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

Infineon Technologies TLE42662GHTMA2

Name: TLE42662GHTMA2
Brand: Infineon Technologies
SKU: TLE42662GHTMA2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLE42662GHTMA2

Manufacturer:: Infineon Technologies

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

Package:: TO-261-4, TO-261AA

Datasheet:: TLE42662GHTMA2.pdf

Description:: IC REG LINEAR 5V 150MA SOT223-4

Quantity:: RFQ Add To RFQ list

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Inventory:17,038

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Product details

Overview

TLE42662GHTMA2 from Infineon Technologies is a monolithic low-drop fixed-voltage linear regulator delivering 5.0 V ±2% (up to 50 mA) or ±3% (up to 150 mA), with 150 mA output current capability, ≤1 µA quiescent current in OFF mode, and inhibit-controlled ON/OFF functionality. It operates across -40°C to +150°C junction temperature and supports input voltages up to 45 V - designed specifically for automotive microprocessor power supply under harsh conditions.

For engineers reviewing the TLE42662GHTMA2 datasheet, TLE42662GHTMA2 pinout, TLE42662GHTMA2 application, or TLE42662GHTMA2 equivalent, key selection criteria include its AEC-Q100 qualification, ultra-low quiescent current in both ON (40 µA typ.) and OFF (1 µA max.) states, thermal shutdown, reverse-polarity protection, and SOT223-4 pin compatibility with legacy TLE4266G.

Technical Context

The TLE42662GHTMA2 implements a bandgap-referenced control loop comparing a resistive divider of the output voltage against a 2.5 V internal reference to maintain regulation. Its SOA protection reduces maximum output current above 25 V input to prevent thermal runaway.

It features an integrated pull-down resistor on the INH pin (1.0 MΩ), requiring ≥3.5 V to enable regulation and ≤0.8 V to disable it. The device uses a PMOS pass transistor architecture enabling low-drop operation (0.25–0.5 V at 100 mA) and inherent reverse-polarity robustness without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	5.0 V ±2% (≤50 mA load); ±3% (≤150 mA) - ensures stable MCU core logic supply within automotive ASIL-B compatible systems
Max Output Current	150 mA - sufficient for powering small microcontrollers, CAN transceivers, or sensor signal chains
Quiescent Current	1 µA (OFF), 40 µA (ON, 100 µA load) - enables always-on subsystems with <1 µA standby drain
Drop Voltage	0.25 V (typ.) at 100 mA - allows regulation from 5.25 V input, critical for cold-crank 6 V battery scenarios
Input Voltage Range	5.5 V to 45 V - covers full automotive battery range including load dump transients
Junction Temp Range	−40°C to +150°C - qualified per AEC-Q100 Grade 0 for under-hood placement
Protection Features	Overtemperature shutdown, short-circuit current limiting, reverse-polarity proof - eliminates need for external protection circuitry

Pinout & Package

Supplied in PG-SOT223-4 package: thermally enhanced surface-mount outline with exposed thermal pad (pin 4 = GND), footprint compatible with JEDEC TO-263-4 but smaller and optimized for PCB heat dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1 (I)	Input voltage supply	Accepts 5.5–45 V; requires local 100 nF ceramic decoupling directly at pin
2 (INH)	Inhibit control input	CMOS-compatible enable pin; internal 1.0 MΩ pull-down; ≥3.5 V = ON, ≤0.8 V = OFF
3 (Q)	Regulated output	5.0 V source; requires ≥10 µF output capacitor with ESR ≤4 Ω for loop stability
4 (GND)	Power ground / thermal pad	Primary return path and main thermal conduction path to PCB copper pour

Key Features

Feature	Design Value
AEC-Q100 Grade 0 qualification	Validated for −40°C to +150°C operation - enables direct integration into engine control units and transmission modules
Inhibit function with integrated pull-down	Eliminates need for external pull-down resistor - reduces BOM count and PCB area in space-constrained modules
Ultra-low OFF-mode current (≤1 µA)	Meets ISO 16750-2 "sleep mode" leakage requirements for body electronics and gateway ECUs
Reverse-polarity proof design	Withstands −42 V input without damage - removes need for series diode or TVS in battery-connected rails
Thermal shutdown with hysteresis	Auto-recovery after cooldown - prevents latch-up during transient overload or poor heatsinking

Applications

Engine Control Unit (ECU) Power

CAN Transceiver Bias Supply

Use Scenario: Powers 32-bit MCU core and peripheral logic in gasoline/diesel engine management systems exposed to under-hood temperatures up to 150°C.

IC Role / Device Role / Timing Role: Primary 5 V LDO supplying MCU I/O banks and ADC reference, enabled only during ignition via vehicle wake-up signal on INH.

Use Value: Maintains ±2% output accuracy across cold-crank (6 V) to load-dump (45 V) events while drawing <1 µA when engine is off - extends battery life in parked state.

Use Scenario: Supplies isolated 5 V rail to high-speed CAN FD transceivers in automotive domain controllers.

IC Role / Device Role / Timing Role: Local post-regulator stabilizing noisy 12 V vehicle bus for noise-sensitive differential signaling.

