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Texas Instruments TPS61379QWRTERQ1
- Part No.:
- TPS61379QWRTERQ1
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS61379QWRTERQ1.pdf
- Description:
- IC REG BOOST ADJ 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,912
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Product details
Overview
TPS61379QWRTERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous boost converter with integrated load disconnect, 25-µA quiescent current, 2-A peak switch current limit, and programmable 200 kHz–2.2 MHz switching frequency. It operates from 2.3 V to 14 V input and delivers up to 18.5 V output, targeting power rail generation in ADAS camera modules.
For engineers reviewing the TPS61379QWRTERQ1 datasheet, TPS61379QWRTERQ1 pinout, TPS61379QWRTERQ1 application, or TPS61379QWRTERQ1 equivalent, this page provides verified functional context, validated pin roles, confirmed automotive-grade protection features (OVP, hiccup SCP, thermal shutdown), and real-world design implications of its spread-spectrum modulation and true load disconnect capability.
Technical Context
The TPS61379QWRTERQ1 implements fixed-frequency peak-current-mode control with internal oscillator and cycle-by-cycle current limiting. Its dual-mode operation-forced PWM (constant frequency, EMI-optimized via ±10% spread spectrum) and auto PFM (variable frequency, high light-load efficiency)-is selected via the MODE/SYNC pin.
It integrates three N-channel MOSFETs: low-side (50 mΩ), high-side (50 mΩ), and isolation FET (100 mΩ), enabling true input-to-output disconnect during shutdown. The device supports external loop compensation via COMP pin and includes a 0.8-V reference with ±12 mV tolerance over –40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3 V to 14 V - supports direct connection to automotive battery (cold-crank down to 2.3 V) without pre-regulation |
| Output Voltage Range | 4.0 V to 18.5 V - configurable via FB resistor divider; fixed 5 V/5.25 V/5.5 V options reduce BOM count |
| Quiescent Current | 25 µA into VIN - enables always-on systems (e.g., eCall backup power) with minimal battery drain |
| Switching Frequency | 200 kHz to 2.2 MHz - adjustable via FREQ pin resistor; avoids AM band (530–1710 kHz) and enables compact L-C sizing |
| Peak Switch Current Limit | 2 A typical - sets maximum deliverable output power at given VIN/VOUT ratio; limits stress on internal FETs |
| Load Disconnect | True isolation between VIN and VO during shutdown - eliminates standby leakage paths and enables safe hot-swap |
| OVP Threshold | 20 V typical - protects downstream 18-V-rated loads (e.g., image sensors, SerDes) from overvoltage fault propagation |
Pinout & Package
TPS61379QWRTERQ1 is housed in a wettable-flank 3.0-mm × 3.0-mm 16-pin VQFN (RTE) package, optimized for automated optical inspection (AOI) and thermal performance (RθJC(bot) = 8.8°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Main supply input (2.3–14 V); connects to battery or intermediate rail; UVLO threshold 2.2 V (rising) |
| BST | Bootstrap supply | Provides gate drive voltage for high-side FET; requires ≥0.1 µF ceramic capacitor to SW |
| SW | Switching node | Drain of LS FET / source of HS FET; connects to inductor; handles full switching current and voltage swing |
| MODE/SYNC | Mode control & clock sync | Logic-high = forced PWM; floating/low = auto PFM; accepts external clock (200–2200 kHz) for system synchronization |
| VCC | Internal LDO output | 4.8 V regulated supply for bias circuitry; requires ≥1 µF ceramic capacitor to GND |
| GND | Power ground | Common return for LS FET source, thermal pad, and signal references; must be low-impedance plane |
| VO | Isolated output | Output of isolation FET; connects directly to load for true input-output disconnect during shutdown/fault |
| OUT | HS FET drain output | Bypasses isolation FET; used when load disconnect is not required; shorting to VO disables isolation |
| PG | Power good indicator | Open-drain output; asserts high after 3.4 ms when VOUT reaches 90% of target; enables sequenced power-up |
| FB | Feedback input | Senses output voltage via resistor divider; 0.8-V reference enables precise regulation across temperature |
| COMP | Error amplifier output | Connects to external RC network for loop compensation; adjusts stability and transient response at wide VOUT/VIN ratios |
