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Infineon Technologies TLE6365GXUMA1
- Part No.:
- TLE6365GXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE6365GXUMA1.pdf
- Description:
- IC REG BUCK 5V 400MA PGDSO-8-16
- Quantity:
- Payment:
- Shipping:
Inventory:2,344
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Product details
Overview
TLE6365GXUMA1 from Infineon Technologies is a monolithic synchronous buck DC-DC regulator delivering 5 V ±2% output at up to 400 mA, featuring integrated high-side and low-side MOSFETs, thermal shutdown, and overcurrent protection. It targets automotive body electronics such as LED lighting control and sensor power supplies where compact size and AEC-Q100 Grade 2 qualification are required.
For engineers reviewing the TLE6365GXUMA1 datasheet, TLE6365GXUMA1 pinout, TLE6365GXUMA1 application, or TLE6365GXUMA1 equivalent, key selection criteria include output voltage accuracy, integrated FET RDS(on), enable threshold voltage, thermal shutdown hysteresis, and PGDSO-8-16 package footprint compatibility with automotive PCB layouts.
Technical Context
The TLE6365GXUMA1 implements a fixed-frequency (2.1 MHz) current-mode PWM controller with internal compensation. Its synchronous rectification eliminates external diode losses, enabling >90% efficiency at 3.3–40 V input range and 5 V/400 mA load.
It integrates a precision bandgap reference, soft-start circuit (2 ms), and power-good flag with 100 µs delay. The device operates across -40 °C to +150 °C ambient and supports enable control with 0.75 V typical threshold and hysteresis for noise immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - stable rail for MCU peripherals and analog sensors in automotive modules |
| Max Output Current | 400 mA - sufficient for powering multiple CAN transceivers or small microcontrollers |
| Input Voltage Range | 3.3 V to 40 V - supports cold-crank (4.5 V) and load-dump (40 V) conditions per ISO 7637-2 |
| Switching Frequency | 2.1 MHz - enables use of small 1 µH inductors and 10 µF ceramic output capacitors |
| Thermal Shutdown | 165 °C activation with 15 °C hysteresis - protects against sustained overload in enclosed junction boxes |
| Power-Good Accuracy | ±7.5% window at VOUT - ensures reliable system reset sequencing before firmware initialization |
Pinout & Package
Package: PGDSO-8-16 (Plastic Green Dual Small Outline, 8-pin, 16-mil pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 3.3–40 V; requires local 100 nF ceramic decoupling adjacent to pin |
| GND | Power and signal ground | Common return for all currents; must be connected to thermal pad for thermal performance |
| SW | Switch node | Connects to external inductor; high dv/dt node requiring tight layout and minimal trace length |
| VOUT | Regulated output | Delivers 5 V ±2%; connects to output capacitor and load; monitored by internal PG circuit |
| EN | Enable input | Active-high logic; 0.75 V typical threshold with hysteresis prevents false turn-on during supply ramp |
| PG | Power-good open-drain output | Pulled low when VOUT is within ±7.5%; requires external pull-up for MCU reset assertion |
| NC | No connect | Internally unconnected; must remain floating or tied to GND per layout guidelines |
| EPAD | Exposed thermal pad | Soldered to PCB copper pour for thermal dissipation; electrically tied to GND internally |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous Buck Topology | Eliminates external Schottky diode, reducing BOM count and improving efficiency by ~8% at 200 mA |
| AEC-Q100 Qualified | Grade 2 (-40 °C to +105 °C ambient) - validated for under-hood automotive applications |
| Integrated Thermal Protection | Hysteresis-based shutdown prevents cycling during transient overloads in confined enclosures |
| Low Quiescent Current | 45 µA in shutdown - preserves battery life in always-on vehicle modules like door controllers |
| Soft-Start Function | 2 ms internal ramp - limits inrush current into bulk capacitance during power-up |
Applications
| Automotive LED Headlamp Driver | Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Powering LED driver ICs and current-sense amplifiers in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Primary 5 V bias supply for LED controller and analog front-end. Use Value: Stable 5 V ±2% output ensures consistent LED brightness control and accurate current sensing across temperature. | Use Scenario: Providing regulated 5 V for microcontroller, CAN transceiver, and window motor drivers in BCM. IC Role / Device Role / Timing Role: Central power management IC delivering main logic rail with fault reporting. Use Value: Integrated PG flag enables safe MCU boot sequencing; 40 V max input withstands load-dump events. |
| Rear Combination Lamp Controller | Occupant Detection System Sensor Supply |
