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NXP Semiconductors MFS5600AMBA0ES
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- Part No.:
- MFS5600AMBA0ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MFS5600AMBA0ES.pdf
- Description:
- IC BUCK ASIL B NON-PROG 32-QFN
- Quantity:
- Payment:
- Shipping:
Inventory:236
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Product details
Overview
MFS5600AMBA0ES from NXP Semiconductors is an automotive-grade dual-output power management IC integrating a 3 A internal-FET buck regulator (SW1) and a high-current external-FET buck controller (SW2), with ASIL B functional safety certification, ±2 % output voltage accuracy, and operation across 4.4 V to 36 V input range. It serves as the primary power supply for ADAS domain controllers requiring independent voltage monitoring and watchdog supervision.
For engineers reviewing the MFS5600AMBA0ES datasheet, MFS5600AMBA0ES pinout, MFS5600AMBA0ES application, or MFS5600AMBA0ES equivalent, this device delivers verified ASIL B safety features-including windowed watchdog timer, two PGOOD outputs, FS0B fail-safe signal, four voltage monitors (VMON1–VMON4), and I²C-configurable operation-within a 32-pin 5 mm × 5 mm QFN package rated for –40 °C to 150 °C junction temperature.
Technical Context
The MFS5600AMBA0ES implements two independent switching regulators: SW1 uses peak-current-mode control with integrated high- and low-side MOSFETs (RDS(on) = 105 mΩ / 46 mΩ), while SW2 employs external FETs with differential current sensing (SW2CSP/SW2CSN) and gate drivers supporting up to 15 A load. Both regulators support programmable switching frequency (250 kHz–3 MHz) and selectable PFM/PWM modes via OTP or MODE/SYNCIN pin.
Safety logic includes ERRMON and FCCU interface monitoring, ABIST self-test, and dedicated FS0B open-drain fail-safe output activated on fault detection. Voltage monitoring is implemented across four inputs (VMON1–VMON4), each configurable for over/under-voltage thresholds with 40 µs debounce and 5 mV hysteresis, enabling real-time rail supervision for critical ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.4 V to 36 V - supports full automotive battery range including cold-crank (4.4 V min with no BIAS_IN) and load-dump (36 V max). |
| SW1 Output Capability | Up to 3 A continuous load at 1.8 V–8.0 V - internal FETs eliminate external power stage components for compact, cost-optimized designs. |
| SW2 Output Capability | Up to 15 A load - external FET control enables scalable power delivery with thermal design flexibility. |
| Output Voltage Accuracy | ±2 % in PWM mode - ensures stable core/logic rail regulation under dynamic load and temperature variation. |
| Functional Safety Grade | ASIL B certified - includes windowed watchdog timer, ABIST, ERRMON/FCCU monitoring, and FS0B fail-safe output per ISO 26262. |
| Operating Temperature | –40 °C to 150 °C TJ - qualified for under-hood and radar/sensor ECU placement without derating. |
| Package | 32-pin WF-QFN, 5 mm × 5 mm - thermally enhanced EPAD layout supports >29 °C/W RθJA in 2s6p board configuration. |
Pinout & Package
Package: 32-pin Wettable Flank QFN (SOT617-24(SC)), 5 mm × 5 mm, exposed thermal pad (EPAD) requiring ground connection via multiple vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 32) | Main supply input | Connects directly to reverse-protected automotive battery; powers internal circuitry and VCC regulator. |
| SW1IN (Pins 18,19) | SW1 power input | Bypassed with ≥10 µF capacitor; supplies integrated FETs; supports input up to 40 V absolute max. |
| SW1FB (Pin 25) | SW1 feedback node | Connects to output via internal or external resistor divider; sets regulated voltage (1.8 V–8.0 V) with OTP-programmable gain. |
| EN1 (Pin 23) | SW1 enable input | Active-high logic input; rising threshold 1.4 V; controls soft-start sequence and regulator activation timing. |
| VMON1–VMON4 (Pins 13–16) | Voltage monitor inputs | Four independent analog inputs for rail supervision; each supports over/under-voltage detection with programmable thresholds. |
| FS0B (Pin 24) | Fail-safe output | Open-drain output asserted low on safety fault (e.g., watchdog timeout, VMON violation); requires external pull-up. |
| PGOOD1/PGOOD2 (Pins 26,27) | Power-good status | Open-drain outputs indicating valid SW1/SW2 regulation; used for sequencing and system readiness signaling. |
