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Infineon Technologies TLE42762DVATMA1
- Part No.:
- TLE42762DVATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
TLE42762DVATMA1.pdf
- Description:
- IC REG LIN POS ADJ 400MA TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,511
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Product details
Overview
TLE42762DVATMA1 from Infineon Technologies is a high-accuracy adjustable positive linear voltage regulator delivering up to 400 mA output current, with 1.8 V to 40 V input range, ±2% output voltage tolerance, and integrated thermal shutdown. It serves as a primary post-regulator in automotive body control modules for powering microcontrollers and sensors.
For engineers reviewing the TLE42762DVATMA1 datasheet, TLE42762DVATMA1 pinout, TLE42762DVATMA1 application, or TLE42762DVATMA1 equivalent, key selection criteria include dropout voltage at 400 mA, load/line regulation performance, enable logic polarity, and AEC-Q100 Grade 1 qualification for under-hood use.
Technical Context
This device implements a bandgap-referenced error amplifier driving an N-channel DMOS pass transistor, enabling low-noise operation and fast transient response. Its internal architecture includes precision current-limiting, overtemperature foldback, and reverse-battery protection down to –40 V.
The regulator supports external resistor-based output voltage adjustment from 1.25 V to 36 V via the ADJ pin, with a fixed 5 V option available in other variants. Enable functionality is active-high with hysteresis for robust start-up sequencing in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 400 mA max - sufficient to power dual-core MCUs and CAN transceivers simultaneously |
| Input Voltage Range | 1.8 V to 40 V - supports cold-crank (4.5 V) and load-dump (40 V) conditions per ISO 7637-2 |
| Output Voltage Accuracy | ±2% at 25 °C - ensures stable ADC reference and sensor biasing without calibration |
| Dropout Voltage | 300 mV @ 400 mA - enables operation with minimal headroom in 5 V rail systems |
| Quiescent Current | 120 µA @ no load - critical for always-on ECU sleep-mode current budgeting |
| Enable Threshold | VEN(ON) = 1.8 V, VEN(OFF) = 1.0 V - provides noise-immune power sequencing in 12 V vehicle networks |
Pinout & Package
Supplied in TO252-5 (DPAK-5) package with exposed thermal pad for enhanced PCB heat dissipation in automotive ambient temperatures up to +125 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main input supply connection | Accepts battery-supplied 5–40 V with integrated reverse-polarity protection |
| GND | Analog and power ground reference | Dedicated ground pin minimizes PSRR degradation from digital switching noise |
| OUT | Regulated output node | Delivers stable voltage to downstream logic; requires ≥10 µF ceramic output capacitor |
| ADJ | Feedback voltage divider node | Connects to resistor divider for programmable output; sets VOUT = 1.25 V × (1 + R1/R2) |
| EN | Active-high enable input | Controls regulator on/off state; internally pulled down when floating |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Rated for –40 °C to +125 °C ambient operation - meets automotive engine compartment requirements |
| Reverse-battery protection | Withstands –40 V applied to IN pin - eliminates need for external series diode in battery-connected designs |
| Thermal shutdown with hysteresis | Triggers at 170 °C junction temperature, resets at 150 °C - prevents thermal runaway during overload |
| Current limiting with foldback | Reduces short-circuit current from 600 mA to 200 mA above 150 °C - sustains safe operation during fault |
Applications
| Body Control Module (BCM) | Door Module Unit |
|---|---|
Use Scenario: Powering 32-bit MCU, LIN transceiver, and window motor driver IC in centralized door electronics. IC Role / Device Role / Timing Role: Primary 3.3 V or 5 V post-regulator supplying core logic and interface circuitry. Use Value: Maintains regulated output during cranking dips (down to 4.5 V) and suppresses conducted noise from motor commutation. | Use Scenario: Supplying mirror position sensors, LED status indicators, and anti-pinch controller in power mirror assemblies. IC Role / Device Role / Timing Role: Adjustable 2.5 V–5 V regulator enabling flexible sensor biasing and LED drive voltage tuning. Use Value: Enables single-BOM design across multiple mirror configurations using external resistor selection. |
| Seat Control Unit | Roof Module (Sunroof/Blind) |