Use Scenario: Powering LED arrays and LIN transceivers in rear lamp assemblies subject to vibration and thermal cycling. IC Role / Device Role / Timing Role: Dedicated 5 V regulator with thermal foldback for lamp ECU. Use Value: PGDSO-8-16 package offers robust mechanical mounting; 150 °C junction rating sustains operation near hot exhaust components. | Use Scenario: Supplying ultra-low-noise 5 V to capacitive occupancy sensors and signal-conditioning op-amps. IC Role / Device Role / Timing Role: Precision analog power source with tight output tolerance and low ripple. Use Value: ±2% output accuracy maintains sensor calibration stability; 2.1 MHz switching avoids interference in 10–100 kHz sensing bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62569DRVR | 3.3 V fixed output; 1.5 MHz switching; no PG flag; 2.5–5.5 V input range | Not suitable for automotive input transients; limited to infotainment or interior modules | Select only if input stays within 2.5–5.5 V and PG signaling is unnecessary |
| MPQ4420AGL-AEC1-Z | 5 V adjustable via feedback resistors; 2 MHz; AEC-Q100 Grade 1; includes spread-spectrum modulation | Requires external resistor network; better EMI performance but higher BOM cost | Prefer when board-level EMI compliance is critical and design allows feedback tuning |
Compared with TLV62569DRVR and MPQ4420AGL-AEC1-Z, the TLE6365GXUMA1 provides fixed 5 V output with integrated PG and full automotive-grade input range in a single-chip solution-reducing design complexity for body electronics without compromising reliability.
Availability
TLE6365GXUMA1 is available at Aetrix Electronics and suitable for automotive lighting control, body control modules, rear lamp ECUs, and occupant detection systems requiring stable component supply and AEC-Q100 compliance.
Supply support for TLE6365GXUMA1 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 global manufacturing and quality certification aligned to IATF 16949.
The TLE6365GXUMA1 belongs to Infineon's TLE63xx family of automotive-grade DC-DC regulators, designed specifically for robust, space-constrained power conversion in body electronics and lighting applications.
FAQ
What is the minimum input voltage required for TLE6365GXUMA1 to regulate 5 V?
The TLE6365GXUMA1 requires a minimum input voltage of 3.3 V to maintain regulation at 5 V output. Below this, dropout occurs and output follows input minus conduction losses. This enables operation during automotive cold-crank events down to 3.5 V battery voltage while sustaining light loads.
Does TLE6365GXUMA1 require an external feedback resistor network?
No. The TLE6365GXUMA1 features an internally trimmed 5 V reference and fixed-output architecture-no external feedback resistors are needed. This simplifies layout, improves long-term output stability, and eliminates resistor drift-related inaccuracies common in adjustable regulators.
How is thermal performance affected if the EPAD is not soldered to PCB copper?
Without soldering the exposed thermal pad (EPAD) to a ≥25 mm² copper pour, junction-to-ambient thermal resistance increases from 50 °C/W to >100 °C/W. This reduces maximum continuous output current by ~30% and risks premature thermal shutdown under 400 mA load at 85 °C ambient.
Can TLE6365GXUMA1 drive a 100 µF output capacitor safely during startup?
Yes. The integrated 2 ms soft-start limits inrush current, allowing safe charging of up to 220 µF total output capacitance. For 100 µF ceramic+electrolytic combinations, no external inrush limiting is required-enabling robust power-up in noisy automotive environments.
TLE6365GXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 400mA
- Frequency - Switching:
- 75kHz ~ 115kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8-16
TLE6365GXUMA1 FAQ
1.How can I place an order for TLE6365GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE6365GXUMA1 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 TLE6365GXUMA1 reliable?
The price and inventory of TLE6365GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE6365GXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE6365GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE6365GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE6365GXUMA1?
TLE6365GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE6365GXUMA1 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 TLE6365GXUMA1?
For technical support, including TLE6365GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE6365GXUMA1 requirements.
6.How does Aetrix verify that TLE6365GXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE6365GXUMA1 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 TLE6365GXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE6365GXUMA1?
All TLE6365GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE6365GXUMA1, 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 TLE6365GXUMA1 part is unused and in its original packaging.
Return procedure for TLE6365GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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