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

Infineon Technologies TLE4252DATMA1

Name: TLE4252DATMA1
Brand: Infineon Technologies
SKU: TLE4252DATMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4252DATMA1

Manufacturer:: Infineon Technologies

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

Package:: TO-252-5, DPAK (4 Leads + Tab), TO-252AD

Datasheet:: TLE4252DATMA1.pdf

Description:: IC REG LIN POS ADJ 250MA TO252-5

Quantity:: RFQ Add To RFQ list

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Inventory:12,386

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Product details

Overview

TLE4252DATMA1 from Infineon is a monolithic low-dropout voltage tracking regulator in PG-TO252-5 package, designed for automotive sensor supply and off-board load switching. It delivers up to 250 mA output current with ≤±10 mV tracking error versus reference voltage, operates from 3.5 V to 40 V input, and supports 1.5 V–40 V adjust input range across –40°C to 150°C junction temperature.

For engineers reviewing the TLE4252DATMA1 datasheet, TLE4252DATMA1 pinout, TLE4252DATMA1 application, or TLE4252DATMA1 equivalent, key selection criteria include output tracking accuracy (±10 mV), reverse polarity protection, enable-controlled standby mode (2 µA quiescent current), short-circuit protection to GND/battery, and AEC-Q100 qualification for under-hood automotive use.

Technical Context

The TLE4252DATMA1 implements a precision error amplifier-based tracking architecture where the output Q replicates the voltage applied at ADJ with high fidelity, independent of input VI as long as VI exceeds VADJ + Vdr (max 600 mV). Its internal protection logic monitors overtemperature, short circuit, and reverse polarity conditions without external components.

It features dual-mode operation: active regulation with 10–25 mA quiescent current (depending on load), and ultra-low-power standby (≤2 µA) when EN is pulled low. The ADJ input accepts either direct reference voltage or resistor-divided feedback, enabling flexible replication of 5 V, 3.3 V, or custom rail voltages in multi-rail ECU subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
Output tracking accuracy	±10 mV (typ.) - ensures output matches ADJ reference within 0.2% for 4.5–26 V input, critical for sensor biasing stability
Max output current	250 mA (min.) - sufficient to drive multiple off-board sensors or small solenoids without external boost
Drop voltage	280–600 mV @ 200 mA - enables regulation even with low headroom, e.g., 5.5 V input → 5 V output
Quiescent current (standby)	≤2 µA - preserves battery life during vehicle sleep modes
Operating input range	3.5–40 V - accommodates cold-crank (4.5 V) and load-dump (40 V) transients per ISO 7637-2
Junction temperature range	–40°C to 150°C - qualified for engine compartment placement per AEC-Q100 Grade 0
Enable threshold	V_EN,on ≥ 2 V, V_EN,off ≤ 0.8 V - compatible with standard 3.3 V/5 V logic without level-shifting

Pinout & Package

Package: PG-TO252-5 (TO-252-5), thermally enhanced surface-mount package with exposed drain pad connected to Pin 3 (GND) for heatsinking.

Pin/Terminal	Circuit Role	Design Meaning
1 (I)	Supply voltage input	Battery or pre-regulated DC input; withstands –42 V to +45 V transient; internally current-limited
2 (EN)	Enable control input	Active-high logic input; pulls down to 0 V disables regulator and reduces I_Q to ≤2 µA
3 (GND)	Power ground / thermal pad	Primary return path and thermal interface; must be soldered to large copper area for R_thJA ≤ 55 K/W
4 (ADJ)	Reference voltage input	Accepts 1.5–40 V reference directly or via resistor divider; bias current ≤0.5 µA minimizes divider error
5 (Q)	Tracking output	Regulated output sourcing up to 250 mA; requires ≥10 µF/≤5 Ω ESR capacitor to GND for stability

Key Features

Feature	Design Value
High-accuracy voltage tracking	±10 mV error over full temp/load range ensures sensor excitation or ADC reference rails remain stable
Integrated fault protection	Short-circuit to GND/battery, overtemperature, and reverse polarity protection eliminate need for external diodes/fuses
Ultra-low standby current	≤2 µA shutdown current enables compliance with automotive ISO 16750-2 sleep-mode leakage limits
Wide input voltage capability	3.5–40 V operation covers cold-crank, normal, and load-dump conditions without external clamping
AEC-Q100 qualified	Grade 0 qualification (–40°C to +150°C) confirms reliability for under-hood engine management applications

Applications

Engine Coolant Temperature Sensor Supply

Off-Board Fuel Injector Driver Power Switch

Use Scenario: Supplies regulated 5 V to NTC-based coolant temperature sensor located in engine block, exposed to vibration and thermal cycling.

IC Role / Device Role / Timing Role: Precision voltage tracker replicating main ECU 5 V rail with ±10 mV accuracy to maintain sensor linearity and ADC resolution.

Use Value: Eliminates drift-induced calibration errors; built-in short-circuit protection prevents latch-up during connector mating/unmating.

Use Scenario: Powers low-side driver IC for port fuel injector mounted on intake manifold, requiring clean, protected 12 V supply.

IC Role / Device Role / Timing Role: Protected power switch enabling/disabling injector supply via microcontroller GPIO on EN pin.

