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Texas Instruments TLE4275QKVURQ1
- Part No.:
- TLE4275QKVURQ1
- Manufacturer:
- Texas Instruments
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
TLE4275QKVURQ1.pdf
- Description:
- IC REG LINEAR 5V 450MA TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,806
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Product details
Overview
TLE4275QKVURQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LDO regulator delivering 5.0 V ±2.0% output at up to 500 mA, with 40 V max input, 500 mV dropout at 300 mA, and 28 µA quiescent current - designed for always-on battery-connected systems such as automotive gateways and remote keyless entry modules.
For engineers reviewing the TLE4275QKVURQ1 datasheet, TLE4275QKVURQ1 pinout, TLE4275QKVURQ1 application, or TLE4275QKVURQ1 equivalent, key selection criteria include cold-crank transient immunity (±2% VOUT deviation), programmable power-good delay via external capacitor, reverse-polarity protection, and compatibility with low-ESR 2.2 µF output capacitors.
Technical Context
The TLE4275QKVURQ1 implements a high-stability bandgap reference and error amplifier driving a PNP pass transistor, enabling tight DC accuracy across –40°C to +150°C junction temperature. Its architecture minimizes overshoot during dropout recovery and supports fast line transient response under 3 V/µs VIN slew rates.
Power-good functionality uses an internal comparator monitoring VOUT against a 4.75 V rising threshold with 200 mV hysteresis; delay timing is set by an external capacitor on the DELAY pin, with a 1.21 V upper threshold and 0.4 V lower threshold for precise reset timing control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 5.0 V ±2.0% over line, load, and temperature - ensures reliable MCU/CAN transceiver biasing in wide automotive operating conditions. |
| Max input voltage | 40 V - withstands load-dump transients per ISO 7637-2 without external clamping. |
| Max output current | 500 mA - sufficient for powering multiple low-power automotive subsystems from a single rail. |
| Dropout voltage | 500 mV max at 300 mA - enables regulation down to VIN = 5.5 V, critical for cold-crank operation. |
| Quiescent current | 28 µA typ at IOUT = 1 mA - minimizes battery drain in always-on applications like RKE and gateways. |
| Line transient response | ±2% VOUT deviation during cold-crank - maintains system stability during engine start events. |
| Power-good threshold | 4.75 V rising, 4.55 V falling - provides clean, glitch-free reset signaling for microcontrollers. |
Pinout & Package
Package: KVU (TO-252-5), 6.6 mm × 10.11 mm, thermally enhanced surface-mount package with exposed thermal pad connected to GND for improved heat dissipation (RθJA = 28.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input power supply | Accepts 3.0–40 V battery input; requires ≥0.1 µF ceramic capacitor to GND for EMI suppression and transient stability. |
| OUT | Regulated output | Delivers stable 5.0 V; stable with ≥2.2 µF output capacitance and ≤2 Ω ESR - enables compact, low-BOM designs. |
| GND | Ground reference | Dual GND pins (pins 2 & 3) reduce ground impedance and improve noise immunity in noisy automotive environments. |
| RESET | Active-high power-good indicator | Open-drain output signals valid VOUT; pulls high via external pull-up; used for MCU reset sequencing and system health monitoring. |
| DELAY | Reset delay timing input | Capacitor-connected pin sets PG delay time; floating for fixed internal delay; avoids permanent GND current increase if shorted to GND. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient (–40°C to +150°C junction), enabling use in instrument clusters and BCMs without derating. |
| Programmable power-good delay | External capacitor on DELAY pin allows system-specific reset timing - eliminates need for external timers or FPGA logic. |
| Ultra-low quiescent current | 28 µA typical at 1 mA load - extends battery life in always-on modules where standby current is tightly budgeted. |
| Stable with small output capacitor | Supports 2.2 µF ceramic output cap (vs legacy 22 µF) - reduces board area, cost, and improves reliability vs electrolytic alternatives. |
| Robust transient immunity | ±2% VOUT deviation during cold-crank and 1 V/µs line transients - prevents false resets and brownouts in harsh automotive environments. |
Applications
| Automotive Instrument Clusters | Body Control Modules (BCM) |
|---|---|
Use Scenario: Powering digital displays, backlight drivers, and microcontrollers in driver-facing dashboards subject to frequent ignition cycles and vibration. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying core logic and CAN interface ICs; provides clean, regulated rail with integrated power-good for safe boot sequencing. Use Value: Maintains ±2% output accuracy across –40°C to +125°C ambient and survives 40 V load dumps - eliminating need for secondary protection circuitry. | Use Scenario: Supplying door module controllers, window lift ECUs, and lighting drivers in distributed vehicle architectures. IC Role / Device Role / Timing Role: Always-on 5 V regulator for wake-up logic and CAN transceivers; RESET signal synchronizes firmware initialization after battery reconnection. Use Value: 28 µA quiescent current prevents excessive parasitic drain; programmable DELAY pin enables configurable wake-up timing across multiple BCM variants. |
| Automotive Gateways | Remote Keyless Entry (RKE) |