| I²C Interface (Pins 1,2,3) | Configuration & telemetry | SCL/SDA/VDDIO support register read/write, OTP programming, and real-time fault reporting during operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-regulator architecture | Combines 3 A integrated-buck (SW1) and 15 A external-buck controller (SW2) in single die-reduces BOM count and PCB area vs. discrete solutions. |
| ASIL B functional safety | Includes windowed watchdog timer, ABIST, ERRMON/FCCU monitoring, and FS0B fail-safe output-enables compliance without external safety co-processors. |
| Configurable voltage monitoring | Four VMON inputs support independent over/under-voltage detection with 40 µs debounce and 5 mV hysteresis-validates power rails for microcontrollers and sensors. |
| Thermal robustness | Rated for 150 °C junction temperature and qualified to AEC-Q100 Grade-1-supports deployment in high-ambient environments like radar front-ends. |
| Flexible control interface | I²C + MODE/SYNCIN pin allows OTP-based configuration, frequency tuning, PFM/PWM selection, and soft-start time programming-enables one-part-number reuse across platforms. |
Applications
| ADAS Domain Controller Power | Radar Sensor Module Supply |
|---|---|
|
Use Scenario: Powers SoC, memory, and interface peripherals in centralized ADAS domain controllers requiring multi-rail sequencing and safety-critical supervision. IC Role / Device Role / Timing Role: Primary power management IC delivering 1.2 V (core), 3.3 V (I/O), and 5 V (peripherals) with synchronized startup and fault propagation. Use Value: Eliminates need for three separate regulators and external safety monitors-reducing component count by ≥40% while meeting ASIL B requirements. |
Use Scenario: Supplies RF transceivers, DSPs, and ADCs in 77 GHz automotive radar modules operating in engine bay environments. IC Role / Device Role / Timing Role: Dual-output regulator providing clean, low-noise 1.8 V (analog front-end) and 3.3 V (digital processing) with thermal shutdown at 150 °C. Use Value: Internal FETs and optimized thermal pad reduce solution size by 35% vs. controller+external MOSFET; PFM mode enables <100 µA quiescent current in standby. |
| Infotainment Head Unit Core Supply | V2X Communication Module Power |
|
Use Scenario: Delivers stable 5 V and 3.3 V rails to application processors and display interfaces in automotive infotainment systems with extended temperature operation. IC Role / Device Role / Timing Role: Regulator/controller pair supplying main SoC and auxiliary subsystems with independent PGOOD signaling and I²C telemetry. Use Value: ±2 % output accuracy maintains processor stability across –40 °C to 85 °C ambient; 32-pin QFN simplifies layout vs. legacy multi-chip solutions. |
Use Scenario: Powers DSRC/C-V2X modems and GNSS receivers in telematics control units requiring fast wake-up from ultra-low-power states. IC Role / Device Role / Timing Role: High-efficiency buck regulator (SW1) and controller (SW2) supporting rapid rail ramp-up and precise voltage monitoring for modem reset coordination. Use Value: Windowed watchdog and FS0B output enable deterministic fail-safe response within 10 ms of communication loss-meeting UNECE R155 cybersecurity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 | Single 3.5 A buck regulator; no integrated watchdog, voltage monitors, or I²C interface; AEC-Q100 Grade-1 only. | Lacks functional safety features required for ASIL B systems; suitable only for QM-level infotainment sub-rails. | Select when safety certification is unnecessary and only one regulated rail is needed. |
| TPS65381A-Q1 | Dual-buck PMIC with ASIL B support but fixed 5 V/3.3 V outputs; no programmable voltage, frequency, or VMON capability. | Cannot replace MFS5600AMBA0ES in designs requiring OTP-configurable outputs (e.g., 1.8 V, 2.5 V, 7.2 V) or flexible voltage monitoring. | Select for cost-sensitive QM applications where fixed outputs and minimal configuration suffice. |
Compared with MPQ4436-AEC1 and TPS65381A-Q1, the MFS5600AMBA0ES uniquely combines ASIL B certification, four-programmable voltage monitors, I²C configurability, and dual regulator scalability-making it the only option for next-generation ADAS and radar power architectures requiring both safety and flexibility.
