Texas Instruments TL750L05CKTTR
- Part No.:
- TL750L05CKTTR
- Manufacturer:
- Texas Instruments
- Package:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Datasheet:
-
TL750L05CKTTR.pdf
- Description:
- IC REG LIN 5V 150MA DDPAK/TO263
- Quantity:
- Payment:

- Shipping:

Inventory:960
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Product details
Overview
TL750L05CKTTR from Texas Instruments is a 5-V, 150-mA low-dropout linear voltage regulator in TO-263 (KTT) package, featuring ≤0.6 V dropout at full load, reverse transient protection down to –50 V, and integrated thermal/overcurrent protection. It delivers stable output for battery-powered systems requiring low quiescent current (≤2 mA) and robust load-dump immunity (60 V).
For engineers reviewing the TL750L05CKTTR datasheet, TL750L05CKTTR pinout, TL750L05CKTTR application, or TL750L05CKTTR equivalent, this device is selected for standby power, automotive body electronics, and industrial sensors where input voltage may dip near VOUT, reverse-battery events occur, or long-term reliability under thermal stress is critical.
Technical Context
The TL750L05CKTTR implements a PNP pass transistor architecture enabling ultra-low dropout operation without external compensation. Its internal circuitry integrates reverse-battery protection, overvoltage clamping, and thermal shutdown-functioning autonomously without enable control (unlike TL751L series).
Designed for fixed 5-V output, it operates across 6–26 V input range with ±2.5% output tolerance over 0°C to 125°C junction temperature. Ripple rejection exceeds 60 dB at 120 Hz, and output noise remains below 500 μVRMS (10 Hz–100 kHz), supporting noise-sensitive analog subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2.5% (guaranteed over 0–125°C and 0–150 mA load) |
| Dropout Voltage | 0.6 V max at 150 mA (enables regulation with VI as low as 5.6 V) |
| Quiescent Current | ≤2 mA over full temperature/load range (minimizes battery drain in always-on systems) |
| Input Voltage Range | 6 V to 26 V continuous; withstands 60 V load-dump transients |
| Reverse Input Protection | Rated to –50 V transient (protects against accidental battery reversal) |
| Thermal Shutdown | Activates at TJ ≥150°C (prevents permanent damage during overload or poor heatsinking) |
| Ripple Rejection | ≥60 dB at 120 Hz (attenuates alternator ripple in automotive 12-V systems) |
Pinout & Package
TL750L05CKTTR uses the TO-263 (KTT) surface-mount package with 3 terminals and an exposed thermal pad. The package measures 10.8 mm × 16.3 mm × 5.11 mm (A0 × B0 × K0) and requires soldering of the thermal pad for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INPUT) | Regulator input supply | Accepts 6–26 V DC; connects to bulk capacitor (≥0.1 μF) and upstream source |
| 2 (COMMON) | Ground reference and thermal path | Common return for input/output; electrically tied to exposed thermal pad for heat conduction |
| 3 (OUTPUT) | Regulated 5-V output | Delivers up to 150 mA; requires 10-μF output capacitor (ESR <0.4 Ω) for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low dropout voltage | 0.6 V max at 150 mA enables operation in brownout conditions where input dips to 5.6 V |
| Reverse transient protection | Withstands –50 V transients (100 ms), eliminating need for external diode in reverse-battery scenarios |
| Load-dump immunity | Survives 60-V transients per ISO 7637-2, suitable for direct connection to automotive battery rails |
| Thermal-overload protection | Auto-shutdown at 150°C junction temperature prevents failure during sustained overload or inadequate heatsinking |
| Overcurrent limiting | Internal foldback current limit protects against short-circuit output faults without external components |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Powering microcontrollers and CAN transceivers in door modules exposed to battery reversal and load-dump events. IC Role / Device Role / Timing Role: Primary 5-V LDO supplying logic and interface ICs; no enable control required. Use Value: Eliminates need for external reverse-protection diode and transient suppressors, reducing BOM count and PCB area. |
Use Scenario: Regulating power for low-power RTD or thermocouple signal chains in remote field transmitters. IC Role / Device Role / Timing Role: Stable 5-V rail for precision ADCs and analog front-ends operating at <2 mA quiescent current. Use Value: Maintains accuracy under wide input variation (e.g., 9–24 V solar/battery inputs) while rejecting 120-Hz ripple from AC adapters. |
| Medical Portable Monitor | Smart Home Hub |
Use Scenario: Supplying display backlight drivers and touch controllers in battery-backed portable ECG monitors. IC Role / Device Role / Timing Role: Low-noise 5-V source for analog signal paths; dropout performance extends battery runtime. Use Value: 500 μVRMS output noise avoids interference with microvolt-level biopotential signals. |
