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

Infineon Technologies IFX21004TNV51AKSA1

Name: IFX21004TNV51AKSA1
Brand: Infineon Technologies
SKU: IFX21004TNV51AKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IFX21004TNV51AKSA1

Manufacturer:: Infineon Technologies

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

Package:: TO-220-5

Datasheet:: IFX21004TNV51AKSA1.pdf

Description:: IC REG LINEAR 5V/15V TO220-5

Quantity:: RFQ Add To RFQ list

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Inventory:4,298

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Product details

Overview

IFX21004TNV51AKSA1 from Infineon Technologies is a dual-output monolithic voltage regulator delivering regulated 5 V (100 mA) and 15 V (30 mA) outputs from a single input, operating across 20–40 V continuous or up to 60 V peak input. It features overtemperature shutdown, output current limiting on both channels, and ±2.5% output voltage accuracy at full load. Designed for automotive and industrial power supply systems requiring isolated logic and gate-drive rails-e.g., MCU + MOSFET driver co-supply.

For engineers reviewing the IFX21004TNV51AKSA1 datasheet, IFX21004TNV51AKSA1 pinout, IFX21004TNV51AKSA1 application, or IFX21004TNV51AKSA1 equivalent, this device supports high-temperature operation (−40 °C to +150 °C junction), low quiescent current (700–1000 μA at light load), and thermal-optimized PG-TO220-5 packaging with integrated heatsink tab connection.

Technical Context

The IFX21004TNV51AKSA1 integrates two independent linear regulator stages-Q1 (5 V/100 mA) and Q2 (15 V/30 mA)-with separate dropout characteristics (VDRQ1 ≤ 10 V, VDRQ2 ≤ 6 V at full load) and shared input protection. Its bandgap reference and bias circuitry enable stable regulation across wide temperature and line/load variations.

Thermal management relies on the PG-TO220-5 package's low R_thJC (4.1 K/W typ. with zener active), while internal protection includes per-channel current limiting and a common overtemperature shutdown (TSD) that disables both outputs simultaneously above T_j = 150 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltages	5.00 V ±2.5% (Q1); 15.0 V ±2.5% (Q2) - tight regulation enables direct powering of sensitive logic and gate drivers without external trimming
Max Output Current	100 mA (Q1), 30 mA (Q2) - sufficient for microcontrollers and low-power MOSFET drivers in engine control units
Input Voltage Range	20–40 V continuous; up to 60 V peak for ≤400 ms - compatible with 24 V automotive battery systems under load dump
Quiescent Current	700–1000 μA at light load - minimizes standby power loss in always-on vehicle modules
Junction Temp Range	−40 °C to +150 °C - validated for under-hood automotive placement without derating
Thermal Resistance	R_thJC = 4.1 K/W (typ.) - enables >2 W dissipation with standard heatsinking via tab-connected GND
Protection Features	Per-output current limiting + shared overtemperature shutdown - prevents latch-up during short-circuit or overheating events

Pinout & Package

Package: PG-TO220-5 with insulated tab connected internally to Pin 3 (GND); designed for mechanical mounting to heatsink and low thermal resistance.

Pin/Terminal	Circuit Role	Design Meaning
1 (I)	Input voltage supply	Primary DC input node; requires local ceramic decoupling to GND for stability and transient response
2 (n.c.)	No-connect terminal	Internally unconnected; must remain floating-no PCB trace or component attachment
3 (GND)	Ground reference and thermal path	Common return for both regulators; tab connects directly to this pin and serves as primary heatsink interface
4 (Q1)	5 V regulated output	Supplies 5 V logic loads (e.g., MCUs); requires ≥1.0 μF output capacitor with ESR ≤5 Ω
5 (Q2)	15 V regulated output	Supplies 15 V gate drivers; requires ≥1.0 μF output capacitor with ESR ≤5 Ω

Key Features

Feature	Design Value
Dual independent LDO outputs	5 V/100 mA and 15 V/30 mA on one die-eliminates need for two discrete regulators and reduces BOM count
Wide input voltage range	20–40 V continuous operation supports 24 V industrial and automotive systems with load-dump tolerance up to 60 V
High-temperature operation	Rated for −40 °C to +150 °C junction temperature-enables placement in high-ambient zones like engine compartments
Integrated thermal protection	Single overtemperature shutdown disables both outputs simultaneously-prevents thermal runaway without external monitoring
Low quiescent current	700–1000 μA at light load-critical for battery-backed or always-on automotive modules with strict leakage budgets

Applications

Engine Control Unit (ECU) Power Supply

Industrial PLC I/O Module

Use Scenario: Supplies 5 V to microcontroller and CAN transceiver, and 15 V to high-side gate drivers controlling fuel injectors and ignition coils.

IC Role / Device Role / Timing Role: Primary dual-rail linear regulator providing isolated, stable bias for safety-critical digital and power stages.

Use Value: Eliminates cross-talk between logic and power domains while maintaining regulation under 24 V battery transients up to 60 V.

Use Scenario: Powers 5 V FPGA configuration logic and 15 V analog front-end op-amps in modular I/O cards operating in factory environments.

IC Role / Device Role / Timing Role: Dual-output voltage source enabling compact, thermally robust local regulation without external DC-DC converters.

