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

Infineon Technologies TLE4250GNTSA1

Name: TLE4250GNTSA1
Brand: Infineon Technologies
SKU: TLE4250GNTSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE4250GNTSA1

Manufacturer:: Infineon Technologies

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

Package:: 6-SMD (5 Leads), Gull Wing

Datasheet:: TLE4250GNTSA1.pdf

Description:: IC REG LIN POS ADJ 50MA SCT595

Quantity:: RFQ Add To RFQ list

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Inventory:4,642

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Product details

Overview

TLE4250GNTSA1 from Infineon Technologies is a monolithic low-drop voltage tracker IC designed for precision sensor supply in automotive power domains. It delivers 50 mA output current with ±0.5% tracking accuracy against an external reference (e.g., 5 V MCU port), operates from 4–40 V input, and features integrated short-circuit, overtemperature, and reverse-polarity protection.

For engineers reviewing the TLE4250GNTSA1 datasheet, TLE4250GNTSA1 pinout, TLE4250GNTSA1 application, or TLE4250GNTSA1 equivalent, key selection criteria include adjust-input enable logic, 100–300 mV dropout at 10 mA, 10–20 µA standby current, ESR-sensitive 1 µF output capacitor requirement, and SCT-595 package thermal limits (R_thJA = 99 K/W).

Technical Context

The TLE4250GNTSA1 implements a precision error amplifier-based tracking architecture that compares the output voltage (Q) to the reference voltage applied at the ADJ pin, driving an internal pass transistor to maintain V_Q = V_ADJ ±25 mV across 6–40 V input range and 1–50 mA load. Its enable function is integrated into the ADJ pin (high-active, 2.5–36 V valid range).

Protection circuitry includes foldback current limiting triggered by output short-circuit, thermal shutdown at T_j ≥ 150 °C, and reverse-battery tolerance up to –42 V. The device requires a minimum 1 µF output capacitor with ESR between 2–7 Ω for stability-verified via region-of-stability plots in the datasheet.

Key Specifications

Parameter	Value and Actual Design Meaning
Output tracking accuracy	±25 mV (max deviation from ADJ voltage); ensures sensor bias stays within 0.5% of reference under full load and input range
Max output current	50 mA (continuous); sufficient for powering Hall sensors, pressure transducers, or analog front-ends
Drop voltage	100–300 mV at 10 mA; enables stable regulation even with low headroom (e.g., 5.5 V input → 5 V output)
Quiescent current (standby)	10–20 µA at V_ADJ = 0 V; supports always-on battery monitoring without excessive drain
Input voltage range	4–40 V; covers cold-crank (4.5 V), normal operation (13.5 V), and load-dump (40 V) conditions in 12 V automotive systems
Operating temperature	–40 °C to +150 °C (junction); qualified for under-hood placement per AEC-Q100 Class 0
Output capacitor requirement	1 µF, 2–7 Ω ESR; mandatory for loop stability-deviation risks oscillation or poor transient response

Pinout & Package

Package: SCT-595 (5-pin SMD, 2.9 mm × 2.8 mm × 1.1 mm, exposed thermal pad). Pin 2 and Pin 5 are internally connected GND terminals for enhanced thermal and electrical grounding.

Pin/Terminal	Circuit Role	Design Meaning
1 - ADJ	Adjust/Enable input	High-active enable: >2.5 V enables regulation; 0 V forces standby (10–20 µA I_q); also sets output voltage target
2 - GND	Ground (primary)	Internal connection to pin 5; provides main return path and thermal conduction to PCB copper
3 - I	Input voltage supply	Accepts 4–40 V unregulated rail; must be decoupled locally (e.g., 100 nF ceramic)
4 - Q	Regulated output	Delivers tracked voltage; requires 1 µF output cap (2–7 Ω ESR) placed <2 mm from pin
5 - GND	Ground (secondary)	Internally tied to pin 2; improves noise immunity and thermal dissipation when both pins are soldered to ground plane

Key Features

Feature	Design Value
Integrated reverse-polarity protection	Withstands –42 V input without damage or latch-up-eliminates need for external series diode
Short-circuit foldback current limiting	Reduces output current to <10 mA during sustained short, preventing thermal runaway and enabling auto-recovery
Thermal shutdown with hysteresis	Shuts down at T_j ≥ 150 °C and restarts only after cooling to ~135 °C-prevents cycling in overheated enclosures
Single-pin enable/tracking interface	ADJ pin serves dual role: sets output voltage and enables/disables regulator-reduces MCU GPIO count and BOM cost
Automotive-grade qualification	AEC-Q100 stress-tested; validated for 150 °C junction operation and 40 V load-dump survival per ISO 7637-2

Applications

Engine Coolant Temperature Sensor Supply

ABS Wheel Speed Sensor Bias

Use Scenario: Stable 5 V bias for NTC thermistor-based coolant sensor in engine bay, exposed to 150 °C ambient and 40 V load-dump transients.

IC Role / Device Role / Timing Role: Low-drop voltage tracker maintaining exact 5 V output referenced to MCU's internal 5 V rail, rejecting input ripple and transients.

Use Value: Eliminates need for discrete op-amp + MOSFET tracker design; ±25 mV tracking ensures <0.5% temperature reading error across full operating range.

Use Scenario: Powering active wheel speed sensors (e.g., GMR or Hall effect) in ABS control units, requiring low-noise, always-on supply with minimal quiescent draw.

IC Role / Device Role / Timing Role: Precision voltage tracker with standby mode-enabled during vehicle operation, disabled during ignition-off to preserve battery.

