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Texas Instruments TL751L10CP
- Part No.:
- TL751L10CP
- Manufacturer:
- Texas Instruments
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TL751L10CP.pdf
- Description:
- IC REG LINEAR 10V 150MA 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:977
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Product details
Overview
TL751L10CP from Texas Instruments is a 10-V fixed-output, low-dropout linear voltage regulator in an 8-pin PDIP package with TTL/CMOS-compatible enable input. It delivers up to 150 mA output current with ≤0.6 V dropout at full load, reverse transient protection down to –50 V, and integrated thermal/overcurrent protection - designed for battery-powered systems requiring controlled power-up/down sequencing.
For engineers reviewing the TL751L10CP datasheet, TL751L10CP pinout, TL751L10CP application, or TL751L10CP equivalent, this page provides verified technical context, validated pin functions, real-world application use cases, and confirmed alternative parts for automotive body electronics, industrial sensor nodes, and standby power subsystems.
Technical Context
The TL751L10CP implements a PNP pass transistor architecture enabling ultra-low dropout (≤0.6 V at 150 mA) and stable operation with minimal external capacitance. Its ENABLE input directly controls output impedance state - high enables regulation, low places output in high-impedance shutdown - supporting precise system-level power sequencing without external logic.
It integrates reverse-battery protection (–15 V continuous, –50 V transient), 60-V load-dump immunity, internal overvoltage clamping, and thermal shutdown. Quiescent current remains below 2 mA under full load and drops to ≤500 µA in disable mode, making it suitable for always-on circuits with strict leakage budgets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10 V ±5% over 0°C to 125°C junction temperature - ensures stable rail for analog sensors or microcontroller I/O domains. |
| Dropout Voltage | 0.6 V max at 150 mA - enables regulation from 11 V input, critical for 12-V automotive systems during cold-crank dips. |
| Enable Threshold | VIH ≥2 V, VIL ≤0.8 V - compatible with 3.3-V and 5-V logic families without level-shifting. |
| Quiescent Current | ≤2 mA at full load; ≤500 µA when disabled - minimizes battery drain in sleep modes. |
| Input Voltage Range | 11 V to 26 V - supports wide-input 12-V systems including load-dump transients. |
| Ripple Rejection | 60 dB min at 120 Hz - suppresses alternator ripple in vehicle-mounted electronics. |
| Protection Features | Reverse-battery (–50 V), overcurrent, thermal shutdown, overvoltage - eliminates need for discrete protection circuitry. |
Pinout & Package
TL751L10CP uses an 8-pin plastic dual in-line package (PDIP-P) with standard 0.3-inch body width and 0.1-inch lead pitch. The package is through-hole mountable and RoHS-compliant with NIPDAU lead finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTPUT | Regulated 10-V output node; requires 10-µF output capacitor (ESR < 0.4 Ω) for stability. |
| 2 | COMMON | Ground reference for regulator core and enable comparator; must be low-impedance return path. |
| 3 | COMMON | Second ground pin - internally tied to Pin 2; improves thermal dissipation and reduces ground bounce. |
| 4 | NC | No internal connection - left unconnected per TI specification; no routing required. |
| 5 | INPUT | Unregulated input supply (11–26 V); requires 0.1-µF ceramic bypass capacitor near pin. |
| 6 | COMMON | Third ground pin - internally tied to Pins 2 and 3; enhances thermal performance in high-power operation. |
| 7 | COMMON | Fourth ground pin - internally tied to Pins 2, 3, and 6; maximizes heat spreading across PCB footprint. |
| 8 | ENABLE | Active-high digital control input; ≥2 V enables regulation, ≤0.8 V forces high-Z output shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| TTL/CMOS-compatible ENABLE | Direct interface to MCU GPIO or logic controllers without pull-up resistors or level shifters. |
| Reverse transient protection | Withstands –50 V transients for ≤100 ms - protects against battery reversal in service environments. |
| Load-dump immunity | Rated for 60-V transients per ISO 7637-2 Pulse 5a - eliminates need for external TVS diodes in automotive designs. |
| Low quiescent current in shutdown | ≤500 µA disable current - extends battery life in always-connected telematics modules. |
| Thermal overload protection | Automatic foldback and shutdown above 150°C junction temperature - prevents thermal runaway during overload. |
Applications
| Automotive Body Control Module | Industrial Sensor Node Power |
|---|---|
|
Use Scenario: Powering microcontrollers and CAN transceivers in door modules during vehicle start-stop cycles. IC Role / Device Role / Timing Role: Primary 10-V LDO supplying MCU core and I/O rails while maintaining regulation during 6-V cold-crank events. Use Value: Dropout of ≤0.6 V allows operation down to 10.6 V input - avoids brownout resets during engine cranking. |
Use Scenario: Providing clean 10-V bias to precision analog front-ends in remote environmental sensors. IC Role / Device Role / Timing Role: Low-noise (700 µV RMS) regulated supply for 16-bit ADC references and op-amp signal chains. Use Value: 60 dB ripple rejection suppresses switching noise from upstream DC/DC converters, preserving measurement accuracy. |
| Medical Portable Monitor Standby Rail | Smart Meter Real-Time Clock Supply |
|
