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Infineon Technologies TLE4299GV33
- Part No.:
- TLE4299GV33
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4299GV33.pdf
- Description:
- IC REG LINEAR FIXED LDO REG
- Quantity:
- Payment:
- Shipping:
Inventory:2,242
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Product details
Overview
TLE4299GV33 from Infineon is a monolithic low-dropout linear voltage regulator delivering a fixed 3.3 V ±2% output with up to 150 mA load current, integrated inhibit control (off-state quiescent current <1 µA), reset output active down to VQ = 1 V, and early warning supervision via SI/SO pins. It is AEC-Q100 qualified for automotive microcontroller power supply in always-on ECU modules.
For engineers reviewing the TLE4299GV33 datasheet, TLE4299GV33 pinout, TLE4299GV33 application, or TLE4299GV33 equivalent, key selection criteria include its 4.4–45 V input range, adjustable reset delay via external capacitor, programmable reset threshold via RADJ, sense-input hysteresis for battery monitoring, and PG-DSO-8 package compatibility with TLE4269.
Technical Context
The TLE4299GV33 employs a PNP-based LDO architecture enabling ultra-low dropout operation across wide input voltage ranges (4.4 V to 45 V) while maintaining ±2% output accuracy. Its internal bandgap reference and current-saturation control ensure stable regulation under transient load and temperature extremes (-40 °C to +150 °C).
Functional blocks include an inhibit-controlled enable path, dual-threshold reset logic (with adjustable delay and switching threshold), and independent sense-input supervision with hysteresis. The reset output (RO) is open-collector with internal 20 kΩ pull-up to Q, and SO provides early warning via open-collector output referenced to SI voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 3.3 V ±2% - Ensures reliable MCU core/logic supply within tight tolerance across temperature and load. |
| Max output current | 150 mA - Supports mid-complexity automotive microcontrollers and peripheral ICs without external boost. |
| Quiescent current (ON) | Extreme low - Enables always-on ECU operation without excessive standby drain on vehicle battery. |
| Inhibit off-state current | <1 µA - Allows full system shutdown during engine-off periods while preserving configuration memory. |
| Reset activation threshold | Active down to VQ = 1 V - Guarantees deterministic reset assertion even during severe brown-out or cranking conditions. |
| Input voltage range | 4.4 V to 45 V - Covers cold-crank (4.4 V), nominal (13.5 V), and load-dump (45 V) automotive transients. |
| Operating junction temp | -40 °C to +150 °C - Validated for under-hood placement per AEC-Q100 Grade 0 requirements. |
Pinout & Package
Package: PG-DSO-8 (exposed pad, RoHS-compliant, thermally enhanced surface-mount).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 I | Input supply | Primary VIN connection; requires local ceramic decoupling directly to GND for stability. |
| 2 SI | Sense input | Monitors external voltage (e.g., battery); triggers SO low when VSI drops below VSI,low with hysteresis. |
| 3 RADJ | Reset threshold adjust | Configures reset switching point via resistor divider; connect to GND if unused. |
| 4 D | Reset delay | Connects to GND via external capacitor to set reset assertion/deassertion timing. |
| 5 GND | Ground reference | Main power return; ties all internal blocks and external capacitors to common reference plane. |
| 6 RO | Reset output | Open-collector output pulled up internally to Q via 20 kΩ; asserts low on undervoltage condition. |
| 7 SO | Sense output | Open-collector early-warning signal; goes low when SI voltage falls below programmed threshold. |
| 8 Q | Regulated output | 3.3 V supply output; requires 22 µF output capacitor with ESR 0.4–3.7 Ω for loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 3.3 V LDO with ±2% accuracy | Meets strict MCU core voltage requirements without external feedback components. |
| Inhibit-controlled shutdown (<1 µA IQ) | Enables zero-power sleep mode for body control modules and telematics ECUs. |
| Adjustable reset delay and threshold | Allows system-specific timing tuning via single external capacitor and resistor divider. |
| Early warning sense function with hysteresis | Provides predictive battery voltage monitoring to initiate graceful MCU shutdown before reset. |
| AEC-Q100 qualified, reverse polarity protected | Validated for automotive deployment with built-in protection against wiring errors and transients. |
Applications
| Body Control Module (BCM) | Instrument Cluster ECU |
|---|---|
|
Use Scenario: Powering 32-bit ARM-based microcontroller and CAN transceiver in door module with always-on wake capability. IC Role / Device Role / Timing Role: Primary 3.3 V LDO with inhibit-driven sleep/wake control and reset supervision during ignition cycling. Use Value: Maintains RTC and security state during vehicle off-time while consuming <1 µA, eliminating need for secondary backup rail. |
Use Scenario: Supplying display controller and analog gauges in digital instrument cluster exposed to 12 V battery and load-dump events. IC Role / Device Role / Timing Role: Regulated 3.3 V source with early warning (SO) signaling battery sag prior to cranking-induced reset. Use Value: Prevents display flicker or data corruption by triggering firmware mitigation before VQ drops below MCU minimum operating voltage. |
