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Texas Instruments TPS55160QPWPTQ1
- Part No.:
- TPS55160QPWPTQ1
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS55160QPWPTQ1.pdf
- Description:
- IC REG BUCK BST ADJ 1A 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:480
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Product details
Overview
TPS55160QPWPTQ1 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. It features automatic step-down/step-up mode transition, 2-MHz fixed-frequency operation, and low-power mode with <15 µA quiescent current - designed for infotainment power rails in start-stop vehicles.
For engineers reviewing the TPS55160QPWPTQ1 datasheet, TPS55160QPWPTQ1 pinout, TPS55160QPWPTQ1 application, or TPS55160QPWPTQ1 equivalent, key selection criteria include its wide VIN range, programmable output voltage via resistive divider, spread-spectrum EMI reduction, ignition wake-up capability, and AEC-Q100 Grade 1 qualification for under-hood environments.
Technical Context
The TPS55160QPWPTQ1 implements a single-inductor, four-switch buck-boost topology with synchronous rectification and fixed 2-MHz PWM control. Its overlap control logic ensures seamless transition between buck and boost modes without output disruption during input voltage transients such as cold-crank (2.3 V) or load-dump (36 V).
It integrates dual bootstrap circuits (BST1/L1 for buck stage; BST2/L2 for boost stage), internal gate drivers, and analog feedback sensing via VOS_FB. The device supports configurable power-good delay (via PG_DLY resistor), IGN-driven wake-up with hysteresis, and low-power mode activation via PS pin - all operating across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 36 V - supports full automotive battery profile including cold-crank (2.3 V) and load-dump (36 V) |
| Output Voltage Range | 5.7 V to 9 V (adjustable via external resistor divider on VOS_FB) - enables flexible rail generation for MCU, CAN transceivers, or display supplies |
| Max Output Current | 1 A at VIN ≥ 5.3 V and VOUT = 5 V - sufficient for infotainment SoC core or audio amplifier bias rails |
| Switching Frequency | 2 MHz (fixed) - allows use of compact 4.7-µH inductor and reduces solution footprint vs. lower-frequency converters |
| Quiescent Current | <15 µA in low-power mode - meets OEM standby current requirements for always-on ECU functions |
| Protection Features | Overtemperature shutdown (175–210°C), output overvoltage protection (110–125% VOUT), and input UV/OV lockout - ensures robust operation in harsh automotive environments |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C ambient) - qualified for powertrain-adjacent and body-control module applications |
Pinout & Package
TPS55160QPWPTQ1 is housed in a thermally enhanced 20-pin HTSSOP PowerPAD™ package (6.50 mm × 4.40 mm) with exposed thermal pad soldered to PGND for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power ground reference | Primary return path for high-current switching paths; must be connected to thermal pad and low-impedance ground plane |
| L1 (Pin 2), L2 (Pin 20) | Buck and boost switch nodes | Connect to opposite ends of single 4.7-µH inductor; define bidirectional energy transfer path |
| BST1 (Pin 3), BST2 (Pin 19) | Buck/boost high-side gate drive bootstrap | Each requires dedicated 100-nF ceramic capacitor to respective switch node (L1/L2) for gate driver supply |
| VINP/VINL (Pins 4, 5) | Main and bias input supplies | Both connect to same battery rail; VINL powers internal bias circuitry, enabling operation down to 2 V |
| IGN (Pin 6) | Ignition wake-up enable | Accepts 2.5–3.7 V threshold wake signal; includes hysteresis (0.76–1.35 V) to reject noise during vehicle startup |
| PS (Pin 7) | Low-power mode control | High = ultra-low-IQ mode (<15 µA); low = full 2-MHz PWM operation - enables dynamic efficiency optimization |
| VOS_FB (Pin 14) | Output voltage feedback | Resistive divider from VOUT sets regulated output (5.7–9 V); 0.8 V nominal reference with ±2% tolerance |
| PG (Pin 15) | Power-good status indicator | Open-drain output asserting low when VOUT deviates >5% from target - used for system sequencing and fault reporting |
