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Infineon Technologies TLE42632GSXUMA1
- Part No.:
- TLE42632GSXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE42632GSXUMA1.pdf
- Description:
- IC REG LINEAR 5V 200MA DSO8-16
- Quantity:
- Payment:
- Shipping:
Inventory:1,556
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Product details
Overview
TLE42632GSXUMA1 from Infineon Technologies is a monolithic automotive-grade very low dropout linear voltage regulator in PG-DSO-8 package, delivering 5.0 V ±2% output at up to 180 mA load. It integrates power-on/undervoltage reset with programmable delay, watchdog monitoring for microcontrollers, and inhibit-controlled shutdown. Used in engine control units and body electronics where stable 5 V supply and system supervision are required.
For engineers reviewing the TLE42632GSXUMA1 datasheet, TLE42632GSXUMA1 pinout, TLE42632GSXUMA1 application, or TLE42632GSXUMA1 equivalent, key selection criteria include adjustable reset threshold (down to 3.5 V), watchdog trigger timing set by external capacitor CD, inhibit input for zero-standby operation, and integrated overtemperature and short-circuit protection.
Technical Context
The TLE42632GSXUMA1 implements a bandgap-referenced LDO architecture with internal current limiting and thermal shutdown. Its reset logic monitors regulated output voltage VQ against an externally adjustable threshold via resistor divider, while the watchdog circuit requires periodic pulses on W input to prevent RO assertion.
Power-on reset delay is set by external capacitor CD connected to CPOR pin; same capacitor sets watchdog timeout. Inhibit input (INH) disables regulation and reduces quiescent current to ~0 mA, enabling deep-sleep system states in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - Stable rail for MCU I/O and peripherals under battery voltage variation. |
| Max Output Current | 180 mA - Sufficient for small microcontrollers and sensor interfaces in body control modules. |
| Input Voltage Range | Up to 45 V - Supports 12 V and 24 V automotive systems including load dump transients. |
| Dropout Voltage | <0.5 V @ 180 mA - Enables regulation down to ~5.5 V input, critical during cranking. |
| Reset Threshold Range | Adjustable from 3.5 V to VQ,rt - Allows precise brown-out detection aligned with MCU requirements. |
| Watchdog Timeout | Set by external CD capacitor - Configurable supervision window for firmware execution monitoring. |
| Standby Current | ~0 mA with INH low - Eliminates parasitic drain in vehicle-off state. |
Pinout & Package
Package: PG-DSO-8 (exposed pad, RoHS-compliant, thermally enhanced SOIC variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply | Accepts 5.5–45 V; includes reverse polarity and transient protection. |
| GND | Ground reference | Power and signal return; tied to exposed thermal pad for heat dissipation. |
| VQ | Regulated output | 5.0 V ±2% source for downstream logic; low-dropout operation preserves headroom. |
| RO | Reset output | Active-low open-drain signal indicating VQ undervoltage or watchdog timeout. |
| W | Watchdog input | Edge-triggered input requiring periodic pulse to prevent RO assertion. |
| CPOR | Capacitor for POR delay | Connects external CD to set both power-on reset delay and watchdog timeout. |
| INH | Inhibit control | Active-high enable; pulls VQ low and reduces IQ to ~0 mA when low. |
| ADJ | Reset threshold adjust | Connects to resistor divider to scale reset threshold down to 3.5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated watchdog circuit | Monitors MCU firmware liveness via W input; prevents system lockup without external timer. |
| Adjustable reset threshold | External resistor divider on ADJ pin enables brown-out detection matched to specific MCU VDD min. |
| Programmable POR delay | Single CD capacitor sets both reset assertion delay and watchdog timeout - simplifies BOM. |
| Zero-quiescent-current shutdown | INH input disables regulation and draws ~0 mA - essential for battery-sensitive automotive modules. |
| Robust automotive protection | Includes reverse polarity, short-circuit, overtemperature, and load-dump tolerant input stage. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powering 5 V microcontroller and CAN transceiver during cold cranking and load dump events. IC Role / Device Role / Timing Role: Primary 5 V LDO regulator with system supervision (reset + watchdog) and inhibit-controlled sleep mode. Use Value: Maintains regulation down to 5.5 V input and survives 45 V transients; RO signal ensures safe MCU restart after brown-out. | Use Scenario: Supplying door module MCU and LIN transceiver with ultra-low standby current in vehicle-off state. IC Role / Device Role / Timing Role: Always-on 5 V regulator with INH-driven shutdown and programmable reset timing. Use Value: Draws ~0 mA when inhibited, eliminating parasitic drain; adjustable reset avoids false triggers during battery recovery. |
| Instrument Cluster | Advanced Driver Assistance System (ADAS) Sensor Hub |