Availability
MFS5600AMBA0ES is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, radar sensor modules, infotainment head units, and V2X communication systems requiring stable component supply with full functional safety traceability.
Supply support for MFS5600AMBA0ES 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 power management.
The FS5600 product line was developed to address the growing demand for integrated, ASIL-certified power management ICs in zonal E/E architectures-enabling consolidation of multiple rails and safety functions into a single, thermally robust package.
FAQ
What safety certifications does the MFS5600AMBA0ES hold?
The MFS5600AMBA0ES is certified to ASIL B per ISO 26262, with built-in safety mechanisms including a windowed watchdog timer, ABIST and ERRMON monitoring, FS0B fail-safe output, and four voltage monitors. It meets AEC-Q100 Grade-1 qualification for automotive use from –40 °C to 150 °C junction temperature. These features are fully documented in the FS5600 safety manual and supported by NXP's FMEDA reports.
How is output voltage configured on the MFS5600AMBA0ES?
Output voltage for SW1 is set via OTP programming using OTP_SW1_VOLT[7:0] bits, supporting 1.8 V to 8.0 V in 50 mV steps with internal resistor divider or external divider options. SW2 output is configured externally via its feedback resistors (SW2FB), with regulation range 1.8 V to 7.2 V. The MFS5600AMBA0ES datasheet Table 10 provides the full OTP code-to-voltage mapping for SW1.
Does the MFS5600AMBA0ES support external clock synchronization?
Yes-the MODE/SYNCIN pin (Pin 31) can be configured via OTP as a synchronization input to align SW1 and SW2 switching frequencies with an external clock source, reducing EMI in noise-sensitive automotive applications. When configured as SYNCIN, it accepts CMOS-level signals up to 3 MHz; when configured as MODE, it selects PFM/PWM operation.
What is the maximum load current supported by each regulator in the MFS5600AMBA0ES?
The MFS5600AMBA0ES supports up to 3 A continuous load on SW1 (integrated FET buck) and up to 15 A on SW2 (external FET buck controller). SW1 current limit is programmable via OTP (1.5 A to 8 A), while SW2 relies on external current-sense resistors and gate drive strength (900 mA peak) to scale with selected MOSFETs.
Can the MFS5600AMBA0ES operate without an external bias supply?
Yes-the MFS5600AMBA0ES operates without BIAS_IN by deriving VCC from VIN; however, minimum VIN rises to 4.4 V in that configuration. With BIAS_IN applied (<5.5 V), VIN can drop to 2.7 V, enabling cold-crank operation. The VCC regulator delivers nominally 4.7 V and powers internal logic, gate drivers, and monitoring circuits regardless of bias source.
MFS5600AMBA0ES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- 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)
MFS5600AMBA0ES FAQ
1.How can I place an order for MFS5600AMBA0ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS5600AMBA0ES 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 MFS5600AMBA0ES reliable?
The price and inventory of MFS5600AMBA0ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS5600AMBA0ES is usually 5 days.
3.What payment methods are accepted for MFS5600AMBA0ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS5600AMBA0ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS5600AMBA0ES?
MFS5600AMBA0ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS5600AMBA0ES 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 MFS5600AMBA0ES?
For technical support, including MFS5600AMBA0ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS5600AMBA0ES requirements.
6.How does Aetrix verify that MFS5600AMBA0ES is sourced from the original manufacturer or authorized distributors?
All MFS5600AMBA0ES 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 MFS5600AMBA0ES meets industry standards.
7.What is the process for return or replacement of MFS5600AMBA0ES?
All MFS5600AMBA0ES units undergo pre-shipment inspection (PSI). If there is an issue with MFS5600AMBA0ES, 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 MFS5600AMBA0ES part is unused and in its original packaging.
Return procedure for MFS5600AMBA0ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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