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Infineon Technologies IFX1963TBVATMA1
- Part No.:
- IFX1963TBVATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
IFX1963TBVATMA1.pdf
- Description:
- IC REG LINEAR POS ADJ 1.5A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:1,229
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Product details
Overview
IFX1963TBVATMA1 from Infineon Technologies is a 1.5 A adjustable low-dropout linear voltage regulator in PG-TO263-5 package, delivering output voltages from 1.21 V to (VIN − 0.34 V) with ±1.5% tolerance at light loads, 40 µVRMS output noise (10 Hz–100 kHz), and guaranteed stability with 10 µF ceramic output capacitor. It serves as a precision local power supply in industrial control modules requiring clean, programmable bias rails.
For engineers reviewing the IFX1963TBVATMA1 datasheet, IFX1963TBVATMA1 pinout, IFX1963TBVATMA1 application, or IFX1963TBVATMA1 equivalent, key selection criteria include dropout voltage (340 mV @ 1.5 A), enable-controlled sequencing, reverse polarity protection, thermal shutdown behavior, and compatibility with low-ESR ceramic capacitors in space-constrained SMD layouts.
Technical Context
The IFX1963TBVATMA1 implements a bandgap-referenced error amplifier driving a PNP pass transistor, enabling regulation down to 1.21 V via external resistor divider on the ADJ pin. Its saturation control circuitry maintains dropout as low as 340 mV across full load and temperature range (−40 °C to +125 °C).
Integrated protection includes foldback current limiting (typ. 1.8 A trip), thermal shutdown at ~150 °C junction temperature, and reverse polarity protection that blocks conduction when VIN < GND. The EN pin provides TTL/CMOS-compatible active-high enable logic with internal pull-down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5 A continuous - supports high-current digital ICs like FPGAs or microcontrollers without external boost stages. |
| Dropout Voltage | 340 mV @ 1.5 A - enables operation with input as low as 1.7 V for 1.35 V output, critical for battery-backed systems. |
| Output Noise | 40 µVRMS (10 Hz–100 kHz) - meets low-noise analog supply requirements for ADC references or RF biasing. |
| 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 12 V and 24 V rails. |
| Operating Temp | −40 °C to +125 °C - qualified for extended-temperature industrial environments, not automotive. |
| Enable Threshold | VIL ≤ 0.4 V, VIH ≥ 2.0 V - ensures robust logic-level interfacing with 3.3 V or 5 V microcontrollers. |
Pinout & Package
IFX1963TBVATMA1 uses the PG-TO263-5 surface-mount package with exposed thermal pad (TAB connected to GND). Pin 1 is EN, Pin 2 is IN, Pin 3 is GND, Pin 4 is OUT, Pin 5 is ADJ. The TAB must be soldered to a large GND copper area for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Active-high enable input | Pull-down internal; tie to IN for always-on operation; requires ≥2.0 V to activate regulator. |
| 2 - IN | Main power input | Accepts 2.5–20 V; requires local 10 µF ceramic capacitor to suppress line transients. |
| 3 - GND | Analog/digital ground reference | Common return for all internal circuits; connects to thermal pad (TAB) for heat dissipation. |
| 4 - OUT | Regulated output node | Delivers adjustable voltage; requires 10 µF ceramic cap with ESR ≤ 100 mΩ for stability. |
| 5 - ADJ | Feedback reference input | Connects to resistor divider between OUT and GND; sets VOUT = 1.21 × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Output | 1.21 V to (VIN − 0.34 V) - eliminates need for multiple fixed-voltage regulators in multi-rail systems. |
| Ceramic Cap Compatible | Stable with 10 µF, ESR ≤ 100 mΩ - reduces board area and cost vs. tantalum or electrolytic alternatives. |
| Reverse Polarity Protection | Blocks conduction if VIN < GND - prevents damage during incorrect power connection in field-deployed equipment. |
| Overtemperature Shutdown | Activates at ~150 °C junction temp - protects against sustained overload or poor heatsinking without latch-up. |
| Low-Noise Regulation | 40 µVRMS broadband noise - avoids signal integrity degradation in sensitive analog front-ends or clock buffers. |
Applications
| Industrial PLC I/O Module | Factory Automation Sensor Hub |
|---|---|
Use Scenario: Powering isolated analog input channels and digital isolators in modular I/O racks. IC Role / Device Role / Timing Role: Local LDO providing clean 3.3 V or 5 V rail from 12 V backplane, sequenced via controller GPIO. Use Value: 40 µVRMS noise ensures <1 LSB error in 16-bit ADC measurements; 340 mV dropout allows stable 3.3 V output even during 12 V rail sag. | Use Scenario: Supplying mixed-signal SoCs and MEMS sensor interfaces in distributed edge nodes. IC Role / Device Role / Timing Role: Adjustable 1.8 V or 2.5 V core supply with enable control synchronized to wake-up events. Use Value: ±1.5% output tolerance at light loads maintains SoC core voltage compliance; ceramic cap compatibility simplifies layout in dense sensor PCBs. |
| Test & Measurement Equipment | Energy Metering Front-End |
