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Texas Instruments TPS63020QDSJRQ1
- Part No.:
- TPS63020QDSJRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 14-VFDFN Exposed Pad
- Datasheet:
-
TPS63020QDSJRQ1.pdf
- Description:
- IC REG BUCK BST ADJ 3.5A 14VSON
- Quantity:
- Payment:
- Shipping:
Inventory:6,729
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Product details
Overview
TPS63020QDSJRQ1 from Texas Instruments is an automotive-grade synchronous buck-boost DC/DC converter IC with 4-A internal switches, 1.2 V to 5.5 V adjustable output, 96% peak efficiency, and integrated power good (PG) output. It operates across 1.8 V–5.5 V input, supports automatic buck/boost mode transition, and delivers up to 3 A at 3.3 V in step-down mode for battery-powered infotainment systems.
For engineers reviewing the TPS63020QDSJRQ1 datasheet, TPS63020QDSJRQ1 pinout, TPS63020QDSJRQ1 application, or TPS63020QDSJRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to 125°C), dynamic current limiting, 2.4 MHz fixed-frequency operation with synchronization capability, and dual-ground architecture (GND/PGND) for high-current stability.
Technical Context
The TPS63020QDSJRQ1 implements an average current-mode control architecture with input/output voltage feedforward for fast transient response. Its 4-switch topology enables seamless buck-to-boost transition without classical buck-boost overlap, minimizing RMS current and conduction losses when VIN ≈ VOUT.
It integrates dual ground domains (control GND and power PGND), undervoltage lockout (1.5 V threshold), overtemperature protection (140°C trip), and open-drain power good monitoring referenced to FB feedback. The PS/SYNC pin controls power save mode entry (<100 mA avg. inductor current) or external clock synchronization via PLL.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-ion (2.5–4.2 V), two/three-cell alkaline/NiMH, and wide industrial supply rails. |
| Output Voltage Range | 1.2 V to 5.5 V - programmable via external resistor divider; enables flexible rail generation for SoCs, displays, and sensors. |
| Max Output Current | 3 A at 3.3 V in buck mode (VIN > 3.6 V) - sufficient for USB PD sink, display bias, or MCU core rails. |
| Peak Efficiency | 96% - achieved using synchronous rectification and low RDS(on) (50 mΩ high/low side) MOSFETs. |
| Switching Frequency | 2.4 MHz typical (2.2–2.6 MHz range) - enables compact 1–1.5 µH inductors and reduces EMI filtering burden. |
| Quiescent Current | <50 µA - extends battery runtime in always-on automotive modules like telematics eCall standby. |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C TJ) - qualified for under-hood and dashboard-mounted automotive electronics. |
Pinout & Package
TPS63020QDSJRQ1 is housed in a thermally enhanced 3 mm × 4 mm, 14-pin VSON (DSJ) package with exposed thermal pad connected to PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINA | Control-stage supply | Provides regulated bias for internal logic; decoupled separately from power-stage VIN to reduce noise coupling. |
| EN | Enable input | Active-high digital enable; must not float - ties to system microcontroller GPIO for controlled power sequencing. |
| PS/SYNC | Power save/sync control | Low = power save mode; high = forced PWM; external clock input enables system-level timing synchronization. |
| FB | Feedback input | Monitors output via resistive divider; internal 500 mV reference sets VOUT = 500 mV × (1 + R1/R2). |
| PG | Power good output | Open-drain status signal indicating regulated VOUT; requires external pull-up to host logic rail (e.g., 3.3 V). |
| L1, L2 | Inductor connections | Dual inductor terminals support 4-switch topology; L1/L2 pins are paired (pins 8–9 and 6–7) for low-impedance current paths. |
| VIN, VOUT | Power input/output | VIN (pins 10–11) supplies power stage; VOUT (pins 4–5) delivers regulated output - both use multiple pins for current sharing and thermal relief. |
| GND / PGND | Ground references | GND = control logic reference; PGND = power switch return - must be joined at single point near GND pin to avoid ground shift. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic buck-boost mode transition | Seamlessly shifts between step-down and boost operation as VIN crosses VOUT - eliminates need for external mode control logic. |
