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

Infineon Technologies TLE42754EXUMA2

Name: TLE42754EXUMA2
Brand: Infineon Technologies
SKU: TLE42754EXUMA2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE42754EXUMA2

Manufacturer:: Infineon Technologies

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

Package:: 14-LSSOP (0.154", 3.90mm Width) Exposed Pad

Datasheet:: TLE42754EXUMA2.pdf

Description:: IC REG LINEAR 5V 450MA SSOP-14-2

Quantity:: RFQ Add To RFQ list

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Inventory:4,681

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Product details

Overview

TLE42754EXUMA2 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-TO252-5 (D-PAK) package, designed for automotive power supply rails. It delivers a regulated 5.0 V ±2% output at up to 450 mA, supports input voltages from 5.5 V to 42 V, features programmable power-on reset delay via external capacitor, and operates across -40°C to +150°C junction temperature.

For engineers reviewing the TLE42754EXUMA2 datasheet, TLE42754EXUMA2 pinout, TLE42754EXUMA2 application, or TLE42754EXUMA2 equivalent, key selection criteria include its AEC-Q100 qualification, reverse polarity protection, reset output with 1 V minimum sink capability, dropout voltage under 500 mV at full load, and thermal shutdown behavior at 150°C.

Technical Context

The TLE42754EXUMA2 uses an internal NPN series pass transistor with saturation control to maintain regulation across wide load and input conditions. Its control amplifier compares a precision bandgap reference to a resistive divider of the output, enabling stable 5 V regulation even with ±2% tolerance and line/load regulation better than 10 mV/V and 15 mV/A respectively.

Reset functionality is implemented as an open-collector output (RO) activated when V_Q falls below 4.65 V (typ.), with delay timing set by capacitor on pin D. Internal protection includes current limiting (450 mA nominal trip), overtemperature shutdown (T_j ≥ 150°C), and reverse polarity tolerance down to -42 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Output voltage	5.0 V ±2% - ensures compatibility with 5 V microcontrollers and CAN transceivers in automotive ECUs.
Max output current	450 mA - sufficient to power multiple downstream logic ICs or sensors without external boost stages.
Input voltage range	5.5 V to 42 V - supports cold-crank (5.5 V) and load-dump (42 V) conditions per ISO 7637-2.
Dropout voltage	≤500 mV @ 450 mA - enables operation with minimal headroom during battery sag.
Reset threshold	V_Q,rt = 4.65 V (typ.) - provides reliable brown-out detection before MCU lockup.
Junction temperature	-40°C to +150°C - qualified for under-hood placement in engine control modules.
ESD robustness	HBM ±2 kV, CDM ±750 V - meets AEC-Q100 stress test requirements for production reliability.

Pinout & Package

Package: PG-TO252-5 (D-PAK), thermally enhanced with exposed tab connected to GND. Pin 3 (GND) and TAB are internally tied to system ground for optimal heat dissipation and noise immunity.

Pin/Terminal	Circuit Role	Design Meaning
1 (I)	Input	Primary VIN connection; requires local ceramic decoupling to suppress line transients.
2 (RO)	Reset output	Open-collector signal indicating undervoltage condition; needs external pull-up to monitored rail.
3 (GND)	Ground	Reference node for regulator and reset circuitry; electrically tied to exposed thermal tab.
4 (D)	Reset delay	Capacitor connection point to set power-on reset timeout; value directly sets delay time.
5 (Q)	Output	Regulated 5 V supply; requires ≥22 µF output capacitor with ≤3 Ω ESR for loop stability.

Key Features

Feature	Design Value
Programmable reset delay	External capacitor on pin D sets delay from milliseconds to seconds-enables precise sequencing with MCU boot timelines.
Reverse polarity protection	Withstands -42 V input-eliminates need for external series diode in battery-reversed fault scenarios.
Low quiescent current	Typ. 120 µA - minimizes standby power loss in always-on vehicle modules (e.g., body controllers).
Integrated current limiting	450 mA foldback limit - prevents thermal runaway during short-circuit events without external components.
Overtemperature shutdown	Auto-recovery after cooldown - maintains functional safety without latch-up in high-ambient environments.

Applications

Engine Control Unit (ECU)

Body Control Module (BCM)

Use Scenario: Powers 5 V microcontroller, CAN transceiver, and analog sensor interface in gasoline/diesel engine management systems.

IC Role / Device Role / Timing Role: Primary 5 V LDO supplying critical digital and communication subsystems with brown-out reset signaling.

Use Value: Maintains regulation during cold-crank (5.5 V input) and rejects load-dump spikes up to 42 V without external clamping.

Use Scenario: Supplies door module logic, LIN transceivers, and LED drivers in centralized body electronics architecture.

IC Role / Device Role / Timing Role: System-level voltage supervisor with programmable reset delay aligned to MCU initialization sequence.

Use Value: Enables fail-safe power sequencing via external capacitor tuning, reducing firmware dependency on reset timing.