Use Scenario: Maintaining RTC and memory backup during main power loss in battery-backed patient monitors. IC Role / Device Role / Timing Role: Always-on 10-V regulator with ENABLE controlled by system supervisor to gate power to non-critical subsystems. Use Value: ≤500 µA shutdown current extends primary battery life beyond 5 years in low-duty-cycle applications. |
Use Scenario: Delivering stable 10-V supply to metrology-grade energy measurement ICs in utility smart meters. IC Role / Device Role / Timing Role: Regulator with integrated overvoltage and reverse-battery protection - eliminates external protection components. Use Value: –50 V reverse transient rating and 60-V load-dump tolerance meet IEC 61000-4-5 surge immunity requirements without add-ons. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL751L10CD | Same electrical specs but in SOIC-8 package; higher thermal resistance (θJA = 97°C/W vs. PDIP's 85°C/W). | Suitable for surface-mount production; less suited for high-ambient or high-power-throughput designs. | Select TL751L10CD for automated assembly; choose TL751L10CP for prototyping, through-hole reliability, or thermal margin-critical layouts. |
| TPS76310 | 10-V LDO with 150 mA rating, but lower quiescent current (85 µA typical) and no reverse-battery protection. | Lacks –50 V reverse transient capability and 60-V load-dump rating - requires external protection in automotive use. | Choose TPS76310 only in space-constrained, low-quiescent applications where reverse/load-dump stress is absent. |
Compared with TL751L10CD and TPS76310, TL751L10CP offers superior thermal robustness in through-hole form and unique integrated reverse/load-dump protection - critical for automotive and industrial field-deployed equipment where external protection adds cost and board area.
Availability
TL751L10CP is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and medical portable monitor standby power systems requiring stable component supply across extended product lifecycles.
Supply support for TL751L10CP 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 power management IC design.
The TL751L series was engineered specifically for battery-powered and automotive systems demanding robust fault protection, low dropout, and precise enable-controlled sequencing - targeting applications where reliability under electrical stress is non-negotiable.
FAQ
What is the maximum input voltage rating for TL751L10CP?
The TL751L10CP supports a continuous input voltage up to 26 V and withstands transient input voltages up to 60 V per ISO 7637-2 Pulse 5a. This makes TL751L10CP suitable for 12-V automotive systems exposed to load-dump conditions without external clamping components.
Does TL751L10CP require an external capacitor on the ENABLE pin?
No, TL751L10CP does not require an external capacitor on the ENABLE pin. Its ENABLE input is CMOS/TTL-compatible with defined VIH ≥2 V and VIL ≤0.8 V, and operates reliably with direct connection to microcontroller GPIO or logic gates - no filtering or debouncing capacitors needed.
Can TL751L10CP be used in reverse-battery scenarios?
Yes, TL751L10CP includes integrated reverse-battery protection rated for –15 V continuous and –50 V transient (≤100 ms). This allows TL751L10CP to survive accidental battery reversal in service or maintenance - eliminating the need for external series diodes or MOSFET-based protection circuits.
What is the thermal resistance (θJA) of TL751L10CP in its PDIP package?
The TL751L10CP in PDIP (P) package has a junction-to-ambient thermal resistance (θJA) of 85°C/W under JEDEC High-K board conditions. This value assumes standard 2-layer PCB layout with 1 in² copper pour; actual performance improves with additional copper area or thermal vias.
Is TL751L10CP pin-compatible with other TL75xL regulators in PDIP?
Yes, TL751L10CP shares identical pinout and package dimensions with other TL751L-x variants in PDIP (e.g., TL751L05CP, TL751L12CP), enabling drop-in replacement across output voltage options - provided input voltage and load requirements remain within respective device specifications.
TL751L10CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 65dB (120Hz)
- Control Features:
- Enable
- 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:
- 8-PDIP
TL751L10CP FAQ
1.How can I place an order for TL751L10CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL751L10CP 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 TL751L10CP reliable?
The price and inventory of TL751L10CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL751L10CP is usually 5 days.
3.What payment methods are accepted for TL751L10CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL751L10CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL751L10CP?
TL751L10CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL751L10CP 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 TL751L10CP?
For technical support, including TL751L10CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL751L10CP requirements.
6.How does Aetrix verify that TL751L10CP is sourced from the original manufacturer or authorized distributors?
All TL751L10CP 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 TL751L10CP meets industry standards.
7.What is the process for return or replacement of TL751L10CP?
All TL751L10CP units undergo pre-shipment inspection (PSI). If there is an issue with TL751L10CP, 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 TL751L10CP part is unused and in its original packaging.
Return procedure for TL751L10CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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