Use Scenario: Powering Wi-Fi SoCs and USB peripherals in always-on home automation hubs powered by wall adapters. IC Role / Device Role / Timing Role: Secondary 5-V regulator downstream of primary DC/DC converter; handles dynamic load steps. Use Value: Internal overcurrent and thermal protection prevent latch-up during USB hot-plug events or firmware crashes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL750L05CKCS | TO-220 (KCS) package; identical electrical specs but through-hole mounting and higher θJA (19°C/W vs. 25.3°C/W) | Preferred for prototyping, manual assembly, or high-reliability through-hole designs where thermal mass aids transient handling | Select when board assembly process favors through-hole or when larger heatsink interface is available |
| TL750L05CDR | SOIC-8 (D) package; same 5-V output but requires 8-pin footprint and external capacitors on all pins per layout guidelines | Suitable for space-constrained digital boards needing multiple regulators on dense layouts; lacks exposed thermal pad | Choose for mixed-signal PCBs with existing SOIC footprints and where thermal demands are moderate (<100 mA continuous) |
Compared with TL750L05CKCS and TL750L05CDR, TL750L05CKTTR offers superior thermal performance via its exposed pad and compact surface-mount form factor-critical for high-density automotive and industrial modules where airflow is limited and power density is high.
Availability
TL750L05CKTTR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and portable medical devices requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TL750L05CKTTR 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 decades of experience in automotive-grade power management ICs.
The TL750L series was designed specifically for battery-powered and automotive applications demanding high reliability under reverse polarity, load-dump, and thermal stress-targeting systems where safety and longevity are non-negotiable.
FAQ
What is the maximum continuous input voltage rating for TL750L05CKTTR?
The TL750L05CKTTR supports a continuous input voltage range of 6 V to 26 V. This upper limit ensures safe operation under nominal 24-V industrial or dual-battery automotive systems while maintaining regulation and thermal stability within its specified junction temperature range.
Does TL750L05CKTTR include an enable pin?
No, TL750L05CKTTR does not have an enable pin. It is part of the TL750L series, which lacks the ENABLE input found in the TL751L family. TL750L05CKTTR operates continuously when input voltage is applied within its valid range and cannot be externally disabled.
What output capacitor is required for stable operation of TL750L05CKTTR?
TL750L05CKTTR requires a 10-μF output capacitor with equivalent series resistance (ESR) less than 0.4 Ω. Tantalum or low-ESR ceramic capacitors meeting this specification ensure loop stability across temperature and load variations, as confirmed in the device's recommended operating conditions.
Can TL750L05CKTTR withstand automotive load-dump transients?
Yes, TL750L05CKTTR is rated for 60-V transient input voltage per ISO 7637-2, making it suitable for direct connection to automotive battery rails. This built-in protection eliminates the need for external TVS diodes in many body-control and infotainment applications.
What is the thermal resistance (θJA) of TL750L05CKTTR in its TO-263 package?
The TL750L05CKTTR in TO-263 (KTT) package has a junction-to-ambient thermal resistance (θJA) of 25.3°C/W under high-K board conditions per JESD 51-5. This value assumes proper soldering of the exposed thermal pad to a copper plane, enabling reliable 150-mA operation at ambient temperatures up to 125°C.
TL750L05CKTTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 2 mA
- Current - Supply (Max):
- 12 mA
- PSRR:
- 65dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Over Voltage, Reverse Polarity
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-3)
TL750L05CKTTR FAQ
1.How can I place an order for TL750L05CKTTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL750L05CKTTR 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 TL750L05CKTTR reliable?
The price and inventory of TL750L05CKTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL750L05CKTTR is usually 5 days.
3.What payment methods are accepted for TL750L05CKTTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL750L05CKTTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL750L05CKTTR?
TL750L05CKTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL750L05CKTTR 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 TL750L05CKTTR?
For technical support, including TL750L05CKTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL750L05CKTTR requirements.
6.How does Aetrix verify that TL750L05CKTTR is sourced from the original manufacturer or authorized distributors?
All TL750L05CKTTR 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 TL750L05CKTTR meets industry standards.
7.What is the process for return or replacement of TL750L05CKTTR?
All TL750L05CKTTR units undergo pre-shipment inspection (PSI). If there is an issue with TL750L05CKTTR, 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 TL750L05CKTTR part is unused and in its original packaging.
Return procedure for TL750L05CKTTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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