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NXP Semiconductors MFS5600AMBA0ESR2
- Part No.:
- MFS5600AMBA0ESR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MFS5600AMBA0ESR2.pdf
- Description:
- DUAL 36V AUTOMOTIVE DC-DC CONTRO
- Quantity:
- Payment:
- Shipping:
Inventory:1,464
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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 independent voltage monitors, windowed watchdog timer, ERRMON/FCCU monitoring, ABIST, and PGOOD outputs. It operates from 4.4 V to 36 V input, delivers ±2 % output accuracy, and supports 250 kHz–3 MHz switching across ASIL B safety-critical ADAS and infotainment systems.
For engineers reviewing the MFS5600AMBA0ES datasheet, MFS5600AMBA0ES pinout, MFS5600AMBA0ES application, or MFS5600AMBA0ES equivalent, this device requires attention to OTP-configurable SW1 output voltage (1.8–8.0 V), SW2 gate drive capability (900 mA), thermal derating above 125 °C ambient, and ASIL B–specific pin functions including VMON1–VMON4, FS0B, and Challenger Watchdog enablement.
Technical Context
The MFS5600AMBA0ES implements two independent regulation paths: SW1 uses peak-current-mode control with integrated high- and low-side MOSFETs (RDS(on) = 105 mΩ / 46 mΩ), while SW2 employs external FETs driven by dedicated high- and low-side gate outputs (SW2GHS/SW2GLS) and current-sense inputs (SW2CSP/SW2CSN). Both regulators support programmable soft-start, PFM/PWM mode selection via MODE/SYNCIN, and frequency tuning.
Safety architecture includes dual PGOOD outputs, open-drain FS0B fail-safe signal, four configurable voltage monitor inputs (VMON1–VMON4), and functional monitoring of I/O via ERRMON and FCCU interfaces. ABIST is enabled; LBIST is excluded per ASIL B variant specification - distinguishing it from Enhanced ASIL B versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.4 V to 36 V (enables direct connection to reverse-protected automotive battery; VIN < 4.4 V disables operation when BIAS_IN = 0 V) |
| SW1 Output Capability | Up to 3 A continuous load, 3.5 A peak; ±2 % accuracy in PWM mode; 1.8 V–8.0 V OTP-programmable output |
| SW2 Controller Drive | 900 mA gate drive; supports up to 15 A load with external FETs; 1.8 V–7.2 V output range |
| Switching Frequency | 250 kHz to 3 MHz (OTP-selectable; enables EMI optimization and inductor size reduction) |
| Safety Features | Windowed watchdog timer, ABIST, two PGOOD outputs, FS0B fail-safe signal, ERRMON/FCCU monitoring |
| Operating Temperature | –40 °C to 150 °C junction; AEC-Q100 Grade-1 qualified for under-hood automotive use |
| Package | 32-pin 5 mm × 5 mm WF-QFN (SOT617-24(SC)); EPAD grounded for thermal dissipation |
Pinout & Package
Package: 32-lead 5 mm × 5 mm WF-QFN (SOT617-24(SC)) with exposed thermal pad (EPAD) requiring grounding via multiple vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 32) | Main supply input | Connects directly to reverse-protected battery rail; powers internal logic and bias circuitry |
| SW1IN (Pins 18,19) | SW1 power input | Bypassed with ≥10 µF capacitor; feeds integrated FETs of SW1 buck regulator |
| SW1FB (Pin 25) | SW1 feedback input | Accepts internal or external resistor divider; sets regulated output voltage (1.8–8.0 V) |
| EN1 (Pin 23) | SW1 enable input | Active-high TTL-compatible input; rising threshold = 1.4 V; controls startup sequencing |
| VMON1/VMON2 (Pins 16,15) | Voltage monitor inputs | ASIL B–specific analog inputs for monitoring external rail voltages; require external resistive dividers |
| VMON3/GPIO2 & VMON4/GPIO3 (Pins 14,13) | Configurable I/O | GPIOs that can be reconfigured as voltage monitor inputs via OTP programming |
| FS0B (Pin 24) | Fail-safe output | Open-drain signal asserted during fault conditions (e.g., watchdog timeout, voltage violation) |
| PGOOD1/PGOOD2 (Pins 26,27) | Power-good indicators | Open-drain outputs indicating valid regulation status of monitored rails; require pull-up resistors |
