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Infineon Technologies TLE42994GMV33XUMA3
- Part No.:
- TLE42994GMV33XUMA3
- Manufacturer:
- Infineon Technologies
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE42994GMV33XUMA3.pdf
- Description:
- OPTIREG LINEAR
- Quantity:
- Payment:
- Shipping:
Inventory:19,700
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Product details
Overview
TLE42994GMV33 from Infineon Technologies is a monolithic 3.3 V ±2% low-dropout linear voltage regulator with integrated enable, reset, and sense functions, designed for automotive power management in always-on systems. It delivers up to 150 mA output current, supports 4.4 V–45 V input range, features <1 µA shutdown current, programmable reset delay via external capacitor, and operates across –40°C to +150°C.
For engineers reviewing the TLE42994GMV33 datasheet, TLE42994GMV33 pinout, TLE42994GMV33 application in automotive body control modules or ADAS domain controllers, or TLE42994GMV33 equivalent for AEC-Q100-compliant 3.3 V regulation, this page provides verified functional context, validated pin roles, real-world design constraints, and direct alternative comparisons.
Technical Context
The TLE42994GMV33 integrates a bandgap reference, saturation-controlled series pass transistor, and dual comparators for reset and early-warning sensing. Its reset threshold is adjustable via RADJ pin (typ. 3.10 V), and delay timing is set by capacitor on D pin. The EN pin enables full shutdown with sub-1 µA quiescent current.
It implements reverse polarity protection, thermal shutdown, and current limiting. The SO and RO pins provide open-collector outputs with internal 20 kΩ pull-ups to Q, supporting fault signaling without external pull-up resistors. Input compensation (I pin) and output stabilization (Q pin) require specified ceramic capacitors per functional range table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±2% - stable supply for 3.3 V microcontrollers and CAN transceivers under load and temperature variation |
| Max Output Current | 150 mA - sufficient for powering small MCU cores, sensors, and interface ICs in automotive ECUs |
| Input Voltage Range | 4.4 V to 45 V - accommodates cold-crank (4.4 V) and load-dump (45 V) conditions in 12 V automotive systems |
| Quiescent Current (ON) | Typ. 120 µA - enables ultra-low-power always-on monitoring circuits without battery drain |
| Shutdown Current | <1 µA - meets ISO 16750-2 sleep-mode leakage requirements for gateway and body modules |
| Dropout Voltage | Typ. 250 mV @ 150 mA - maintains regulation down to VIN = 3.55 V, critical during cranking |
| Operating Junction Temp | –40°C to +150°C - qualified for under-hood placement per AEC-Q100 Grade 0 |
Pinout & Package
Package: PG-DSO-14 (14-pin dual small outline package with exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 RADJ | Reset threshold adjust | Connect external resistor divider to set custom reset point; tie to GND for internal 3.10 V threshold |
| 2 D | Reset delay timing | Connect ceramic capacitor to GND to program power-on/undervoltage reset delay time |
| 3,4,5 GND | Ground reference & thermal path | All three pins must be connected to PCB ground plane and heatsink area for thermal stability |
| 6 EN | Enable control | High-active logic input; drives regulator ON/OFF; connect to I pin if unused |
| 7 RO | Reset output | Open-collector output active-low; internally pulled up to Q via 20 kΩ; signals reset assertion |
| 8 SO | Sense output | Open-collector output active-low; internally pulled up to Q via 20 kΩ; signals undervoltage on SI |
| 9 Q | Regulated output | 3.3 V regulated supply; requires local ceramic capacitor (CQ) with specified ESR for loop stability |
| 10,11,12 GND | Ground reference & thermal path | Additional GND connections for noise immunity and thermal dissipation; connect to same plane as pins 3–5 |
| 13 I | Input compensation | Capacitor-to-GND connection suppresses line transients; improves transient response and stability |
| 14 SI | Sense input | Monitors external voltage (e.g., battery or another rail); asserts SO when below threshold |
Key Features
| Feature | Design Value |
|---|---|
| Programmable reset delay | Set via external capacitor on D pin - enables precise synchronization with system boot sequence |
| Adjustable reset threshold | Configured via RADJ pin voltage divider - supports custom brown-out detection for mixed-voltage subsystems |
| Early warning sense comparator | SI input monitors arbitrary voltage rail and asserts SO - enables predictive fault handling before main supply collapse |
| Reverse polarity protection | Integrated circuitry blocks conduction if VIN is reversed - eliminates need for external series diode in battery-connected designs |
| AEC-Q100 qualified | Grade 0 (–40°C to +150°C) qualification - validated for engine compartment and transmission control unit deployment |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera ECU |
|---|---|
|
Use Scenario: Powering microcontroller, LIN transceiver, and door lock actuator drivers in always-on BCM with battery backup. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying core logic; EN pin synchronized with ignition state; RO signals MCU reset during battery sag. Use Value: Maintains regulation down to 4.4 V input during cold crank; <1 µA shutdown current prevents parasitic drain over weeks of vehicle inactivity. |
Use Scenario: Supplying image signal processor and serializer in rear-view camera module mounted near exhaust. IC Role / Device Role / Timing Role: Regulator with thermal shutdown and early warning (SO) tied to camera sensor supply; SI monitors 5 V rail for pre-failure alert. Use Value: Operates reliably at 150°C junction temperature; sense comparator triggers diagnostic log before thermal shutdown occurs. |
