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Texas Instruments TPS7B8750QKVURQ1
- Part No.:
- TPS7B8750QKVURQ1
- Manufacturer:
- Texas Instruments
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
TPS7B8750QKVURQ1.pdf
- Description:
- AUTOMOTIVE 500-MA, 40-V, LOW DRO
- Quantity:
- Payment:
- Shipping:
Inventory:6,954
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Product details
Overview
TPS7B8750QKVURQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive LDO regulator delivering 5V fixed output at up to 500mA, with 475mV max dropout at 450mA, ±0.85% output accuracy over line/load/temperature, and integrated power-good with programmable delay - designed for always-on battery-connected systems such as remote keyless entry modules and automotive gateways.
For engineers reviewing the TPS7B8750QKVURQ1 datasheet, TPS7B8750QKVURQ1 pinout, TPS7B8750QKVURQ1 application, or TPS7B8750QKVURQ1 equivalent, this page provides verified package mapping (TO-252-5 KVU), confirmed pin functions (IN, OUT, GND, DELAY, PG), thermal performance data (RθJA = 29.7°C/W), cold-crank transient response (±2% VOUT deviation), and functional safety documentation support.
Technical Context
The TPS7B8750QKVURQ1 implements a bandgap-referenced control loop with UVLO (2.6–2.82V rising threshold), thermal shutdown (175°C trip, 20°C hysteresis), and current limiting (540–780mA). Its architecture minimizes output overshoot during cold-crank recovery via dynamic pass-element biasing.
Power-good functionality uses an open-drain PG pin with internal 10–50kΩ pullup, default rising threshold at 85–95% VOUT, and adjustable delay via external capacitor on the DELAY pin (1.17–1.25V threshold, 1–2µA charging current), enabling precise power sequencing in multi-rail automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 5.0V ±0.85% over –40°C to +150°C junction temperature, enabling stable supply for CAN transceivers and MCUs. |
| Input voltage range | 3V to 40V (42V absolute max), supporting direct battery connection and surviving automotive load-dump transients. |
| Max output current | 500mA continuous, with current limit set at 540–780mA to protect against short-circuit faults. |
| Dropout voltage | 475mV max at 450mA (KVU package), allowing regulation even when VIN drops to ~5.475V under full load. |
| Quiescent current | 17µA typical at light loads, minimizing standby power loss in always-on applications like RKE receivers. |
| Power-good delay | Programmable via external capacitor on DELAY pin; default fixed delay is 100µs if pin floats. |
| Thermal resistance | RθJA = 29.7°C/W (KVU TO-252), enabling 2W+ dissipation with proper PCB copper area and thermal pad grounding. |
Pinout & Package
TPS7B8750QKVURQ1 is packaged in a thermally enhanced 5-pin TO-252 (KVU) with exposed thermal pad soldered to GND plane for optimal heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input power-supply voltage | Accepts 3–40V unregulated input; requires ≥0.1µF ceramic capacitor to GND placed adjacent to pin for EMI robustness. |
| PG | Open-drain power-good indicator | Signals valid output (high-Z when VOUT > 85–95% VOUT); must not connect directly to VOUT or biased rails. |
| GND | Ground reference | Common return path for IN, OUT, DELAY, and PG; connects to thermal pad for thermal management. |
| DELAY | Power-good delay adjustment | Connect external capacitor to GND to set delay time; floating enables 100µs fixed delay; 1.17–1.25V threshold triggers release. |
| OUT | Regulated output voltage | Delivers 5V ±0.85%; requires ≥2.2µF ceramic output capacitor with ESR ≤2Ω for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C ambient, –40°C to +150°C junction), certified for body electronics and instrument clusters. |
| Cold-crank transient response | ±2% VOUT deviation during 3V/µs input slew rate, ensuring uninterrupted operation during engine start. |
| Functional safety support | Documentation available for ISO 26262 ASIL-B system integration, including FIT rate and failure mode analysis. |
| UVLO with hysteresis | 2.6–2.82V rising threshold and 230mV hysteresis prevent oscillation during brownout conditions. |
| Stability with low-ESR caps | Stable with 2.2µF ceramic output capacitor (ESR down to 1mΩ), eliminating need for bulk electrolytic capacitors. |
Applications
| Remote Keyless Entry (RKE) | Automotive Gateway |
|---|---|
Use Scenario: Always-on receiver circuit powered directly from vehicle battery, requiring ultra-low quiescent current and cold-crank resilience. IC Role / Device Role / Timing Role: Primary 5V LDO supplying MCU and RF front-end; PG signal sequences wake-up logic after stable rail establishment. Use Value: 17µA IQ enables >10-year battery life in key fobs; ±2% cold-crank response prevents false wake-ups or missed commands. |
Use Scenario: Central communication hub connecting CAN, LIN, and Ethernet domains, operating continuously during vehicle sleep modes. IC Role / Device Role / Timing Role: Secondary 5V regulator for gateway microcontroller and CAN transceivers; programmable PG delay coordinates boot sequence with domain controllers. Use Value: 40V input range withstands load-dump events; ±0.85% accuracy ensures reliable CAN bus timing and sensor interface integrity. |
| Body Control Module (BCM) | Reconfigurable Instrument Cluster |
Use Scenario: Power management for lighting, door locks, and window controls in harsh under-hood environments. IC Role / Device Role / Timing Role: Local 5V supply for BCM microcontroller and driver ICs; thermal shutdown (175°C) protects against sustained overload. Use Value: RθJA = 29.7°C/W enables operation at +125°C ambient without derating; UVLO hysteresis prevents cycling during battery voltage sag. |
