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Texas Instruments TPS55287QWRYQRQ1
- Part No.:
- TPS55287QWRYQRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 21-PowerVFQFN
- Datasheet:
-
TPS55287QWRYQRQ1.pdf
- Description:
- IC REG BUCK BOOST PROG 4A 21VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,997
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Product details
Overview
TPS55287QWRYQRQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to +125°C) synchronous buck-boost DC/DC converter with integrated 4-MOSFET power stage, I²C interface, and programmable PPS support for USB Power Delivery. It delivers up to 4A average inductor current, operates from 3.0V to 36V input, supports 0.8V–22V output with ±1% reference accuracy, and achieves 96.7% efficiency at 12VIN/20VOUT/1.5A - ideal for automotive USB PD car chargers.
For engineers reviewing the TPS55287QWRYQRQ1 datasheet, TPS55287QWRYQRQ1 pinout, TPS55287QWRYQRQ1 application, or TPS55287QWRYQRQ1 equivalent, key selection considerations include I²C-programmable output voltage (10mV steps), adjustable cable droop compensation, 200kHz–2.2MHz switching frequency control, ±5% output current monitoring accuracy, and functional safety documentation support.
Technical Context
The TPS55287QWRYQRQ1 employs average current-mode control with internal error amplifier (GEA = 190 µA/V), enabling stable regulation across buck, buck-boost, and boost modes based on VIN/VOUT relationship. Its four-integrated MOSFETs feature RDS(on) of 11–22 mΩ per switch, supporting high-efficiency operation up to 35W from 12V input.
Switching frequency is set via external resistor on FSW pin (200kHz–2.2MHz) or synchronized externally via DITH/SYNC pin; optional spread spectrum modulation reduces EMI peaks. Protection includes hiccup-mode short-circuit response, thermal shutdown at 175°C, output overvoltage protection (22.5–24.5V), and programmable average inductor current limit (3.3–4.8A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 36V - supports wide automotive battery and adapter inputs including cold-crank (≥4.5V) and load-dump (≤42V abs max) conditions. |
| Output Voltage Range | 0.8V to 22V in 10mV steps via I²C - enables precise USB PD PPS compliance and dynamic rail adjustment. |
| Max Output Current | 4A average inductor current - sustains 25W from 9V input or 35W from 12V input in boost mode. |
| Reference Accuracy | ±1% at FB/INT pin - ensures tight output regulation across temperature and line/load variations. |
| Switching Frequency | 200kHz to 2.2MHz - allows optimization for size (high-freq) or efficiency/EMI (low-freq), with external sync capability. |
| I²C Interface | Standard/fast-mode plus (100–1000 kHz), 1.7–5.5V I/O voltage - enables real-time configuration and telemetry in automotive systems. |
| Thermal Protection | 175°C shutdown with 20°C hysteresis - prevents damage during sustained overload or poor PCB thermal design. |
Pinout & Package
TPS55287QWRYQRQ1 is housed in a 3.0mm × 5.0mm, 21-pin VQFN-HR (HotRod™ QFN) package with exposed thermal pad for enhanced power dissipation. The leadless construction minimizes parasitic inductance and improves EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Enable & programmable UVLO input | Logic-high enable (≥1.15V); doubles as UVLO threshold input (1.23V ref) - supports system-level brownout management. |
| SCL / SDA | I²C clock and bidirectional data | Configures output voltage, current limit, cable compensation, and reads status registers - enables closed-loop USB PD negotiation. |
| ISP / ISN | Differential current sense inputs | Monitor output current via external sense resistor; feed into programmable 50mA-step current limit and ±5% monitoring loop. |
| CDC | Cable droop compensation output | Provides voltage proportional to sensed current; used with external resistor to offset IR drop across USB cables (e.g., 700mV boost at 50mV sense). |
| FB/INT | Feedback input / fault indicator | Connects to resistor divider for external VOUT setting; open-drain fault signal pulls low on OVP, thermal shutdown, or current limit fault. |
| SW1 / SW2 | Buck-side and boost-side switching nodes | High-frequency power switching terminals; require low-ESR ceramic boot capacitors (0.1µF each) and careful layout for low EMI. |
