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Texas Instruments TPS62147RGXR
- Part No.:
- TPS62147RGXR
- Manufacturer:
- Texas Instruments
- Package:
- 11-VFQFN
- Datasheet:
-
TPS62147RGXR.pdf
- Description:
- IC REG BUCK ADJ 2A 11VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS62147RGXR from Texas Instruments is a high-accuracy, 3-V to 17-V input, 2-A synchronous step-down DC/DC converter using DCS-Control topology. It delivers ±1% output voltage accuracy in PWM mode, supports adjustable output from 0.8 V to 12 V, and operates at 1.25 MHz or 2.5 MHz switching frequency. It is used in industrial PCs and video surveillance systems requiring stable, low-quiescent-current POL regulation.
For engineers reviewing the TPS62147RGXR datasheet, TPS62147RGXR pinout, TPS62147RGXR application, or TPS62147RGXR equivalent, key selection considerations include its HICCUP overcurrent protection (distinct from TPS62148's active discharge), 18-µA typical quiescent current, 11-pin 2-mm × 3-mm VQFN package, and precise ENABLE/PG sequencing capability for multi-rail power systems.
Technical Context
The TPS62147RGXR implements DCS-Control-a hybrid regulation architecture combining fast comparator-based transient response with internal voltage feedback compensation for stable operation across wide VIN/VOUT ranges. Its MODE pin selects between seamless PWM/PFM auto-transition (for ultra-low-light-load efficiency) and forced PWM (for fixed-frequency EMI control).
It integrates dual MOSFETs with 100 mΩ high-side and 39 mΩ low-side RDS(on), supports 100% duty-cycle operation down to VIN ≈ VOUT + 15%, and features programmable UVLO via EN pin divider, thermal shutdown at 160°C, and open-drain PG with 93–98% VOUT threshold hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports multi-cell Li-ion batteries and standard 12-V intermediate rails without external pre-regulation. |
| Output Current | 2 A continuous - sufficient for powering FPGA I/O banks, microcontroller cores, or industrial sensor signal chains. |
| Output Voltage Accuracy | ±1% in PWM mode - enables tight regulation for ADC references or precision analog circuitry without post-regulation. |
| Quiescent Current | 18 µA typical - sustains >1-year battery life in always-on industrial monitoring nodes with 200-mAh cells. |
| Switching Frequency | 1.25 MHz or 2.5 MHz (FSEL-selectable) - allows compact 1–2.2 µH inductors and avoids AM radio band interference. |
| Protection Features | HICCUP overcurrent, thermal shutdown, UVLO - provides robust fault recovery in unattended factory automation equipment. |
| Package | RGX (11-pin VQFN, 2 mm × 3 mm) - enables high-density PCB layouts with minimal thermal resistance (RθJA = 38.4°C/W). |
Pinout & Package
TPS62147RGXR is housed in a thermally enhanced 11-pin VQFN package (2.0 mm × 3.0 mm, 0.5-mm pitch) with exposed thermal pad. Pin 1 is VIN; pin 3 is GND; pin 4 is AGND; pin 11 is FSEL. The package supports reflow soldering per JEDEC J-STD-020 and requires PCB copper pour under the thermal pad for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 3–17 V; must be decoupled with ≥10 µF ceramic capacitor placed adjacent to pin for low-impedance path to GND. |
| SW (Pin 2) | Switch node | Connects to external inductor; carries high di/dt; requires minimized loop area to reduce EMI and voltage spikes. |
| GND (Pin 3) | Power ground | Main return path for high-current switching; tied directly to PCB ground plane under package. |
| AGND (Pin 4) | Analog ground | Reference for FB, PG, and internal control circuits; connected to GND at single point near IC to avoid noise coupling. |
| FB (Pin 5) | Feedback input | Senses output voltage via resistive divider; 0.7-V reference enables precise VOUT setting from 0.8 V upward. |
| VOS (Pin 6) | Output voltage sense | Direct Kelvin connection to output capacitor anode; improves load regulation by eliminating PCB trace IR drop error. |
| PG (Pin 7) | Power-good output | Open-drain signal asserting when VOUT reaches 93–98% of target; used for rail sequencing or system reset assertion. |
| EN (Pin 8) | Enable control | Logic-compatible input with 0.7–0.83 V rising threshold; supports programmable UVLO and startup delay via RC network. |
| SS/TR (Pin 9) | Soft-start/tracking | Controls ramp rate of output voltage during startup; also accepts external voltage for supply tracking in multi-rail systems. |
| MODE (Pin 10) | Operation mode select | Pull low for automatic PWM/PFM transition (AEE); pull high for fixed-frequency forced PWM-critical for EMI-sensitive designs. |
| FSEL (Pin 11) | Frequency select | Pull low for 1.25 MHz (lower switching loss, larger inductor); pull high for 2.5 MHz (smaller passive components, higher light-load efficiency). |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Combines hysteretic speed with voltage-mode stability-delivers <10-µs load transient response and <1% output deviation without external compensation. |
| Automatic Efficiency Enhancement (AEE) | Adaptively scales switching frequency and on-time based on VIN, VOUT, and IOUT-maintains >85% efficiency from 1 mA to 2 A across 3–17 V input range. |
| 100% duty-cycle mode | Enables regulation down to VIN = VOUT + ~0.2 V (at 2 A), extending runtime in battery-powered applications where input voltage sags near output level. |
| Precise ENABLE input | 0.8-V rising threshold with 100-mV hysteresis allows accurate undervoltage lockout and controlled power-up sequencing without external comparators. |
| HICCUP overcurrent protection | Shuts down on sustained overload, then retries after cooldown-prevents thermal runaway while preserving system availability in industrial PLCs. |
Applications
| Industrial PC Power Rails | Factory Automation Sensors |
|---|---|
