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Products
Power Management
PMICs and SBCs
- 5 V PMIC Solutions
- 12 V, 24 V, and 48 V SBC Solutions
12 V, 24 V, and 48 V SBC Solutions
- FS04
- FS23
- FS24
- FS25
- FS26
- FS27
- FS4500
- FS5502
- FS5600
- FS6500
- FS6600
- FS84
- FS85
- FS86
- MC33689
- MC33742
- MC33789
- MC33889
- MC33904
- MC33907
- MC33908
- MC33910
- MC33911
- MC33912
- MC33989
- MC34903
- MC34904
- MC34905
- MC34FS6407
- MC34FS6408
- MM908E622
- TJA1028
- TJA1128
- UJA1061TW
- UJA1065TW
- UJA1066TW
- UJA1069
- UJA1075ATW
- UJA1076ATW
- UJA1078ATW
- UJA1079ATW
- UJA113xA
- UJA113xHW
- UJA1163ATK
- UJA1163TK
- UJA1164ATK
- UJA1164TK
- UJA1167ATK
- UJA1167TK
- UJA1168ATK
- UJA1168TK
- UJA1169ATK
- UJA1169TK
- VR249X
- VR5500
- VR5510
FS26

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The FS26 family of automotive safety system basis chip (SBC) devices offer multiple power supply options designed to support entry and mid-range safety microcontrollers like the S32K3 series. FS26 devices also enable other microcontrollers targeting automotive electrification such as powertrain, chassis, safety and low-end gateway applications.

The FS26 features multiple switch mode regulators as well as LDO voltage regulators to supply the microcontroller, sensors, peripheral ICs and communication interface. FS26 offers a high-precision voltage reference available to the system and a reference voltage for 2 independent voltage-tracking regulators. In addition, various functionalities are available for system control and diagnostics such as analog multiplexer, GPIOS and selectable wake up events from I/O, long duration timer or SPI communication.

The FS26 is ISO 26262 compliant, covering ASIL B and ASIL D safety integrity levels. It features multiple fail-safe outputs, becoming a full part of a safety-oriented system partitioning, along with the latest on-demand latent fault monitoring.

Data Sheet

Application Notes

Product Details

Block Diagram

FS26 Safety SBC

Get diagram PDF

Features

Power Management

40 V DC maximum input voltage
Handle severe cranking operation (3.2 V battery) due to its BOOST controller
Low Power Off mode with very low sleep current (30 uA typ.)
Low Power Standby mode, VPRE active. LDO1 or LDO2 active selectable via OTP configuration (25 uA typ.)
Multiple switch mode regulators as well as LDO voltage regulators to supply the microcontroller, sensors, peripheral ICs and communication interface

System Solutions

System added value to save space and reduce complexity: LDT, AMUX, Dual Tracker, Vref
Programmable long duration timer (LDT) for system turn-off/wake-up control
Selectable wake-up sources from: WAKE/GPIO pins, LDT or SPI activity

Functional Safety

Scalable portfolio from automotive safety integrity levels ASIL B to ASIL D
Enable latent fault monitoring when system is running: ABIST on-demand
Independent monitoring circuitry
Dedicated interface for microcontroller monitoring
Simple and challenger watchdog function
Safety outputs with latent fault detection mechanism (RSTB, FS0B, FS1B)

Configuration and Enablement

LQFP48 pins with exposed pad for optimized thermal management
Permanent device customization via one-time-programming (OTP) fuse memory
Temporary OTP emulation mode for system development and evaluation
Ready to use S32K3 + FS26 hardware and software

