My Inquiry
My Account
NXP Semiconductors MC33FS8530A4KSR2
- Part No.:
- MC33FS8530A4KSR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
MC33FS8530A4KSR2.pdf
- Description:
- SAFETY POWER MANAGEMENT IC, QFN5
- Quantity:
- Payment:
- Shipping:
Inventory:3,462
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC33FS8530A4KSR2 from NXP Semiconductors is an ASIL D–compliant automotive fail-safe system basis chip (SBC) integrating three synchronous buck converters (BUCK1/2/3), one boost converter, two LDOs, and comprehensive safety monitoring. It delivers 1.1 V @ 4.5 A (BUCK1), 1.8 V @ 4.5 A (BUCK2), 3.3 V @ 4.5 A (BUCK3), 1.8 V @ 400 mA (LDO1), and 1.2 V @ 400 mA (LDO2), with 60 V max input voltage and 10 µA quiescent current in OFF mode. It targets imaging radar systems using NXP S32R MCUs.
For engineers reviewing the MC33FS8530A4KSR2 datasheet, MC33FS8530A4KSR2 pinout, MC33FS8530A4KSR2 application, or MC33FS8530A4KSR2 equivalent, this page provides verified functional specifications, safety architecture details, regulator sequencing behavior, fail-safe output configuration, and validated alternative options for radar power management design.
Technical Context
The MC33FS8530A4KSR2 implements a dual-domain safety architecture with independent monitoring circuitry, including FCCU (Functional Safety Control Unit), ABIST/LBIST, and configurable voltage supervision across six analog inputs (VCOREMON, VDDIOMON, VMON1–VMON4). Its fail-safe state machine asserts FS0B on detected faults and supports deep fail-safe autoretry (infinite cycles).
It features SPI/I2C (0x20 address) programmable regulation with 2.22 MHz switching frequency for BUCK1/2/3, 455 kHz for VPRE controller, and 2.22 MHz for BOOST; includes PSYNC for multi-device synchronization, FSYNC for EMC-optimized frequency alignment, and AMUX for ADC-based parameter readback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ASIL Level | ASIL D compliant per ISO 26262, qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C) |
| Input Voltage Range | 4.9 V to 60 V - supports 12 V/24 V automotive battery rails with reverse-battery protection diodes required on VSUP1/VSUP2 |
| BUCK1 Output | 1.1 V @ 4.5 A peak - dedicated MCU core supply with SVS capability and soft-start slope of 7.81 mV/µs |
| BUCK2 Output | 1.8 V @ 4.5 A peak - enabled, multiphase-capable with BUCK1, starts in Slot 0 during power-up sequencing |
| BUCK3 Output | 3.3 V @ 4.5 A peak - enabled, starts in Slot 0, supports TSD shutdown + DFS response |
| LDO Outputs | LDO1: 1.8 V @ 400 mA; LDO2: 1.2 V @ 400 mA - both support independent voltage monitoring and sequencing in Slot 2/1 respectively |
| Fail-Safe Output | FS0B active-low open-drain output - asserted on critical fault (e.g., overvoltage, thermal shutdown, watchdog timeout) |
Pinout & Package
MC33FS8530A4KSR2 uses HVQFN56 package (8 mm × 8 mm × 0.85 mm, 0.5 mm pitch, wettable flank), thermally enhanced with exposed pad (EP) connected to GNDFS/GND.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | WAKE2 | Wake-up input 2 - accepts external wake signal; requires series resistor if used as global wake pin |
| 7 | BUCK3_SW | BUCK3 switching node - connects to external low-side MOSFET drain and inductor |
| 14 | FS0B | Fail-safe output 0 - active-low open-drain driver; pulls low on safety-critical fault detection |
| 17 | VCOREMON | MCU core voltage monitor input - must be connected directly to BUCK1 output for SVS function |
| 37 | BUCK1_SW | BUCK1 switching node - high-frequency node driving external high-/low-side MOSFETs in VPRE controller stage |
| 44 | PRE_SW | VPRE switching node - connects to external high-side MOSFET source and bootstrap network |
| 54 | LDO2 | LDO2 regulated output - supplies 1.2 V @ 400 mA to MCU I/O or peripheral logic; sequenced in Slot 1 |
| 55 | LDO1 | LDO1 regulated output - supplies 1.8 V @ 400 mA to ADC reference or analog subsystem; sequenced in Slot 2 |