Use Scenario: High-reliability display controller requiring precise voltage for TFT bias and graphics processing. IC Role / Device Role / Timing Role: Precision 5V rail for display driver ICs and touch controller; PG signal validates rail before enabling backlight and GPU. Use Value: ±0.85% DC accuracy maintains display contrast and color fidelity; fast load transient response (<100µs settling) prevents screen flicker during UI transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B8733QKVURQ1 | Fixed 3.3V output; identical package, thermal specs, and feature set (PG, DELAY, UVLO, thermal shutdown). | Used where 3.3V logic rails dominate (e.g., ADAS camera modules), not suitable for 5V-only systems like legacy CAN nodes. | Select when system requires 3.3V instead of 5V; pinout and layout are identical - only output voltage differs. |
| TLV73350PQDBVRQ1 | Lower IQ (2.5µA), lower current (300mA), no PG/delay features, smaller SOT-23-5 package (RθJA = 120°C/W). | Suitable for ultra-low-power sensor nodes but lacks sequencing capability and cannot survive load-dump transients (max VIN = 5.5V). | Choose only for space-constrained, non-critical 5V rails with no sequencing or high-voltage requirements. |
Compared with TPS7B8733QKVURQ1, the TPS7B8750QKVURQ1 delivers higher output voltage for legacy 5V peripherals; compared with TLV73350PQDBVRQ1, it supports full automotive transients and power sequencing but consumes more board area and quiescent current.
Availability
TPS7B8750QKVURQ1 is available at Aetrix Electronics and suitable for automotive body electronics, instrument cluster power supplies, and always-on gateway modules requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for TPS7B8750QKVURQ1 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 company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies for automotive, industrial, and communications markets.
The TPS7B87-Q1 product line was engineered specifically for automotive battery-connected applications demanding high input voltage tolerance, ultra-low IQ, and functional safety compliance - targeting body electronics, gateways, and reconfigurable displays.
FAQ
What is the maximum input voltage rating for the TPS7B8750QKVURQ1?
The TPS7B8750QKVURQ1 has an absolute maximum input voltage of 42V, with recommended operating range from 3V to 40V. This allows direct connection to 12V and 24V automotive batteries while surviving load-dump transients. Exceeding 42V risks permanent damage per the Absolute Maximum Ratings table in the datasheet.
Does the TPS7B8750QKVURQ1 support adjustable output voltage?
No, the TPS7B8750QKVURQ1 provides a fixed 5.0V output. It belongs to the TPS7B87-Q1 family with fixed-output variants only (3.3V and 5V). Adjustable versions such as TPS7B87xx-Q1 with external resistor dividers are not offered; output voltage is internally trimmed and not user-configurable.
How is the power-good delay configured on the TPS7B8750QKVURQ1?
The power-good delay on the TPS7B8750QKVURQ1 is set by connecting an external capacitor between the DELAY pin and GND. The delay time scales linearly with capacitance (e.g., 100nF yields ~80ms). Leaving the DELAY pin floating selects the default fixed delay of 100µs. The DELAY pin has a 1.17–1.25V threshold and draws 1–2µA charging current.
What thermal performance can be expected from the TPS7B8750QKVURQ1 in TO-252 package?
In the KVU (TO-252-5) package, the TPS7B8750QKVURQ1 achieves RθJA = 29.7°C/W when mounted on a standard 2oz copper 4-layer JEDEC test board with thermal pad soldered to GND. With adequate PCB copper area, it can dissipate >2W continuously while maintaining TJ < 150°C - sufficient for 500mA at 12V input (5V output).
Is the TPS7B8750QKVURQ1 compatible with ceramic output capacitors?
Yes, the TPS7B8750QKVURQ1 is stable with ceramic output capacitors ≥2.2µF and ESR as low as 1mΩ. Unlike older LDOs, it does not require minimum ESR for stability. A 2.2µF X7R 16V ceramic capacitor is recommended for optimal transient response and footprint efficiency.
TPS7B8750QKVURQ1 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):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.575V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 26 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Power Good
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-5
TPS7B8750QKVURQ1 FAQ
1.How can I place an order for TPS7B8750QKVURQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7B8750QKVURQ1 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 TPS7B8750QKVURQ1 reliable?
The price and inventory of TPS7B8750QKVURQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7B8750QKVURQ1 is usually 5 days.
3.What payment methods are accepted for TPS7B8750QKVURQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7B8750QKVURQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7B8750QKVURQ1?
TPS7B8750QKVURQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7B8750QKVURQ1 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 TPS7B8750QKVURQ1?
For technical support, including TPS7B8750QKVURQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7B8750QKVURQ1 requirements.
6.How does Aetrix verify that TPS7B8750QKVURQ1 is sourced from the original manufacturer or authorized distributors?
All TPS7B8750QKVURQ1 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 TPS7B8750QKVURQ1 meets industry standards.
7.What is the process for return or replacement of TPS7B8750QKVURQ1?
All TPS7B8750QKVURQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS7B8750QKVURQ1, 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 TPS7B8750QKVURQ1 part is unused and in its original packaging.
Return procedure for TPS7B8750QKVURQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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