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Texas Instruments TPS552892QWRYQRQ1
- Part No.:
- TPS552892QWRYQRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 21-PowerVFQFN
- Datasheet:
-
TPS552892QWRYQRQ1.pdf
- Description:
- IC REG BUCK BOOST ADJ 8A 21VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,447
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Product details
Overview
TPS552892QWRYQRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous buck-boost DC/DC converter integrating four MOSFETs, supporting 3.0 V–36 V input and 0.8 V–22 V programmable output, ±1% reference accuracy, 8 A average inductor current limit, and operation from –40°C to +125°C ambient. It delivers up to 60 W from 12-V input in boost mode and enables compact power rails for ADAS camera modules.
For engineers reviewing the TPS552892QWRYQRQ1 datasheet, TPS552892QWRYQRQ1 pinout, TPS552892QWRYQRQ1 application, or TPS552892QWRYQRQ1 equivalent, key selection considerations include input/output voltage overlap handling, average-current-mode control stability across buck/boost transitions, cable droop compensation via CDC pin, and AEC-Q100 thermal robustness in high-temperature under-hood environments.
Technical Context
The TPS552892QWRYQRQ1 employs average current-mode control with internal error amplifier (190 µA/V transconductance), enabling stable regulation during seamless transitions among buck, buck-boost, and boost modes based on VIN–VOUT relationship. Its programmable switching frequency (200 kHz–2.2 MHz) supports EMI-sensitive automotive layouts and allows synchronization to external clocks via DITH/SYNC pin.
It integrates dual high-side/low-side MOSFETs per stage (buck and boost), with RDS(on) values of 14 mΩ/22 mΩ (buck HS/LS) and 11 mΩ/11 mΩ (boost HS/LS) at VCC = 5.2 V, and features hiccup-mode short-circuit protection (76-ms off time), thermal shutdown at 175°C, and ±5% accurate output current monitoring via ISP/ISN differential sense.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0 V to 36 V - supports full automotive battery range including cold-crank (4.5 V) and load-dump (36 V) transients. |
| Output Voltage Range | 0.8 V to 22 V - programmable via FB resistor divider; ±1% reference voltage (1.2 V) ensures tight regulation across temperature. |
| Max Output Current | 8 A average inductor current limit - enables 45–60 W power delivery depending on input voltage and topology mode. |
| Switching Frequency | 200 kHz to 2.2 MHz - set by external resistor on FSW pin; supports high-frequency layout for small magnetics and EMI reduction. |
| Operating Temp Range | –40°C to +125°C ambient - AEC-Q100 Grade 1 qualification ensures reliability in engine bay and ADAS ECU environments. |
| Package Thermal Resistance | RθJA = 43.4°C/W (standard PCB) - 3.0 mm × 5.0 mm VQFN-HR package enables high-power density with efficient heat spreading. |
| Protection Features | OVP (22.5–24.5 V), hiccup-mode short-circuit, thermal shutdown (175°C), cycle-by-cycle peak current limit - ensures safe operation under fault conditions without external circuitry. |
Pinout & Package
TPS552892QWRYQRQ1 uses a 21-pin VQFN-HR (HotRod™) package, 3.0 mm × 5.0 mm body size, with exposed thermal pad for enhanced thermal performance. Pin numbering follows standard top-view orientation (pin 1 at top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Enable & programmable UVLO input | Logic-high enable (>1.15 V); UVLO threshold (1.23 V) with hysteresis enables custom input undervoltage cutoff using resistor divider. |
| MODE | Light-load operation mode select | High = forced PWM; low = auto PFM - determines efficiency vs. noise trade-off at light loads. |
| PG | Power good open-drain output | Asserts high-Z when VOUT ≥ 95% of setpoint; pulls low when VOUT ≤ 90% - provides system-level rail monitoring. |
| ISP / ISN | Differential current sense inputs | Monitor output current via external sense resistor; trigger CC pin and activate constant-current regulation at 48–52 mV drop. |
| CDC | Cable droop compensation output | Sinks current proportional to sensed current; used with RC network to boost FB voltage and compensate IR drop in long cables. |
| FSW | Frequency setting input | Resistor-to-AGND sets switching frequency from 200 kHz to 2.2 MHz - enables EMI optimization and inductor size reduction. |
| DITH/SYNC | Dithering & clock sync input | Capacitor-to-GND enables ±7% spread spectrum; external clock signal synchronizes switching to system timing source. |
