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Texas Instruments TPS54160DGQR
- Part No.:
- TPS54160DGQR
- Manufacturer:
- Texas Instruments
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS54160DGQR.pdf
- Description:
- IC REG BUCK ADJ 1.5A 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,767
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Product details
Overview
TPS54160DGQR 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 3.3-V output in industrial power supplies requiring wide VIN range and low standby consumption.
For engineers reviewing the TPS54160DGQR datasheet, TPS54160DGQR pinout, TPS54160DGQR application, or TPS54160DGQR equivalent, key selection considerations include its 3.5–60-V input range, 0.8-V internal reference, PWRGD open-drain power-good signal (94–107% window), EN pin with 1.11–1.36-V threshold (TPS54160A variant), and MSOP-10 PowerPAD™ thermal package.
Technical Context
The TPS54160DGQR implements constant-frequency peak-current-mode control with slope compensation to prevent subharmonic oscillation across duty cycles. Its integrated boot regulator monitors BOOT–PH voltage and disables the high-side MOSFET if it falls below ~2.1 V, enabling reliable 100% duty-cycle operation during dropout.
It features an internal phase-locked loop (PLL) on the RT/CLK pin for external clock synchronization (300–2200 kHz), frequency foldback during startup/overload, and an overload recovery circuit that discharges the SS/TR capacitor to ensure repeatable restart after thermal shutdown or UVLO fault.
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 without pre-regulation. |
| Output Current | 1.5 A continuous - sufficient for powering microcontrollers, sensors, and interface ICs in embedded systems. |
| Quiescent Current | 116 μA - enables battery-backed or energy-harvesting applications with multi-week standby life. |
| Switching Frequency | 100 kHz to 2.5 MHz - allows optimization of inductor size (e.g., 2.2 μH at 1.2 MHz) and EMI filtering. |
| Reference Voltage | 0.8 V ±1.6% - sets minimum output voltage; output programmable from 0.8 V to 58 V via VSENSE resistor divider. |
| Power-Good Window | 94% to 107% of VOUT - provides robust system reset signaling with hysteresis against noise-induced toggling. |
| Shutdown Current | 1.3 μA - reduces system leakage during deep sleep or fault lockout. |
| Enable Threshold | 1.11 V to 1.36 V (TPS54160A) - tighter UVLO than TPS54160 for precise input rail monitoring. |
Pinout & Package
TPS54160DGQR uses the MSOP-10 PowerPAD™ package (3 mm × 3 mm, 0.5-mm pitch) with exposed thermal pad (Pin 11) electrically connected to GND for enhanced thermal performance (θJA = 62.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT (1) | Bootstrap supply node | Connects to 0.1-μF X7R/X5R ceramic capacitor between BOOT and PH; enables gate drive for integrated high-side MOSFET. |
| VIN (2) | Main input supply | Accepts 3.5–60 V; powers internal bias circuits and high-side driver; includes internal 2.5-V UVLO. |
| EN (3) | Enable control input | Pulled up internally; float to enable; pull below 1.2 V to disable; supports resistor-divider UVLO adjustment. |
| SS/TR (4) | Slow-start/tracking node | Controls output ramp time via external capacitor; supports sequencing by overriding internal reference with external voltage. |
| RT/CLK (5) | Frequency setting/sync input | Resistor-to-GND sets fSW (100–2500 kHz); pulled above 1.9 V to accept external clock (300–2200 kHz). |
| PWRGD (6) | Open-drain power-good output | Asserts low when VSENSE < 94% or > 107% of nominal; requires external pull-up for logic-level signaling. |
| 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; connect Type II/III compensation network here for stability. |
| GND (9) | Power and signal ground | Common return for VIN, PH, and thermal pad; must be low-impedance connection to PCB ground plane. |
| PH (10) | Power switch node | Source of internal high-side MOSFET; connects to inductor; forms buck switch node with BOOT and GND. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode™ pulse skipping | Maintains >70% efficiency at 10-mA load while drawing only 116 μA input current-critical for always-on IoT nodes. |
| Integrated boot diode | Eliminates external bootstrap diode; reduces BOM count and layout area while supporting 100% duty cycle operation. |
| Adjustable UVLO with hysteresis | EN pin allows user-defined start/stop thresholds (e.g., 7.7 V start / 6.7 V stop) using two resistors-prevents brownout oscillation. |
| OV/UV power-good detection | Dual-comparator PWRGD asserts on overvoltage (>109%) or undervoltage (<92%), enabling safe system reset before rail collapse. |
| Thermal shutdown + foldback | Shuts down at 182°C and reduces fSW during overload to limit inductor current-protects magnetics and MOSFET under sustained fault. |
| SS/TR discharge on fault | Automatically discharges slow-start capacitor during thermal/UVLO/shutdown events-ensures deterministic restart timing. |
Applications
| Industrial Power Supply | Aftermarket Automotive Electronics |
|---|---|
Use Scenario: 24-V truck battery powers a CAN-connected telematics module with GPS, cellular modem, and display. IC Role / Device Role / Timing Role: Primary buck regulator converting 9–32-V unregulated vehicle bus to stable 3.3-V logic supply. Use Value: 60-V max rating withstands load-dump transients; 116-μA IQ extends battery life during ignition-off parking mode. |
Use Scenario: 48-V PoE++ switch supplies auxiliary 5-V/3.3-V rails to surveillance camera DSP and image sensor. IC Role / Device Role / Timing Role: Secondary isolated buck stage delivering low-noise 3.3-V core voltage to FPGA I/O banks. Use Value: Adjustable fSW avoids switching noise in sensitive analog video bands; PWRGD coordinates power sequencing with FPGA configuration. |
| Energy-Harvesting Sensor Node | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Solar-charged supercapacitor powers wireless temperature sensor node operating intermittently for years. IC Role / Device Role / Timing Role: Ultra-low-IQ step-down converter regulating harvested energy to 1.8-V MCU supply. Use Value: 1.3-μA shutdown current minimizes leakage; Eco-mode maintains regulation down to 100-μA load without burst noise. |