Advanced Driver Assistance Systems (ADAS) Camera ECU

Electric Power Steering (EPS) Control Unit

Use Scenario: Provides clean 5 V rail to image sensor, ISP, and serial interface in front-facing ADAS camera modules.

IC Role / Device Role / Timing Role: Low-noise, thermally robust LDO with integrated reverse polarity and overtemp protection.

Use Value: Eliminates need for discrete protection devices, reducing BOM count and PCB area in space-constrained camera housings.

Use Scenario: Regulates 5 V supply for torque sensor interface, motor driver logic, and safety monitoring circuits in EPS systems.

IC Role / Device Role / Timing Role: Safety-critical power conditioner with AEC-Q100 Grade 0 qualification and reset signaling for ASIL-B compliance.

Use Value: Guarantees deterministic reset behavior during battery voltage dips, preventing unintended steering actuation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-dropout automotive voltage regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV73350PDBVR	300 mA max output, no reset function, SOT-23-5 package, lower thermal performance (R_thJA ≈ 210 K/W).	Limited to non-safety-critical, low-power modules where reset signaling is handled externally.	Select when board space is constrained and reset is managed by MCU GPIO or separate supervisor IC.
TPS7B6950QDCYRQ1	250 mA output, fixed 5 V, integrated watchdog timer, higher quiescent current (25 µA vs. 120 µA typ.), same PG-TO252-5 package.	Suitable for systems requiring independent watchdog supervision alongside regulation.	Prefer when dual-function (regulation + watchdog) reduces component count, accepting lower current drive.

Compared with TLV73350PDBVR and TPS7B6950QDCYRQ1, the TLE42754EXUMA2 uniquely combines 450 mA drive, programmable reset delay, reverse polarity tolerance to -42 V, and AEC-Q100 Grade 0 qualification-making it optimal for high-reliability engine and chassis control nodes where fault resilience is mandatory.

Availability

TLE42754EXUMA2 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera ECUs requiring stable component supply under automotive-grade quality and traceability.

Supply support for TLE42754EXUMA2 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 AEC-Q100-compliant validation infrastructure.

The TLE42754EXUMA2 belongs to Infineon's OPTIREG™ linear family, engineered specifically for demanding automotive power rails where reliability under voltage transients, thermal stress, and reverse polarity faults is non-negotiable.

FAQ

What is the minimum input voltage required for regulation?

The TLE42754EXUMA2 requires a minimum input voltage of 5.5 V to maintain 5.0 V output regulation under all load and temperature conditions. Below this, the device enters dropout mode and output voltage drops linearly with input. This threshold ensures compatibility with automotive cold-crank events defined in ISO 16750-2.

Can the reset output (RO) drive a microcontroller's external reset pin directly?

Yes-the RO pin is an open-collector NPN output rated for 25 V maximum and capable of sinking ≥5 mA at V_RO ≤ 0.4 V. It requires only an external pull-up resistor (typically 10 kΩ to 5 V) to interface directly with standard CMOS reset inputs, eliminating level-shifting circuitry.

Is an input capacitor mandatory, and what value is recommended?

An input capacitor (C_I) is strongly recommended-typically 1 µF X7R ceramic placed within 5 mm of pins I and GND-to suppress high-frequency line noise and improve transient response. While not strictly mandatory for basic operation, omission risks instability during load steps or ISO 7637-2 pulse testing.

How does the device behave during reverse polarity connection?

When input polarity is reversed (VIN < 0 V), the TLE42754EXUMA2 blocks current flow and draws < 100 µA until the fault is removed. It withstands -42 V continuously without damage or latch-up, enabling use in vehicles where battery terminal misconnection is a known field risk.

TLE42754EXUMA2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OPTIREG™

Package/Case:: 14-LSSOP (0.154", 3.90mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 42V

Voltage - Output (Min/Fixed):: 5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.5V @ 300mA

Current - Output:: 450mA

Current - Quiescent (Iq):: 200 µA

Current - Supply (Max):: 25 mA

PSRR:: 60dB (100Hz)

Control Features:: Reset

Protection Features:: Over Current, Over Temperature, Reverse Polarity

Operating Temperature:: -40°C ~ 150°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SSOP-14-2

TLE42754EXUMA2 FAQ

1.How can I place an order for TLE42754EXUMA2 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE42754EXUMA2 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 TLE42754EXUMA2 reliable?

The price and inventory of TLE42754EXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42754EXUMA2 is usually 5 days.

3.What payment methods are accepted for TLE42754EXUMA2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42754EXUMA2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE42754EXUMA2?

TLE42754EXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE42754EXUMA2 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 TLE42754EXUMA2?

For technical support, including TLE42754EXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42754EXUMA2 requirements.

6.How does Aetrix verify that TLE42754EXUMA2 is sourced from the original manufacturer or authorized distributors?

All TLE42754EXUMA2 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 TLE42754EXUMA2 meets industry standards.

7.What is the process for return or replacement of TLE42754EXUMA2?

All TLE42754EXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42754EXUMA2, 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 TLE42754EXUMA2 part is unused and in its original packaging.

Return procedure for TLE42754EXUMA2:

1.Submit a request within 90 days.

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

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