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Texas Instruments TPS54160ADRCT
- Part No.:
- TPS54160ADRCT
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS54160ADRCT.pdf
- Description:
- IC REG BUCK ADJ 1.5A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:6,410
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Product details
Overview
TPS54160ADRCT from Texas Instruments is a 60-V input, 1.5-A synchronous step-down DC/DC converter with integrated 200-mΩ high-side MOSFET, Eco-mode™ pulse-skipping for 116-μA quiescent current at light load, and adjustable 100 kHz–2.5 MHz switching frequency via RT/CLK pin. It delivers regulated 0.8 V to 58 V output in industrial power supplies requiring wide VIN range and low-noise operation.
For engineers reviewing the TPS54160ADRCT datasheet, TPS54160ADRCT pinout, TPS54160ADRCT application, or TPS54160ADRCT equivalent, key selection considerations include its tighter enable threshold (1.11–1.36 V) versus TPS54160, boot UVLO protection, PWRGD open-drain monitoring (94–107% window), and VSON-10 PowerPAD™ thermal performance (θJA = 40°C/W).
Technical Context
The TPS54160ADRCT implements constant-frequency peak current-mode control with internal slope compensation to prevent subharmonic oscillation across 0–100% duty cycle. Its error amplifier features 26 μMhos transconductance during slow start and 97 μMhos in normal operation, driving COMP to regulate VSENSE against a 0.8-V reference with ±1.6 mV accuracy over temperature.
It integrates boot recharge diode and BOOT-PH UVLO (2.1 V threshold), enabling 100% duty-cycle operation while maintaining gate drive integrity. The RT/CLK pin supports both resistor-set frequency tuning and external clock synchronization via PLL, with lock-in time under 100 μs and 40-ns minimum CLK pulse width.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5 V to 60 V - supports 12 V, 24 V, and 48 V industrial bus rails with margin for transients. |
| Output Current | 1.5 A continuous - sufficient for FPGA I/O, microcontroller cores, and sensor signal chains. |
| Quiescent Current | 116 μA - enables battery-backed systems and always-on monitoring without rapid drain. |
| Switching Frequency | 100 kHz to 2.5 MHz - allows optimization of inductor size (e.g., 2.2 μH at 1 MHz) and EMI filtering. |
| Reference Voltage | 0.8 V ±1.6 mV - sets precise output regulation point; used with external resistor divider for adjustable VOUT. |
| Enable Threshold | 1.11–1.36 V - tighter hysteresis than TPS54160 for accurate UVLO at 7.7 V (rising) / 6.7 V (falling). |
| PWRGD Window | 94–107% of VREF - provides reliable power-good assertion for system sequencing and fault detection. |
| Thermal Resistance | θJA = 40°C/W (VSON-10) - enables 1.5-A operation at +85°C ambient with minimal heatsinking. |
Pinout & Package
VSON-10 (3 mm × 3 mm) package with exposed thermal pad (Pin 11) electrically connected to GND for optimal thermal dissipation. Pinout matches MSOP-10 functional assignment but with improved θJA and lower profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT (1) | Bootstrap supply node | Drives high-side MOSFET gate; requires 0.1-μF X7R/X5R ceramic capacitor to PH for stable 100% duty-cycle operation. |
| VIN (2) | Main input supply | Accepts 3.5–60 V; powers internal bias circuits and high-side driver; includes 2.5-V internal UVLO. |
| EN (3) | Enable control input | Pulled up internally; <1.25 V disables device (1.3 μA shutdown current); external resistors adjust UVLO threshold. |
| SS/TR (4) | Slow-start/tracking control | Charges external capacitor to control output ramp rate; supports sequencing via resistor divider; discharges during faults. |
| RT/CLK (5) | Frequency configuration | Resistor-to-GND sets fSW (100–2500 kHz); pulled above 1.9 V switches to external clock sync mode (300–2200 kHz). |
| PWRGD (6) | Power-good status | Open-drain output asserts low when VSENSE <94% or >107% of nominal; requires external pull-up. |
| VSENSE (7) | Feedback input | Inverting input of transconductance error amplifier; compares output voltage (via resistor divider) to 0.8-V reference. |
| COMP (8) | Error amplifier output | Drives current-mode PWM comparator; connects to external RC compensation network for loop stability. |