Use Scenario: DIN-rail mounted PLC backplane distributes 24-V to multiple I/O modules requiring isolated 5-V and 3.3-V rails. IC Role / Device Role / Timing Role: Local point-of-load regulator generating 3.3-V supply for digital isolators and ADC drivers. Use Value: MSOP-10 PowerPAD™ enables compact thermal design in space-constrained modules; RT/CLK sync aligns switching to system clock for EMI reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QPWPRQ1 | 4.5–65-V input, 1-A, 1.5-MHz fixed-frequency; no Eco-mode; higher IQ (25 μA active, 1.5 μA shutdown). | Automotive AEC-Q100 Grade 1; supports higher ambient temp (125°C); lacks PWRGD and SS/TR tracking. | Choose for automotive-qualified designs needing higher VIN margin and extended temperature range; not drop-in due to different pinout and feature set. |
| MP2451DT-LF-Z | 4.5–36-V input, 0.6-A, 2-MHz fixed-frequency; 26-μA IQ; no PWRGD, no SS/TR, no frequency sync. | Cost-optimized consumer-grade part; smaller SOIC-8 package; lacks UVLO adjustability and overload recovery. | Choose for space-constrained, non-critical 12-V systems where 0.6-A output suffices and advanced protection is unnecessary. |
Compared with LM5164QPWPRQ1 and MP2451DT-LF-Z, the TPS54160DGQR offers unique Eco-mode efficiency at microamp loads, precise PWRGD windowing, and flexible sequencing via SS/TR-making it optimal for industrial and battery-sensitive applications where light-load performance and system coordination are critical.
Availability
TPS54160DGQR is available at Aetrix Electronics and suitable for industrial automation, automotive aftermarket electronics, and energy-harvesting sensor networks requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for TPS54160DGQR 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 decades of expertise in high-reliability DC/DC conversion.
The TPS54160 family was designed for rugged industrial and automotive power supplies demanding wide input range, low quiescent current, and integrated protection-targeting applications from PLCs to telematics and battery-backed instrumentation.
FAQ
What is the maximum input voltage rating for the TPS54160DGQR?
The TPS54160DGQR has an absolute maximum input voltage rating of 65 V, with recommended continuous operation from 3.5 V to 60 V. This 60-V rating enables direct use with 48-V industrial buses and withstands transient spikes common in automotive and factory environments. The device incorporates internal UVLO and thermal shutdown to protect against overvoltage conditions beyond normal operation.
Does the TPS54160DGQR support external clock synchronization?
Yes, the TPS54160DGQR supports external clock synchronization via the RT/CLK pin. When pulled above 1.9 V, the pin transitions from resistor-set frequency mode to high-impedance clock input, accepting external signals from 300 kHz to 2.2 MHz. The internal PLL locks within 100 μs, ensuring deterministic phase alignment-critical for EMI reduction in dense PCB layouts.
How does the Eco-mode™ function improve light-load efficiency in the TPS54160DGQR?
Eco-mode™ in the TPS54160DGQR enables pulse-skipping operation below ~100 mA load, reducing switching losses and maintaining >70% efficiency while drawing only 116 μA quiescent current. Unlike burst-mode regulators, it retains synchronous rectification and PLL operation during skip cycles-minimizing output voltage ripple and enabling clean wake-up for interrupt-driven microcontrollers.
What is the role of the SS/TR pin in the TPS54160DGQR, and how is it used for power sequencing?
The SS/TR pin in the TPS54160DGQR controls output voltage ramp rate via an external capacitor (slow-start) or accepts an external voltage reference (tracking). For sequencing, a resistor divider from a master rail can drive SS/TR to force the TPS54160DGQR output to follow another supply-ensuring proper power-up order in FPGAs or multi-rail processors without additional supervisors.
Can the TPS54160DGQR operate with 100% duty cycle, and under what conditions?
Yes, the TPS54160DGQR supports 100% duty cycle operation as long as the BOOT–PH voltage remains above ~2.1 V. This condition is maintained by the internal boot regulator and external 0.1-μF ceramic capacitor. It enables dropout operation down to VIN ≈ VOUT + (IOUT × RDS(on)), critical for high-efficiency low-VIN scenarios like battery-powered systems near end-of-discharge.
TPS54160DGQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Eco-Mode™
- Package/Case:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-HVSSOP
TPS54160DGQR FAQ
1.How can I place an order for TPS54160DGQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54160DGQR 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 TPS54160DGQR reliable?
The price and inventory of TPS54160DGQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54160DGQR is usually 5 days.
3.What payment methods are accepted for TPS54160DGQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54160DGQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54160DGQR?
TPS54160DGQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54160DGQR 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 TPS54160DGQR?
For technical support, including TPS54160DGQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54160DGQR requirements.
6.How does Aetrix verify that TPS54160DGQR is sourced from the original manufacturer or authorized distributors?
All TPS54160DGQR 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 TPS54160DGQR meets industry standards.
7.What is the process for return or replacement of TPS54160DGQR?
All TPS54160DGQR units undergo pre-shipment inspection (PSI). If there is an issue with TPS54160DGQR, 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 TPS54160DGQR part is unused and in its original packaging.
Return procedure for TPS54160DGQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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