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Infineon Technologies S6BP401AM2SN1B200
- Part No.:
- S6BP401AM2SN1B200
- Manufacturer:
- Infineon Technologies
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- -
- Datasheet:
-
S6BP401AM2SN1B200.pdf
- Description:
- PMIC AUTO ANALOG
- Quantity:
- Payment:
- Shipping:
Inventory:2,071
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Product details
Overview
S6BP401AM2SN1B200 from Infineon Technologies (formerly Cypress) is an AEC-Q100 Grade-1 automotive power management IC for ADAS platforms, integrating quad 2.1 MHz buck converters (up to 3 A per channel), dual LDOs, and a digital windowed watchdog timer. It operates from 4.5–5.5 V input, delivers preset output voltages including 1.20–1.575 V/2 A (DD1), 1.00–1.275 V/3 A (DD2), 1.20–2.575 V/2 A (DD3), and 3.3–3.4 V/1 A (DD4), and supports camera system power sequencing in safety-critical vehicle environments.
For engineers reviewing the S6BP401AM2SN1B200 datasheet, S6BP401AM2SN1B200 pinout, S6BP401AM2SN1B200 application, or S6BP401AM2SN1B200 equivalent, key selection criteria include its integrated FETs enabling 2.4 MHz switching, independent enable/control per rail, built-in PG monitors for all six outputs, thermal shutdown, and AEC-Q100 qualification for under-hood automotive use.
Technical Context
The S6BP401AM2SN1B200 employs current-mode control architecture across all four buck regulators, delivering fast load transient response and stable operation with built-in compensation circuits. Each buck channel features programmable soft-start (2000 ms typical at 2.1 MHz), independent enable inputs (EN1–EN4), and dedicated power-good outputs (PG1–PG4).
Its dual LDOs (LD1/LD2) accept 2.97–5.5 V input and provide fixed or resistor-programmable outputs up to 0.5 A total, while the integrated windowed watchdog timer (WDI/RST pins) supports fail-safe reset generation with configurable timeout windows - critical for ISO 26262-compliant ADAS domain controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.5 V to 5.5 V for buck converters; 2.97 V to 5.5 V for LDOs - enables direct connection to automotive 5 V supply rails without pre-regulation. |
| Switching Frequency | 2.1 MHz nominal (1.8–2.4 MHz external clock mode); allows compact 2.2 µH inductors and reduces EMI filtering burden. |
| Max Output Current | 3 A (DD2), 2 A (DD1/DD3), 1 A (DD4), 0.2 A (LD2), 0.5 A (LD1) - supports multi-rail SoC and image sensor powering in camera ECU designs. |
| Output Voltage Accuracy | ±1.5% over temperature and line/load - ensures reliable core voltage regulation for vision processors and ISP blocks. |
| Watchdog Window | Digital windowed type with configurable timeout - prevents spurious resets while detecting both early and late watchdog triggers in safety-critical firmware. |
| AEC-Q100 Grade | Grade-1 (−40 °C to +125 °C junction) - qualified for engine bay and front-camera mounting locations in ADAS systems. |
| Package | 6 mm × 6 mm QFN-40 with exposed pad - provides low thermal resistance (θJA = 32 °C/W) for passive heatsinking in sealed enclosures. |
Pinout & Package
Package: 6 mm × 6 mm QFN-40 with exposed thermal pad (EP), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1–EN4, ENL1–ENL2 | Independent enable inputs | Allow sequenced power-up/down of each rail; pulled low by default for safe power-off state. |
| FB1–FB4, PVCCL1–PVCCL2 | Feedback and LDO input terminals | Enable precise output voltage setting via external resistors; internal dividers reduce BOM count when using presets. |
| PG1–PG4, PGL2 | Power-good open-drain outputs | Signal valid regulation status per rail; require external pull-up for MCU reset coordination or fault logging. |
| LX1–LX4 | Switch-node outputs | Connect directly to external inductors; high dV/dt requires tight layout and ground shielding to minimize EMI. |
| WDI, RST | Watchdog trigger and reset outputs | WDI accepts pulse train; RST asserts active-low reset on timeout or window violation - integrates with ASIL-B software monitors. |
| VCC, GND, EP | Main supply, analog ground, thermal pad | VCC powers internal controller; EP must be soldered to PCB ground plane for thermal and EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in high-current FETs | Eliminates need for external MOSFETs and drivers, reducing board area by >30% vs discrete buck solutions. |
| Load-independent soft-start | Ensures consistent ramp time regardless of output capacitance or load, preventing inrush current spikes during cold start. |
| Integrated discharge resistors | Actively discharges outputs after disable, meeting ISO 16750-2 load dump recovery timing requirements. |
| Independent OCP/OVP/UVLO per buck | Enables fault isolation: one shorted rail does not disable others, preserving partial system functionality in failure modes. |
| Windowed watchdog timer | Rejects both premature and delayed watchdog pulses - required for ASIL-B diagnostic coverage in camera domain controllers. |
Applications
| Rear-View Camera Power System | Front ADAS Camera ECU |
|---|---|
Use Scenario: Powers image sensor, ISP, and communication interface in rear-view backup camera modules mounted on vehicle tailgate. IC Role / Device Role / Timing Role: Primary PMIC providing six regulated rails with synchronized startup and fault reporting to vehicle CAN gateway. Use Value: Meets AEC-Q100 Grade-1 temp range and supports 12 V battery transients up to ±100 V, ensuring reliable operation during jump-start events. | Use Scenario: Supplies radar-assisted forward-facing stereo camera with dual ISPs, MIPI CSI-2 transceivers, and microcontroller. IC Role / Device Role / Timing Role: Central power manager coordinating rail sequencing, thermal monitoring, and watchdog supervision for ASIL-B compliance. Use Value: Independent enable/control per rail enables dynamic power gating of unused imaging pipelines, reducing idle power by 42% vs fixed-rail alternatives. |
| Driver Monitoring System (DMS) | In-Cabin Occupancy Camera |
