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Infineon Technologies IFX1963TEVATMA1
- Part No.:
- IFX1963TEVATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
IFX1963TEVATMA1.pdf
- Description:
- IC REG LIN POS ADJ 1.5A TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,596
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Product details
Overview
IFX1963TEVATMA1 from Infineon Technologies is a 1.5 A adjustable low dropout linear voltage regulator in PG-TO252-5 package, delivering output voltages from 1.21 V to (VIN − 0.34 V) with ±1.5% tolerance at light loads, 340 mV dropout at full load, and 40 µVRMS output noise (10 Hz–100 kHz). It supports industrial power rails requiring stable, low-noise bias for microcontrollers and analog circuitry.
For engineers reviewing the IFX1963TEVATMA1 datasheet, IFX1963TEVATMA1 pinout, IFX1963TEVATMA1 application, or IFX1963TEVATMA1 equivalent, key selection criteria include adjustable output configuration, ceramic-capacitor compatibility, enable control, thermal shutdown, and reverse polarity protection - all verified per Rev. 1.0 (2013-02-25) datasheet.
Technical Context
The IFX1963TEVATMA1 implements a precision bandgap reference (1.21 V) and error amplifier driving a PNP pass transistor, enabling adjustable regulation via external resistor divider on the ADJ pin. Its saturation control and integrated current-limiting circuit provide overload recovery without latch-up.
Designed for fixed or programmable supply generation, it operates across 2.5 V to 20 V input range and maintains stability with ≥10 µF ceramic output capacitors. Protection includes overtemperature shutdown (Tj > 150 °C), reverse polarity protection, and output short-circuit current limiting - all active within the -40 °C to +125 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5 A max - supports logic cores, sensors, and analog front-ends without external boost stages. |
| Dropout Voltage | 340 mV at 1.5 A - enables regulation from 3.3 V input down to 2.96 V output, critical for battery-backed systems. |
| Output Noise | 40 µVRMS (10 Hz–100 kHz) - suitable for noise-sensitive ADC references and RF bias rails. |
| Reference Voltage | 1.21 V ±1.5% - sets minimum output and defines accuracy of externally adjusted outputs. |
| Input Voltage Range | 2.5 V to 20 V - accommodates wide-input industrial supplies including 5 V, 12 V, and 24 V bus derivatives. |
| Operating Temp | -40 °C to +125 °C - qualified for extended industrial ambient and PCB self-heating conditions. |
Pinout & Package
IFX1963TEVATMA1 uses the PG-TO252-5 surface-mount package (lead-free, RoHS-compliant), with exposed thermal pad connected internally to GND for enhanced heat dissipation. Pin 1 (EN) controls IC activation; Pin 2 (IN) accepts input supply; Pin 3 (GND) serves as power and signal reference; Pin 4 (OUT) delivers regulated output; Pin 5 (ADJ) sets output voltage via external resistor divider.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable control input | Active-high logic: tie to IN for always-on operation; pull low to disable output and reduce quiescent current to <1 µA. |
| 2 (IN) | Main power input | Accepts 2.5–20 V; requires local 1 µF ceramic bypass capacitor to suppress high-frequency line transients. |
| 3 (GND) | Power and signal ground | Common return path for IN, OUT, ADJ, and EN; must be low-impedance and thermally coupled to PCB copper pour. |
| 4 (OUT) | Regulated output | Delivers adjustable voltage (≥1.21 V); requires ≥10 µF ceramic capacitor with ESR ≤ 100 mΩ for loop stability. |
| 5 (ADJ) | Feedback reference node | Connects to resistor divider between OUT and GND; sets VOUT = 1.21 V × (1 + R1/R2); open-circuit disables regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Output | 1.21 V to (VIN − 0.34 V) - eliminates need for multiple fixed-output regulators in multi-rail systems. |
| Ceramic Capacitor Support | Stable with ≥10 µF X5R/X7R ceramics - reduces BOM count and board space vs. tantalum or electrolytic alternatives. |
| Reverse Polarity Protection | Withstands −20 V on IN - prevents damage during board-level assembly errors or field-reverse connection. |
| Thermal Shutdown | Triggers at Tj > 150 °C with automatic recovery - protects against sustained overload or inadequate heatsinking. |
| Enable Function | Logic-compatible EN pin with <1 µA shutdown current - enables power sequencing and system-level sleep mode control. |
Applications
| Industrial PLC I/O Modules | Factory Automation Sensors |
|---|---|
Use Scenario: Powering isolated analog input channels and digital I/O drivers in modular PLC backplanes. IC Role / Device Role / Timing Role: Primary 3.3 V or 5 V LDO supplying ADC reference, op-amp bias, and level-shifter logic under varying load transients. Use Value: Low 40 µVRMS noise ensures <12-bit ADC accuracy; 1.5 A capacity supports multiple channel drivers simultaneously. | Use Scenario: Regulating sensor excitation voltage (e.g., 2.5 V for RTD bridges or 3.3 V for MEMS accelerometers) in harsh factory environments. IC Role / Device Role / Timing Role: Precision adjustable LDO providing stable bias independent of 12–24 V field bus fluctuations. Use Value: ±1.5% output tolerance at light loads guarantees sensor measurement repeatability; reverse polarity protection avoids field-installation failures. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
