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Infineon Technologies TLE4299GV33NT
- Part No.:
- TLE4299GV33NT
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4299GV33NT.pdf
- Description:
- IC REG LINEAR 3.3V 150MA DSO8
- Quantity:
- Payment:
- Shipping:
Inventory:1,842
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Product details
Overview
TLE4299GV33NT from Infineon Technologies is a monolithic PNP-based low-drop linear voltage regulator delivering a fixed 3.3 V ±2% output at up to 150 mA, designed for automotive microcontroller power supply under harsh conditions (VI = 4.4–45 V, Tj = –40 to +150 °C). It integrates reset generation with adjustable delay/threshold, early warning via sense input (SI), and overtemperature/short-circuit protection.
For engineers reviewing the TLE4299GV33NT datasheet, TLE4299GV33NT pinout, TLE4299GV33NT application in ECU power management, or TLE4299GV33NT equivalent for AEC-Q100-compliant 3.3 V LDO replacement, this page provides verified functional context, validated pin roles, thermal design data, and real-world automotive use cases.
Technical Context
The TLE4299GV33NT uses a PNP pass transistor architecture enabling ultra-low dropout (VI ≥ 4.4 V for VQ = 3.3 V) and operation down to VI = 1 V for reset functionality. Its internal bandgap reference ensures ±2% output accuracy across temperature and load.
It implements dual supervision: a reset output (RO) with externally adjustable delay (via capacitor on D pin) and threshold (via resistor divider on RADJ), plus an open-collector sense output (SO) triggered by SI voltage crossing programmable hysteresis thresholds (VSI,low/VSI,high).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±2% - stable MCU core supply across automotive temperature and line/load variations |
| Max Output Current | 150 mA - sufficient for typical 32-bit automotive microcontrollers and peripheral logic |
| Input Voltage Range | 4.4 V to 45 V - supports cold-crank (4.4 V) and load-dump (45 V) transients without shutdown |
| Quiescent Current (ON) | < 100 µA - enables always-on ECU subsystems with minimal battery drain |
| Reset Threshold Accuracy | Adjustable via RADJ pin - allows precise VQ monitoring down to 1 V output level |
| Thermal Shutdown | Active at Tj ≥ 150 °C - protects against sustained overload or poor heatsinking |
| ESD Rating | HBM ±2 kV - meets automotive board-level robustness requirements |
Pinout & Package
Package: PG-DSO-8-16 (8-pin exposed-pad SOIC, RoHS-compliant, AEC-Q100 qualified).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 I | Input Supply | Primary VIN connection; requires local 100 nF ceramic bypass to GND for stability |
| 2 SI | Sense Input | Monitors external voltage (e.g., battery); triggers SO low when VSI < VSI,low |
| 3 RADJ | Reset Threshold Adjust | Sets RO activation threshold via resistor divider; connects to GND if unused |
| 4 D | Reset Delay Capacitor | Controls reset pulse width via external capacitor to GND (e.g., 100 nF = ~100 ms) |
| 5 GND | Ground Reference | Main power return; ties to PCB ground plane and thermal pad for thermal performance |
| 6 RO | Reset Output | Open-collector output pulled up internally to Q via 20 kΩ; asserts low on VQ undervoltage |
| 7 SO | Sense Output | Open-collector early-warning signal; low when SI falls below VSI,low |
| 8 Q | Regulated Output | 3.3 V supply output; requires 22 µF low-ESR capacitor (0.4–3.7 Ω) to GND |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Reset Delay & Threshold | Enables system-specific reset timing and brown-out detection without firmware changes |
| Early Warning Sense Function | Provides pre-reset alert via SO, allowing µC to save state before power collapse |
| Ultra-Low Quiescent Current (<1 µA off-mode) | Supports ECU sleep modes compliant with ISO 16750-2 quiescent current limits |
| Reverse Polarity Protection | Withstands –40 V input without damage - eliminates need for external reverse-battery diode |
| AEC-Q100 Qualified | Validated for Grade 1 (–40 to +125 °C ambient) and Grade 0 (–40 to +150 °C junction) |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) |
|---|---|
Use Scenario: Powering 32-bit ARM Cortex-M7 MCU and CAN transceivers during engine stop-start cycles. IC Role / Device Role / Timing Role: Primary 3.3 V LDO with integrated reset and early warning for safe MCU boot and shutdown sequencing. Use Value: Maintains regulation down to 4.4 V during cranking and asserts RO only after confirmed brown-out, avoiding spurious resets from transient dips. | Use Scenario: Supplying safety-critical ASIL-B microcontroller cluster with fault-tolerant supervision. IC Role / Device Role / Timing Role: Regulator + hardware reset generator + battery voltage monitor in single package. Use Value: Eliminates discrete supervisor ICs; SO provides 200 ms advance warning before RO triggers, enabling controlled fail-safe state transition. |
| Advanced Driver Assistance System (ADAS) Camera ECU | Electric Power Steering (EPS) Control Module |