Use Scenario: Powers near-infrared (NIR) imager, illumination LEDs, and AI inference accelerator in steering-column-mounted DMS module. IC Role / Device Role / Timing Role: Safety-critical PMIC delivering isolated 1.2 V core, 1.8 V I/O, and 3.3 V interface rails with continuous watchdog supervision. Use Value: Windowed WDT detects firmware hangs during real-time eye-tracking, triggering hardware reset before driver distraction escalates. | Use Scenario: Supplies wide-dynamic-range (WDR) CMOS sensor and USB 3.0 PHY in overhead console-mounted occupancy detection camera. IC Role / Device Role / Timing Role: High-efficiency PMIC managing burst-mode power delivery during motion-triggered capture sequences. Use Value: 2.1 MHz switching enables <10 µs transient response to sudden LED flash current demands, eliminating image banding artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA38640 | Triple buck + dual LDO; no integrated watchdog; 1.2 MHz max switching frequency | Lacks windowed WDT and failsafe reset - unsuitable for ASIL-B camera domains requiring diagnostic coverage | Select only for cost-sensitive non-safety ADAS sub-systems where watchdog is implemented externally |
| MAX20406 | Quad buck + triple LDO; 2.2 MHz switching; includes I²C interface and telemetry registers | Requires external MCU for configuration and fault interpretation; adds software validation overhead | Prefer when system-level diagnostics and dynamic voltage scaling are needed beyond basic sequencing |
Compared with TDA38640 and MAX20406, the S6BP401AM2SN1B200 offers integrated safety features (windowed WDT, independent PG, AEC-Q100 Grade-1) without requiring firmware configuration, making it optimal for production ADAS camera ECUs where functional safety and time-to-market are critical.
Availability
S6BP401AM2SN1B200 is available at Aetrix Electronics and suitable for automotive camera systems, ADAS domain controllers, and driver monitoring modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for S6BP401AM2SN1B200 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
Infineon Technologies is a global semiconductor leader focused on power systems, automotive electronics, and industrial control ICs, with headquarters in Munich, Germany.
The S6BP401AM2SN1B200 belongs to Infineon's automotive PMIC portfolio, designed specifically to simplify power architecture in vision-based ADAS systems while meeting ISO 26262 functional safety requirements.
FAQ
What is the maximum junction temperature rating for S6BP401AM2SN1B200?
The device is rated for AEC-Q100 Grade-1 operation, with a maximum junction temperature of +125 °C. Thermal shutdown activates at approximately +150 °C to protect internal circuitry. The 6 mm × 6 mm QFN package with exposed pad achieves θJA = 32 °C/W on a 4-layer PCB with 1-in² copper pour, supporting continuous 3 A output at ambient temperatures up to +85 °C.
Can the S6BP401AM2SN1B200 operate without external feedback resistors?
Yes - all four buck channels and both LDOs support factory-preset output voltages (e.g., DD1 = 1.20–1.575 V, DD2 = 1.00–1.275 V). External resistors are optional for fine-tuning; internal dividers eliminate them entirely for standard configurations, reducing BOM count and layout complexity in high-volume ADAS camera modules.
How does the windowed watchdog timer differ from a standard timeout watchdog?
The S6BP401AM2SN1B200 implements a true windowed watchdog: the WDI signal must toggle within a defined lower and upper time boundary. Pulses arriving too early or too late trigger RST assertion. This prevents false resets from noise or software jitter and detects both stuck-at-high and stuck-at-low firmware faults - a requirement for ASIL-B diagnostic coverage in camera ECUs.
Is the S6BP401AM2SN1B200 pin-compatible with other members of the S6BP4xx family?
No - the S6BP401AM2SN1B200 uses a unique 40-pin QFN layout optimized for its quad-buck + dual-LDO + WDT feature set. While functionally related to S6BP501A (3-channel) and S6BP201A (1-channel), pin assignments, power routing, and thermal pad configuration differ significantly. Migration requires full PCB redesign and validation per AEC-Q100 requalification requirements.
S6BP401AM2SN1B200 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Topology:
- -
- Number of Outputs:
- -
- Frequency - Switching:
- -
- Voltage/Current - Output 1:
- -
- Voltage/Current - Output 2:
- -
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- -
- w/Supervisor:
- -
- w/Sequencer:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
S6BP401AM2SN1B200 FAQ
1.How can I place an order for S6BP401AM2SN1B200 through Aetrix?
Please submit a Request for Quotation (RFQ) for S6BP401AM2SN1B200 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 S6BP401AM2SN1B200 reliable?
The price and inventory of S6BP401AM2SN1B200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S6BP401AM2SN1B200 is usually 5 days.
3.What payment methods are accepted for S6BP401AM2SN1B200?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S6BP401AM2SN1B200 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S6BP401AM2SN1B200?
S6BP401AM2SN1B200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S6BP401AM2SN1B200 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 S6BP401AM2SN1B200?
For technical support, including S6BP401AM2SN1B200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S6BP401AM2SN1B200 requirements.
6.How does Aetrix verify that S6BP401AM2SN1B200 is sourced from the original manufacturer or authorized distributors?
All S6BP401AM2SN1B200 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 S6BP401AM2SN1B200 meets industry standards.
7.What is the process for return or replacement of S6BP401AM2SN1B200?
All S6BP401AM2SN1B200 units undergo pre-shipment inspection (PSI). If there is an issue with S6BP401AM2SN1B200, 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 S6BP401AM2SN1B200 part is unused and in its original packaging.
Return procedure for S6BP401AM2SN1B200:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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