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Infineon Technologies TLE6361GNUMA1
- Part No.:
- TLE6361GNUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 36-BSSOP (0.433", 11.00mm Width) Exposed Pad
- Datasheet:
-
TLE6361GNUMA1.pdf
- Description:
- IC REG BUCK ADJ 1.5A QUAD DSO-36
- Quantity:
- Payment:
- Shipping:
Inventory:1,002
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Product details
Overview
TLE6361GNUMA1 from Infineon Technologies is an automotive-grade multi-voltage power supply IC integrating a 5.5V/1.5A buck pre-regulator, three configurable linear post-regulators (5V/800mA, 3.3V or 2.6V/500mA, 5V or 3.3V/350mA), six 5V voltage trackers (17mA each), SPI-controlled diagnostics, and three independent undervoltage reset circuits - designed for 12V/24V/42V PowerNet systems powering 32-bit microcontrollers and sensors in engine control units.
For engineers reviewing the TLE6361GNUMA1 datasheet, TLE6361GNUMA1 pinout, TLE6361GNUMA1 application, or TLE6361GNUMA1 equivalent, key selection considerations include its integrated buck+LDO+tracker architecture, 30µA standby current, SPI-configurable tracker enable/disable, thermal robustness via P-DSO-36-12 heatslug package, and automotive-grade undervoltage detection with open-collector reset outputs.
Technical Context
The device implements a cascaded regulation architecture: a current-mode 330kHz buck converter (5.5V/1.5A) feeds three low-dropout linear regulators whose output voltages are selected via SEL pin configuration and monitored by independent undervoltage detectors (R1–R3). The SPI interface (CLK/CS/DI/DO/ERR) enables real-time tracker control and fault diagnosis.
Internal SPT™ technology integrates bipolar, CMOS, and Power DMOS on one die; the charge pump (C+/C−/CCP) supports gate drive for the internal high-side DMOS switch, while SLEW pin adjusts current slope to minimize EME, and BOOST improves switching efficiency in 42V applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | Up to 60V - supports 12V, 24V, and 42V automotive PowerNets with transient tolerance. |
| Buck Output | 5.5V / 1.5A - pre-regulated supply rail for downstream LDOs and internal logic. |
| LDO1 Output | 5V / 800mA - primary reference rail powering SPI, watchdog, and voltage trackers. |
| LDO2 Output | 3.3V or 2.6V / 500mA - selectable via SEL pin; supplies core logic or I/O domains. |
| LDO3 Output | 5V or 3.3V / 350mA - selectable via SEL pin; powers auxiliary peripherals or interfaces. |
| Standby Current | 30µA typical - enables ultra-low-power mode when engine is off; only Q_STB remains active. |
| Tracker Outputs | 6 × 5V / 17mA - individually SPI-controllable followers of Q_LDO1 for sensor biasing. |
Pinout & Package
P-DSO-36-12 surface-mount package with bottom heatslug and four GND pins (1, 18, 19, 36) internally connected to the thermal pad for enhanced heat dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (1,18,19,36) | Ground reference & thermal path | Internally tied to bottom heatslug; PCB copper pour required for thermal management. |
| IN (30,32) | Main supply input | High-current input nodes for battery connection; short traces to bulk capacitors required. |
| SW (29,31) | Buck switch node | Drives external catch diode and inductor; dual-pin layout minimizes parasitic inductance. |
| FB/L_IN (25,26) | Buck feedback & LDO input | Monitors buck output voltage; also serves as input for linear regulator stage. |
| Q_LDO1 (27) | Primary LDO output | 5V/800mA regulated rail; reference for all six trackers and SPI logic supply. |
| SEL (23) | Voltage select control | Digital input configuring LDO2 (3.3V/2.6V) and LDO3 (5V/3.3V) output voltages. |
| CLK/CS/DI/DO (2–5) | SPI interface | 16-bit serial interface for tracker control, fault readback, and watchdog management. |
| ERR (6) | Fault indicator | Latched push-pull output signaling overtemperature, short-circuit, or watchdog timeout. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Buck + Triple LDO + Six Trackers | Single-chip solution eliminates discrete DC/DC + LDO + follower ICs, reducing BOM count and board area in ECU designs. |
| SPI-Controlled Tracker Enable/Disable | Each of six 5V trackers can be individually powered down via 16-bit command, enabling dynamic sensor power gating. |
| Three Independent UV Detection Circuits | R1–R3 open-collector outputs provide dedicated reset signals per LDO rail, supporting fail-safe system boot sequencing. |
| Thermally Optimized P-DSO-36-12 Package | Bottom-exposed heatslug with four GND pins lowers junction-to-PCB thermal resistance to ≤15°C/W, enabling operation at 125°C ambient. |
| 42V-Optimized Boost & Slew Control | BOOST pin supports external diode/capacitor network; SLEW pin sets switch current slope to suppress EME in high-voltage automotive systems. |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Central power management for 32-bit MCU, CAN transceivers, and analog sensor front-ends in gasoline/diesel engine ECUs. IC Role / Device Role / Timing Role: Primary multi-rail power supply delivering 5V (MCU core), 3.3V (peripherals), and tracked 5V rails (MAP, O2, knock sensors). Use Value: Integrated UV reset (R1–R3) ensures deterministic MCU boot after battery transients; 30µA standby enables always-on wake-up capability. | Use Scenario: Powering dual-core safety MCU, solenoid drivers, and position sensors in automatic transmission controllers. IC Role / Device Role / Timing Role: Regulates 5V for MCU I/O, 2.6V for ADC reference, and six tracked 5V rails for Hall-effect gear-position sensors. Use Value: SEL pin configuration allows hardware-selectable LDO2/LDO3 voltages without firmware change; SPI diagnostics support ASIL-B functional safety monitoring. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Body Control Module (BCM) |