| I²C Interface (Pins 1,2,3) | Configuration & telemetry | VDDIO-referenced SCL/SDA; supports CRC-protected register access for real-time monitoring |
| SW2GHS/SW2GLS (Pins 11,9) | SW2 gate drivers | High- and low-side MOSFET gate outputs; require bootstrap capacitor (SW2BOOT–SW2LX) |
Key Features
| Feature | Design Value |
|---|---|
| Dual-regulator architecture | Combines 3 A integrated-FET buck (SW1) and 15 A external-FET controller (SW2) on single die for compact multi-rail power delivery |
| ASIL B functional safety compliance | Includes windowed watchdog, ABIST, ERRMON/FCCU monitoring, dual PGOOD, and FS0B - certified per ISO 26262 requirements |
| OTP-configurable operation | Enables field-programmable settings including SW1 output voltage, soft-start time, current limit, PFM on-time, and mode selection |
| Wide-input, high-temp operation | Operates from 4.4 V to 36 V input and –40 °C to 150 °C junction temperature - suitable for engine bay and ADAS ECU environments |
| Low-quiescent-current PFM mode | Delivers ≤12.5 µA quiescent current (SW1 active, SW2 disabled) in ULPM mode - extends battery life in always-on vehicle subsystems |
Applications
| Infotainment Power Supply | ADAS Domain Controller |
|---|---|
|
Use Scenario: Powers SoC, display interface, audio codec, and USB peripherals in automotive head units and digital clusters. IC Role / Device Role / Timing Role: Primary multi-rail PMIC delivering 1.8 V, 3.3 V, and 5 V from 12 V battery; manages sequencing and fault reporting. Use Value: Reduces BOM count by integrating two regulators and safety monitors; eliminates need for discrete voltage supervisors and watchdog ICs. |
Use Scenario: Supplies vision processor, radar SoC, and sensor interface in centralized ADAS domain controllers. IC Role / Device Role / Timing Role: Regulates core logic (1.2 V LDO-fed), I/O (3.3 V), and analog (5 V) rails while providing ASIL B–compliant fault detection and fail-safe signaling. Use Value: Enables single-chip power + safety solution meeting ISO 26262 ASIL B decomposition requirements without external safety monitors. |
| Radar Module Power | V2X Communication Unit |
|
Use Scenario: Powers RF transceiver, DSP, and memory in 77 GHz automotive radar modules. IC Role / Device Role / Timing Role: Delivers stable 1.8 V and 3.3 V supplies with tight ripple control; monitors supply integrity via VMON inputs and reports faults via FS0B. Use Value: Maintains RF performance under load-dump transients (up to 36 V); PFM mode sustains ultra-low sleep current during idle periods. |
Use Scenario: Provides regulated power to DSRC/WAVE or C-V2X modems, GNSS receivers, and secure elements in telematics control units. IC Role / Device Role / Timing Role: Generates isolated 3.3 V and 5 V rails; uses I²C interface for runtime telemetry and dynamic voltage scaling coordination with host MCU. Use Value: Supports OTA firmware updates with ABIST-enabled self-test before critical boot phases; FS0B triggers safe shutdown on detected anomalies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive buck regulator and controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4332-AEC1 | Single 3.5 A integrated buck; no external-FET controller; no voltage monitors or watchdog; QM only | Lacks functional safety features and dual-regulator flexibility; suitable for non-safety-critical sub-systems | Select when ASIL B compliance and multi-rail supervision are unnecessary and cost sensitivity dominates |
| TPS65381A-Q1 | Dual 3 A integrated bucks; includes watchdog and voltage monitors but no external-FET controller; supports ASIL B | Cannot drive >3 A loads externally; lacks SW2's 15 A scalability; different pinout and OTP structure | Choose when system load stays within 3 A per rail and board space constraints favor smaller package |
Compared with MPQ4332-AEC1 and TPS65381A-Q1, the MFS5600AMBA0ES uniquely combines ASIL B–certified dual regulation (integrated + controller), four voltage monitors, and fail-safe signaling in one QFN package - enabling scalable, safety-compliant power architectures without external supervision ICs.
