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Texas Instruments TPS55160QPWPRQ1
- Part No.:
- TPS55160QPWPRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS55160QPWPRQ1.pdf
- Description:
- IC REG BUCK BST ADJ 1A 20HTSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS55160QPWPRQ1 from Texas Instruments is an automotive-grade synchronous buck-boost DC-DC converter supporting 2-V to 36-V input and adjustable 5.7-V to 9-V output, delivering up to 1 A at VIN ≥ 5.3 V, with automatic step-down/step-up mode transition and 2-MHz fixed-frequency operation. It targets start-stop automotive power rails for infotainment and body electronics.
For engineers reviewing the TPS55160QPWPRQ1 datasheet, TPS55160QPWPRQ1 pinout, TPS55160QPWPRQ1 application, or TPS55160QPWPRQ1 equivalent, key selection considerations include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), <15 µA quiescent current in low-power mode, spread-spectrum enablement, and HTSSOP-20 PowerPAD™ package thermal performance.
Technical Context
The TPS55160QPWPRQ1 implements a synchronous four-switch buck-boost topology with fixed 2-MHz PWM control, enabling seamless transition between buck and boost modes based on input-output voltage relationship. Its internal loop compensation eliminates external compensation components, and the dual bootstrap networks (BST1/L1 and BST2/L2) support independent gate drive for high-side and low-side FETs in both power stages.
Control logic includes dedicated IGN wake-up with hysteresis (2.5–3.7 V threshold), programmable power-good delay via PG_DLY resistor (0.5–40 ms), and configurable low-power mode activation via PS pin. The device integrates overtemperature shutdown (175–210°C), output overvoltage protection (110–125% of VOUT), and undervoltage lockout (2 V typical for VIN).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 36 V - supports full automotive battery range including cold-crank (2.3 V) and load-dump (36 V) |
| Output Voltage Range | 5.7 V to 9 V adjustable - set by external resistive divider on VOS_FB pin, enabling flexible rail generation |
| Max Output Current | 1 A at VIN ≥ 5.3 V - sustains full load under nominal battery conditions without derating |
| Switching Frequency | 2 MHz (fixed) - enables use of compact 4.7-µH inductor and reduces EMI filter size |
| Quiescent Current | <15 µA in low-power mode - meets OEM standby current requirements for ECU listen-to-CAN operation |
| Package | 20-pin HTSSOP PowerPAD™ - 6.5 mm × 4.4 mm footprint with exposed thermal pad for 0.9°C/W junction-to-case (bottom) resistance |
| ESD Rating | HBM ±2000 V, CDM ±500 V - qualified per AEC-Q100 Rev G for automotive reliability |
| Operating Temperature | –40°C to +125°C ambient - Grade 1 automotive qualification ensures robustness in engine bay and cabin environments |
Pinout & Package
The TPS55160QPWPRQ1 is housed in a 20-pin HTSSOP PowerPAD™ package (6.50 mm × 4.40 mm) with an exposed thermal pad that must be soldered to PGND for optimal thermal dissipation and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground | Primary return path for high-current switching nodes; connects directly to thermal pad |
| L1 (Pin 2) | Buck switch node | Connects to one end of buck inductor; interfaces with BST1 for high-side gate drive |
| BST1 (Pin 3) | Buck bootstrap | Supplies gate drive voltage for buck high-side FET; requires 100-nF capacitor to L1 |
| VINP / VINL (Pins 4, 5) | Main & bias supply inputs | Dual-input architecture isolates power path (VINP) from bias circuitry (VINL) for stability during transients |
| IGN (Pin 6) | Ignition enable | High-voltage tolerant (–7 V to 40 V) wake-up input with 1 V hysteresis; triggers startup from vehicle ignition signal |
| PS (Pin 7) | Low-power mode control | Logic-level input selecting between full-switching (PS = low) and ultra-low-IQ mode (PS = high) |
| VOS_FB (Pin 14) | Feedback reference | Analog input for resistive divider setting output voltage (5.7–9 V); 0.8 V nominal reference with ±2% tolerance |
| VOUT_SENSE (Pin 16) | Output voltage sense | High-impedance remote sensing point; improves regulation accuracy under PCB trace IR drop |