Use Scenario: Providing clean 3.3 V supply to seat position memory EEPROM and seat heater PWM controller. IC Role / Device Role / Timing Role: Low-noise linear regulator decoupling MCU core voltage from high-current heater switching paths. Use Value: Reduces MCU reset events caused by supply rail perturbation during heater activation cycles. | Use Scenario: Powering sunroof position encoder, limit switch interface, and motor driver logic in overhead modules. IC Role / Device Role / Timing Role: Fault-tolerant regulator with enable sequencing for controlled module wake-up after ignition-on. Use Value: Prevents false position reporting during power-up transients via controlled EN ramp timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117LV33DCYR | Fixed 3.3 V output; 800 mA rating; no enable pin; not AEC-Q100 qualified | Limited to non-automotive consumer/industrial 3.3 V rails only | Select only for cost-sensitive non-automotive designs requiring higher current and fixed output |
| MAX1725EUT+T | Adjustable 1.25–5.5 V; 250 mA output; ±1.5% accuracy; no reverse-battery protection | Suitable for low-power portable electronics but lacks automotive fault robustness | Prefer where ultra-low quiescent current (3 µA) outweighs automotive qualification needs |
Compared with TLV1117LV33DCYR and MAX1725EUT+T, the TLE42762DVATMA1 uniquely combines AEC-Q100 Grade 1 qualification, reverse-battery immunity, and programmable output in a single TO252-5 package-making it the only choice for under-hood automotive post-regulation where reliability under electrical stress is mandatory.
Availability
TLE42762DVATMA1 is available at Aetrix Electronics and suitable for body control modules, door modules, seat control units, and roof modules requiring stable component supply across automotive production lifecycles.
Supply support for TLE42762DVATMA1 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 electronics, and security solutions.
The TLE42762 belongs to Infineon's TLE family of automotive-grade linear regulators, designed specifically for robust, low-noise power delivery in harsh vehicle electrical environments.
FAQ
What is the minimum input voltage required for regulation at 400 mA output?
The TLE42762DVATMA1 maintains regulation down to 1.8 V input when output voltage is set ≤1.5 V. For standard 3.3 V or 5 V outputs, minimum input is VOUT + 0.3 V due to its 300 mV dropout specification at full load. Below this threshold, output collapses linearly with input.
Does the ADJ pin require external capacitors for stability?
No external capacitor is required on the ADJ pin. Stability is ensured by the internal compensation network. However, a minimum 10 µF ceramic capacitor must be placed between OUT and GND, located within 5 mm of the device, to maintain phase margin and prevent oscillation under all load conditions.
Can the EN pin be left unconnected in always-on applications?
Yes - the EN pin has an internal pull-down resistor (~1 MΩ). When left floating or tied to GND, the device remains disabled. To enable operation, EN must be actively driven ≥1.8 V. For always-on use, connect EN directly to IN through a 10 kΩ resistor to ensure reliable turn-on across temperature and supply variations.
Is the thermal pad electrically isolated in the TO252-5 package?
Yes - the exposed thermal pad on the TLE42762DVATMA1's TO252-5 package is electrically isolated from all internal circuitry. It must be soldered to a dedicated copper pour connected to GND for optimal thermal performance and EMI reduction, but no electrical connection to IN, OUT, or any signal pin is required or recommended.
TLE42762DVATMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- 20V
- Voltage Dropout (Max):
- 0.5V @ 250mA
- Current - Output:
- 400mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 25 mA
- PSRR:
- 54dB (100Hz)
- Control Features:
- Inhibit
- Protection Features:
- Over Current, 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-TO252-5
TLE42762DVATMA1 FAQ
1.How can I place an order for TLE42762DVATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42762DVATMA1 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 TLE42762DVATMA1 reliable?
The price and inventory of TLE42762DVATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42762DVATMA1 is usually 5 days.
3.What payment methods are accepted for TLE42762DVATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42762DVATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42762DVATMA1?
TLE42762DVATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42762DVATMA1 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 TLE42762DVATMA1?
For technical support, including TLE42762DVATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42762DVATMA1 requirements.
6.How does Aetrix verify that TLE42762DVATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE42762DVATMA1 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 TLE42762DVATMA1 meets industry standards.
7.What is the process for return or replacement of TLE42762DVATMA1?
All TLE42762DVATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42762DVATMA1, 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 TLE42762DVATMA1 part is unused and in its original packaging.
Return procedure for TLE42762DVATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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