| VIN / VOUT / PGND / AGND | Power and ground terminals | VIN accepts 3–36 V; VOUT delivers regulated output; PGND handles high-current return paths; AGND isolates analog sensing. |
| SW1 / SW2 / BOOT1 / BOOT2 | Switching node & gate drive supplies | SW1/SW2 are buck/boost switching nodes; BOOT1/BOOT2 supply high-side gate drivers with 0.1 µF bootstrap capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Average current-mode control | Enables stable loop compensation and fast transient response during dynamic VIN–VOUT transitions (e.g., start-stop battery dips). |
| Programmable cable droop compensation | CDC pin outputs voltage proportional to output current, allowing active FB adjustment to maintain regulation at remote loads. |
| Integrated quad-MOSFET buck-boost topology | Eliminates external power switches and reduces BOM count; supports seamless buck/boost/buck-boost mode transitions. |
| Automotive-grade protection suite | Includes OVP, hiccup-mode short-circuit (76-ms off time), thermal shutdown (175°C), and ±5% current monitoring - meets ASIL-B readiness requirements. |
| EMI mitigation options | Spread-spectrum dithering (±7%) and external clock synchronization reduce peak radiated emissions in safety-critical zones. |
Applications
| ADAS Camera Power Supply | Automotive Infotainment Display Rail |
|---|---|
|
Use Scenario: Powers 5–12 V image sensor and ISP in forward-facing ADAS camera module with wide input variation due to vehicle battery transients. IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering stable 5 V or 12 V from 6–16 V nominal battery, dynamically shifting between buck and boost as VIN crosses VOUT. Use Value: Maintains uninterrupted imaging during cold-crank (VIN < 6 V) and load-dump (VIN > 16 V) events without external supervision or sequencing logic. |
Use Scenario: Supplies 3.3 V or 5 V rail to LCD driver ICs and touch controller in central display unit subject to battery voltage fluctuations and EMI constraints. IC Role / Device Role / Timing Role: High-efficiency, low-noise power converter operating in FPWM mode to avoid audible noise while meeting CISPR-25 Class 5 emission limits. Use Value: Achieves >94% efficiency at 3 A load with 12-V input, reducing thermal load in sealed display enclosure and eliminating need for heatsinking. |
| Wireless Charging Transmitter Module | Automotive Telematics Control Unit (TCU) |
|
Use Scenario: Generates adjustable 5–20 V output for variable-frequency wireless power transmitter coil driver, requiring precise voltage control and current limiting. IC Role / Device Role / Timing Role: Programmable-output buck-boost regulator with ±5% current monitoring and hiccup-mode protection against coil short circuits or foreign object detection faults. Use Value: Enables real-time current-based FOD response via ISP/ISN interface and maintains output regulation despite large input ripple from rectified AC source. |
Use Scenario: Provides isolated 3.3 V and 5 V rails for cellular modem, GNSS receiver, and CAN transceiver in TCU mounted near engine compartment. IC Role / Device Role / Timing Role: AEC-Q100 qualified primary DC/DC converter handling –40°C to +125°C ambient, with thermal shutdown and robust ESD protection (±2 kV HBM). Use Value: Ensures continuous connectivity during extreme thermal cycling and eliminates field failures linked to voltage rail collapse during hot reboots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480-Q1 | Single-phase synchronous buck only (no boost capability); max 8 A, 3–36 V input, fixed 3.3/5/12 V outputs or adjustable via resistor. | Lacks bidirectional VIN–VOUT support; unsuitable where output must exceed input (e.g., USB PD emulation, wireless charging). | Select when topology is strictly step-down and cost sensitivity outweighs flexibility; requires separate boost stage for >VIN outputs. |
| MAX20406A | Automotive buck-boost with 3–36 V input, 0.8–20 V output, 6 A max, but uses peak-current-mode control and lacks CDC pin for cable compensation. | No integrated cable droop correction; requires external op-amp compensation network for remote sensing. | Choose for space-constrained designs needing smaller footprint (2.5 mm × 3.0 mm), accepting added design complexity for droop management. |
Compared with LM61480-Q1 and MAX20406A, the TPS552892QWRYQRQ1 uniquely combines quad-MOSFET architecture, CDC-based cable compensation, and seamless buck/boost/buck-boost transitions - making it optimal for automotive systems requiring single-chip solution across wide input-output differentials and remote load regulation.