Comparison Table

Part Number	Description	OTP Files and Report	Safety Grade	Package
MFS2613AMDA2AD MFS2613HMDA2AD	S32K3 + FS26 EVB ASIL D S32K3X4EVB-Q257	DA2 Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDA3AD MFS2613HMDA3AD	S32K344 HVBMS Reference design	DA3 Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDA4AD MFS2613HMDA4AD	S32K3 Body Control Module Reference design	DA4 Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDA6AD MFS2613HMDA6AD	S32K344 48 V MC Development platform	DA6 Report, programming and configuration files	ASIL D	HLQFP48
MFS2621AMDABAD MFS2621HMDABAD	AURIX TC38x, TC29x	DAB Report, programming and configuration files	ASIL D	HLQFP48
MFS2613AMDDCAD MFS2613HMDDCAD	FS26 + S32K324 + SAJ1110 + AG55X 5G T-BOX	DDC Report, programming and configuration files	ASIL D	HLQFP48
MFS2633AMDALAD MFS2633HMDALAD	S32K3x8 and S32K396 MCU attach	DAL report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDE4AD MFS2633HMDE4AD	S32K396 Reference design	DE4 report, programming and configuration file	ASIL D	HLQFP48
MFS2613AMDH3AD MFS2613HMDH3AD	S32K344 400 V HVBMS Reference design (No VBST)	DH3 report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAHAD MFS2633HMDAHAD	S32K396 BMS Reference Design	DAH report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAJAD MFS2633HMDAJAD	S32K358 400 V and 800 V HVBMS Reference design	DAJ report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDC3AD MFS2633HMDC3AD	S32K358 400 V and 800 V HVBMS Reference design (wireless)	DC3 report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAKAD MFS2633HMDAKAD	S32K358 400 V and 800 V HVBMS Reference design (No VBST)	DAK report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDADAD MFS2633HMDADAD	RH850UA2x for BMS and ZCU Applications (VCORE = 1.09 V)	DAD report, programming and configuration file	ASIL D	HLQFP48
MFS2623AMDAEAD MFS2623HMDAEAD	RH850C, RH850P or RH850F for EPS, BMS, Motor control and DCDC applications (VCORE = 1.25 V)	DAE report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDAMAD MFS2633HMDAMAD	RH850UA2x for ADAS, Smart cockpit and 3.3 V applications (VCORE = 1.09 V)	DAM report, programming and configuration file	ASIL D	HLQFP48
MFS2613AMDAAAD MFS2613HMDAAAD	S32K3+FS26 14V/48V/HV BMS Reference design ASIL D KITBMS_MTR_EVM	DAA report, programming and configuration file	ASIL D	HLQFP48
MFS2613AMDHKAD MFS2613HMDHKAD	S32K3+FS26 BMS ASIL D	DHK report, programming and configuration file	ASIL D	HLQFP48
MFS2633AMDB2AD MFS2633HMDB2AD	S32K3x8 + FS26 Standby support ASIL D Smart-cockpit	DB2 report, programming and configuration file	ASIL D	HLQFP48
SFS2600AMBEDAD SFS2600HMBEDAD	S32K148 for Infotainment application	BED report, programming and configuration file	ASIL B	HLQFP48
SFS2603AMBE6AD SFS2603HMBE6AD	S32K324 for BMS application	BE6 report, programming and configuration file	ASIL B	HLQFP48
SFS2613AMDDJAD SFS2613HMDDJAD	S32K344 for BMS application	DDJ report, programming and configuration file	ASIL D	HLQFP48
SFS2613BMDFKAD SFS2613HMDFKAD	S32K344 for BMS application	DFK report, programming and configuration file	ASIL D	HLQFP48
SFS2620AMBGBAD SFS2620HMBGBAD	AM2634 for OBC application	BGB report, programming and configuration file	ASIL B	HLQFP48
SFS2623AMDF5AD SFS2623HMDF5AD	TC377 for BMS application	DF5 report, programming and configuration file	ASIL D	HLQFP48
SFS2631AMDDYAD SFS2631HMDDYAD	TC387 for inverter application	DDY report, programming and configuration file	ASIL D	HLQFP48
SFS2631AMDEXAD SFS2631HMDEXAD	TC387 for DC/DC application	DEX report, programming and configuration file	ASIL D	HLQFP48
SFS2633AMDDZAD SFS2633HMDDZAD	TC377 for inverter application	DDZ report, programming and configuration file	ASIL D	HLQFP48
SFS2633AMDEPAD SFS2633HMDEPAD	RH850U2A for ADAS application	DEP report, programming and configuration file	ASIL D	HLQFP48
SFS2633AMDEZAD SFS2633HMDEZAD	S32K396 for BMS application	DEZ report, programming and configuration file	ASIL D	HLQFP48
SFS2633AMDFDAD SFS2633HMDFDAD	RH850U2A for ADAS application	DFD report, programming and configuration file	ASIL D	HLQFP48
SFS2633AMDG6AD SFS2633HMDG6AD	SPC58NH for BMS application	DG6 report, programming and configuration file	ASIL D	HLQFP48

Note: Any FS26 OTP configuration where VBST is in front-end mode can also be used without it. Connect VBST_FB pin to the VSUP/VSUP_PWR node and follow our recommendations for the other unused pins in section '8. Connection of unused pins' from the FS26 Product datasheet.

Note: Any FS26 OTP configuration where VMONEXT pin is enabled and assigned to the ABIST1 can also be used without it. Connect an external resistor bridge divider to apply 0.8 V at VMONEXT pin.

Note: Each SFS26 part number corresponds to a unique OTP configuration, which is detailed in the FS26 product datasheet in terms of parameters and functionality.

Product Programs

BYLink System Power Platform

This platform facilitates the design of safe power management systems thanks to a portfolio of configurable and linkable devices. It simplifies complex power supply subsystems into a single smart solution.

Learn more

Product Longevity

Participating products are available for a minimum of 10 years. Designated participating products developed for the automotive, telecom and medical segments are available for a minimum of 15 years.

Buy/Parametrics

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Documentation

Quick reference to our documentation types

8 documents

Compact List

AN14492, FS26 Software Quick Start Guide - Application Note[AN14492]

HTML | PDFJan 10, 2025Rev 1.0
AN13431, NXP PMIC Solution for TI TMS570 Series MCU - Application Note[AN13431]

PDFNov 8, 2021Rev 1

Safety System Basis Chip for Automotive Brochure[SBCAUTOBRA4]

PDFOct 17, 2023Rev 15

Safety system basis chip with low power for ASIL D/ASIL B[FS26_SDS]

HTML | PDFDec 12, 2025Rev 6

Powering Electrification: NXP's HV and 12 V/24 V/48 V Solutions for Vehicle Energy Management[TP-TD-DETROIT-POW-ELEC-HV-SOL]

PDFOct 27, 2025Rev 0

UM11812, NXP GUI for FS26 Automotive PMIC Family - User Manual[UM11812]

PDFJul 24, 2024Rev 3

Electrochemical Impedance Spectroscopy White Paper[EIS-WP-NXP]

PDFMar 27, 2026Rev 1
NXP HVBMS Reference Design Helps Developers Get Ahead of the Curve - White Paper[HVBMSRDWP]

PDFAug 25, 2022Rev 1.0

Design Resources

Design Files

Quick reference to our design files types.

3 design files

Receive the full breakdown. See the product footprint and more in the eCad file.

Models
FS26 SMPS Simplis Models

ZIPRev 1.0Apr 29, 2024 17:31:0067.72 KBFS26-SMPS-SIMPLIS-MODELS
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Calculators
FS26 Power Dissipation Tool Calculation

XLSXRev 7.0Feb 2, 2024 17:32:00100.99 KBFS26-POWER-DISSIPATION-TOOL-CALCULATION
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Calculators
FS26 SMPS Calculator

XLSMRev 0.9Jan 31, 2024 17:31:00440.23 KBFS26-SMPS-CALCULATOR
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