Use Value: Reduces board area and thermal design complexity by integrating two precision rails into a single TO220 footprint with heatsink tab.

Automotive Body Control Module (BCM)

Off-Highway Vehicle Telematics

Use Scenario: Delivers 5 V to body controller MCU and 15 V to window lift motor drivers and mirror fold/unfold H-bridges.

IC Role / Device Role / Timing Role: Centralized dual-voltage regulator supporting mixed-signal subsystems with varying current demands and thermal profiles.

Use Value: Maintains output accuracy within ±2.5% across −40 °C to +125 °C ambient, meeting AEC-Q100 Grade 1 requirements.

Use Scenario: Provides 5 V for GPS/GNSS module and 15 V for cellular modem RF power amplifier bias in ruggedized telematics gateways.

IC Role / Device Role / Timing Role: High-reliability linear regulator for mission-critical comms hardware exposed to vibration, dust, and wide temperature swings.

Use Value: Withstands 60 V load dump pulses and operates continuously at 150 °C junction-ensuring uptime in harsh off-road conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-output linear regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV7675015	5 V/1 A + 15 V/150 mA; lower max input (36 V); no overtemperature shutdown	Higher Q1 current but limited to 36 V input-unsuitable for 60 V load dump scenarios	Select only if system input stays ≤36 V and higher Q1 current is required
TLE42744G	5 V/400 mA only; no 15 V rail; includes watchdog and reset functions	Single-output with added supervisory features-requires external 15 V generation	Choose when system needs reset supervision and can accommodate discrete 15 V solution

Compared with TLV7675015 and TLE42744G, the IFX21004TNV51AKSA1 uniquely combines 60 V peak input tolerance, dual-rail integration, and automotive-grade thermal protection-making it optimal for space-constrained, high-transient environments where both rails must be co-regulated.

Availability

IFX21004TNV51AKSA1 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC I/O modules, and off-highway telematics systems requiring stable component supply under extended temperature and high-voltage stress conditions.

Supply support for IFX21004TNV51AKSA1 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 aligned to AEC-Q100 and ISO/TS 16949 standards.

The IFX21004TNV51AKSA1 belongs to Infineon's IFX2100x family of dual-output linear regulators engineered specifically for automotive power distribution-delivering matched 5 V and 15 V rails with robust fault protection and thermal resilience.

FAQ

What is the maximum allowable input voltage for continuous operation?

The IFX21004TNV51AKSA1 supports continuous input voltages from 20 V to 40 V. Operation above 40 V is permitted only for transient conditions up to 60 V peak, limited to 400 ms duration per event, as specified in the Absolute Maximum Ratings table. Exceeding these limits risks permanent damage.

Can Pin 2 (n.c.) be grounded or left floating?

Pin 2 is explicitly marked "not connected" in the datasheet and must remain electrically floating-no PCB trace, solder joint, or component connection is allowed. Grounding or tying it to any potential violates the internal isolation design and may cause unpredictable behavior or failure.

Is the heatsink tab electrically isolated from the package pins?

No-the metal tab is internally connected to Pin 3 (GND) and must be mounted to a heatsink that is also referenced to system ground. This ensures both thermal conduction and electrical continuity; using an insulated mounting pad would compromise thermal performance and violate the R_thJC specification.

Does the device support simultaneous full-load operation on both outputs?

Yes-both outputs can deliver rated current simultaneously: Q1 at 100 mA and Q2 at 30 mA, provided input voltage remains ≥24 V and junction temperature stays ≤150 °C. Total power dissipation under these conditions is ~2 W, requiring appropriate heatsinking per the R_thJC = 4.1 K/W spec.

IFX21004TNV51AKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-220-5

Packaging:: Tube

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 2

Voltage - Input (Max):: 40V

Voltage - Output (Min/Fixed):: 5V, 15V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 10V @ 100mA, 6V @ 30mA

Current - Output:: 100mA, 30mA

Current - Quiescent (Iq):: 1 mA

Current - Supply (Max):: 3.5 mA

PSRR:: 55dB (100Hz), 50dB (100Hz)

Control Features:: -

Protection Features:: Over Current, Over Temperature

Operating Temperature:: -40°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO220-5

IFX21004TNV51AKSA1 FAQ

1.How can I place an order for IFX21004TNV51AKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IFX21004TNV51AKSA1 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 IFX21004TNV51AKSA1 reliable?

The price and inventory of IFX21004TNV51AKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX21004TNV51AKSA1 is usually 5 days.

3.What payment methods are accepted for IFX21004TNV51AKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX21004TNV51AKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IFX21004TNV51AKSA1?

IFX21004TNV51AKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IFX21004TNV51AKSA1 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 IFX21004TNV51AKSA1?

For technical support, including IFX21004TNV51AKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX21004TNV51AKSA1 requirements.

6.How does Aetrix verify that IFX21004TNV51AKSA1 is sourced from the original manufacturer or authorized distributors?

All IFX21004TNV51AKSA1 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 IFX21004TNV51AKSA1 meets industry standards.

7.What is the process for return or replacement of IFX21004TNV51AKSA1?

All IFX21004TNV51AKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX21004TNV51AKSA1, 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 IFX21004TNV51AKSA1 part is unused and in its original packaging.

Return procedure for IFX21004TNV51AKSA1:

1.Submit a request within 90 days.

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

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