Availability
MFS5600AMBA0ES is available at Aetrix Electronics and suitable for automotive infotainment, ADAS domain controllers, and radar modules requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade-1 qualification.
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 focused on automotive, industrial, IoT, and communication infrastructure solutions, with deep expertise in functional safety and automotive-grade power management.
The MFS5600AMBA0ES belongs to NXP's FS family of automotive power management ICs, designed specifically to consolidate multi-rail DC-DC conversion, voltage supervision, and ISO 26262–aligned safety mechanisms into single-chip solutions for next-generation E/E architectures.
FAQ
What safety grade does the MFS5600AMBA0ES support?
The MFS5600AMBA0ES is qualified for ASIL B functional safety per ISO 26262. It includes a windowed watchdog timer, ABIST, ERRMON and FCCU monitoring, dual PGOOD outputs, and FS0B fail-safe signaling - all verified for ASIL B compliance. Unlike the Enhanced ASIL B variant, it does not include LBIST or Challenger Watchdog functionality.
Can the MFS5600AMBA0ES drive external MOSFETs for high-current loads?
Yes, the MFS5600AMBA0ES integrates a dedicated buck controller (SW2) with 900 mA high- and low-side gate drivers (SW2GHS/SW2GLS), current-sense inputs (SW2CSP/SW2CSN), and compensation pin (SW2COMP) - enabling robust control of external FETs for up to 15 A output current in automotive applications.
How is the SW1 output voltage configured on the MFS5600AMBA0ES?
The SW1 output voltage on the MFS5600AMBA0ES is set via OTP programming using OTP_SW1_VOLT[7:0]. It supports 1.8 V–8.0 V in 50 mV steps with internal resistor divider (OTP_SW1_VOLT[7] = 0b0) or external divider (OTP_SW1_VOLT[7] = 0b1). The SW1FB pin connects directly to output or to the divider midpoint accordingly.
Does the MFS5600AMBA0ES support I²C configuration and telemetry?
Yes, the MFS5600AMBA0ES provides full I²C interface (SCL/SDA pins) with CRC-protected register access. Engineers can read real-time status (PGOOD, fault flags), configure OTP parameters (soft-start, current limit), and monitor voltage monitor results - all without requiring additional microcontroller GPIO resources.
What is the thermal rating and package type of the MFS5600AMBA0ES?
The MFS5600AMBA0ES uses a 32-pin 5 mm × 5 mm WF-QFN (SOT617-24(SC)) with exposed thermal pad. Its operating junction temperature spans –40 °C to 150 °C, and its RθJA is 29.4 °C/W (customized 2s6p layout), enabling reliable operation in under-hood automotive environments with appropriate PCB copper and thermal vias.
MFS5600AMBA0ESR2 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)
MFS5600AMBA0ESR2 FAQ
1.How can I place an order for MFS5600AMBA0ESR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MFS5600AMBA0ESR2 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 MFS5600AMBA0ESR2 reliable?
The price and inventory of MFS5600AMBA0ESR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MFS5600AMBA0ESR2 is usually 5 days.
3.What payment methods are accepted for MFS5600AMBA0ESR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MFS5600AMBA0ESR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MFS5600AMBA0ESR2?
MFS5600AMBA0ESR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MFS5600AMBA0ESR2 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 MFS5600AMBA0ESR2?
For technical support, including MFS5600AMBA0ESR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MFS5600AMBA0ESR2 requirements.
6.How does Aetrix verify that MFS5600AMBA0ESR2 is sourced from the original manufacturer or authorized distributors?
All MFS5600AMBA0ESR2 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 MFS5600AMBA0ESR2 meets industry standards.
7.What is the process for return or replacement of MFS5600AMBA0ESR2?
All MFS5600AMBA0ESR2 units undergo pre-shipment inspection (PSI). If there is an issue with MFS5600AMBA0ESR2, 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 MFS5600AMBA0ESR2 part is unused and in its original packaging.
Return procedure for MFS5600AMBA0ESR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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