| Automotive Gateway Controller | Electric Power Steering (EPS) Sensor Interface |
|
Use Scenario: Providing isolated 3.3 V rail for CAN FD controller and secure boot ROM in multi-bus gateway. IC Role / Device Role / Timing Role: LDO with programmable reset delay (D pin) ensures CAN controller initializes only after power stabilizes post-ignition. Use Value: Reset delay capacitor allows 10–100 ms tuning to match bootloader timing; 45 V max input withstands load dump without clamping. |
Use Scenario: Powering torque and position sensor signal conditioning circuitry in EPS motor housing. IC Role / Device Role / Timing Role: Low-noise 3.3 V source with reverse polarity protection; RADJ configured for 3.0 V reset to guard against sensor ADC errors. Use Value: Integrated reverse polarity protection eliminates discrete diode, reducing BOM count and PCB footprint in space-constrained EPS assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | 3.3 V, 300 mA, 220 mV dropout, no reset/sense/EN, SOT-23-5 | Lacks reset, sense, and programmable delay; not AEC-Q100 qualified | Select only for non-automotive, cost-sensitive, low-feature applications where thermal and reliability specs are relaxed. |
| TPS7B8733QKVURQ1 | 3.3 V, 500 mA, 300 mV dropout, integrated watchdog, AEC-Q100 Grade 1 (–40°C to +125°C) | Higher current, includes watchdog timer but no early-warning sense comparator or RADJ-adjustable reset | Prefer when higher output current and watchdog functionality outweigh need for SI-based predictive monitoring. |
Compared with TLV73333PDBVR and TPS7B8733QKVURQ1, the TLE42994GMV33 uniquely combines AEC-Q100 Grade 0 operation, programmable reset delay, adjustable reset threshold, and dedicated early-warning sense comparator - making it optimal for safety-critical, thermally demanding automotive subsystems requiring layered fault detection.
Availability
TLE42994GMV33 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera ECUs, gateway controllers, and electric power steering sensor interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for TLE42994GMV33 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, and industrial control ICs, with global manufacturing and quality certification aligned to ISO/TS 16949.
The TLE42994GMV33 belongs to Infineon's OPTIREG™ Linear family, engineered specifically for automotive power rails requiring high reliability, wide input range, and integrated system-monitoring features under extreme thermal and electrical stress.
FAQ
What is the minimum input voltage required for regulation at full 150 mA load?
The TLE42994GMV33 maintains 3.3 V regulation down to an input voltage of 3.55 V at 150 mA due to its 250 mV typical dropout voltage. Below this, output voltage drops linearly with input. This meets ISO 16750-2 cold-crank specification (4.4 V min) with margin, as dropout is measured at steady-state load, not transient.
Can the SO (sense output) pin monitor voltages other than the input supply?
Yes - the SI (sense input) pin accepts any DC voltage between –0.3 V and 7 V, enabling monitoring of auxiliary rails such as 5 V sensor supplies or 12 V lighting circuits. When SI falls below the threshold set by RADJ, SO asserts low. This allows cross-rail fault detection independent of the LDO's own input.
Is the exposed thermal pad on the PG-DSO-14 package electrically connected?
Yes - the exposed pad is internally connected to GND and must be soldered to a PCB copper pour tied to the system ground plane. It serves both thermal dissipation and electrical grounding; floating or insulated mounting degrades thermal performance and may cause instability or premature thermal shutdown.
How does the reset delay capacitor affect system startup timing?
The capacitor on the D pin sets the time constant for both power-on reset (POR) and undervoltage reset (UVR) delays. A 100 nF ceramic capacitor yields ~50 ms delay; values from 10 nF to 1 µF are supported. Delay begins after VIN exceeds 4.4 V and ends when RO transitions high, synchronizing MCU release with stable 3.3 V rail.
TLE42994GMV33XUMA3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 14-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):
- 100 µA
- Current - Supply (Max):
- 2 mA
- PSRR:
- 66dB (100Hz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-14
TLE42994GMV33XUMA3 FAQ
1.How can I place an order for TLE42994GMV33XUMA3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42994GMV33XUMA3 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 TLE42994GMV33XUMA3 reliable?
The price and inventory of TLE42994GMV33XUMA3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42994GMV33XUMA3 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42994GMV33XUMA3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42994GMV33XUMA3?
TLE42994GMV33XUMA3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42994GMV33XUMA3 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 TLE42994GMV33XUMA3?
For technical support, including TLE42994GMV33XUMA3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42994GMV33XUMA3 requirements.
6.How does Aetrix verify that TLE42994GMV33XUMA3 is sourced from the original manufacturer or authorized distributors?
All TLE42994GMV33XUMA3 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 TLE42994GMV33XUMA3 meets industry standards.
7.What is the process for return or replacement of TLE42994GMV33XUMA3?
All TLE42994GMV33XUMA3 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42994GMV33XUMA3, 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 TLE42994GMV33XUMA3 part is unused and in its original packaging.
Return procedure for TLE42994GMV33XUMA3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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