Use Scenario: Biasing precision op-amps and reference buffers in portable calibrators. IC Role / Device Role / Timing Role: Low-noise 5 V rail generator from Li-ion battery or USB input, disabled during sleep. Use Value: 40 µVRMS noise directly limits achievable SNR in µV-range differential measurements; EN pin enables zero-power standby. | Use Scenario: Powering metrology ADCs and isolation gate drivers in DIN-rail mounted meters. IC Role / Device Role / Timing Role: 3.3 V supply with reverse polarity protection guarding against wiring errors during installation. Use Value: Reverse polarity blocking prevents catastrophic failure during field technician miswiring; −40 °C to +125 °C rating covers enclosure temperature extremes. |
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, 400 mA max, no ADJ pin, integrated watchdog timer | Designed for automotive MCU supply; lacks adjustability and 1.5 A capability | Select only if fixed 5 V and automotive qualification (AEC-Q100) are required; not drop-in for IFX1963TBVATMA1. |
| TLV1117LV33 | Fixed 3.3 V output, 800 mA max, 600 mV dropout, no EN or reverse protection | General-purpose consumer-grade LDO; lower current, higher dropout, fewer protections | Choose only for cost-sensitive non-industrial designs where 3.3 V fixed output suffices and thermal margin is ample. |
Compared with TLE42744G and TLV1117LV33, IFX1963TBVATMA1 uniquely combines 1.5 A current, 340 mV dropout, adjustable output, EN control, reverse polarity protection, and industrial temperature range-making it optimal for high-flexibility, high-reliability industrial power nodes where programmability and fault resilience are mandatory.
Availability
IFX1963TBVATMA1 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation sensor hubs, test & measurement equipment, and energy metering front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IFX1963TBVATMA1 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 standards.
The IFX1963 belongs to Infineon's industrial-grade linear regulator product line, designed specifically for high-reliability non-automotive applications requiring wide input range, low noise, and robust fault protection in harsh operating environments.
FAQ
What is the minimum input voltage required to maintain regulation at 1.5 A output current?
The IFX1963TBVATMA1 requires VIN ≥ (VOUT + 0.34 V) to sustain 1.5 A load. For example, to deliver 3.3 V at full current, VIN must be ≥ 3.64 V. Below this, dropout occurs and output voltage drops linearly with input. This is specified in the "Electrical Characteristics" table under Dropout Voltage (VDR) with conditions of IOUT = 1.5 A and TJ = 25 °C.
Can the IFX1963TBVATMA1 be used with a 1 µF ceramic output capacitor?
No. Stability requires a minimum 10 µF ceramic capacitor with ESR ≤ 100 mΩ on the OUT pin, as confirmed in Section 4.2 "Functional Range" and Figure 12 "Stability Region". Using 1 µF violates the phase margin requirement and may cause oscillation or startup failure, especially over temperature.
Does the EN pin have an internal pull-up resistor?
No. The EN pin has an internal pull-down resistor (value not specified in datasheet), meaning the device defaults to OFF when EN is left floating. To enable the regulator, EN must be actively driven to ≥2.0 V (VIH); tying EN directly to IN is acceptable for always-on operation, per Pin Definition Table 3.2.
Is IFX1963TBVATMA1 qualified for automotive applications?
No. The datasheet explicitly states: "The IFX1963 is not qualified and manufactured according to the requirements of Infineon Technologies with regards to automotive and/or transportation applications." For automotive use, Infineon recommends the TLF1963 or other TLx-series regulators qualified to AEC-Q100 Grade 1 or 2.
IFX1963TBVATMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- 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-TO263-5-1
IFX1963TBVATMA1 FAQ
1.How can I place an order for IFX1963TBVATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX1963TBVATMA1 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 IFX1963TBVATMA1 reliable?
The price and inventory of IFX1963TBVATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX1963TBVATMA1 is usually 5 days.
3.What payment methods are accepted for IFX1963TBVATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX1963TBVATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX1963TBVATMA1?
IFX1963TBVATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX1963TBVATMA1 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 IFX1963TBVATMA1?
For technical support, including IFX1963TBVATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX1963TBVATMA1 requirements.
6.How does Aetrix verify that IFX1963TBVATMA1 is sourced from the original manufacturer or authorized distributors?
All IFX1963TBVATMA1 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 IFX1963TBVATMA1 meets industry standards.
7.What is the process for return or replacement of IFX1963TBVATMA1?
All IFX1963TBVATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX1963TBVATMA1, 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 IFX1963TBVATMA1 part is unused and in its original packaging.
Return procedure for IFX1963TBVATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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