Use Scenario: Providing stable 5 V to multi-protocol gateway MCUs managing CAN FD, LIN, and Ethernet traffic between domains. IC Role / Device Role / Timing Role: High-current LDO (500 mA) powering gateway SoC I/O rails and communication PHYs; RESET asserts only when VOUT reaches 4.75 V with hysteresis. Use Value: Withstands 3 V/µs line transients and recovers rapidly from dropout - ensuring uninterrupted domain bridging during engine cranking. | Use Scenario: Powering ultra-low-power RKE receiver ICs and sub-GHz RF transceivers that must operate continuously from vehicle battery. IC Role / Device Role / Timing Role: Always-on LDO with reverse-polarity protection; delivers 5 V at <30 µA IQ to extend coin-cell or battery life beyond 10 years. Use Value: 2.2 µF minimum output capacitance enables miniaturized PCB layout; thermal shutdown (175°C) protects against enclosure overheating in sealed modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA max output, 1.8–5.5 V input, no power-good, non-AEC-Q100 | Limited to infotainment peripherals or non-safety-critical modules; lacks cold-crank immunity and automotive qualification | Select only for cost-sensitive, non-automotive designs where 500 mA and AEC-Q100 are not required. |
| NCP1117ST50T3G | 800 mA max, 12 V max input, no power-good, TO-220 package, ±2% accuracy | Requires external UVLO and reset IC; unsuitable for 40 V load-dump environments; larger thermal footprint | Use only in legacy 12 V systems with robust external protection; not recommended for new automotive designs. |
Compared with TLV73350PDBVR and NCP1117ST50T3G, the TLE4275QKVURQ1 uniquely combines AEC-Q100 Grade 1 qualification, 40 V input tolerance, programmable power-good, and 28 µA quiescent current - making it the only drop-in solution for modern battery-connected automotive modules requiring guaranteed reliability and minimal BOM count.
Availability
TLE4275QKVURQ1 is available at Aetrix Electronics and suitable for automotive instrument clusters, body control modules, and always-on gateway applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TLE4275QKVURQ1 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with deep expertise in automotive-grade power management ICs.
The TLE4275-Q1 product line was engineered specifically for battery-connected automotive subsystems demanding ultra-low quiescent current, high transient immunity, and integrated power-good functionality - targeting gateways, RKE, and BCMs.
FAQ
What is the maximum input voltage rating for the TLE4275QKVURQ1?
The TLE4275QKVURQ1 has an absolute maximum input voltage of 42 V and a recommended operating range of 3.0 V to 40 V. This 40 V upper limit enables reliable operation during ISO 7637-2 load-dump transients without external clamping components, a critical requirement for modern 12 V automotive electrical systems.
Does the TLE4275QKVURQ1 support programmable power-good delay?
Yes, the TLE4275QKVURQ1 supports programmable power-good delay via an external capacitor connected between the DELAY pin and GND. The delay time is determined by the capacitor value and internal thresholds (1.21 V upper, 0.4 V lower); leaving the DELAY pin floating selects a fixed internal delay. This eliminates the need for external timing ICs in automotive reset sequencing.
What output capacitor is required for stable operation of the TLE4275QKVURQ1?
The TLE4275QKVURQ1 requires a minimum 2.2 µF ceramic output capacitor with ESR ≤ 2 Ω for stable operation. This is a significant reduction from the legacy 22 µF requirement, enabling smaller PCB footprints and higher reliability compared to electrolytic solutions - confirmed in TI's SLVS647J datasheet Section 5.3.
Is the TLE4275QKVURQ1 qualified for automotive use?
Yes, the TLE4275QKVURQ1 is AEC-Q100 qualified for automotive applications, Grade 1 (–40°C to +125°C ambient, –40°C to +150°C junction). It includes built-in overcurrent, overtemperature (175°C shutdown), and reverse-polarity protection - meeting stringent reliability requirements for body electronics and gateway modules.
What is the quiescent current of the TLE4275QKVURQ1 at light load?
The TLE4275QKVURQ1 draws 28 µA typical quiescent current at IOUT = 1 mA and TJ = 25°C, rising to 55 µA maximum at TJ ≤ 85°C. This ultra-low IQ enables multi-year battery life in always-on applications such as remote keyless entry receivers and gateway wake-up circuits.
TLE4275QKVURQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 450mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 22 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-5
TLE4275QKVURQ1 FAQ
1.How can I place an order for TLE4275QKVURQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4275QKVURQ1 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 TLE4275QKVURQ1 reliable?
The price and inventory of TLE4275QKVURQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4275QKVURQ1 is usually 5 days.
3.What payment methods are accepted for TLE4275QKVURQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4275QKVURQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4275QKVURQ1?
TLE4275QKVURQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4275QKVURQ1 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 TLE4275QKVURQ1?
For technical support, including TLE4275QKVURQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4275QKVURQ1 requirements.
6.How does Aetrix verify that TLE4275QKVURQ1 is sourced from the original manufacturer or authorized distributors?
All TLE4275QKVURQ1 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 TLE4275QKVURQ1 meets industry standards.
7.What is the process for return or replacement of TLE4275QKVURQ1?
All TLE4275QKVURQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4275QKVURQ1, 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 TLE4275QKVURQ1 part is unused and in its original packaging.
Return procedure for TLE4275QKVURQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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