Use Value: Reverse polarity immunity prevents damage during service; 250 mA output sustains injector coil hold current without thermal derating.

Secondary 3.3 V Rail for CAN Transceiver

High-Precision Reference Voltage Replication

Use Scenario: Generates isolated 3.3 V supply for automotive CAN FD transceiver in body control module, decoupled from noisy main 5 V rail.

IC Role / Device Role / Timing Role: Tracking regulator using 3.3 V reference from main LDO to replicate stable local rail.

Use Value: PSRR > 60 dB at 100 Hz suppresses ripple from shared power domain; thermal shutdown prevents failure during prolonged bus faults.

Use Scenario: Replicates 2.5 V reference from high-precision DAC to bias analog front-end of knock sensor amplifier.

IC Role / Device Role / Timing Role: Low-noise voltage follower with <10 mV tracking error, minimizing gain error in signal chain.

Use Value: ADJ input bias current ≤0.5 µA avoids loading reference source; 150°C max Tj allows placement near exhaust-manifold-mounted sensors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage tracking regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV71718PDRVR	Fixed 1.8 V output; no ADJ pin; max 150 mA; 1.7–5.5 V input; not AEC-Q100 qualified	Suitable only for board-level 1.8 V logic rails, not off-board sensor tracking	Select only for non-automotive, low-current, fixed-voltage use cases with no reverse polarity or load-dump stress
TPS7B8133QDGNRQ1	Fixed 3.3 V output; 250 mA; 1.6–40 V input; AEC-Q100 Grade 1; no tracking capability	Provides robust 3.3 V supply but cannot replicate arbitrary reference voltages like 5 V or 2.5 V	Choose when a stable fixed rail is sufficient and ADJ-based tracking is unnecessary

Compared with TLV71718PDRVR and TPS7B8133QDGNRQ1, the TLE4252DATMA1 uniquely supports adjustable voltage tracking with ±10 mV accuracy, reverse polarity protection, and AEC-Q100 Grade 0 qualification-making it the only option for precision off-board sensor biasing under harsh automotive transients.

Availability

TLE4252DATMA1 is available at Aetrix Electronics and suitable for automotive sensor supply, off-board load switching, and secondary ECU voltage rails requiring stable component supply across extended temperature and voltage stress conditions.

Supply support for TLE4252DATMA1 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 electronics, and industrial control ICs, with global manufacturing and qualification infrastructure.

The OPTIREG™ linear product line delivers AEC-Q100-qualified voltage regulators optimized for automotive subsystems requiring high reliability, wide input range, and integrated protection-especially for engine, transmission, and chassis control units.

FAQ

What is the minimum required output capacitor for stable operation?

A minimum 10 µF ceramic or tantalum capacitor with ESR ≤5 Ω at 10 kHz must be placed between Pin 5 (Q) and Pin 3 (GND). This ensures phase margin and prevents ringing during load transients. Larger capacitance improves ripple rejection but does not reduce ESR requirement.

Can the TLE4252DATMA1 track a 2.5 V reference while powered from 12 V battery?

Yes. With V_ADJ = 2.5 V and V_I = 12 V, the device maintains tracking accuracy of ±10 mV (±0.4%) across –40°C to 150°C. The drop voltage remains ≤600 mV, ensuring stable 2.5 V output even at 200 mA load.

How does reverse polarity protection operate during service disconnect?

When battery terminals are reversed (VI negative), the internal protection circuit blocks conduction from Q to I, limiting reverse current to ≤5 mA. This prevents damage to downstream sensors or microcontrollers without requiring external series diodes.

Is an external pull-down resistor needed on the EN pin?

No. The EN pin includes an internal 1.5 MΩ pull-down resistor (R_EN). When left unconnected, EN defaults to logic low, placing the device in standby mode with ≤2 µA current draw-ideal for fail-safe default behavior.

TLE4252DATMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OPTIREG™

Package/Case:: TO-252-5, DPAK (4 Leads + Tab), TO-252AD

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Adjustable

Number of Regulators:: 1

Voltage - Input (Max):: 40V

Voltage - Output (Min/Fixed):: Tracking

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.6V @ 200mA

Current - Output:: 250mA

Current - Quiescent (Iq):: 150 µA

Current - Supply (Max):: 25 mA

PSRR:: 60dB (100Hz)

Control Features:: Enable

Protection Features:: 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-TO252-5-11

TLE4252DATMA1 FAQ

1.How can I place an order for TLE4252DATMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4252DATMA1 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 TLE4252DATMA1 reliable?

The price and inventory of TLE4252DATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4252DATMA1 is usually 5 days.

3.What payment methods are accepted for TLE4252DATMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4252DATMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4252DATMA1?

TLE4252DATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4252DATMA1 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 TLE4252DATMA1?

For technical support, including TLE4252DATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4252DATMA1 requirements.

6.How does Aetrix verify that TLE4252DATMA1 is sourced from the original manufacturer or authorized distributors?

All TLE4252DATMA1 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 TLE4252DATMA1 meets industry standards.

7.What is the process for return or replacement of TLE4252DATMA1?

All TLE4252DATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4252DATMA1, 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 TLE4252DATMA1 part is unused and in its original packaging.

Return procedure for TLE4252DATMA1:

1.Submit a request within 90 days.

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

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