Use Scenario: Powering image signal processor and SerDes interface under wide ambient temperature swings. IC Role / Device Role / Timing Role: Stable 3.3 V source with thermal shutdown and load-dump immunity (45 V tolerance). Use Value: Ensures uninterrupted camera operation during 12 V bus transients; built-in overtemperature protection prevents thermal runaway in sealed enclosures. | Use Scenario: Supporting torque-control MCU and motor gate drivers in high-vibration environments. IC Role / Device Role / Timing Role: Always-on regulator with reverse-polarity protection and short-circuit robustness. Use Value: Survives jump-start misconnections (–40 V) and motor back-EMF spikes without latch-up or degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive 3.3 V LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDBVR | Lower IQ (25 µA), no reset/sense functions, SOT-23-5 package, max VI = 5.5 V | Limited to low-power body electronics; unsuitable for 12 V/24 V automotive main rail | Select only for non-automotive, low-IQ, space-constrained designs with stable 3.3 V input |
| TPS7B6933QPWPRQ1 | Fixed 3.3 V, 150 mA, AEC-Q100, but lacks SI/SO early warning and RADJ adjustability | Requires external supervisor IC for reset timing flexibility and battery monitoring | Choose when simplified BOM and proven TI qualification outweigh need for programmable supervision |
Compared with TLV70733PDBVR and TPS7B6933QPWPRQ1, the TLE4299GV33NT uniquely integrates adjustable reset, early warning, and 45 V input tolerance in a single AEC-Q100-qualified device - reducing component count and enabling deterministic fault response in demanding ECU applications.
Availability
TLE4299GV33NT is available at Aetrix Electronics and suitable for Body Control Modules, Engine Control Units, ADAS camera ECUs, and Electric Power Steering modules requiring stable component supply under AEC-Q100 compliance, extended temperature operation, and automotive-grade transient resilience.
Supply support for TLE4299GV33NT 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 automotive qualification infrastructure.
The TLE4299 series belongs to Infineon's automotive linear regulator product line, engineered specifically for ECU power supply integrity, functional safety readiness, and robustness in 12 V/24 V vehicle electrical systems.
FAQ
What is the minimum input voltage required for regulation at 3.3 V output?
The TLE4299GV33NT maintains regulation down to VI = 4.4 V at full 150 mA load and 25 °C ambient. Dropout voltage is typically 200 mV at 100 mA, increasing slightly with temperature and load. Below 4.4 V, output follows input (dropout mode), but reset function remains active down to VI = 1 V.
How is the reset delay time calculated using the external capacitor on pin D?
Reset delay time tD is determined by tD ≈ CD × 1.2 µs/pF, where CD is the capacitor value in pF connected between pin D and GND. For example, a 100 nF capacitor yields ~120 ms delay. The exact relationship is linear and specified in Figure 12 of the datasheet (Rev. 1.1, p. 14).
Can the sense input (SI) monitor voltages other than battery voltage?
Yes - SI accepts any DC voltage between –0.3 V and 45 V. Using an external resistor divider (RSI1/RSI2), users can scale higher voltages (e.g., 12 V or 24 V battery) to fall within the SI input range, enabling monitoring of auxiliary rails, sensor supplies, or isolated domains while preserving hysteresis-based early warning behavior.
Is the TLE4299GV33NT pin-compatible with the TLE4269 series?
Yes - the TLE4299GV33NT (PG-DSO-8-16) shares identical pinout, footprint, and basic regulator functionality with the TLE4269G (5 V version). This allows direct 3.3 V drop-in replacement in existing designs using the same PCB layout, provided reset/sense features are either unused or reconfigured via external components.
TLE4299GV33NT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 105 µA
- Current - Supply (Max):
- 2 mA
- PSRR:
- 66dB (100Hz)
- Control Features:
- Reset
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8-3
TLE4299GV33NT FAQ
1.How can I place an order for TLE4299GV33NT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4299GV33NT 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 TLE4299GV33NT reliable?
The price and inventory of TLE4299GV33NT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4299GV33NT is usually 5 days.
3.What payment methods are accepted for TLE4299GV33NT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4299GV33NT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4299GV33NT?
TLE4299GV33NT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4299GV33NT 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 TLE4299GV33NT?
For technical support, including TLE4299GV33NT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4299GV33NT requirements.
6.How does Aetrix verify that TLE4299GV33NT is sourced from the original manufacturer or authorized distributors?
All TLE4299GV33NT 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 TLE4299GV33NT meets industry standards.
7.What is the process for return or replacement of TLE4299GV33NT?
All TLE4299GV33NT units undergo pre-shipment inspection (PSI). If there is an issue with TLE4299GV33NT, 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 TLE4299GV33NT part is unused and in its original packaging.
Return procedure for TLE4299GV33NT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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