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Texas Instruments TPS61378QWRTERQ1
- Part No.:
- TPS61378QWRTERQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS61378QWRTERQ1.pdf
- Description:
- IC REG BOOST ADJ 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,923
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Product details
Overview
TPS61378QWRTERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous boost converter with integrated load disconnect, 25-µA quiescent current, 2.3V–14V input, 4.0V–18.5V programmable output, and 1A–4.8A programmable peak current limit-designed for ADAS power rails requiring ultra-low standby consumption and EMI robustness.
For engineers reviewing the TPS61378QWRTERQ1 datasheet, TPS61378QWRTERQ1 pinout, TPS61378QWRTERQ1 application, or TPS61378QWRTERQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade protection features (OVP, hiccup SCP, thermal shutdown), and real-world selection guidance against comparable TI boost converters.
Technical Context
The TPS61378QWRTERQ1 implements fixed-frequency peak current mode control with dynamically programmable switching frequency (200 kHz–2.2 MHz) and spread-spectrum modulation in forced PWM mode to suppress AM-band EMI. It supports VIN-to-VOUT ratios up to 6:1 while maintaining stable regulation via external loop compensation at the COMP pin.
Its dual-mode operation-auto PFM for light-load efficiency and forced PWM for noise immunity-is selected via the MODE/SYNC pin. True load disconnect is achieved through dedicated VO and OUT pins, enabling isolation during shutdown or fault, with 0.5 µA shutdown current into VIN and integrated power-good (PG) signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 14 V - supports wide automotive battery transients including cold-crank (≥2.3 V) and load-dump (≤14 V) |
| Output Voltage Range | 4.0 V to 18.5 V - programmable via FB resistor divider; fixed options: 5 V / 5.25 V / 5.5 V |
| Quiescent Current | 25 µA into VIN - enables >1-year battery hold-up in always-on ADAS modules without compromising runtime |
| Peak Switch Current Limit | 1 A to 4.8 A - set by ILIM pin resistor; enables scalable output power from 3 W to >15 W at 9 V out |
| Switching Frequency Range | 200 kHz to 2.2 MHz - adjustable via FREQ pin resistor; allows optimization of size (high-freq) vs efficiency (low-freq) |
| Integrated FET RDS(on) | 50 mΩ HS / 50 mΩ LS / 100 mΩ ISO - eliminates external MOSFETs and reduces BOM count in space-constrained ECUs |
| Protection Features | OVP (20 V threshold), hiccup short-circuit, thermal shutdown (165 °C), UVLO (2.2 V), PG indicator - meets ASIL-B system-level safety requirements |
Pinout & Package
TPS61378QWRTERQ1 is housed in a wettable-flank 3 mm × 3 mm 16-pin WQFN (RTE) package, optimized for automated optical inspection (AOI) and high-reliability automotive reflow. Thermal pad must be soldered to GND plane for 8.8 °C/W junction-to-case (bottom) thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Main supply input (2.3–14 V); connects to battery or pre-regulator rail |
| BST | Bootstrap supply | Drives high-side gate; requires 0.1 µF ceramic cap to SW for proper bootstrapping |
| SW | Switch node | Internal low-side drain / high-side source connection; ties to inductor and BST cap |
| MODE/SYNC | Mode control / clock sync | Logic-high = forced PWM; logic-low/floating = auto PFM; accepts external sync clock |
| VCC | LDO output | 4.8 V internal regulator output; requires ≥1 µF ceramic decoupling to GND |
| GND | Power ground | Common return for low-side FET source and thermal pad; must be low-impedance plane |
| VO | Isolated output | Load-side output; provides true input-output disconnect during shutdown/fault |
| OUT | HS drain output | High-side FET drain; short to VO if load disconnect not required |
| PG | Power-good indicator | Open-drain output asserting when VOUT is within ±5% of target; enables sequencing control |
| ILIM | Current limit set | Resistor-to-GND sets peak switch current (1–4.8 A); critical for overcurrent margin design |
| FB | Voltage feedback | Senses output via resistor divider; reference voltage = 0.800 V ±12 mV over temp |
| COMP | Error amplifier output | External RC network here optimizes loop stability across wide VOUT/VIN ratios |
| EN | Enable input | Active-high logic enable (VIH = 1.2 V); includes 800 kΩ internal pull-down |
| FREQ | Frequency set | Resistor-to-GND programs switching frequency (200 kHz–2.2 MHz); no floating allowed |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation-enables use in engine bay, head unit, and radar ECU environments |
| True load disconnect | Dedicated VO and OUT pins enable complete input-output isolation during shutdown, reducing system leakage to <5 µA |
| Spread-spectrum FPWM | ±10% frequency dithering at 0.4% of fSW-reduces peak EMI by >10 dB in 500 kHz–2 MHz band for CISPR 25 Class 5 compliance |
| Programmable peak current limit | Configurable 1 A–4.8 A via single ILIM resistor-supports scalable output power without changing layout or magnetics |
| Auto PFM / forced PWM dual mode | MODE/SYNC pin selects between highest light-load efficiency (PFM) or lowest noise/EMI (FPWM)-no external logic needed |
| Integrated protection suite | Includes OVP (20 V), hiccup SCP, thermal shutdown (165 °C), UVLO (2.2 V), and PG flag-reduces need for external supervision ICs |
Applications
| Advanced Driver-Assistance Systems (ADAS) | Automotive Infotainment & Cluster |
|---|---|
Use Scenario: Powering 5-V or 9-V camera sensor rails in forward-facing ADAS cameras with always-on wake-up capability. IC Role / Device Role / Timing Role: Synchronous boost converter providing regulated, isolated output with ultra-low quiescent current and fast PG assertion. Use Value: Enables >1-year battery hold-up during vehicle sleep while delivering clean, stable power for image sensors during wake events. |
Use Scenario: Generating 5.25-V supply for LCD backlight drivers and audio amplifiers in digital instrument clusters. IC Role / Device Role / Timing Role: High-efficiency boost stage with programmable output and load disconnect to prevent backfeed during ignition-off. Use Value: Eliminates need for discrete load switches and improves system-level power sequencing reliability under battery voltage transients. |