Use Value: PSRR of 68 dB at 100 Hz suppresses alternator ripple; low-drop operation ensures CAN bias remains active even during 7 V brownout conditions.

Body Control Module (BCM) Sensor Hub

Automotive Camera Module Power

Use Scenario: Powers multi-sensor cluster (door lock, window lift, ambient light) in centralized BCM with extended sleep mode requirements.

IC Role / Device Role / Timing Role: Always-on 5 V regulator feeding real-time clock and wake-up interrupt logic, controlled by LIN bus command via INH pin.

Use Value: 1 µA OFF-state current meets OEM 20 µA total module sleep budget; reverse-polarity tolerance avoids fuse replacement after battery jump-start errors.

Use Scenario: Provides clean 5 V supply to image sensor and ISP in rear-view or surround-view camera modules mounted near exhaust or wheel wells.

IC Role / Device Role / Timing Role: Secondary LDO downstream of buck converter, filtering switching noise before analog sensor front-end.

Use Value: 10 µF/ESR ≤4 Ω output cap requirement ensures <10 mV peak-to-peak ripple - prevents image banding artifacts in rolling-shutter sensors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-quiescent-current automotive LDO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV73350PDBVR	Lower IQ (250 nA OFF), but only AEC-Q200 rated (not Q100), 300 mA max, no reverse-polarity protection	Suitable for cabin electronics (infotainment, HVAC) where full under-hood qualification not required	Select if ultra-low sleep current dominates over ruggedness; verify thermal derating above 85°C
MAX1725EUT+T	Higher IQ (3 µA OFF), no inhibit pin, only industrial temp range (−40°C to +85°C), no AEC-Q100	Limited to non-safety-critical body electronics with benign thermal environment	Choose only for cost-sensitive non-automotive industrial designs; avoid in powertrain or ADAS

Compared with TLV73350PDBVR and MAX1725EUT+T, the TLE42662GHTMA2 uniquely combines AEC-Q100 Grade 0 qualification, reverse-polarity immunity, and sub-µA OFF current - making it the only drop-in solution for safety-critical, always-on automotive subsystems requiring zero external protection.

Availability

TLE42662GHTMA2 is available at Aetrix Electronics and suitable for engine control units, body control modules, and automotive camera systems requiring stable component supply with guaranteed long-term automotive lifecycle support.

Supply support for TLE42662GHTMA2 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 regulator product line targets automotive power supply applications demanding high reliability, extended temperature operation, and integrated protection - specifically engineered for ECU, ADAS, and electrification subsystems.

FAQ

What is the minimum input voltage required for regulation at full 150 mA load?

The minimum input voltage is 5.25 V - calculated as V_Q + V_Dr = 5.0 V + 0.25 V (typical drop voltage at 100 mA). At 150 mA, drop voltage increases slightly; datasheet specifies 0.5 V max, so 5.5 V ensures regulation across temperature and process variation. Below this, output collapses.

Can the INH pin be left floating, or does it require external biasing?

No external biasing is needed: the INH pin has an integrated 1.0 MΩ pull-down resistor to GND. Floating INH results in automatic disable (OFF state). To enable, apply ≥3.5 V - typically from a microcontroller GPIO or dedicated wake-up signal. This eliminates external components and simplifies layout.

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

Yes - a 100 nF ceramic capacitor is mandatory and must be placed directly between pin 1 (I) and pin 4 (GND). It suppresses high-frequency noise and prevents oscillation due to PCB trace inductance. For long supply lines (>1 m), add a 470 µF electrolytic capacitor upstream to buffer load-dump transients and reduce ripple.

Does the TLE42662GHTMA2 support adjustable output voltage via external resistors?

No - it is a fixed-output device with internally trimmed 5.0 V regulation. The feedback network is fully integrated; there are no external FB pins or adjustment terminals. For adjustable output, consider Infineon's TLE4276 series, which offers programmable V_OUT via external resistor divider.

TLE42662GHTMA2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OPTIREG™

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 45V

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

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.5V @ 100mA

Current - Output:: 150mA

Current - Quiescent (Iq):: 60 µA

Current - Supply (Max):: 4 mA

PSRR:: 68dB (100Hz)

Control Features:: Inhibit

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-SOT223-4

TLE42662GHTMA2 FAQ

1.How can I place an order for TLE42662GHTMA2 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLE42662GHTMA2 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 TLE42662GHTMA2 reliable?

The price and inventory of TLE42662GHTMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42662GHTMA2 is usually 5 days.

3.What payment methods are accepted for TLE42662GHTMA2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42662GHTMA2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLE42662GHTMA2?

TLE42662GHTMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLE42662GHTMA2 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 TLE42662GHTMA2?

For technical support, including TLE42662GHTMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42662GHTMA2 requirements.

6.How does Aetrix verify that TLE42662GHTMA2 is sourced from the original manufacturer or authorized distributors?

All TLE42662GHTMA2 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 TLE42662GHTMA2 meets industry standards.

7.What is the process for return or replacement of TLE42662GHTMA2?

All TLE42662GHTMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42662GHTMA2, 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 TLE42662GHTMA2 part is unused and in its original packaging.

Return procedure for TLE42662GHTMA2:

1.Submit a request within 90 days.

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

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