| Dynamic current limiting | Reduces average switch current limit below 4 A when VIN drops <2.3 V or die temperature exceeds 140°C - protects weak batteries and prevents thermal runaway. |
| Smart Power Good (PG) | Monitors control loop integrity in real time - asserts low before output deviation exceeds ±3.5%, enabling early fault detection and safe system shutdown. |
| Load disconnect during shutdown | Internally isolates VOUT from VIN when EN = low - prevents battery drain and backfeed into powered-down subsystems. |
| Buck-Boost Overlap Control™ | Adjusts PWM ramps to minimize classical buck-boost switching cycles - maintains high efficiency (>90%) even at VIN/VOUT crossover region. |
Applications
| Infotainment Head Unit Power | Telematics eCall Module |
|---|---|
Use Scenario: Powers 3.3 V SoC, display interface, and audio codec in automotive head units supplied by 12 V battery via intermediate 5 V rail or direct 12 V–3.3 V conversion. IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 3.3 V from variable input (5–14 V); handles cold-crank dips to 5 V and load dump surges to 16 V via dynamic current limit. Use Value: Maintains regulation during engine start (VIN transient down to 5 V) and avoids brownout resets using 96% efficiency and 50 µA quiescent current in standby. | Use Scenario: Supplies 3.3 V to GPS receiver, cellular modem, and emergency call processor in vehicle telematics units operating from 12 V battery with backup supercapacitor. IC Role / Device Role / Timing Role: Dual-role regulator: steps down 12 V to 3.3 V during normal operation; boosts supercapacitor voltage (1.8–2.7 V) to 3.3 V during battery loss to sustain eCall transmission. Use Value: Enables >30 s emergency call duration after main battery disconnect using automatic mode transition and 2 A boost capability at 2.5 V input. |
| ADAS Camera Power Supply | Automotive Instrument Cluster |
Use Scenario: Generates 1.8 V and 2.8 V rails for CMOS image sensor and ISP in rear-view or surround-view cameras mounted in exterior housings. IC Role / Device Role / Timing Role: Adjustable-output buck-boost supplying precise low-noise rails; uses FB feedback and soft-start to prevent sensor reset during power-up. Use Value: Delivers clean 1.8 V @ 1.2 A with <±1% load regulation and dynamic voltage positioning - suppresses image noise during LED flash or motor actuation transients. | Use Scenario: Powers microcontroller, TFT LCD backlight driver, and CAN transceiver in digital instrument clusters where input varies from 9 V (cold crank) to 16 V (load dump). IC Role / Device Role / Timing Role: Main 5 V rail generator with PG monitoring; coordinates with cluster MCU to disable non-critical functions during low-VIN events. Use Value: Provides fail-safe 5 V output with power good assertion and overvoltage protection (7 V clamp) - prevents display corruption and CAN bus errors during electrical disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS630250RVER | Non-automotive grade (commercial temp), identical pinout and electrical specs except AEC-Q100 and UVLO thresholds. | Lacks automotive qualification and tighter UVLO hysteresis - unsuitable for safety-critical or under-hood deployment. | Select only for cost-sensitive non-automotive designs requiring same performance without qualification overhead. |
| MAX20419ATGB/V+T | 3.5 A max output, 2.2 MHz switching, integrated FETs but no PG output; different pinout and feedback reference (600 mV). | Requires PCB redesign; lacks power good signaling critical for automotive diagnostics and fail-safe sequencing. | Consider only if higher current or smaller solution size is prioritized over diagnostic capability and drop-in replacement. |
Compared with TPS63020QDSJRQ1, TPS630250RVER offers identical functionality without automotive qualification, while MAX20419ATGB/V+T trades PG functionality and pin compatibility for higher current and slightly lower frequency - making TPS63020QDSJRQ1 the optimal choice for AEC-Q100-compliant systems requiring robust fault reporting and layout reuse.