| Body Electronics & Lighting | Emergency Call (eCall) Module |
Use Scenario: Supplying 12-V rail for LED matrix headlamps controlled by CAN FD, where EMI must avoid interfering with radio reception. IC Role / Device Role / Timing Role: Spread-spectrum FPWM boost converter with synchronized clock input to align switching edges with system timing. Use Value: Reduces conducted and radiated emissions in AM/FM bands without adding shielding or ferrites-cutting BOM cost and board area. |
Use Scenario: Providing 9-V backup power for GSM modem and GPS receiver in eCall telematics units during main battery failure. IC Role / Device Role / Timing Role: Automotive-grade boost with true load disconnect and hiccup SCP to maintain modem operation during short-circuit faults. Use Value: Ensures uninterrupted emergency call initiation even under sustained output shorts or thermal stress-meeting UNECE R151 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS613781QWRTERQ1 | Fixed 5.7 V / 6.2 V / 7 V / 8 V outputs; same package, pinout, and spread-spectrum FPWM | Targeted at higher-voltage infotainment supplies where adjustable output is unnecessary | Select when fixed 5.7–8 V output simplifies design and eliminates FB resistor tuning |
| TPS613783QWRTERQ1 | Same 5 V / 5.25 V / 5.5 V / adjustable outputs but disables spread-spectrum modulation | Used where EMI filtering is handled externally or AM-band sensitivity is lower | Select when spread-spectrum is not required and cost reduction via simplified validation is prioritized |
Compared with TPS61378QWRTERQ1, TPS613781QWRTERQ1 offers higher fixed output voltages without sacrificing automotive qualification or EMI performance, while TPS613783QWRTERQ1 trades spread-spectrum for reduced test complexity-both retain identical thermal, protection, and layout compatibility.
Availability
TPS61378QWRTERQ1 is available at Aetrix Electronics and suitable for advanced driver-assistance systems (ADAS), automotive infotainment and cluster, and emergency call (eCall) modules requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant traceability.
Supply support for TPS61378QWRTERQ1 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 automotive-grade power management ICs, with decades of automotive qualification expertise and functional safety documentation support.
The TPS61378-Q1 product line delivers high-efficiency, low-quiescent-current boost converters with integrated load disconnect and EMI-optimized control-designed specifically for next-generation automotive subsystems demanding ASIL-B readiness and compact power solutions.
FAQ
What is the maximum output voltage supported by the TPS61378QWRTERQ1?
The TPS61378QWRTERQ1 supports a maximum output voltage of 18.5 V, programmable via the FB pin resistor divider. Fixed output versions (5 V, 5.25 V, 5.5 V) are also available. This range accommodates common automotive loads such as radar MMICs, camera ISPs, and LED drivers requiring up to 18 V rails.
Does the TPS61378QWRTERQ1 provide true input-to-output isolation during shutdown?
Yes-the TPS61378QWRTERQ1 integrates a dedicated isolation FET with separate VO and OUT pins. When disabled via EN or during fault, it achieves true load disconnect with <5 µA reverse leakage into VO, preventing backfeed and enabling safe power sequencing in multi-rail automotive systems.
How is switching frequency programmed on the TPS61378QWRTERQ1?
Switching frequency is set using a resistor from the FREQ pin to GND, supporting 200 kHz to 2.2 MHz. For example, a 18-kΩ resistor yields ~2.2 MHz. The device also accepts external synchronization on the MODE/SYNC pin, and spread-spectrum modulation is active only in free-running FPWM mode-not during sync or PFM.
What protection features are integrated into the TPS61378QWRTERQ1?
The TPS61378QWRTERQ1 includes output overvoltage protection (20 V threshold), hiccup-mode short-circuit protection, thermal shutdown (165 °C), input undervoltage lockout (2.2 V), and power-good (PG) signaling. All protections are fully integrated-no external components required for basic fault coverage.
Is the TPS61378QWRTERQ1 qualified for automotive applications?
Yes-TPS61378QWRTERQ1 is AEC-Q100 Grade 1 qualified, rated for –40°C to +125°C ambient operation, and includes functional safety documentation to aid ISO 26262 ASIL-B system design. Its wettable-flank WQFN package supports automated optical inspection for high-reliability automotive manufacturing.
TPS61378QWRTERQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 14V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- 18.5V
- Current - Output:
- -
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS61378QWRTERQ1 FAQ
1.How can I place an order for TPS61378QWRTERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61378QWRTERQ1 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 TPS61378QWRTERQ1 reliable?
The price and inventory of TPS61378QWRTERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61378QWRTERQ1 is usually 5 days.
3.What payment methods are accepted for TPS61378QWRTERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61378QWRTERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61378QWRTERQ1?
TPS61378QWRTERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61378QWRTERQ1 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 TPS61378QWRTERQ1?
For technical support, including TPS61378QWRTERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61378QWRTERQ1 requirements.
6.How does Aetrix verify that TPS61378QWRTERQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61378QWRTERQ1 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 TPS61378QWRTERQ1 meets industry standards.
7.What is the process for return or replacement of TPS61378QWRTERQ1?
All TPS61378QWRTERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61378QWRTERQ1, 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 TPS61378QWRTERQ1 part is unused and in its original packaging.
Return procedure for TPS61378QWRTERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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