| GND (9) | Power ground | Reference for all analog and power circuits; must be tied to thermal pad (Pin 11) for thermal and electrical integrity. |
| PH (10) | Switch node | Source of internal high-side MOSFET; connects to inductor and bootstrap capacitor; carries high di/dt switching current. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ pulse skipping | Reduces light-load quiescent current to 116 μA while maintaining regulation-critical for energy-sensitive remote sensors. |
| Tighter EN threshold (TPS54160A) | 1.11–1.36 V enable range improves UVLO accuracy vs. TPS54160 (0.9–1.55 V), enabling robust 48-V rail startup at 7.7 V. |
| Integrated boot diode & UVLO | Eliminates external diode; BOOT-PH UVLO (2.1 V) ensures gate drive integrity during dropout, supporting true 100% duty cycle. |
| OV/UV power-good detection | PWRGD monitors both overvoltage (109%) and undervoltage (92%) thresholds, enabling fail-safe system reset and sequencing. |
| Overload recovery circuit | Automatically discharges SS/TR capacitor during overcurrent/thermal fault and re-ramps output on recovery-no manual reset needed. |
| Frequency foldback | Reduces fSW during startup and overload to limit inductor current slew rate and prevent saturation under fault conditions. |
Applications
| Industrial Power Supply | Aftermarket Automotive Electronics |
|---|---|
Use Scenario: 48-V to 3.3-V conversion for PLC I/O modules operating in harsh factory environments with wide temperature swings and voltage transients. IC Role / Device Role / Timing Role: Primary buck regulator delivering clean, regulated 3.3 V at up to 1.5 A; PWRGD signals MCU when rail is stable. Use Value: 60-V rating absorbs 48-V bus surges; 40°C/W θJA sustains full load at +85°C; Eco-mode extends standby battery life. |
Use Scenario: Powering GPS navigation units and infotainment displays in vehicles where input voltage ranges from 6 V (cranking) to 42 V (load dump). IC Role / Device Role / Timing Role: Input-stage DC/DC converter stepping down unregulated automotive battery voltage to stable 5 V or 3.3 V for digital subsystems. Use Value: Wide 3.5–60-V input handles cold-crank (6 V) and load-dump (42 V); tight EN threshold enables precise brownout detection. |
| Low-Power Remote Sensor Node | Programmable Logic Controller (PLC) Auxiliary Rail |
Use Scenario: Solar-powered environmental sensor node requiring multi-year battery life with periodic wireless transmission bursts. IC Role / Device Role / Timing Role: Always-on 3.3-V supply; enters Eco-mode between transmissions to minimize idle current draw. Use Value: 116-μA quiescent current enables >5-year battery life on 2000-mAh Li-SOCl₂ cell; SS/TR enables controlled wake-up sequencing. |
Use Scenario: Generating isolated 12-V auxiliary rail for analog front-end and communication interfaces in modular PLC backplanes. IC Role / Device Role / Timing Role: Non-isolated buck stage feeding downstream isolated DC/DC converters; synchronized via RT/CLK to reduce system EMI. Use Value: External clock sync eliminates beat frequencies; 200-mΩ MOSFET minimizes conduction loss at 1.2-A typical load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54160ADGQ | Same IC die, MSOP-10 package (θJA = 62.5°C/W); no PowerPAD™ thermal pad; 2.5-mm height vs. 1-mm VSON profile. | Less effective thermal performance in high-density layouts; unsuitable for sealed enclosures or high-ambient designs. | Select only if board space permits larger footprint and thermal constraints are relaxed. |
| LM5164QPWPRQ1 | Automotive-grade (AEC-Q100), 65-V input, 1-A output, 1.5-μA shutdown current; no Eco-mode; uses valley current mode control. | Higher reliability for automotive under-hood use; lower output current; lacks light-load efficiency optimization. | Choose for automotive safety-critical systems requiring qualification; not drop-in due to different control architecture and pinout. |
Compared with TPS54160ADGQ, the TPS54160ADRCT offers superior thermal management and smaller footprint; compared with LM5164QPWPRQ1, it delivers higher output current and better light-load efficiency but lacks AEC-Q100 certification and automotive qualification support.