| BOOT1 / BOOT2 | Buck/boost high-side gate driver supplies | Must be decoupled to respective SW pins with 0.1µF ceramic caps - critical for robust MOSFET turn-on and efficiency. |
| COMP | Error amplifier output | Connects to RC compensation network between COMP and AGND - sets loop bandwidth and phase margin for transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive infotainment, ADAS, and lighting reliability requirements. |
| Integrated 4-MOSFET buck-boost topology | Eliminates external power switches and reduces BOM count by ≥6 components - enables compact 3.0mm × 5.0mm solution size. |
| Programmable cable droop compensation | Adjustable CDC output compensates for voltage drop across USB cables (e.g., +700mV at 50mV ISP–ISN differential) - maintains target VOUT at device port. |
| Flexible I²C-based power management | Full register map (REF, IOUT_LIMIT, VOUT_SR, STATUS) enables dynamic reconfiguration without hardware changes - supports firmware-upgradable USB PD profiles. |
| EMI mitigation suite | Programmable spread spectrum + external clock sync + HotRod™ QFN package - reduces peak radiated emissions for CISPR 25 Class 5 compliance. |
| Hiccup-mode short-circuit protection | Enters 76ms off-cycle upon sustained overload - limits power dissipation and enables self-recovery without system reset. |
Applications
| Car Charger | USB PD Power Bank |
|---|---|
|
Use Scenario: 12V automotive battery powering dual-port USB-C PD charger delivering 20V/3A to laptop and 9V/3A to phone simultaneously. IC Role / Device Role / Timing Role: Primary buck-boost regulator managing dynamic VOUT negotiation, cable compensation, and current limiting per port via I²C. Use Value: Delivers 35W from 12V input with 96.7% efficiency; programmable droop compensation ensures 20V reaches laptop connector despite 500mΩ cable resistance. |
Use Scenario: Portable power bank using single-cell Li-ion (3.0–4.2V) to generate programmable 5–20V USB PD outputs for fast-charging smartphones and tablets. IC Role / Device Role / Timing Role: Wide-input buck-boost controller enabling single-stage conversion from battery to PD-compliant rails without intermediate stages. Use Value: 0.8V–22V output range covers all USB PD profiles; 4A current capability supports 3A @ 20V (60W) with external current sensing and thermal foldback. |
| Automotive Infotainment Display | ADAS Camera Power Supply |
|
Use Scenario: Central display unit requiring stable 12V rail from variable 9–16V vehicle battery, with ripple-sensitive video processing and touch controller. IC Role / Device Role / Timing Role: Main DC/DC converter supplying clean 12V with FPWM mode enabled to eliminate audible noise and ensure consistent timing margins. Use Value: Programmable 200kHz–2.2MHz switching frequency avoids AM band interference; ±1% VREF ensures <±120mV output tolerance under load transients. |
Use Scenario: Front-facing ADAS camera module powered from 12V battery, requiring low-noise 3.3V/2A supply with fault reporting for ASIL-B compliance. IC Role / Device Role / Timing Role: Isolated power source with open-drain FB/INT fault signaling and thermal shutdown - integrates into functional safety chain. Use Value: Hiccup-mode protection prevents thermal runaway during lens heater faults; I²C status register enables diagnostic logging of overcurrent/overtemp events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4282-AEC1 | 3.3V–36V input, 0.8V–24V output, 3.5A, no I²C interface, fixed 500kHz/2.2MHz freq options | Lacks programmable PPS, cable compensation, and real-time telemetry - suitable for fixed-rail automotive supplies only | Select when I²C control is unnecessary and cost sensitivity outweighs USB PD flexibility |
| LM61480-Q1 | 3.0V–36V input, 0.8V–14V output, 8A, no integrated boost switch, requires external boost diode/MOSFET | Not a true buck-boost; limited to buck-only or external boost - cannot support USB PD 20V output natively | Select only for high-current buck applications where 20V output is not required and board space permits external boost components |
Compared with MPQ4282-AEC1 and LM61480-Q1, the TPS55287QWRYQRQ1 uniquely combines AEC-Q100 Grade 1 qualification, full 4-switch buck-boost integration, I²C-based USB PD PPS compliance, and programmable cable droop compensation - making it the only single-chip solution for automotive USB-C chargers requiring dynamic 5–20V output and fault-aware system integration.