| 57 | EP | Exposed thermal pad - electrically tied to GNDFS/GND; mandatory PCB thermal via connection for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Triple synchronous buck regulators | BUCK1/2/3 deliver up to 4.5 A each at 2.22 MHz; BUCK2 supports multiphase operation with BUCK1 for 7.2 A peak rail |
| Fail-safe state machine | Dedicated hardware FSM monitors all regulators, temperature, and communication; asserts FS0B within <250 µs on fault |
| Configurable power sequencing | Eight-slot sequencing engine assigns start/stop timing per regulator (e.g., BUCK1 in Slot 6, LDO2 in Slot 1) |
| EMC optimization | FSYNC input/output, spread spectrum, slew rate control, and manual frequency tuning reduce radiated emissions |
| OTP-programmable configuration | Factory-programmed OTP sets VPRE slope compensation (70 mV/µs), current limit (150 mV), and phase delay (0) |
| Safety-certified interfaces | SPI/I2C with CRC, dual FCCU inputs (FCCU1/FCCU2), ERRMON, and AMUX for diagnostic data readback |
Applications
| Imaging Radar Power Management | Radar Domain Controller Supply |
|---|---|
|
Use Scenario: Powers NXP S32R294 MCU and TEF810x RF transceiver in 77 GHz imaging radar modules. IC Role / Device Role / Timing Role: Primary SBC providing core (1.1 V), I/O (1.8 V), and sensor bias (3.3 V) rails with synchronized startup and fail-safe assertion. Use Value: Enables ASIL D compliance via integrated FCCU, ABIST, and infinite-retry fail-safe output - eliminating need for external safety monitor. |
Use Scenario: Supplies domain controller ECU integrating multiple radar sensors and CAN FD gateway functionality. IC Role / Device Role / Timing Role: Centralized power hub delivering regulated voltages to MCU, FPGA, PHY, and CAN transceivers with coordinated sequencing. Use Value: Reduces BOM count by consolidating six regulators and safety logic into single HVQFN56 package with PSYNC for multi-chip synchronization. |
| Automotive Camera System | ADAS Sensor Fusion Module |
|
Use Scenario: Powers S32V234 vision processor and image sensor in front-facing mono/stereo camera units. IC Role / Device Role / Timing Role: Provides 1.03125 V core, 1.8 V I/O, and 3.3 V sensor bias with soft-start slope (7.81 mV/µs) to prevent inrush-induced brownout. Use Value: Achieves <10 µA OFF-mode quiescent current - meeting automotive "always-on" wake-up requirements without battery drain. |
Use Scenario: Integrates power for radar, camera, and ultrasonic sensors in centralized ADAS fusion ECU. IC Role / Device Role / Timing Role: Manages eight independent voltage domains with VMON1–VMON4 monitoring and PGOOD/RSTB coordination. Use Value: Supports functional safety decomposition by assigning distinct safety channels (e.g., VCOREMON + FCCU) to separate sensor subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fail-safe SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33FS8530A0KSR2 | Non-programmed OTP; default VPRE = 3.3 V, BUCK1 = 1.35 V, no pre-configured safety thresholds | Requires full OTP programming for radar use; lacks factory-tuned 1.1 V/4.5 A BUCK1 and 3.3 V/4.5 A BUCK3 settings | Select when custom OTP configuration is needed early in development; not suitable for drop-in radar deployment. |
| MC33FS8520A0KSR2 | Omits BUCK3; only supports BUCK1 + BUCK2 + BOOST + dual LDOs; ASIL D certified but reduced rail count | Insufficient for imaging radar requiring dedicated 3.3 V sensor bias rail; cannot replace MC33FS8530A4KSR2 in 3-rail designs | Choose for domain controllers needing only two low-voltage rails plus boost, where BUCK3 is unused. |
Compared with MC33FS8530A0KSR2 and MC33FS8520A0KSR2, the MC33FS8530A4KSR2 delivers factory-validated 1.1 V/4.5 A core and 3.3 V/4.5 A sensor rails with optimized slope compensation (70 mV/µs) and infinite-deep fail-safe recovery - enabling immediate integration into S32R-based radar without OTP reprogramming or layout changes.