Availability
TPS552892QWRYQRQ1 is available at Aetrix Electronics and suitable for advanced driver-assistance systems (ADAS), automotive infotainment displays, and telematics control units requiring stable component supply across extended temperature and automotive qualification requirements.
Supply support for TPS552892QWRYQRQ1 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 solutions with over 50 years of innovation in high-reliability electronics.
The TPS552892QWRYQRQ1 belongs to TI's AEC-Q100 qualified buck-boost converter family, designed specifically for automotive power rails where input voltage may fall below or rise above the required output - such as camera modules, display backlights, and wireless charging subsystems.
FAQ
What is the maximum output power capability of the TPS552892QWRYQRQ1?
The TPS552892QWRYQRQ1 delivers up to 60 W from a 12-V input in boost mode and 45 W from a 9-V input, enabled by its 8-A average inductor current limit and low RDS(on) MOSFETs (11–22 mΩ). Actual output power depends on input voltage, output voltage, ambient temperature, and PCB thermal design - with efficiency peaking at 96% under 12-VIN/20-VOUT/3-A conditions.
How does the TPS552892QWRYQRQ1 handle input voltage transitions across the output voltage level?
The TPS552892QWRYQRQ1 automatically transitions among buck, buck-boost, and boost modes using average current-mode control. When VIN > VOUT, it operates in buck mode; when VIN < VOUT, in boost mode; and when VIN ≈ VOUT, it alternates buck and boost cycles. This seamless transition avoids output disruption during automotive battery transients like cold-crank or load-dump events.
Can the TPS552892QWRYQRQ1 compensate for voltage drop across long PCB traces or cables?
Yes - the TPS552892QWRYQRQ1 includes a dedicated CDC pin that outputs a voltage proportional to output current. By connecting a resistor from CDC to FB, the feedback voltage is actively increased to offset IR drop, maintaining regulation at the remote load. The CDC output ranges from 40 mV to 1.05 V depending on sensed current and RC network configuration.
What protection features are integrated into the TPS552892QWRYQRQ1?
The TPS552892QWRYQRQ1 integrates output overvoltage protection (22.5–24.5 V trip), hiccup-mode short-circuit protection (76-ms off time), thermal shutdown (175°C), cycle-by-cycle peak current limit, and average inductor current limit (7–9 A typical). These features operate autonomously without external components, ensuring safe operation during faults in automotive environments.
Is the TPS552892QWRYQRQ1 pin-compatible with other members of the TPS55289x-Q1 family?
No - the TPS552892QWRYQRQ1 is a distinct variant with specific feature set and pinout. While sharing the same VQFN-HR 21-pin package with other family members like TPS552882-Q1, differences in internal functionality (e.g., CDC pin presence, current-sense architecture, and control loop parameters) preclude direct pin-for-pin replacement without validation of schematic and layout changes.
TPS552892QWRYQRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 21-PowerVFQFN
- 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):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 22V
- Current - Output:
- 8A
- 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:
- 21-VQFN-HR (3x5)
TPS552892QWRYQRQ1 FAQ
1.How can I place an order for TPS552892QWRYQRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS552892QWRYQRQ1 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 TPS552892QWRYQRQ1 reliable?
The price and inventory of TPS552892QWRYQRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS552892QWRYQRQ1 is usually 5 days.
3.What payment methods are accepted for TPS552892QWRYQRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS552892QWRYQRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS552892QWRYQRQ1?
TPS552892QWRYQRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS552892QWRYQRQ1 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 TPS552892QWRYQRQ1?
For technical support, including TPS552892QWRYQRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS552892QWRYQRQ1 requirements.
6.How does Aetrix verify that TPS552892QWRYQRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS552892QWRYQRQ1 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 TPS552892QWRYQRQ1 meets industry standards.
7.What is the process for return or replacement of TPS552892QWRYQRQ1?
All TPS552892QWRYQRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS552892QWRYQRQ1, 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 TPS552892QWRYQRQ1 part is unused and in its original packaging.
Return procedure for TPS552892QWRYQRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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