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Texas Instruments TPS7B8833QKVURQ1
- Part No.:
- TPS7B8833QKVURQ1
- Manufacturer:
- Texas Instruments
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TPS7B8833QKVURQ1.pdf
- Description:
- AUTOMOTIVE 500-MA, 40-V, LOW-DRO
- Quantity:
- Payment:
- Shipping:
Inventory:13,944
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Product details
Overview
TPS7B8833QKVURQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-grade low-dropout linear regulator delivering a fixed 3.3 V output at up to 500 mA, with input voltage support from 3 V to 40 V (42 V absolute max), ±1.15% output accuracy over line/load/temperature, and 525 mV max dropout at 450 mA. It powers always-on battery-connected systems such as microcontrollers and CAN transceivers in body control modules.
For engineers reviewing the TPS7B8833QKVURQ1 datasheet, TPS7B8833QKVURQ1 pinout, TPS7B8833QKVURQ1 application, or TPS7B8833QKVURQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive operating conditions (–40°C to +125°C ambient, –40°C to +150°C junction), and real-world transient performance data including ±2% VOUT deviation during cold-crank and 100 µs load transient settling time.
Technical Context
The TPS7B8833QKVURQ1 implements a precision bandgap reference with integrated UVLO (2.6 V rising, 2.5 V falling), thermal shutdown (175°C trip, 20°C hysteresis), and brickwall current limiting (540–780 mA). Its architecture minimizes output overshoot during recovery from dropout-critical for cold-crank resilience.
It operates across full automotive temperature range with stable regulation using ≥2.2 µF ceramic output capacitance (ESR 0.001–2 Ω), achieves 70 dB PSRR at 1 kHz under 450 mA load, and maintains 17 µA typical quiescent current at light loads-enabling ultra-low-power standby operation without compromising transient response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V - eliminates external feedback network; supports logic-level MCU/CAN supply rails directly. |
| Max Output Current | 500 mA - sufficient for powering dual-core automotive MCUs with peripherals in BCM or gateway applications. |
| Output Accuracy | ±1.15% over line, load, and temperature - ensures sensor interface stability and ADC reference integrity without calibration. |
| Dropout Voltage | 525 mV max at 450 mA - enables regulation down to VIN = 3.825 V, surviving extended cold-crank events below 6 V. |
| Quiescent Current | 17 µA typical at light loads - extends battery life in always-on systems like RKE receivers during vehicle sleep mode. |
| Input Voltage Range | 3 V to 40 V (42 V absolute max) - withstands load dump transients per ISO 7637-2 Pulse 5a without external protection. |
| Thermal Resistance | RθJA = 30°C/W (TO-252) - requires minimal copper area for thermal management in space-constrained automotive PCBs. |
Pinout & Package
TPS7B8833QKVURQ1 uses a thermally enhanced 3-pin TO-252 (KVU) package (6.60 mm × 6.10 mm) with exposed thermal pad soldered to GND plane for optimal heat dissipation. Pin 1 (IN) accepts unregulated battery input; Pin 2 (GND) connects to system ground and thermal pad; Pin 3 (OUT) delivers regulated 3.3 V output.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Unregulated input power supply | Accepts 3–40 V battery rail; requires ≥0.1 µF ceramic capacitor close to pin for EMI suppression and transient immunity. |
| GND (Pin 2) | Ground reference and thermal path | Must be connected to large GND plane via low-impedance trace; thermal pad must be soldered to maximize RθJB = 8.6°C/W. |
| OUT (Pin 3) | Regulated 3.3 V output | Delivers up to 500 mA; requires ≥2.2 µF ceramic capacitor (X5R/X7R) with ESR 0.001–2 Ω placed adjacent to pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive electronics reliability requirements for under-hood and cabin modules. |
| Cold-crank transient response | ±2% VOUT deviation during 1-V/µs line slew - maintains MCU clocking and CAN bus timing integrity during engine start-up. |
| UVLO with hysteresis | 2.6 V rising / 2.5 V falling threshold (230 mV hysteresis) - prevents output oscillation during brown-out conditions near battery depletion. |
| Overshoot-reduction architecture | Minimizes output voltage overshoot when exiting dropout - avoids overvoltage stress on downstream 3.3 V logic and analog circuitry. |
| Stable with low-ESR ceramics | Supports 2.2–220 µF X5R/X7R capacitors - eliminates need for tantalum or electrolytic output caps, improving long-term reliability. |
Applications
| Body Control Module (BCM) | Automotive Gateway |
|---|---|
Use Scenario: Powering microcontroller, LIN transceivers, and LED drivers in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying core logic and communication interfaces with high line/load regulation. Use Value: ±1.15% DC accuracy ensures consistent ADC readings from door/window sensors; 500 mA capacity supports multi-peripheral wake-up states. |
Use Scenario: Always-on power domain for CAN FD and Ethernet AVB bridge controllers during vehicle sleep mode. IC Role / Device Role / Timing Role: Standby regulator maintaining real-time clock and network wake-up circuitry with ultra-low IQ. Use Value: 17 µA quiescent current enables <100 µA total system sleep current; 40 V input tolerance survives load dump without external TVS. |
| Remote Keyless Entry (RKE) | Reconfigurable Instrument Cluster |
Use Scenario: Battery-backed power for RF transmitter IC and secure authentication MCU in key fob units. IC Role / Device Role / Timing Role: Single-point 3.3 V source enabling fast wake-from-sleep response (<100 µs) for button-press events. Use Value: 100 µs load transient settling time ensures reliable RF modulation during rapid MCU activation; TO-252 package allows compact two-layer PCB layout. |
Use Scenario: Supplying display controller, graphics processor, and touch interface in digital dashboards with dynamic brightness control. IC Role / Device Role / Timing Role: Secondary LDO decoupling noise-sensitive analog front-end from digital switching domains. Use Value: 70 dB PSRR at 1 kHz suppresses ripple from backlight LED drivers; ±2% cold-crank response prevents display flicker during engine cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7B8733QKVURQ1 | Same pinout, 3.3 V fixed, but lower max current (350 mA) and higher dropout (650 mV @ 300 mA) | Suitable only for lower-power MCU-only nodes; insufficient for gateways with CAN FD + Ethernet PHY | Select if cost sensitivity outweighs current headroom and cold-crank margin requirements. |
| NCP163AMX330TBG | 3.3 V fixed, 250 mA, 15 µA IQ, but not AEC-Q100 qualified and limited to 20 V input | Restricted to non-safety-critical infotainment accessories; lacks load dump immunity and automotive temp range | Use only in non-automotive or secondary subsystems where AEC-Q100 and 40 V operation are not required. |
Compared with TPS7B8733QKVURQ1 and NCP163AMX330TBG, the TPS7B8833QKVURQ1 uniquely combines AEC-Q100 Grade 1 qualification, 500 mA output, 40 V input tolerance, and cold-crank-optimized transient response-making it the only option qualified for primary power domains in modern automotive gateways and BCMs.