| PG_DLY (Pin 10) | Power-good delay configuration | Resistor (10 kΩ–100 kΩ) sets delay from 0.5 ms to 40 ms - prevents false PG assertion during soft-start or transients |
Key Features
| Feature | Design Value |
|---|---|
| Single-inductor buck-boost architecture | Eliminates need for separate buck and boost converters - reduces BOM count, PCB area, and design complexity in space-constrained modules |
| Automatic mode transition | Seamless crossover between buck and boost operation at VOUT ≈ VIN - maintains stable output during battery voltage dips or surges without interruption |
| Selectable spread spectrum | Reduces peak radiated EMI by spreading switching frequency energy - simplifies EMC compliance for infotainment head units near AM/FM antennas |
| Smart power-good with programmable delay | Configurable PG assertion timing avoids false triggers during load steps or input transients - improves system reliability in gateway and cluster applications |
| Ignition wake-up with power-latch | Enables microcontroller-initiated wake from deep sleep using IGN signal; latch function holds output active until MCU explicitly disables - supports CAN bus listen mode |
Applications
| Infotainment Power Supply | Body Control Module (BCM) Rail |
|---|---|
Use Scenario: Powering SoC, display backlight, and audio codec in automotive head unit during engine start-stop cycles. IC Role / Device Role / Timing Role: Primary buck-boost regulator maintaining stable 5.7–8.5 V output despite battery sag to 2.3 V and surge to 36 V. Use Value: Enables uninterrupted infotainment operation during cranking; eliminates need for backup capacitors or secondary regulators. | Use Scenario: Supplying 6.5 V rail to door module MCUs and LIN transceivers in gateway ECUs. IC Role / Device Role / Timing Role: Adjustable-output DC-DC converter configured for 6.5 V via VOS_FB divider, supporting variable load profiles across multiple zones. Use Value: Single part replaces multiple fixed-output regulators; simplifies inventory and layout while meeting AEC-Q100 Grade 1 requirements. |
| Solar-Battery Hybrid Charger | Li-ion Battery Pack Supervisor |
Use Scenario: Regulating variable solar panel output (3–32 V) to charge 7.4-V dual-cell Li-ion battery in telematics tracker. IC Role / Device Role / Timing Role: Buck-boost controller interfacing between unregulated PV source and battery management IC, operating at 2 MHz for compact magnetics. Use Value: Maintains charging efficiency across full solar irradiance range; spread-spectrum feature eases EMI filtering in portable enclosure. | Use Scenario: Providing clean, regulated 8-V auxiliary supply to fuel gauge and protection circuitry in 3S battery pack. IC Role / Device Role / Timing Role: High-voltage input regulator with overvoltage/overtemperature protection, ensuring safe operation during cell imbalance or thermal events. Use Value: Integrated protections eliminate need for discrete supervision components; PG output signals health to host BMS controller. |
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 | Fixed 5-V or 3.3-V output only; no adjustable VOUT; higher 3.5-A IOUT rating but larger solution size | Better suited for high-current, fixed-rail applications like ADAS camera modules - not viable for adjustable 5.7–9-V needs | Select TPS55160QPWPTQ1 when output voltage flexibility and minimal board area are required; LM61480-Q1 only where fixed 5 V and higher current dominate |
| MAX20404ATGB/V+T | 36-V input, 5-V/3.3-V fixed outputs; integrated FETs but no spread spectrum or IGN wake-up | Lacks automotive-specific features (AEC-Q100 Grade 1, ignition interface, power-latch) - limited to industrial or non-critical automotive subsystems | TPS55160QPWPTQ1 remains preferred for safety-critical or start-stop-sensitive systems requiring functional safety support and OEM-compliant wake behavior |
Compared with LM61480-Q1 and MAX20404ATGB/V+T, TPS55160QPWPTQ1 uniquely combines adjustable output voltage, ignition-aware wake-up, spread-spectrum EMI reduction, and AEC-Q100 Grade 1 qualification - making it the only option for compact, flexible, and fully automotive-compliant buck-boost regulation.
