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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Infineon Technologies TLE4299GMV33XUMA1

Name: TLE4299GMV33XUMA1
Brand: Infineon Technologies
SKU: TLE4299GMV33XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4299GMV33XUMA1

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: TLE4299GMV33XUMA1.pdf

Description:: IC REG LIN 3.3V 150MA DSO14-30

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Product details

Overview

TLE4299GMV33 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 (INH), open-collector reset output (RO), and sense input (SI) for early warning functionality - designed for automotive microcontroller power supply under wide input (4.4–45 V) and temperature (−40°C to +150°C) conditions.

For engineers reviewing the TLE4299GMV33 datasheet, TLE4299GMV33 pinout, TLE4299GMV33 application, or TLE4299GMV33 equivalent, this device supports AEC-Q100-qualified ECU subsystems requiring ultra-low quiescent current (<1 µA in inhibit-off mode), adjustable reset delay via external capacitor, and battery voltage supervision down to V_Q = 1 V.

Technical Context

The TLE4299GMV33 employs a PNP-based LDO architecture enabling operation down to 1 V output while maintaining regulation across 4.4–45 V input. Its internal bandgap reference and current-saturation control ensure ±2% output accuracy and robust short-circuit/overtemperature protection.

It integrates three supervisory functions: (1) reset generation with externally adjustable delay (via capacitor on D pin) and threshold (via resistor divider on RADJ), (2) early warning via SI/SO hysteresis sensing, and (3) inhibit-controlled shutdown with sub-µA quiescent current - all synchronized to maintain µC reliability in start-stop and cold-crank automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Output voltage	3.3 V ±2% - ensures stable MCU core/logic supply within automotive-grade tolerance limits.
Max output current	150 mA - sufficient for powering 32-bit microcontrollers and peripheral logic in body control modules.
Quiescent current (inhibit off)	<1 µA - enables zero-power standby during engine-off periods without draining battery.
Input voltage range	4.4 V to 45 V - supports full automotive battery range including load dump transients.
Reset output behavior	Open-collector RO, internally pulled up to Q via 20 kΩ - allows wired-OR reset bus integration with other system supervisors.
Operating junction temp	−40°C to +150°C - qualified per AEC-Q100 Grade 0 for under-hood placement.
Dropout voltage	Typ. 250 mV @ 150 mA - enables regulation even during cold-crank (6 V battery).

Pinout & Package

Package: PG-DSO-14 (14-pin exposed-pad SOIC), RoHS-compliant, thermally enhanced for automotive under-hood use.

Pin/Terminal	Circuit Role	Design Meaning
1	RADJ	Reset threshold adjust input - sets V_RESET via external resistor divider; connects to GND if unused.
2	D	Reset delay capacitor node - charges/discharges to define reset assertion/deassertion timing; connects to GND via C_D.
3, 4, 5	GND	Ground terminals - multiple pins reduce impedance and improve thermal dissipation in high-current paths.
6	INH	Inhibit control input - high-level signal enables regulator; tied to I pin if not used.
7	RO	Reset open-collector output - asserts low when V_Q falls below threshold; internal 20 kΩ pull-up to Q.
8	SO	Sense output - open-collector early-warning signal driven low when SI voltage drops below V_SI,low.
9	Q	Regulated 3.3 V output - requires 22 µF output capacitor with ESR 0.4–3.7 Ω for stability.
10, 11, 12	GND	Additional ground terminals - enhance thermal conduction and noise immunity in multi-layer PCB layouts.
13	I	Input voltage pin - must be decoupled directly at IC with ceramic capacitor to suppress high-frequency noise.
14	SI	Sense input - monitors external voltage (e.g., battery); connects to Q if unused.

Key Features

Feature	Design Value
Adjustable reset delay & threshold	External capacitor (D pin) and resistor divider (RADJ pin) allow precise tailoring of reset timing and trip point per ECU requirements.
Early warning supervision	SI/SO hysteresis circuit provides pre-reset alert at configurable battery voltage level - enables graceful firmware shutdown before reset.
Inhibit-controlled ultra-low standby	INH pin reduces quiescent current to <1 µA - critical for always-on vehicle networks (e.g., CAN wake-up receivers).
AEC-Q100 Grade 0 qualification	Validated for −40°C to +150°C operation with full electrical characterization - suitable for engine compartment mounting.
Reverse polarity protection	Withstands −40 V input without damage - eliminates need for external reverse-battery diode in cost-sensitive designs.

Applications

Body Control Module (BCM)

Engine Control Unit (ECU)

Use Scenario: Powering 32-bit MCU and CAN transceivers in door module with wake-on-LIN capability.

IC Role / Device Role / Timing Role: Primary 3.3 V LDO with inhibit-driven sleep mode and early battery voltage warning.

Use Value: Enables <1 µA system standby current and predictive low-battery shutdown before brownout-induced MCU reset.