| EN | Enable input | Active-high logic; 1.2 V threshold; 400-µs enable delay followed by 2.5-ms soft-start prevents inrush current |
| FREQ | Frequency setting | Resistor-to-GND sets switching frequency (200 kHz–2.2 MHz); cannot float or tie to VCC |
| NC | No connect | Internally unconnected; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive cabin and engine bay thermal requirements |
| Spread-spectrum modulation | ±10% frequency dithering at 0.4% of fSW - reduces peak EMI emissions by >10 dB in FPWM mode for CISPR 25 Class 5 compliance |
| True load disconnect | Isolation FET (100 mΩ) breaks VIN–VO path during shutdown - eliminates standby current paths and enables fail-safe power sequencing |
| Hiccup-mode short-circuit protection | 1.8-ms current-limited on-time followed by 67-ms off-time - limits average power dissipation during sustained output shorts |
| Auto PFM / forced PWM selection | Configurable via single MODE/SYNC pin - balances efficiency (PFM) and noise immunity (FPWM) without changing external components |
Applications
| ADAS Camera Power Supply | Automotive Infotainment Display Backlight |
|---|---|
|
Use Scenario: Powers 12-V or 18-V image sensor and ISP in forward-facing ADAS camera module operating from 12-V vehicle battery with cold-crank dips to 2.3 V. IC Role / Device Role / Timing Role: Synchronous boost converter with load disconnect - generates stable 12-V rail while isolating sensor from battery faults and enabling controlled power-down. Use Value: 25-µA quiescent current extends battery life in parked surveillance mode; 2-A peak current supports burst-mode sensor operation; spread spectrum meets strict EMI limits near radar receivers. |
Use Scenario: Supplies 18-V backlight driver IC for TFT LCD cluster display, powered from 5-V or 12-V domain with variable load current (10 mA–500 mA). IC Role / Device Role / Timing Role: Adjustable-output boost regulator - delivers regulated 18-V output with tight line/load regulation and fast transient response to PWM dimming steps. Use Value: Programmable 200 kHz–2.2 MHz switching avoids AM radio interference; true load disconnect prevents backlight glow during ignition-off; PG signal synchronizes display enable timing. |
| eCall System Backup Power | Body Control Module LED Driver Supply |
|
Use Scenario: Provides isolated 5-V standby rail for GSM modem and MCU in emergency call (eCall) telematics unit, maintaining operation during main battery disconnection. IC Role / Device Role / Timing Role: Always-on boost converter with shutdown isolation - maintains regulated output from supercapacitor or backup battery while blocking reverse current. Use Value: 0.5-µA shutdown current preserves backup energy for >72 hours; true VO–VIN disconnect ensures no leakage path; OVP protects modem IC during capacitor charging transients. |
Use Scenario: Generates 9-V supply for high-brightness LED drivers in interior lighting or ambient lighting modules, operating from 12-V vehicle bus with frequent load switching. IC Role / Device Role / Timing Role: High-efficiency boost converter with hiccup protection - delivers stable voltage despite LED string on/off transients and withstands short-circuited LED faults. Use Value: Hiccup-mode SCP limits thermal stress during LED wire short; 90%+ efficiency at 0.25-A load minimizes heat in sealed enclosures; thermal shutdown at 165°C prevents field failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61378QRTERQ1 | Same package and pinout; lower 1.5-A peak current limit; no isolation FET; 30-µA IQ | Lacks true load disconnect and OVP; suitable only for non-safety-critical, non-isolated boost rails | Select only if isolation, OVP, and <25-µA IQ are unnecessary - reduces cost but sacrifices automotive fault resilience |
| LM61480QRTWRQ1 | 3.5-V to 36-V input; 8-A peak current; requires external FETs; no integrated isolation or spread spectrum | Higher-power buck-boost topology; no built-in load disconnect; broader VIN but larger solution size | Choose for >2-A output needs or wider input range; requires additional components and layout effort for isolation and EMI control |
Compared with TPS61379QWRTERQ1, TPS61378QRTERQ1 omits critical automotive protections and load isolation, while LM61480QRTWRQ1 trades integration for scalability - making TPS61379QWRTERQ1 the optimal choice for space-constrained, safety-aware 2-A boost applications requiring zero-standby-leakage and EMI-hardened operation.