Availability
TPS7B8833QKVURQ1 is available at Aetrix Electronics and suitable for automotive body control modules, reconfigurable instrument clusters, and always-on battery-connected gateways requiring stable component supply with full AEC-Q100 compliance and long-term lifecycle assurance.
Supply support for TPS7B8833QKVURQ1 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 specializing in analog and embedded processing technologies, with leadership in automotive power management and signal chain solutions.
The TPS7B88-Q1 product line was designed specifically for automotive battery-connected applications requiring high input voltage tolerance, ultra-low quiescent current, and robust transient performance during cold-crank and load dump events.
FAQ
What is the maximum input voltage rating for the TPS7B8833QKVURQ1?
The TPS7B8833QKVURQ1 has an absolute maximum input voltage of 42 V, with recommended operating range from 3 V to 40 V. This 40 V upper limit enables reliable operation during ISO 7637-2 Pulse 5a load dump events common in 12 V automotive systems, eliminating the need for external overvoltage clamping in most designs.
Does the TPS7B8833QKVURQ1 require an external enable signal?
No, the TPS7B8833QKVURQ1 does not include an enable pin. It operates autonomously using internal undervoltage lockout (UVLO) with 2.6 V rising and 2.5 V falling thresholds. The device powers up automatically when VIN exceeds the rising UVLO threshold and shuts down cleanly when VIN falls below the falling threshold-ideal for direct battery connection without control logic.
Can the TPS7B8833QKVURQ1 be used with ceramic output capacitors smaller than 2.2 µF?
No-TI specifies a minimum output capacitance of 2.2 µF (with ESR between 0.001 Ω and 2 Ω) for guaranteed stability across temperature and load. Using smaller values risks oscillation or degraded transient response. For space-constrained layouts, X5R/X7R 2.2 µF 16 V or 25 V ceramics in 0805 or 1206 packages are validated and recommended.
How does the TPS7B8833QKVURQ1 handle thermal overload conditions?
The TPS7B8833QKVURQ1 incorporates thermal shutdown with a 175°C trip point and 20°C hysteresis. When junction temperature exceeds 175°C, the device disables the pass transistor and halts regulation. It remains off until temperature drops to ~155°C, then resumes operation-preventing permanent damage while allowing recovery once cooling occurs.
Is the TPS7B8833QKVURQ1 compatible with 24 V commercial vehicle systems?
Yes-the TPS7B8833QKVURQ1 supports input voltages up to 40 V, making it fully compatible with 24 V nominal commercial vehicle systems (which commonly experience 36–40 V transients). Its AEC-Q100 Grade 1 qualification covers –40°C to +125°C ambient, meeting extended temperature requirements for heavy-duty truck and bus electronics.
TPS7B8833QKVURQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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):
- 3.3V
- 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:
- Enable
- Protection Features:
- Over Current, Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
TPS7B8833QKVURQ1 FAQ
1.How can I place an order for TPS7B8833QKVURQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7B8833QKVURQ1 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 TPS7B8833QKVURQ1 reliable?
The price and inventory of TPS7B8833QKVURQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7B8833QKVURQ1 is usually 5 days.
3.What payment methods are accepted for TPS7B8833QKVURQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7B8833QKVURQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7B8833QKVURQ1?
TPS7B8833QKVURQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7B8833QKVURQ1 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 TPS7B8833QKVURQ1?
For technical support, including TPS7B8833QKVURQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7B8833QKVURQ1 requirements.
6.How does Aetrix verify that TPS7B8833QKVURQ1 is sourced from the original manufacturer or authorized distributors?
All TPS7B8833QKVURQ1 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 TPS7B8833QKVURQ1 meets industry standards.
7.What is the process for return or replacement of TPS7B8833QKVURQ1?
All TPS7B8833QKVURQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS7B8833QKVURQ1, 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 TPS7B8833QKVURQ1 part is unused and in its original packaging.
Return procedure for TPS7B8833QKVURQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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