Availability
TPS55287QWRYQRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, USB PD car chargers, and ADAS camera power supplies requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS55287QWRYQRQ1 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 solutions.
The TPS55287-Q1 product line is designed specifically for automotive USB Power Delivery applications, integrating programmable buck-boost conversion, I²C configurability, and AEC-Q100 reliability to replace multi-chip discrete solutions in car chargers and infotainment systems.
FAQ
What is the maximum output power capability of the TPS55287QWRYQRQ1?
The TPS55287QWRYQRQ1 delivers up to 35W from a 12V input (20V/1.75A) and 25W from a 9V input (20V/1.25A) in boost mode. Power capability depends on input voltage, output voltage, ambient temperature, and PCB thermal design. At 12VIN/20VOUT/1.5A, efficiency reaches 96.7%, confirming robust thermal performance under typical USB PD loads. Derating is required above 125°C junction temperature.
Does the TPS55287QWRYQRQ1 support USB Power Delivery Programmable Power Supply (PPS)?
Yes, the TPS55287QWRYQRQ1 explicitly supports USB PD PPS through its I²C interface, enabling 10mV-step output voltage programming from 0.8V to 22V and 50mA-step output current limiting. Its ±1% reference accuracy, programmable cable droop compensation, and real-time current monitoring meet USB PD 3.1 PPS specification requirements for dynamic voltage adjustment during charging negotiation.
How is cable voltage droop compensated using the TPS55287QWRYQRQ1?
The TPS55287QWRYQRQ1 uses the CDC pin to inject a compensation voltage proportional to output current, offsetting IR drop across USB cables. With a resistor from CDC to AGND, it adds up to 750mV to VOUT when ISP–ISN = 50mV. This is configured via the CDC register (Address 5h) and works with internal or external feedback - ensuring regulated voltage is maintained at the far end of the cable.
What protection features does the TPS55287QWRYQRQ1 include?
The TPS55287QWRYQRQ1 integrates output overvoltage protection (22.5–24.5V trip), hiccup-mode short-circuit protection (76ms off-time), thermal shutdown (175°C), average inductor current limit (3.3–4.8A), and cycle-by-cycle peak current limiting. Fault conditions are reported via open-drain FB/INT pin and STATUS register, enabling system-level diagnostics and safe recovery without manual intervention.
Can the TPS55287QWRYQRQ1 operate in forced PWM (FPWM) mode?
Yes, the TPS55287QWRYQRQ1 supports both FPWM and pulse-frequency modulation (PFM) modes. FPWM eliminates frequency variation at light loads, reducing EMI and preventing audible noise in sensitive applications like infotainment displays. Mode selection is controlled via the MODE register (Address 6h), and FPWM operation is confirmed in efficiency curves (Figures 5-1, 5-3, etc.) showing consistent switching frequency across load range.
TPS55287QWRYQRQ1 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:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 22V
- Current - Output:
- 4A
- Frequency - Switching:
- 200kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 21-VQFN-HR (3x5)
TPS55287QWRYQRQ1 FAQ
1.How can I place an order for TPS55287QWRYQRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS55287QWRYQRQ1 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 TPS55287QWRYQRQ1 reliable?
The price and inventory of TPS55287QWRYQRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS55287QWRYQRQ1 is usually 5 days.
3.What payment methods are accepted for TPS55287QWRYQRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS55287QWRYQRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS55287QWRYQRQ1?
TPS55287QWRYQRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS55287QWRYQRQ1 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 TPS55287QWRYQRQ1?
For technical support, including TPS55287QWRYQRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS55287QWRYQRQ1 requirements.
6.How does Aetrix verify that TPS55287QWRYQRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS55287QWRYQRQ1 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 TPS55287QWRYQRQ1 meets industry standards.
7.What is the process for return or replacement of TPS55287QWRYQRQ1?
All TPS55287QWRYQRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS55287QWRYQRQ1, 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 TPS55287QWRYQRQ1 part is unused and in its original packaging.
Return procedure for TPS55287QWRYQRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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