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Texas Instruments TL750L05CKCS
- Part No.:
- TL750L05CKCS
- Manufacturer:
- Texas Instruments
- Package:
- TO-220-3
- Datasheet:
-
TL750L05CKCS.pdf
- Description:
- IC REG LINEAR 5V 150MA TO220-3
- Quantity:
- Payment:
- Shipping:
Inventory:457
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Product details
Overview
TL750L05CKCS from Texas Instruments is a fixed-output 5-V low-dropout linear voltage regulator in TO-220 (KCS) package, designed for battery-powered systems. It delivers up to 150 mA output current with dropout voltage ≤0.6 V at full load, reverse transient protection down to –50 V, and integrated thermal-overload and overcurrent limiting. It is used in automotive body electronics and industrial sensor nodes requiring stable low-quiescent-power regulation.
For engineers reviewing the TL750L05CKCS datasheet, TL750L05CKCS pinout, TL750L05CKCS application, or TL750L05CKCS equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternative parts with documented functional and packaging differences.
Technical Context
The TL750L05CKCS implements a PNP pass transistor architecture enabling ultra-low dropout operation without external compensation. Its internal circuitry includes reverse-battery protection, 60-V load-dump tolerance, and thermal shutdown triggered at ~150°C junction temperature.
It operates across 6 V to 26 V input range with output voltage tightly regulated at 4.75 V to 5.25 V over 0°C–125°C junction temperature and 0–150 mA load. Quiescent current remains ≤2 mA under full load and full temperature range, supporting standby power integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5 V ±2.5% (4.75–5.25 V) over 0–125°C and 0–150 mA - ensures compatibility with 5-V logic and analog subsystems without external trimming. |
| Dropout Voltage | ≤0.6 V at 150 mA - enables regulation from 5.6-V input, critical for single-cell LiFePO₄ or degraded lead-acid battery operation. |
| Input Voltage Range | 6 V to 26 V continuous - supports wide automotive battery transients and industrial 24-V rail conditioning. |
| Quiescent Current | ≤2 mA at 150 mA load and 0–125°C - minimizes standby power loss in always-on monitoring circuits. |
| Reverse Transient Protection | Withstands –50 V for ≤100 ms - protects against battery reversal during service or jump-start events. |
| Ripple Rejection | 60–65 dB at 120 Hz - suppresses alternator ripple in automotive applications without additional filtering. |
| Thermal Shutdown Threshold | ~150°C virtual junction temperature - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
TL750L05CKCS uses the TO-220 (KCS) package: 3-pin, through-hole, thermally enhanced with isolated tab (electrically connected to COMMON pin). Mounting requires mechanical fastening and thermal interface to heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (COMMON) | Ground reference and thermal path | Electrically tied to metal tab; must be connected to system ground plane and heatsink for thermal performance and stability. |
| Pin 2 (OUTPUT) | Regulated 5-V output | Delivers up to 150 mA; requires ≥10-μF output capacitor (ESR <0.4 Ω) for loop stability across temperature and load. |
| Pin 3 (INPUT) | Unregulated input supply | Accepts 6–26 V; requires ≥0.1-μF ceramic bypass capacitor close to pin to suppress high-frequency noise and transients. |
Key Features
| Feature | Design Value |
|---|---|
| Very low dropout voltage | ≤0.6 V at 150 mA enables operation from marginal input sources like partially discharged batteries or post-dropper rails. |
| Reverse transient protection | Rated to –50 V for 100 ms eliminates need for external series diode in battery-reversal-prone environments. |
| 60-V load-dump protection | Withstands ISO 7637-2 Pulse 5a transients without latch-up or degradation - certified for automotive under-hood use. |
| Internal thermal overload protection | Auto-recovers after cooldown - avoids system-level fault propagation during temporary overloads or inadequate heatsinking. |
| Low quiescent current | ≤2 mA across full operating range preserves battery life in always-on remote sensors and telematics modules. |
Applications
| Automotive Body Control Module (BCM) | Industrial Temperature Sensor Node |
|---|---|
|
Use Scenario: Powering microcontroller, CAN transceiver, and analog front-end in door module exposed to battery transients and temperature extremes. IC Role / Device Role / Timing Role: Primary 5-V LDO supplying core logic and interface ICs; no timing function. Use Value: 60-V load-dump tolerance and –50-V reverse transient rating eliminate need for external TVS or diode protection, reducing BOM count by two components. |
Use Scenario: Regulating power for a battery-operated RTD/thermocouple measurement node deployed in HVAC ducts or factory floors. IC Role / Device Role / Timing Role: Stable 5-V bias source for precision ADC and signal conditioner; no clock generation. Use Value: ≤2 mA quiescent current extends 2× AA battery life beyond 2 years in sleep-wake cycle operation, verified per TI SLVS017U test conditions. |
| Medical Portable Diagnostic Device | Smart Meter Auxiliary Power Rail |
|
Use Scenario: Providing clean 5-V supply to display driver and touch controller in handheld ultrasound probe with limited PCB space and thermal mass. IC Role / Device Role / Timing Role: Low-noise (500 μV RMS) voltage source for analog display interface; no timing role. Use Value: TO-220 (KCS) package allows direct mounting to metal enclosure for passive cooling - eliminates need for discrete heatsink in compact enclosures. |
