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Infineon Technologies TLE4470GSXUMA1
- Part No.:
- TLE4470GSXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4470GSXUMA1.pdf
- Description:
- IC REG LINEAR POS ADJ 14DSO
- Quantity:
- Payment:
- Shipping:
Inventory:3,898
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Product details
Overview
TLE4470GSXUMA1 from Infineon Technologies is a dual low-dropout voltage regulator IC for automotive microprocessor power supply, featuring a fixed 5 V ±2% standby output (Q1, 180 mA), a tracked 5 V main output (Q2, 350 mA), wide 5.6–45 V input range, -40 °C to 150 °C operation, and integrated Power-On-Reset with adjustable delay. It is packaged in PG-DSO-14 and used in body control modules requiring dual-rail stability under harsh conditions.
For engineers reviewing the TLE4470GSXUMA1 datasheet, TLE4470GSXUMA1 pinout, TLE4470GSXUMA1 application, or TLE4470GSXUMA1 equivalent, key selection criteria include its fixed-output dual-regulator architecture, disable-controlled main rail, open-collector sense/reset outputs, thermal/short-circuit protection, and AEC-Q100 qualification for automotive embedded systems.
Technical Context
The TLE4470GSXUMA1 implements two independent LDO regulators on a single monolithic die: Q1 delivers a precision 5 V ±2% standby rail with internal reference, while Q2 tracks Q1's output voltage with fixed 5 V regulation-no external ADJ2 feedback required. Its reset generator uses Q1 voltage as reference and provides programmable delay via external capacitor at pin D.
Unlike the PG-DSO-20 variant (TLE4470G), the GS version lacks RADJ and ADJ2 pins; reset threshold is fixed at ~4.65 V, and main output is non-adjustable. All protection functions-including overtemperature shutdown, short-circuit current limiting, and undervoltage early warning via SI/SQ-are active across the full -40 °C to 150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standby Output Voltage | 5 V ±2%; stable reference rail for MCU core logic and watchdog circuits |
| Main Output Voltage | Fixed 5 V, tracked to Q1; eliminates need for external feedback divider in dual-rail designs |
| Max Output Current | Q1: 180 mA, Q2: 350 mA; sufficient for 8/16-bit automotive MCUs and peripheral I/O |
| Input Voltage Range | 5.6 V to 45 V; supports cold-crank (6 V) and load-dump (40 V+) transients per ISO 7637-2 |
| Quiescent Current (Standby) | 180 µA typical with DIS high; enables ultra-low-power sleep mode in body electronics |
| Reset Delay Adjustment | Capacitor-based at pin D; sets POR hold time independently of supply ramp rate |
| Operating Temperature | -40 °C to 150 °C junction; qualified for engine bay and transmission control environments |
Pinout & Package
Package: PG-DSO-14, thermally enhanced exposed pad, RoHS-compliant, AEC-Q100 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 D | Reset delay capacitor connection | External capacitor sets POR timeout; open-drain RQ remains low until Q1 stabilizes |
| 2 DIS | Main regulator disable input | High-level signal disables Q2, reducing total quiescent current to 180 µA |
| 3–5 GND | Power ground return | Multiple low-inductance ground paths minimize noise coupling between regulators |
| 6 RQ | Open-collector reset output | Pulled low during POR or Q1 undervoltage; internal 30 kΩ pull-up to Q1 |
| 7 SQ | Open-collector sense output | Signals early warning of VI drop before reset threshold; same pull-up as RQ |
| 8 Q1 | Standby regulator output | 5 V ±2% rail; requires ≥6 µF/ESR <10 Ω ceramic capacitor for stability |
| 9 Q2 | Main regulator output | 5 V tracked to Q1; requires ≥10 µF/ESR <10 Ω ceramic capacitor |
| 10–12 GND | Power ground return | Additional ground pins improve thermal dissipation and reduce ground bounce |
| 13 I | Common input voltage | Single VIN feeds both regulators; decoupling capacitor must be placed directly at pin |
| 14 SI | Sense comparator input | Monitors external supply node (e.g., battery); triggers SQ when VI falls below threshold |
Key Features
| Feature | Design Value |
|---|---|
| Dual tracked LDO outputs | Q2 precisely follows Q1 voltage, eliminating mismatch-induced logic errors in dual-rail MCU systems |
| Disable-controlled main regulator | DIS pin enables zero-load state for Q2 while preserving Q1 for real-time clock and wake-up circuitry |
| Integrated POR with adjustable delay | Capacitor-programmable reset hold time ensures reliable MCU boot even with slow-ramping supplies |
| Early-warning undervoltage detection | SQ output alerts system controller before RQ asserts, allowing graceful shutdown or state save |
| AEC-Q100 Grade 0 qualification | Validated for 150 °C operation and automotive transients, supporting engine control unit deployment |
Applications
| Body Control Module (BCM) | Door Control Unit (DCU) |
|---|---|
Use Scenario: Centralized power management for window lift, mirror fold, and interior lighting controls. IC Role / Device Role / Timing Role: Dual-rail regulator supplying 5 V to MCU and CAN transceiver, with DIS enabling sleep-mode current reduction. Use Value: 180 µA standby current extends battery life during vehicle off-state; Q1/Q2 tracking prevents I/O voltage skew during transient loads. | Use Scenario: Local door ECU managing actuator drivers and position sensors. IC Role / Device Role / Timing Role: Primary power source with integrated POR and early-warning SQ for fault logging prior to reset assertion. Use Value: Fixed 5 V outputs eliminate calibration drift; thermal shutdown protects against enclosed-space overheating during repeated actuation. |
| Seat Control Module | Roof Module (Sunroof/Convertibles) |