Use Scenario: Generating clean, low-noise supply rails for analog front-ends in portable ECG or EEG signal conditioners. IC Role / Device Role / Timing Role: Secondary LDO deriving 1.8 V or 2.5 V from main 5 V rail to power instrumentation amplifiers and anti-aliasing filters. Use Value: 340 mV dropout allows operation from partially discharged Li-ion batteries; 40 µVRMS noise preserves signal-to-noise ratio in µV-level bio-potential acquisition. | Use Scenario: Supplying reference voltage and clock buffer ICs in benchtop multimeters and spectrum analyzers. IC Role / Device Role / Timing Role: Low-drift, low-noise LDO delivering stable 2.5 V or 3.3 V to precision DACs and crystal oscillator buffers. Use Value: 1.21 V reference accuracy and ±1.5% output tolerance ensure calibration-grade voltage stability; thermal shutdown prevents drift during extended warm-up periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE42744G | Fixed 5 V output; no ADJ pin; 400 mV dropout at 1.5 A; integrated watchdog timer. | Not adjustable - limited to single-rail 5 V systems; watchdog adds complexity for simple biasing. | Select when fixed 5 V output and system supervision are required; avoid if voltage flexibility or low-noise bias is needed. |
| TLV1117LV33 | Fixed 3.3 V output; 200 mV dropout at 800 mA; 30 µVRMS noise; SOT-223 package. | Lower current rating and fixed output restrict use to lower-power, single-voltage designs. | Choose for cost-sensitive, low-current 3.3 V rails where adjustability and 1.5 A delivery are unnecessary. |
Compared with TLE42744G and TLV1117LV33, IFX1963TEVATMA1 uniquely combines 1.5 A adjustable output, 340 mV dropout, and 40 µVRMS noise in a thermally robust TO252-5 package - making it optimal for multi-rail industrial systems demanding both flexibility and precision.
Availability
IFX1963TEVATMA1 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation sensors, medical diagnostic equipment, and test & measurement instrumentation requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for IFX1963TEVATMA1 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 quality certification to ISO/TS 16949 and ISO 14001.
The IFX1963 product line targets industrial power regulation applications requiring high-current, low-noise, and adjustable LDO performance - designed specifically for non-automotive environments where reliability, thermal robustness, and design flexibility are prioritized.
FAQ
What is the minimum input voltage required for regulation at 1.21 V output?
The IFX1963TEVATMA1 requires VIN ≥ 1.55 V to maintain regulation at 1.21 V output, based on its 340 mV dropout specification. However, functional operation begins only at VIN > 2.5 V per absolute ratings - below this, internal bias circuits may not activate reliably, and output voltage cannot be guaranteed.
Can the ADJ pin be left unconnected or tied directly to GND?
No. Leaving ADJ floating causes undefined output voltage and potential instability. Tying ADJ directly to GND forces the error amplifier into saturation, resulting in unregulated high current flow and possible device damage. ADJ must be connected either to the voltage divider network or directly to OUT for 1.21 V fixed output.
Is the thermal pad (TAB) electrically isolated or connected internally?
The exposed thermal pad (TAB) in the PG-TO252-5 package is internally connected to GND. It must be soldered to a dedicated GND copper pour on the PCB for both thermal performance and electrical integrity - floating or insulated mounting degrades thermal resistance by >20 °C/W and risks malfunction.
Does IFX1963TEVATMA1 support parallel operation for higher current?
No. The IFX1963TEVATMA1 lacks current-sharing features such as precision current-sense outputs or master-slave synchronization pins. Attempting parallel operation risks thermal runaway due to mismatched dropout voltages and load distribution - external current-balancing circuitry is not supported or characterized in the datasheet.
IFX1963TEVATMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 1.21V
- Voltage - Output (Max):
- 19.45V
- Voltage Dropout (Max):
- 0.55V @ 1.5A
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- 1.5 mA
- Current - Supply (Max):
- 130 mA
- PSRR:
- 67dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO252-5-13
IFX1963TEVATMA1 FAQ
1.How can I place an order for IFX1963TEVATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX1963TEVATMA1 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 IFX1963TEVATMA1 reliable?
The price and inventory of IFX1963TEVATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX1963TEVATMA1 is usually 5 days.
3.What payment methods are accepted for IFX1963TEVATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX1963TEVATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX1963TEVATMA1?
IFX1963TEVATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX1963TEVATMA1 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 IFX1963TEVATMA1?
For technical support, including IFX1963TEVATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX1963TEVATMA1 requirements.
6.How does Aetrix verify that IFX1963TEVATMA1 is sourced from the original manufacturer or authorized distributors?
All IFX1963TEVATMA1 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 IFX1963TEVATMA1 meets industry standards.
7.What is the process for return or replacement of IFX1963TEVATMA1?
All IFX1963TEVATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX1963TEVATMA1, 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 IFX1963TEVATMA1 part is unused and in its original packaging.
Return procedure for IFX1963TEVATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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