Availability
TPS63020QDSJRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, telematics eCall, and ADAS camera power supply applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.
Supply support for TPS63020QDSJRQ1 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 ICs, with decades of expertise in power management innovation.
The TPS63020-Q1 belongs to TI's automotive-qualified buck-boost converter family, designed specifically for reliable, high-efficiency power conversion in harsh-temperature automotive environments where input voltage fluctuates widely.
FAQ
What is the maximum continuous output current supported by the TPS63020QDSJRQ1 in boost mode?
The TPS63020QDSJRQ1 supports more than 2 A output current at 3.3 V in boost mode when VIN > 2.5 V. This is confirmed in the official datasheet (SLVSD52A, Section 1), where it specifies "More than 2 A Output Current at 3.3 V in Boost Mode (VIN > 2.5 V)" - validated under TJ = –40°C to 125°C with proper thermal design and 1.5 µH inductors.
Does the TPS63020QDSJRQ1 require external compensation components?
No, the TPS63020QDSJRQ1 features internal loop compensation optimized for standard 1 µH to 1.5 µH inductors and ceramic output capacitors. As stated in Section 10.2.2, "The TPS63020-Q1 series of buck-boost converter has internal loop compensation," eliminating the need for external compensation networks and simplifying layout for automotive applications.
How does the power good (PG) output of the TPS63020QDSJRQ1 behave during startup and fault conditions?
The TPS63020QDSJRQ1 PG output is an open-drain signal that goes high-impedance when VOUT reaches regulation (within ±3.5% of target) and remains asserted until control loop instability is detected. Per Section 9.3.2.2, PG pulls low if average inductor current falls below demand - providing earliest possible indication of output collapse, including during soft-start ramp or short-circuit events.
Can the TPS63020QDSJRQ1 operate with a single 1.5 µH inductor instead of two separate inductors?
Yes - the TPS63020QDSJRQ1 supports single-inductor configurations using a coupled inductor or standard shielded power inductor. Section 10.2.1 confirms "L1 1.5 µH" in the typical application schematic, and TI's reference design TPS63020EVM-693 uses one 1.5 µH XFL4020 inductor. Dual inductor layouts are optional for EMI reduction but not required for basic operation.
What thermal management provisions are built into the TPS63020QDSJRQ1 package?
The TPS63020QDSJRQ1 uses a 3 mm × 4 mm VSON-14 (DSJ) package with an exposed thermal pad connected to PGND, achieving RθJA = 41.8°C/W and RθJC(bot) = 3.6°C/W. Integrated overtemperature protection shuts down the device at 140°C with 20°C hysteresis, and thermal metrics are fully characterized per JEDEC JESD51 standards - ensuring reliability in automotive under-hood environments.
TPS63020QDSJRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3.5A (Switch)
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-VSON (4x3)
TPS63020QDSJRQ1 FAQ
1.How can I place an order for TPS63020QDSJRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63020QDSJRQ1 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 TPS63020QDSJRQ1 reliable?
The price and inventory of TPS63020QDSJRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63020QDSJRQ1 is usually 5 days.
3.What payment methods are accepted for TPS63020QDSJRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63020QDSJRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63020QDSJRQ1?
TPS63020QDSJRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63020QDSJRQ1 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 TPS63020QDSJRQ1?
For technical support, including TPS63020QDSJRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63020QDSJRQ1 requirements.
6.How does Aetrix verify that TPS63020QDSJRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS63020QDSJRQ1 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 TPS63020QDSJRQ1 meets industry standards.
7.What is the process for return or replacement of TPS63020QDSJRQ1?
All TPS63020QDSJRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS63020QDSJRQ1, 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 TPS63020QDSJRQ1 part is unused and in its original packaging.
Return procedure for TPS63020QDSJRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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