Use Scenario: Supplying safety-critical engine management MCU during cold-crank (6 V battery) and load dump (45 V).

IC Role / Device Role / Timing Role: Regulated 3.3 V source with reset assertion at V_Q < 2.9 V and adjustable delay to avoid false triggers.

Use Value: Maintains regulation down to 250 mV dropout and asserts clean reset only after sustained undervoltage - improves functional safety compliance.

Advanced Driver Assistance System (ADAS) Camera ECU

Electric Power Steering (EPS) Control Unit

Use Scenario: Powering image signal processor and serializer in rear-view camera with thermal monitoring.

IC Role / Device Role / Timing Role: 3.3 V supply with overtemperature shutdown and reset coordination with main SoC.

Use Value: Integrated thermal protection prevents thermal runaway; RO output synchronizes camera reset with host processor.

Use Scenario: Providing fault-tolerant 3.3 V rail for torque controller MCU and motor gate drivers.

IC Role / Device Role / Timing Role: Dual-grounded LDO with redundant reset signaling and inhibit control for ASIL-B compliance.

Use Value: Multiple GND pins reduce ground bounce; INH enables coordinated power-down during EPS fault recovery sequences.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4274G	Fixed 5 V output, no inhibit or reset outputs, 150 mA rating, same PG-DSO-8 package.	Lacks early warning, reset, and inhibit - suitable only for non-supervised 5 V loads.	Select when reset supervision and ultra-low standby are unnecessary and 5 V is required.
TLV73333PDBVR	3.3 V, 300 mA, 250 mV dropout, but no AEC-Q100 qualification, no inhibit/reset, SOT-23-5 package.	Not automotive-qualified; lacks integrated supervision features and thermal robustness.	Consider only for non-automotive industrial prototypes where cost and size outweigh qualification needs.

Compared with TLE4299GMV33, the TLE4274G omits critical automotive supervision features but offers pin compatibility for legacy 5 V designs, while the TLV73333PDBVR trades qualification and integration for smaller size and higher current - neither matches the combined inhibit, reset, and early warning capability in an AEC-Q100 package.

Availability

TLE4299GMV33 is available at Aetrix Electronics and suitable for body control modules, engine control units, ADAS camera ECUs, and electric power steering systems requiring stable component supply across extended automotive temperature and voltage ranges.

Supply support for TLE4299GMV33 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, integrated supervision, and seamless integration with microcontroller-based ECUs.

FAQ

What is the minimum input voltage required for regulation?

The TLE4299GMV33 maintains regulation down to 4.4 V input at full load and remains functional (with reset active) down to 1 V input. Below 4.4 V, output voltage follows input minus dropout (≈250 mV), but the regulated 3.3 V output is guaranteed only above 4.4 V across temperature and load.

How is the reset delay time calculated?

Reset delay is set by an external capacitor (C_D) connected between pin D and GND. The internal constant-current source (typ. 1.2 µA) charges/discharges C_D; delay time t_delay ≈ C_D × 0.8 V / 1.2 µA. For example, 100 nF yields ~67 ms delay. Exact values depend on process variation and temperature.

Can the sense input (SI) monitor voltages other than battery?

Yes - SI accepts any DC voltage between −0.3 V and 45 V. Using an external resistor divider, it can supervise auxiliary rails (e.g., 12 V sensor supply or 5 V analog domain). The SO output asserts low when SI falls below V_SI,low, and returns high when SI exceeds V_SI,high, with built-in hysteresis.

Is the PG-DSO-14 package thermally compatible with manual soldering?

No - the PG-DSO-14 has an exposed thermal pad requiring controlled reflow profile (peak 260°C, 60 s max above 217°C) and proper stencil design for solder paste volume. Manual soldering risks insufficient pad wetting and thermal delamination; reflow is mandatory for production and qualification compliance.

TLE4299GMV33XUMA1 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:: Discontinued at Digi-Key

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):: 2 mA

PSRR:: 66dB (100Hz)

Control Features:: Inhibit, 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-14-30

TLE4299GMV33XUMA1 FAQ

1.How can I place an order for TLE4299GMV33XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4299GMV33XUMA1 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 TLE4299GMV33XUMA1 reliable?

The price and inventory of TLE4299GMV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4299GMV33XUMA1 is usually 5 days.

3.What payment methods are accepted for TLE4299GMV33XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4299GMV33XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4299GMV33XUMA1?

TLE4299GMV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4299GMV33XUMA1 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 TLE4299GMV33XUMA1?

For technical support, including TLE4299GMV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4299GMV33XUMA1 requirements.

6.How does Aetrix verify that TLE4299GMV33XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4299GMV33XUMA1 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 TLE4299GMV33XUMA1 meets industry standards.

7.What is the process for return or replacement of TLE4299GMV33XUMA1?

All TLE4299GMV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4299GMV33XUMA1, 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 TLE4299GMV33XUMA1 part is unused and in its original packaging.

Return procedure for TLE4299GMV33XUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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