Use Scenario: Providing clean 5 V rail to display controller and touch interface ICs with glitch-free power sequencing. IC Role / Device Role / Timing Role: Regulator with power-on reset and undervoltage detection to synchronize boot sequence. Use Value: CPOR capacitor ensures deterministic reset delay; ±2% output tolerance guarantees reliable I/O voltage margin. | Use Scenario: Powering radar or camera sensor interface ASICs requiring supervised 5 V supply with fail-safe reset. IC Role / Device Role / Timing Role: Supervised LDO with watchdog monitoring of host processor health. Use Value: W input detects MCU hang; RO forces controlled restart without requiring external supervisor IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator with supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA output, no watchdog or reset adjustment; fixed 5.0 V, ±1% accuracy. | Lacks system supervision features; suitable only for basic regulation without MCU monitoring. | Select when supervision is handled externally and higher current is needed. |
| MAX16126ATA+T | 5.0 V output, 200 mA, integrated watchdog and reset, but requires separate enable and reset pins (no INH). | Higher quiescent current (~10 µA) in shutdown; no inhibit-driven zero-IQ mode. | Select when watchdog and reset are required but zero-IQ shutdown is not critical. |
Compared with TLV73350PDBVR and MAX16126ATA+T, the TLE42632GSXUMA1 uniquely combines zero-quiescent-current inhibit shutdown, adjustable reset threshold, and shared capacitor programming for POR/watchdog - making it optimal for battery-conscious automotive ECUs requiring full supervision in one device.
Availability
TLE42632GSXUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, instrument clusters, and ADAS sensor hubs requiring stable component supply across automotive production lifecycles.
Supply support for TLE42632GSXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs.
The OPTIREG™ linear regulator product line delivers robust, AEC-Q100 qualified voltage regulators with integrated supervision features for automotive ECU power domains.
FAQ
What is the minimum input voltage required for regulation?
The TLE42632GSXUMA1 maintains regulation down to VIN = VQ + dropout voltage. With 5.0 V output and typical dropout <0.5 V at 180 mA, minimum functional input is approximately 5.5 V - sufficient to sustain operation during automotive cranking conditions where battery voltage dips to 6 V.
How is the watchdog timeout configured?
The watchdog timeout is set by the same external capacitor CD connected to the CPOR pin. Its value determines both the power-on reset delay and the maximum allowed interval between rising edges on the W input. Typical values range from 10 nF to 100 nF, yielding timeouts from ~10 ms to >1 s depending on capacitor tolerance and temperature drift.
Does the reset output RO drive a load directly?
No, RO is an open-drain output requiring an external pull-up resistor to a valid logic rail (e.g., VQ or another 5 V source). It sinks current when asserted (low), compatible with standard MCU reset inputs. The datasheet specifies maximum sink current of 10 mA and recommends 10 kΩ pull-up for noise immunity and speed.
Can the reset threshold be set below 3.5 V?
No - the internal reference and ADJ pin architecture limit the lowest configurable reset threshold to 3.5 V. This is specified in the datasheet as the minimum VQ,rt setting. Attempting lower thresholds via external divider will not further reduce the trip point due to internal clamping and comparator design constraints.
TLE42632GSXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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):
- -
- Current - Output:
- 180mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Delay, Inhibit, Reset Output, Watchdog
- 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-DSO-8-62
TLE42632GSXUMA1 FAQ
1.How can I place an order for TLE42632GSXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42632GSXUMA1 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 TLE42632GSXUMA1 reliable?
The price and inventory of TLE42632GSXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42632GSXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE42632GSXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42632GSXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42632GSXUMA1?
TLE42632GSXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42632GSXUMA1 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 TLE42632GSXUMA1?
For technical support, including TLE42632GSXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42632GSXUMA1 requirements.
6.How does Aetrix verify that TLE42632GSXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE42632GSXUMA1 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 TLE42632GSXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE42632GSXUMA1?
All TLE42632GSXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42632GSXUMA1, 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 TLE42632GSXUMA1 part is unused and in its original packaging.
Return procedure for TLE42632GSXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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