Availability
TPS61379QWRTERQ1 is available at Aetrix Electronics and suitable for advanced driver-assistance systems (ADAS), automotive infotainment displays, and emergency call (eCall) modules requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for TPS61379QWRTERQ1 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 deep expertise in automotive-grade power management ICs and functional safety design.
The TPS61379-Q1 product line delivers highly integrated, AEC-Q100-qualified boost converters for automotive subsystems demanding ultra-low quiescent current, robust fault protection, and EMI-compliant operation in space-constrained environments.
FAQ
What is the minimum input voltage supported by the TPS61379QWRTERQ1?
The TPS61379QWRTERQ1 supports a minimum input voltage of 2.3 V, with an undervoltage lockout (UVLO) threshold of 2.2 V (rising). This allows reliable operation during automotive cold-crank events where battery voltage can dip below 6 V. Below 2.3 V, the device ceases switching and enters UVLO shutdown, protecting downstream circuitry. The TPS61379QWRTERQ1 resumes operation only after VIN exceeds 2.2 V with 160-mV hysteresis.
Does the TPS61379QWRTERQ1 provide true input-to-output isolation during shutdown?
Yes, the TPS61379QWRTERQ1 integrates a dedicated isolation FET (100 mΩ RDS(on)) connected to the VO pin. When the device is disabled via EN or enters fault shutdown, this FET turns off completely, breaking the conductive path between VIN and VO. This true load disconnect eliminates standby leakage current - critical for always-on automotive systems like eCall - and prevents backfeed from output capacitors into the input rail.
How is the switching frequency programmed on the TPS61379QWRTERQ1?
The TPS61379QWRTERQ1 uses a resistor from the FREQ pin to GND to set switching frequency between 200 kHz and 2.2 MHz. For example, a 18-kΩ resistor yields ~2.2 MHz, while a 218-kΩ resistor sets ~200 kHz. The FREQ pin must never be left floating or tied to VCC. Frequency programming is independent of MODE/SYNC configuration and remains active in both auto PFM and forced PWM modes, though spread spectrum is disabled in PFM.
What protection features does the TPS61379QWRTERQ1 include?
The TPS61379QWRTERQ1 includes input UVLO (2.2 V rising), output overvoltage protection (20 V threshold), hiccup-mode short-circuit protection (1.8-ms on / 67-ms off), thermal shutdown (165°C trip), and power-good monitoring. All protections are fully integrated - no external components required. The hiccup mode limits average power dissipation during sustained shorts, while the PG signal provides system-level sequencing feedback. These features are validated per AEC-Q100 Grade 1 requirements.
Can the TPS61379QWRTERQ1 synchronize to an external clock?
Yes, the TPS61379QWRTERQ1 accepts an external clock signal on the MODE/SYNC pin to synchronize switching frequency across multiple converters. The acceptable input clock range is 200 kHz to 2200 kHz. When synchronized, the device operates in forced PWM mode and disables spread-spectrum modulation. This capability enables deterministic EMI reduction in multi-rail automotive systems and eliminates beat frequencies between adjacent power supplies.
TPS61379QWRTERQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- 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):
- 4V
- Voltage - Output (Max):
- 18.5V
- Current - Output:
- -
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS61379QWRTERQ1 FAQ
1.How can I place an order for TPS61379QWRTERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61379QWRTERQ1 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 TPS61379QWRTERQ1 reliable?
The price and inventory of TPS61379QWRTERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61379QWRTERQ1 is usually 5 days.
3.What payment methods are accepted for TPS61379QWRTERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61379QWRTERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61379QWRTERQ1?
TPS61379QWRTERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61379QWRTERQ1 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 TPS61379QWRTERQ1?
For technical support, including TPS61379QWRTERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61379QWRTERQ1 requirements.
6.How does Aetrix verify that TPS61379QWRTERQ1 is sourced from the original manufacturer or authorized distributors?
All TPS61379QWRTERQ1 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 TPS61379QWRTERQ1 meets industry standards.
7.What is the process for return or replacement of TPS61379QWRTERQ1?
All TPS61379QWRTERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61379QWRTERQ1, 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 TPS61379QWRTERQ1 part is unused and in its original packaging.
Return procedure for TPS61379QWRTERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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