| Telematics Control Unit (TCU) | ADAS Camera ECU |
|
Use Scenario: Powering LTE modem, GNSS receiver, and secure element in connected vehicle gateway with over-the-air update persistence. IC Role / Device Role / Timing Role: Always-on 3.3 V regulator with programmable reset delay to prevent spurious reboots during cellular handover transients. Use Value: External capacitor on D pin sets >200 ms reset hold time, ensuring firmware completes critical NVM writes before power loss. |
Use Scenario: Supplying image signal processor and serializer in rear-view camera module mounted near exhaust with high ambient temperature. IC Role / Device Role / Timing Role: High-temp-stable LDO with thermal shutdown and 150 mA headroom for burst-mode ISP operation. Use Value: Junction temperature rating up to +150 °C enables direct PCB mounting without heatsink, reducing BOM count and footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDBVR | 300 mA output, 2.5 µA quiescent current, no inhibit or reset functions, SOT-23-5 package. | Lacks early warning, reset, and inhibit - suitable only for non-safety-critical, low-complexity loads. | Select when cost and size outweigh functional safety requirements and system-level reset coordination is handled externally. |
| TLE4274V33 | Same PG-DSO-8 footprint, 3.3 V ±2%, 400 mA output, no inhibit or SI/SO supervision, higher IQ (3 mA typical). | Higher current capacity but no intelligent supervision features - used where reset logic is implemented separately. | Choose when peak load exceeds 150 mA and system already includes discrete reset IC or microcontroller-based voltage monitoring. |
Compared with TLV70733PDBVR and TLE4274V33, the TLE4299GV33 uniquely integrates inhibit control, programmable reset, and early warning in a single AEC-Q100-qualified device - reducing component count and improving fault coverage for ISO 26262 ASIL-B systems.
Availability
TLE4299GV33 is available at Aetrix Electronics and suitable for body control modules, instrument clusters, telematics gateways, and ADAS camera ECUs requiring stable component supply under automotive qualification and long-term lifecycle support.
Supply support for TLE4299GV33 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 OPTIREG™ Linear product line delivers AEC-Q100-qualified voltage regulators engineered specifically for harsh automotive environments - emphasizing reliability, thermal robustness, and integrated system supervision functions.
FAQ
What is the minimum input voltage required for regulation?
The TLE4299GV33 maintains regulation down to 4.4 V input, enabling stable 3.3 V output during cold-cranking conditions typical in 12 V automotive systems. Below 4.4 V, the device enters dropout and output tracks input minus saturation voltage; reset remains active down to VQ = 1 V.
How is the reset delay time configured?
Reset delay is set by connecting an external capacitor between pin D and GND. The delay time is determined by the capacitor's value and internal constant-current charging/discharging circuitry. Typical values range from 10 ms to 1 s depending on capacitance, with design guidance provided in Section 5.1 of the datasheet.
Can the early warning function monitor voltages other than battery?
Yes - the SI pin accepts any DC voltage within -0.3 V to 45 V. By using an external resistor divider, users can scale higher voltages (e.g., 48 V subsystem rails) or detect specific thresholds (e.g., 5 V USB supply sag). SO asserts low when scaled SI voltage crosses the hysteresis band defined by VSI,low and VSI,high.
Is the TLE4299GV33 pin-compatible with the TLE4269?
Yes - the TLE4299GV33 uses the same PG-DSO-8 package and identical pinout as the TLE4269, enabling drop-in replacement. However, the TLE4299GV33 adds inhibit functionality (INH pin mapped to I on TLE4269) and enhanced reset behavior, requiring minor schematic review for inhibit signal routing.
TLE4299GV33 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 105 µA
- Current - Supply (Max):
- -
- PSRR:
- 66dB (100Hz)
- Control Features:
- Reset
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- P-DSO-8-3
TLE4299GV33 FAQ
1.How can I place an order for TLE4299GV33 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4299GV33 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 TLE4299GV33 reliable?
The price and inventory of TLE4299GV33 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4299GV33 is usually 5 days.
3.What payment methods are accepted for TLE4299GV33?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4299GV33 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4299GV33?
TLE4299GV33 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4299GV33 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 TLE4299GV33?
For technical support, including TLE4299GV33 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4299GV33 requirements.
6.How does Aetrix verify that TLE4299GV33 is sourced from the original manufacturer or authorized distributors?
All TLE4299GV33 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 TLE4299GV33 meets industry standards.
7.What is the process for return or replacement of TLE4299GV33?
All TLE4299GV33 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4299GV33, 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 TLE4299GV33 part is unused and in its original packaging.
Return procedure for TLE4299GV33:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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