature. The EPAD must be soldered to a solid ground plane with ≥6 thermal vias (0.3 mm diameter) to achieve rated performance - critical for sustained 3 A SW1 operation in enclosed automotive enclosures.
MFS5600AMMA7ESR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Current - Supply:
- 140µA
- Voltage - Supply:
- 2.7V ~ 36V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 32-HVQFN (5x5)
MFS5600AMMA7ESR2 FAQ
1.How can I place an order for MFS5600AMMA7ESR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS5600AMMA7ESR2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MFS5600AMMA7ESR2 reliable?
The price and inventory of MFS5600AMMA7ESR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS5600AMMA7ESR2 is usually 5 days.
3.What payment methods are accepted for MFS5600AMMA7ESR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS5600AMMA7ESR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS5600AMMA7ESR2?
MFS5600AMMA7ESR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS5600AMMA7ESR2 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MFS5600AMMA7ESR2?
For technical support, including MFS5600AMMA7ESR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS5600AMMA7ESR2 requirements.
6.How does Aetrix verify that MFS5600AMMA7ESR2 is sourced from the original manufacturer or authorized distributors?
All MFS5600AMMA7ESR2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MFS5600AMMA7ESR2 meets industry standards.
7.What is the process for return or replacement of MFS5600AMMA7ESR2?
All MFS5600AMMA7ESR2 units undergo pre-shipment inspection (PSI). If there is an issue with MFS5600AMMA7ESR2, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MFS5600AMMA7ESR2 part is unused and in its original packaging.
Return procedure for MFS5600AMMA7ESR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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