Use Scenario: Motor-driven seat position memory and heating control with LIN interface. IC Role / Device Role / Timing Role: Regulator with SI input monitoring battery voltage to preemptively disable heaters before brownout. Use Value: SQ output triggers LIN message indicating low-supply condition, enabling dashboard warning before system reset. | Use Scenario: Sunroof motor and sensor interface in convertible roof systems. IC Role / Device Role / Timing Role: Dual-output LDO powering MCU and Hall-effect position sensors, with RQ driving safety interlock logic. Use Value: Reset output holds roof motor driver in safe state during supply instability, preventing unintended motion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDPWR | Single 3.3 V output, 300 mA, no reset or disable; SOT-23-5 package | Lacks dual-rail, POR, and automotive qualification; suitable only for non-safety sub-systems | Select only if single-rail, non-automotive, space-constrained design requires minimal BOM count |
| MAX16910ATP+ | Dual output (5 V + adjustable), 250 mA each, integrated watchdog, TQFN-20 | Includes watchdog timer and higher integration but lacks AEC-Q100 Grade 0 rating | Prefer where system-level watchdog is needed and 150 °C operation is not mandatory |
Compared with TLV70733PDPWR and MAX16910ATP+, TLE4470GSXUMA1 uniquely combines AEC-Q100 Grade 0 qualification, dual-tracked 5 V outputs, disable-controlled main rail, and programmable POR-all in a thermally robust PG-DSO-14 package optimized for under-hood reliability.
Availability
TLE4470GSXUMA1 is available at Aetrix Electronics and suitable for body control modules, door control units, seat control modules, and roof modules requiring stable component supply under automotive temperature and transient stress conditions.
Supply support for TLE4470GSXUMA1 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 security solutions, with global manufacturing and R&D infrastructure.
The TLE4470 product line delivers dual-output LDO regulators engineered specifically for automotive microcontroller power domains, emphasizing thermal robustness, transient immunity, and functional safety support through integrated monitoring features.
FAQ
What is the purpose of the SI pin on the TLE4470GSXUMA1?
The SI (Sense Input) pin monitors an external voltage node-typically the main battery or upstream supply-and feeds it into an early-warning comparator. When the sensed voltage drops below a threshold, the SQ (Sense Output) pin asserts low before the reset threshold is reached, enabling predictive system response such as data save or warning indication without waiting for full reset assertion.
Can the main output (Q2) be adjusted to voltages other than 5 V in the TLE4470GSXUMA1?
No. The TLE4470GSXUMA1 has a fixed 5 V main output that tracks the standby output Q1. Unlike the PG-DSO-20 TLE4470G variant, the GS version omits the ADJ2 pin and internal feedback path; Q2 is internally tied to match Q1 and cannot be set to higher voltages via external resistors.
How does the reset delay capacitor connect to the TLE4470GSXUMA1?
The reset delay capacitor connects between pin D and GND. Its value determines the Power-On-Reset hold time: larger capacitance increases delay. The internal reset timer starts counting after Q1 reaches regulation; the capacitor discharges through an internal current source, and RQ remains low until discharge completes, ensuring MCU reset persists until stable supply is confirmed.
Is the TLE4470GSXUMA1 compatible with lead-free reflow soldering processes?
Yes. The PG-DSO-14 package is RoHS-compliant and qualified for standard lead-free reflow profiles, including peak temperatures up to 260 °C. Thermal resistance data (Rthj-a = 112 K/W) assumes mounting on an 80 × 80 mm PCB with 35 µm copper, confirming suitability for automated assembly in automotive production lines.
TLE4470GSXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable (Fixed)
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 5V, (5V), Tracking
- Voltage - Output (Max):
- 20V
- Voltage Dropout (Max):
- 0.5V @ 100mA, 0.6V @ 200mA
- Current - Output:
- 180mA, 350mA
- Current - Quiescent (Iq):
- 500 µA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 60dB (20Hz ~ 20kHz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-14
TLE4470GSXUMA1 FAQ
1.How can I place an order for TLE4470GSXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4470GSXUMA1 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 TLE4470GSXUMA1 reliable?
The price and inventory of TLE4470GSXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4470GSXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4470GSXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4470GSXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4470GSXUMA1?
TLE4470GSXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4470GSXUMA1 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 TLE4470GSXUMA1?
For technical support, including TLE4470GSXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4470GSXUMA1 requirements.
6.How does Aetrix verify that TLE4470GSXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4470GSXUMA1 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 TLE4470GSXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4470GSXUMA1?
All TLE4470GSXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4470GSXUMA1, 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 TLE4470GSXUMA1 part is unused and in its original packaging.
Return procedure for TLE4470GSXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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