Availability
TPS55160QPWPTQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, body electronics gateways, and industrial solar-battery hybrid chargers requiring stable component supply across extended temperature and voltage ranges.
Supply support for TPS55160QPWPTQ1 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 decades of automotive power management innovation.
The TPS5516x-Q1 product line was engineered specifically for automotive power architectures demanding wide-input, bidirectional regulation - targeting start-stop resilience, EMI-sensitive infotainment, and functional safety-ready designs.
FAQ
What is the minimum input voltage required for TPS55160QPWPTQ1 to start switching?
The TPS55160QPWPTQ1 requires a minimum input voltage of 5.3 V at VINP/VINL to initiate switching and regulate output under typical conditions (VOUT = 5 V, IOUT = 400 mA, COUT = 22 µF). Below this, the device remains in shutdown until VIN rises above the startup threshold. This value is specified in the datasheet Section 7.6, Parameter 1.2 (VIN_startup).
How does the TPS55160QPWPTQ1 handle transitions between buck and boost modes?
The TPS55160QPWPTQ1 uses overlap control logic to automatically and seamlessly transition between buck and boost modes as input voltage crosses the output voltage level. There is no discontinuity or output glitch during crossover - critical for powering sensitive loads like infotainment SoCs during battery voltage sag or surge events.
Can the TPS55160QPWPTQ1 be used with a fixed 5-V output instead of adjustable voltage?
No - the TPS55160QPWPTQ1 is specifically the adjustable-output variant (5.7–9 V) within the TPS5516x-Q1 family. Fixed 5-V or 12-V outputs are provided only by the TPS55165-Q1. Using TPS55160QPWPTQ1 for 5 V requires external resistor feedback and achieves 5.7 V minimum; it cannot be configured below that.
What is the purpose of the IGN_PWRL pin on the TPS55160QPWPTQ1?
The IGN_PWRL pin enables power-latch functionality: when driven high, it latches the IGN signal so the TPS55160QPWPTQ1 remains enabled even if the IGN input drops momentarily. This allows external microcontrollers to maintain regulated output during brief ignition interruptions - essential for CAN bus listen-mode operation in modern ECUs.
Does the TPS55160QPWPTQ1 support functional safety certification?
Yes - the TPS55160QPWPTQ1 is functional safety-capable. Texas Instruments provides documentation (FIT data, failure mode analysis, safety manuals) to support ISO 26262 ASIL-B system-level development. It is not ASIL-certified out-of-box, but its architecture and diagnostic features (PG, OV/UV/OT protection, configurable delays) enable integration into safety-critical automotive power domains.
TPS55160QPWPTQ1 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
TPS55160QPWPTQ1 FAQ
1.How can I place an order for TPS55160QPWPTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS55160QPWPTQ1 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 TPS55160QPWPTQ1 reliable?
The price and inventory of TPS55160QPWPTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS55160QPWPTQ1 is usually 5 days.
3.What payment methods are accepted for TPS55160QPWPTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS55160QPWPTQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS55160QPWPTQ1?
TPS55160QPWPTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS55160QPWPTQ1 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 TPS55160QPWPTQ1?
For technical support, including TPS55160QPWPTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS55160QPWPTQ1 requirements.
6.How does Aetrix verify that TPS55160QPWPTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS55160QPWPTQ1 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 TPS55160QPWPTQ1 meets industry standards.
7.What is the process for return or replacement of TPS55160QPWPTQ1?
All TPS55160QPWPTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS55160QPWPTQ1, 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 TPS55160QPWPTQ1 part is unused and in its original packaging.
Return procedure for TPS55160QPWPTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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