Use Scenario: Supplying image sensor, ISP processor, and serializer in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Provides 5V (sensor bias), 3.3V (ISP core), and tracked 5V (lens actuator drivers) with EMI-optimized slew control. Use Value: SLEW pin adjustment reduces conducted EME below CISPR-25 Class 5 limits; thermal package supports 105°C under-hood mounting. | Use Scenario: Powering door module MCUs, LIN transceivers, and LED drivers across distributed body electronics nodes. IC Role / Device Role / Timing Role: Delivers 5V (MCU), 3.3V (LIN PHY), and tracked 5V (LED backlight drivers) with individual tracker shutdown via SPI. Use Value: Six independent trackers eliminate need for external follower op-amps; open-collector R1–R3 outputs interface directly with MCU GPIOs for reset assertion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail automotive power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLF35584QKVQ1 | Includes integrated watchdog, window comparator, and ASIL-D safety features; no integrated trackers; uses external FETs for buck stage. | Targeted at safety-critical ADAS domain controllers requiring ISO 26262 compliance; lacks on-chip sensor bias tracking. | Select when functional safety certification (ASIL-D) is mandatory and tracker functionality is implemented externally. |
| MAX20090ATPA/VY+ | 3.3V/500mA LDO-only output (no buck); includes 5V/150mA tracker; SPI interface with enhanced diagnostics; smaller 28-pin TQFN. | Designed for space-constrained infotainment and telematics modules; insufficient current for main MCU core supply. | Select for secondary power domains where buck pre-regulation is provided upstream and footprint is critical. |
Compared with TLF35584QKVQ1 and MAX20090ATPA/VY+, the TLE6361GNUMA1 uniquely combines buck pre-regulation, triple configurable LDOs, and six SPI-controllable trackers in one P-DSO-36-12 package - making it optimal for cost-sensitive, thermally demanding ECU designs needing integrated sensor biasing without external followers.
Availability
TLE6361GNUMA1 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, ADAS camera ECUs, and body control modules requiring stable component supply across automotive production lifecycles.
Supply support for TLE6361GNUMA1 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 German semiconductor manufacturer specializing in power management, automotive ICs, and industrial control solutions, with leadership in high-voltage and safety-critical silicon.
The TLE6361GNUMA1 belongs to Infineon's TLE automotive power supply family, engineered specifically for single-chip multi-rail power delivery in 12V/24V/42V engine and chassis control systems.
FAQ
What is the maximum allowable input voltage for TLE6361GNUMA1?
The absolute maximum input voltage is 60V, with continuous operation rated up to 42V for PowerNet applications. It supports cold-crank (4.5V) and load-dump (60V) transients per ISO 7637-2, making it suitable for direct battery connection in automotive environments without external protection circuitry.
How does the SEL pin configure LDO2 and LDO3 output voltages?
The SEL pin is a digital input that selects between two output voltage options for both LDO2 and LDO3: when SEL = low, LDO2 outputs 3.3V and LDO3 outputs 5V; when SEL = high, LDO2 outputs 2.6V and LDO3 outputs 3.3V. This hardware-based selection enables configuration without SPI communication during startup.
Can the six voltage trackers operate independently of the main LDO1 output?
No - all six trackers (Q_T1–Q_T6) are voltage followers referenced exclusively to Q_LDO1. If Q_LDO1 is disabled or fails, tracker outputs collapse. However, each tracker can be individually enabled/disabled via SPI command while Q_LDO1 remains active, allowing selective sensor power control without affecting other rails.
What external components are required for stable buck operation?
Required external components include: input ceramic capacitors (≥10µF) on IN pins, output capacitor (≥100µF low-ESR) on FB/L_IN, bootstrap capacitor (≥2% of output capacitance) between SW and Bootstrap, fly-capacitor (100nF) between C+ and C−, storage capacitor (220nF) from CCP to GND, and optional BOOST network (diode + 100nF cap + 22Ω resistor) for 42V operation.
TLE6361GNUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 36-BSSOP (0.433", 11.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 4
- Voltage - Input (Min):
- 5.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 5.4V
- Voltage - Output (Max):
- 6.06V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 370kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-36-12
TLE6361GNUMA1 FAQ
1.How can I place an order for TLE6361GNUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE6361GNUMA1 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 TLE6361GNUMA1 reliable?
The price and inventory of TLE6361GNUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE6361GNUMA1 is usually 5 days.
3.What payment methods are accepted for TLE6361GNUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE6361GNUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE6361GNUMA1?
TLE6361GNUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE6361GNUMA1 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 TLE6361GNUMA1?
For technical support, including TLE6361GNUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE6361GNUMA1 requirements.
6.How does Aetrix verify that TLE6361GNUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE6361GNUMA1 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 TLE6361GNUMA1 meets industry standards.
7.What is the process for return or replacement of TLE6361GNUMA1?
All TLE6361GNUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE6361GNUMA1, 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 TLE6361GNUMA1 part is unused and in its original packaging.
Return procedure for TLE6361GNUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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