Availability
TPS54160ADRCT is available at Aetrix Electronics and suitable for industrial automation, automotive aftermarket electronics, and remote sensing applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for TPS54160ADRCT 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 power management technologies with over 50 years of innovation in high-reliability power conversion.
The TPS54160A product line delivers high-voltage, high-efficiency buck regulators for industrial, automotive, and telecom applications where wide input range, low quiescent current, and robust fault protection are essential.
FAQ
What is the maximum input voltage rating for the TPS54160ADRCT?
The TPS54160ADRCT supports an absolute maximum input voltage of 65 V, with recommended operating range from 3.5 V to 60 V. This enables reliable operation across 12-V, 24-V, and 48-V industrial and automotive supply rails, including transient surges up to 65 V without damage. The internal UVLO is set at 2.5 V but can be adjusted using the EN pin.
How does the Eco-mode™ function in the TPS54160ADRCT improve efficiency at light loads?
The TPS54160ADRCT enters Eco-mode™ pulse-skipping when load current drops below ~100 mA, reducing switching activity and drawing only 116 μA quiescent current. During this mode, the output capacitor supplies load current between pulses, minimizing gate drive and switching losses. The internal PLL remains active to maintain synchronization capability even in sleep state.
Can the TPS54160ADRCT synchronize to an external clock, and what are the requirements?
Yes, the TPS54160ADRCT synchronizes to an external clock via the RT/CLK pin. When pulled above 1.9 V, the pin becomes a high-impedance clock input accepting 300–2200 kHz signals with ≥40 ns pulse width. PLL lock-in occurs within 100 μs. If clocking stops, the device automatically reverts to resistor-set mode, ensuring graceful fallback behavior.
What is the purpose of the SS/TR pin on the TPS54160ADRCT, and how is it configured for sequencing?
The SS/TR pin controls output voltage ramp rate and supports power supply sequencing. For slow start, connect a capacitor to GND; for tracking, apply a reference voltage via resistor divider. During faults or disable events, the pin is actively discharged to ensure repeatable restart. The charge current is 2 μA, and crossover occurs at 98% of nominal output.
Does the TPS54160ADRCT require an external bootstrap diode, and why or why not?
No, the TPS54160ADRCT integrates the bootstrap diode internally, eliminating the need for an external component. This reduces BOM count and layout complexity while improving reliability. A 0.1-μF X7R/X5R ceramic capacitor between BOOT and PH is still required to supply gate drive voltage to the high-side MOSFET during switching cycles.
TPS54160ADRCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 58V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 100kHz ~ 2.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS54160ADRCT FAQ
1.How can I place an order for TPS54160ADRCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54160ADRCT 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 TPS54160ADRCT reliable?
The price and inventory of TPS54160ADRCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54160ADRCT is usually 5 days.
3.What payment methods are accepted for TPS54160ADRCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54160ADRCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54160ADRCT?
TPS54160ADRCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54160ADRCT 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 TPS54160ADRCT?
For technical support, including TPS54160ADRCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54160ADRCT requirements.
6.How does Aetrix verify that TPS54160ADRCT is sourced from the original manufacturer or authorized distributors?
All TPS54160ADRCT 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 TPS54160ADRCT meets industry standards.
7.What is the process for return or replacement of TPS54160ADRCT?
All TPS54160ADRCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS54160ADRCT, 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 TPS54160ADRCT part is unused and in its original packaging.
Return procedure for TPS54160ADRCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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