| PG (Pin 15) | Power-good indicator | Open-drain output asserting low when VOUT deviates >5% from target; delay configurable via PG_DLY resistor |
| VREG (Pin 12) | Gate-drive supply | Internally regulated 5-V supply for power stages; requires 4.7-µF decoupling to PGND |
Key Features
| Feature | Design Value |
|---|---|
| Automatic buck-boost mode transition | Eliminates manual mode selection and associated output discontinuities during VIN crossing VOUT |
| Selectable spread spectrum | Reduces peak radiated EMI by spreading switching frequency energy across 2-MHz ±100 kHz band |
| Smart power-good with delay programming | Enables precise sequencing control via external resistor on PG_DLY (0.5–40 ms delay range) |
| Power-latch function via IGN_PWRL | Allows MCU to hold output active after IGN removal-critical for post-ignition diagnostics and CAN wake-up |
| Integrated overtemperature and overvoltage protection | Self-shutdown at 175–210°C junction temp and VOUT >125% nominal-no external monitoring required |
| Low-power mode with <15 µA IQ | Extends battery life in always-on ECUs while maintaining fast wake-up response (<100 µs) |
Applications
| Infotainment Power Supply | Body Control Module (BCM) |
|---|---|
Use Scenario: Powering head-unit processors and display drivers during engine start-stop cycles where battery voltage dips to 2.3 V. IC Role / Device Role / Timing Role: Primary buck-boost regulator maintaining stable 5.7–8.5 V rail despite wide VIN fluctuation. Use Value: Delivers 0.4 A at 2.3 V input-enough to sustain critical functions during cranking without brownout. | Use Scenario: Supplying gateway microcontrollers and CAN transceivers in door modules with intermittent 12-V supply. IC Role / Device Role / Timing Role: Synchronous buck-boost converter providing regulated 7-V rail from noisy vehicle battery. Use Value: 2-MHz switching minimizes inductor size and enables compact layout in space-constrained door modules. |
| Solar-Battery Hybrid Charger | Li-ion Battery Pack Supervisor |
Use Scenario: Regulating variable solar panel output (3–32 V) to charge 7.4-V Li-ion packs in portable automotive tools. IC Role / Device Role / Timing Role: Bidirectional-capable DC-DC stage adapting source voltage to battery charging profile. Use Value: Adjustable 5.7–9 V output matches common 2S Li-ion CV thresholds without external DAC or controller. | Use Scenario: Providing auxiliary 8-V rail for fuel gauge ICs and protection circuitry in 3S/4S battery packs subject to load dump. IC Role / Device Role / Timing Role: High-voltage-tolerant buck-boost regulator surviving 40-V transients per AEC-Q100. Use Value: Integrated OVLO (36–40 V) and OVP (125% VOUT) eliminate need for external TVS or supervisor ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480-Q1 | Single-switch buck-boost with lower max input (20 V), no spread spectrum, higher IQ (25 µA) | Not suitable for 36-V load-dump environments; limited to mid-range automotive rails | Choose when cost sensitivity outweighs 36-V robustness and EMI requirements |
| MAX20404ATPA/VY+ | 36-V buck-boost with integrated inductor, 1.2-MHz switching, no IGN wake-up or power latch | Lacks automotive-specific wake-up logic and latch functionality needed for ECU sleep/wake protocols | Prefer for space-constrained designs where board area > functional integration |
Compared with LM61480-Q1 and MAX20404ATPA/VY+, the TPS55160QPWPRQ1 uniquely combines 36-V input tolerance, AEC-Q100 Grade 1 operation, programmable power-good delay, and ignition-latch capability-making it the only option qualified for safety-critical start-stop power domains requiring guaranteed wake-up behavior and transient resilience.
Availability
TPS55160QPWPRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, and industrial solar-battery hybrid chargers requiring stable component supply across extended temperature and voltage ranges.
Supply support for TPS55160QPWPRQ1 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 power management ICs.
The TPS5516x-Q1 product line was designed specifically for automotive start-stop and battery-cranking resilient applications, delivering regulated output from highly unstable vehicle battery sources without external supervision.