Use Value: 10–20 µA standby current extends battery life in parked vehicles; 50 mA output supports multiple sensor channels per IC.

Transmission Oil Pressure Sensor Interface

Body Control Module (BCM) Analog Input Conditioning

Use Scenario: Regulating 3.3 V or 5 V supply for piezoresistive oil pressure sensors inside transmission housing, subject to vibration and wide temperature swings.

IC Role / Device Role / Timing Role: Tracking regulator referenced to stable MCU VREF, compensating for main rail fluctuations during gear shifts or solenoid actuation.

Use Value: ±25 mV tracking accuracy ensures pressure measurement resolution remains unaffected by battery voltage sag or alternator ripple.

Use Scenario: Providing clean, tracked supply to analog multiplexers and signal conditioners in BCMs managing door locks, lighting, and HVAC feedback.

IC Role / Device Role / Timing Role: Local voltage tracker isolating sensitive analog circuitry from noisy 12 V bus, with integrated short-circuit protection for fault-tolerant design.

Use Value: On-chip short-circuit and overtemperature protection avoids single-point failure; SCT-595 footprint minimizes PCB area in space-constrained modules.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-drop voltage tracker applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV71718PDBVR	Fixed 1.8 V LDO (not adjustable); 150 mA output; no reverse-polarity or short-circuit foldback	Lacks tracking capability and automotive protection-requires external enable and reverse-protection diode	Only suitable for non-automotive, fixed-voltage, low-risk environments where board space allows added discretes
MAX1725EUT+T	Adjustable LDO (0.9–5.5 V); 250 mA; no reverse-polarity rating; R_thJA = 200 K/W (SOT23-5)	Higher thermal resistance limits continuous 50 mA output in high-temp enclosures; no load-dump or reverse-battery hardening	Acceptable for cabin electronics with controlled environment-but not for under-hood use without derating and external protection

Compared with TLV71718PDBVR and MAX1725EUT+T, the TLE4250GNTSA1 uniquely combines tracking functionality, automotive-grade protection (reverse polarity, load dump, short-circuit foldback), and thermal performance in a compact SCT-595 package-making it irreplaceable for safety-critical sensor supply in harsh environments.

Availability

TLE4250GNTSA1 is available at Aetrix Electronics and suitable for engine management systems, ABS control units, transmission control modules, and body control modules requiring stable component supply with AEC-Q100 compliance and long-term automotive lifecycle support.

Supply support for TLE4250GNTSA1 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 industrial control solutions, with global manufacturing and qualification infrastructure.

The TLE4250GNTSA1 belongs to Infineon's TLE automotive linear regulator family, engineered specifically for reliable sensor biasing in high-temperature, high-transient automotive environments-emphasizing robustness over raw efficiency.

FAQ

What is the minimum input voltage required for regulation?

The TLE4250GNTSA1 requires a minimum input voltage of 4 V to initiate regulation. Below this threshold, the output follows the input minus dropout voltage (typically <300 mV), but tracking accuracy degrades. Stable 50 mA output with ±25 mV accuracy is guaranteed only above 4 V and within the specified junction temperature range.

Can the ADJ pin be driven directly from a microcontroller GPIO?

Yes-the ADJ pin accepts 2.5–36 V logic-high for enable and tolerates 0 V for standby. A standard 5 V-tolerant MCU GPIO (e.g., STM32, NXP S32K) can drive it directly without level-shifting. Input bias current is only 0.1–0.5 µA, minimizing loading on the MCU port.

Why is ESR specification critical for the output capacitor?

The TLE4250GNTSA1's internal compensation relies on the ESR of the 1 µF output capacitor to stabilize the control loop. An ESR below 2 Ω causes phase margin loss and potential oscillation; above 7 Ω reduces transient response and increases output overshoot. Datasheet Figure 8 explicitly defines the stable ESR–load current region.

Does the device support parallel operation for higher current?

No-parallel operation is not supported or characterized. The TLE4250GNTSA1 lacks current-sharing features (e.g., current-sense outputs or master-slave sync), and mismatched dropout voltages between units would cause uneven load distribution and possible thermal imbalance. For >50 mA, select a higher-current automotive tracker or use discrete solutions.

TLE4250GNTSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 6-SMD (5 Leads), Gull Wing

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

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):: 0.3V @ 10mA

Current - Output:: 50mA

Current - Quiescent (Iq):: 20 µA

Current - Supply (Max):: 3 mA

PSRR:: 60dB (100Hz)

Control Features:: Enable

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

Operating Temperature:: -40°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-SCT595-5-1

TLE4250GNTSA1 FAQ

1.How can I place an order for TLE4250GNTSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE4250GNTSA1 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 TLE4250GNTSA1 reliable?

The price and inventory of TLE4250GNTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4250GNTSA1 is usually 5 days.

3.What payment methods are accepted for TLE4250GNTSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4250GNTSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE4250GNTSA1?

TLE4250GNTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE4250GNTSA1 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 TLE4250GNTSA1?

For technical support, including TLE4250GNTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4250GNTSA1 requirements.

6.How does Aetrix verify that TLE4250GNTSA1 is sourced from the original manufacturer or authorized distributors?

All TLE4250GNTSA1 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 TLE4250GNTSA1 meets industry standards.

7.What is the process for return or replacement of TLE4250GNTSA1?

All TLE4250GNTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4250GNTSA1, 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 TLE4250GNTSA1 part is unused and in its original packaging.

Return procedure for TLE4250GNTSA1:

1.Submit a request within 90 days.

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

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