Use Scenario: Generating auxiliary 5-V rail for metrology ASIC and RF sub-GHz transceiver in utility smart meter with long field lifetime requirements. IC Role / Device Role / Timing Role: Main power regulator for non-critical subsystems; not involved in timekeeping or pulse generation. Use Value: Internal overcurrent limiting (150 mA) and thermal shutdown prevent cascade failure during ESD events on communication lines, improving field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL750L05CKC | Same electrical specs and TO-220 package, but KCS variant has isolated tab; KC has electrically connected tab (COMMON = tab). | KC requires insulating hardware when mounting to grounded heatsink; KCS allows direct mounting without isolation. | Select TL750L05CKCS when mechanical mounting simplicity and thermal coupling to grounded chassis are required. |
| LM2931AZ-5.0/NOPB | 5-V LDO with 100 mA output, 0.6-V dropout, but lacks 60-V load-dump rating and reverse-transient protection. | Not qualified for automotive transient immunity; requires external protection for ISO 7637-2 compliance. | Choose LM2931AZ-5.0/NOPB only for cost-sensitive industrial applications where transients are externally clamped. |
Compared with TL750L05CKCS, TL750L05CKC demands insulation between tab and heatsink, while LM2931AZ-5.0/NOPB shifts transient protection burden to external components - making TL750L05CKCS the only option delivering integrated 60-V load-dump and –50-V reverse transient hardening in TO-220 form factor.
Availability
TL750L05CKCS is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, portable medical diagnostics, and smart meter auxiliary power rails requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TL750L05CKCS 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, embedded processing, and power management technologies with over 50 years of automotive and industrial qualification heritage.
The TL750L series was engineered specifically for battery-powered systems needing robust transient immunity and ultra-low quiescent current - targeting automotive, industrial, and medical applications where reliability under harsh electrical conditions is mandatory.
FAQ
What is the maximum continuous input voltage rating for TL750L05CKCS?
The TL750L05CKCS supports a continuous input voltage of up to 26 V, as specified in the Absolute Maximum Ratings table of the SLVS017U datasheet. This rating applies across the full operating junction temperature range (0°C to 125°C) and ensures safe operation in 24-V industrial and automotive systems with nominal supply tolerances.
Does TL750L05CKCS include an enable pin?
No, TL750L05CKCS does not have an enable pin. It belongs to the TL750L series, which is always-on. The TL751L series (e.g., TL751L05CKCS) adds an ENABLE input; TL750L05CKCS lacks this feature and powers up immediately when input voltage exceeds minimum start-up threshold (~6 V).
What output capacitor is required for stable operation of TL750L05CKCS?
TI specifies a minimum 10-μF tantalum or aluminum electrolytic capacitor with ESR < 0.4 Ω on the output of TL750L05CKCS. Ceramic capacitors may be used only if combined with a series resistor to emulate required ESR, as low-ESR ceramics can cause instability per Figure 1 in SLVS017U.
Is TL750L05CKCS RoHS compliant and lead-free?
Yes, TL750L05CKCS is RoHS compliant and features a matte tin (Sn) lead finish, as confirmed in the Package Option Addendum. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements and is rated for peak reflow at 260°C, though MSL is marked N/A for TO-220 packages due to their through-hole construction.
How does the thermal performance of TL750L05CKCS compare to SOIC-packaged variants?
TL750L05CKCS in TO-220 (KCS) offers θJA = 19°C/W (high-K board), significantly better than SOIC-8 (D) variants (θJA = 97°C/W). This allows TL750L05CKCS to dissipate ~5× more power at the same ambient temperature - enabling 150 mA output at higher input-output differentials without active cooling.
TL750L05CKCS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- TO-220-3
TL750L05CKCS FAQ
1.How can I place an order for TL750L05CKCS through Aetrix?
Please submit a Request for Quotation (RFQ) for TL750L05CKCS 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 TL750L05CKCS reliable?
The price and inventory of TL750L05CKCS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL750L05CKCS is usually 5 days.
3.What payment methods are accepted for TL750L05CKCS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL750L05CKCS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL750L05CKCS?
TL750L05CKCS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL750L05CKCS 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 TL750L05CKCS?
For technical support, including TL750L05CKCS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL750L05CKCS requirements.
6.How does Aetrix verify that TL750L05CKCS is sourced from the original manufacturer or authorized distributors?
All TL750L05CKCS 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 TL750L05CKCS meets industry standards.
7.What is the process for return or replacement of TL750L05CKCS?
All TL750L05CKCS units undergo pre-shipment inspection (PSI). If there is an issue with TL750L05CKCS, 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 TL750L05CKCS part is unused and in its original packaging.
Return procedure for TL750L05CKCS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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