FAQ
What is the minimum input voltage required for TPS55160QPWPRQ1 to start up?
The TPS55160QPWPRQ1 requires a minimum input voltage of 5.3 V at VINP and VINL pins to initiate startup under standard test conditions (TJ = 25°C, IOUT < 400 mA, COUT = 22 µF). This threshold ensures reliable turn-on before the output reaches power-good assertion level. Below this, the device remains in shutdown until VIN exceeds the UVLO rising threshold of 2 V, but full regulation does not commence until 5.3 V is reached. The TPS55160QPWPRQ1 maintains regulation down to 2.3 V once running.
How does the TPS55160QPWPRQ1 handle transitions between buck and boost modes?
The TPS55160QPWPRQ1 uses overlap control logic to automatically transition between buck and boost modes without interruption or output glitch. When VIN crosses VOUT (e.g., VIN drops below 7 V while regulating 7.5 V), the controller seamlessly shifts duty cycle and phase relationships across all four internal switches. This occurs within one switching cycle at 2 MHz, ensuring continuous regulation and eliminating the need for external mode-selection circuitry. The TPS55160QPWPRQ1 achieves this using internal voltage comparators and adaptive gate timing.
Can the TPS55160QPWPRQ1 be used without the spread-spectrum feature?
Yes, the TPS55160QPWPRQ1 can operate without spread spectrum by pulling the SS_EN pin low. In this state, the device runs at a precise 2-MHz fixed frequency with minimal jitter, simplifying EMI filter design when spectral purity is preferred over peak reduction. The SS_EN pin has an internal pullup current of 85–266 µA, so a direct connection to GND ensures reliable disable. Leaving SS_EN open enables spread spectrum by default. This configuration flexibility is exclusive to the TPS55160QPWPRQ1 and TPS55165-Q1 variants.
What is the purpose of the IGN_PWRL pin on the TPS55160QPWPRQ1?
The IGN_PWRL pin on the TPS55160QPWPRQ1 enables power-latch functionality: when driven high, it latches the IGN signal so the device remains enabled even after the ignition signal goes low. This allows microcontrollers to maintain regulated output during post-ignition diagnostic sequences or CAN bus wake-up events. The latch is reset only when IGN returns low *and* IGN_PWRL is pulled low. This behavior is critical for automotive ECUs needing uninterrupted power during key-off communication windows. The TPS55160QPWPRQ1 implements this with internal SR-latch logic tied to these two pins.
Does the TPS55160QPWPRQ1 require external compensation components?
No, the TPS55160QPWPRQ1 features fully internal loop compensation, eliminating the need for external capacitors or resistors on the COMP pin. This simplifies design, reduces BOM count, and improves production consistency. The compensation network is optimized for the 4.7-µH inductor and recommended output capacitor values (18–47 µF ceramic). Layout guidelines still require careful placement of feedback resistors and input/output capacitors per Section 11 of the datasheet, but no compensation components are required. This integration is factory-trimmed and validated across temperature and process corners for the TPS55160QPWPRQ1.
TPS55160QPWPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- 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):
- 2V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 5.7V
- Voltage - Output (Max):
- 9V
- Current - Output:
- 1A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TPS55160QPWPRQ1 FAQ
1.How can I place an order for TPS55160QPWPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS55160QPWPRQ1 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 TPS55160QPWPRQ1 reliable?
The price and inventory of TPS55160QPWPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS55160QPWPRQ1 is usually 5 days.
3.What payment methods are accepted for TPS55160QPWPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS55160QPWPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS55160QPWPRQ1?
TPS55160QPWPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS55160QPWPRQ1 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 TPS55160QPWPRQ1?
For technical support, including TPS55160QPWPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS55160QPWPRQ1 requirements.
6.How does Aetrix verify that TPS55160QPWPRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS55160QPWPRQ1 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 TPS55160QPWPRQ1 meets industry standards.
7.What is the process for return or replacement of TPS55160QPWPRQ1?
All TPS55160QPWPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS55160QPWPRQ1, 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 TPS55160QPWPRQ1 part is unused and in its original packaging.
Return procedure for TPS55160QPWPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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