Availability
MC33FS8530A4KSR2 is available at Aetrix Electronics and suitable for imaging radar, ADAS domain controllers, and automotive vision systems requiring stable component supply, long-term automotive qualification, and ASIL D safety certification.
Supply support for MC33FS8530A4KSR2 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 applications, with deep expertise in functional safety and automotive-grade power management.
The FS85 family, including MC33FS8530A4KSR2, was designed specifically for ASIL D–compliant radar and ADAS domain controllers, integrating safety monitoring, multi-rail power conversion, and EMC-optimized clocking in a single HVQFN56 package.
FAQ
What is the primary safety certification level of the MC33FS8530A4KSR2?
The MC33FS8530A4KSR2 is ASIL D–compliant per ISO 26262 and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C). Its safety architecture includes FCCU, ABIST/LBIST, dual watchdog modes, and independent voltage supervision across six analog inputs - all verified in the FS85C product data sheet Rev. 12.0.
Which output rails are enabled and configured in the MC33FS8530A4KSR2 by default?
The MC33FS8530A4KSR2 has BUCK1 (1.1 V @ 4.5 A), BUCK2 (1.8 V @ 4.5 A), BUCK3 (3.3 V @ 4.5 A), LDO1 (1.8 V @ 400 mA), and LDO2 (1.2 V @ 400 mA) all factory-enabled and sequenced in Slots 6, 0, 0, 2, and 1 respectively - matching the imaging radar reference design for S32R MCUs.
Does the MC33FS8530A4KSR2 support frequency synchronization with external devices?
Yes, the MC33FS8530A4KSR2 supports bidirectional frequency synchronization via FIN (input) and FOUT (output) pins, and also includes PSYNC for power synchronization between two FS85 devices or with an external PMIC - enabling system-level EMC optimization and deterministic switching behavior.
What is the role of the FS0B pin on the MC33FS8530A4KSR2?
The FS0B pin on the MC33FS8530A4KSR2 is an active-low, open-drain fail-safe output that asserts within 250 µs upon detection of critical faults such as overvoltage, thermal shutdown, or watchdog timeout. It is electrically isolated and driven by the dedicated fail-safe state machine - not software-controllable.
How does the MC33FS8530A4KSR2 handle thermal shutdown events across its regulators?
On thermal shutdown (TSD), the MC33FS8530A4KSR2 disables BUCK1, BUCK2, BUCK3, LDO1, and LDO2 individually while asserting DFS (Deep Fail-Safe) and FS0B. Recovery is infinite-cycle autoretry - regulators restart after cooldown unless persistent fault condition remains, ensuring robust fault containment.
MC33FS8530A4KSR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- System Basis Chip
- Current - Supply:
- 15mA
- Voltage - Supply:
- 60V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 56-HVQFN (8x8)
MC33FS8530A4KSR2 FAQ
1.How can I place an order for MC33FS8530A4KSR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33FS8530A4KSR2 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 MC33FS8530A4KSR2 reliable?
The price and inventory of MC33FS8530A4KSR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33FS8530A4KSR2 is usually 5 days.
3.What payment methods are accepted for MC33FS8530A4KSR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33FS8530A4KSR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33FS8530A4KSR2?
MC33FS8530A4KSR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33FS8530A4KSR2 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 MC33FS8530A4KSR2?
For technical support, including MC33FS8530A4KSR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33FS8530A4KSR2 requirements.
6.How does Aetrix verify that MC33FS8530A4KSR2 is sourced from the original manufacturer or authorized distributors?
All MC33FS8530A4KSR2 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 MC33FS8530A4KSR2 meets industry standards.
7.What is the process for return or replacement of MC33FS8530A4KSR2?
All MC33FS8530A4KSR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33FS8530A4KSR2, 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 MC33FS8530A4KSR2 part is unused and in its original packaging.
Return procedure for MC33FS8530A4KSR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC33FS8530A4KSR2 Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