Use Scenario: Providing clean, sequenced 3.3-V and 5-V rails for CPU I/O, PCIe slots, and SATA controllers in fanless industrial PCs deployed in harsh environments. IC Role / Device Role / Timing Role: Primary POL regulator delivering 2-A continuous current with ±1% accuracy and PG signaling for BIOS-controlled power sequencing. Use Value: Eliminates need for external supervision ICs by integrating precise enable thresholds, power-good status, and thermal protection-reducing BOM count and board space. | Use Scenario: Powering distributed temperature, pressure, and vibration sensors in modular PLC backplanes with strict EMC and reliability requirements. IC Role / Device Role / Timing Role: Local 12-V-to-3.3-V conversion with HICCUP protection to survive short-circuited sensor cables and maintain uptime during field maintenance. Use Value: 18-µA quiescent current extends battery backup duration; DCS-Control ensures sub-50-mV load transients on 100-ms step changes-preserving sensor ADC accuracy. |
| Video Surveillance Cameras | Multi-Battery Portable Equipment |
Use Scenario: Supplying 1.2-V core and 1.8-V I/O rails to SoCs in outdoor IP cameras powered from 12-V PoE or solar-charged LiFePO₄ batteries. IC Role / Device Role / Timing Role: High-efficiency buck converter operating across 3–17 V input range, supporting 100% duty cycle during battery brownout conditions. Use Value: Maintains camera operation down to 3.2 V input (vs. 4.5 V for legacy converters), increasing usable battery capacity by ~18% in cold-weather deployments. | Use Scenario: Regulating power from 2S or 3S Li-ion packs (6–12.6 V) to 5-V USB peripherals and 3.3-V MCU subsystems in handheld test instruments. IC Role / Device Role / Timing Role: Adjustable-output step-down converter with MODE/FSEL pins enabling EMI-optimized layout (2.5 MHz) and low-noise operation (1.25 MHz + AEE). Use Value: Dual-frequency option allows designers to trade off component size vs. light-load efficiency-critical for devices with intermittent wake/sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62148RGXR | Includes active output discharge (via VOS pin); lacks HICCUP-uses constant-current foldback instead. | Better suited for systems requiring fast VOUT discharge during shutdown (e.g., FPGA configuration retention). | Select TPS62148RGXR only if active discharge is required; otherwise TPS62147RGXR offers superior fault recovery in persistent overload scenarios. |
| TPS62864ARGRR | Higher 4-A rating, 2.5-V to 5.5-V input, 1.8-MHz fixed frequency, lower 12-µA IQ, but no AEE or 100% duty cycle. | Optimized for low-voltage, high-current applications like AI edge accelerators-not compatible with 12-V input rails. | Choose TPS62864ARGRR only for sub-5.5-V systems needing >2 A; TPS62147RGXR remains optimal for 3–17 V industrial inputs with dynamic efficiency demands. |
Compared with TPS62148RGXR, TPS62147RGXR provides more robust fault handling in unattended equipment but lacks active discharge. Against TPS62864ARGRR, it trades peak current capability for wider input range, adaptive efficiency, and brownout resilience-making it uniquely suitable for 12-V-based industrial and surveillance platforms.
Availability
TPS62147RGXR is available at Aetrix Electronics and suitable for industrial PC power rails, factory automation sensors, and video surveillance cameras requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for TPS62147RGXR 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 ICs, with decades of expertise in high-reliability power conversion solutions.
The TPS62147RGXR belongs to TI's DCS-Control buck converter family, designed specifically for industrial and embedded applications demanding high accuracy, wide input range, and seamless light-load efficiency-without sacrificing transient performance or thermal robustness.
FAQ
What is the maximum output current capability of the TPS62147RGXR?
The TPS62147RGXR delivers 2 A of continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Its integrated MOSFETs feature 100 mΩ high-side and 39 mΩ low-side RDS(on), enabling this rating with ≤38.4°C/W junction-to-ambient thermal resistance in the RGX package. Peak current capability exceeds 3.5 A before HICCUP activation.
Does the TPS62147RGXR support adjustable output voltage?
Yes, the TPS62147RGXR supports fully adjustable output voltage from 0.8 V to 12 V using an external resistor divider connected to the FB pin. Its internal 0.7-V reference and ±1% accuracy in PWM mode allow precise setting-for example, 1.2 V ±12 mV or 5.0 V ±50 mV-without trimming or calibration.
How does the MODE pin affect operation of the TPS62147RGXR?
The MODE pin on the TPS62147RGXR selects between two distinct operating modes: pulled low enables automatic PWM/PFM transition with Automatic Efficiency Enhancement (AEE), optimizing efficiency across load range; pulled high forces fixed-frequency PWM mode, disabling AEE and locking switching frequency to 1.25 MHz or 2.5 MHz per FSEL setting-essential for EMI-sensitive designs.
What protection features are integrated into the TPS62147RGXR?
The TPS62147RGXR integrates HICCUP overcurrent protection (shutting down and retrying on sustained overload), thermal shutdown at 160°C (with 20°C hysteresis), input undervoltage lockout (2.8–3.0 V rising threshold), and 100% duty-cycle operation to sustain regulation during input brownout. It does not include active output discharge-this feature is exclusive to the TPS62148RGXR variant.
Can the TPS62147RGXR operate with input voltages below 3 V?
No, the TPS62147RGXR has a minimum specified input voltage of 3 V per its absolute maximum and recommended operating conditions. Operation below 3 V violates the datasheet specification and may result in unstable regulation, failure to start, or undefined behavior. For sub-3-V applications, consider TI's TPS6286x series or other low-input buck converters.
TPS62147RGXR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 11-VFQFN
- 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):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 12V
- Current - Output:
- 2A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 11-VQFN-HR (2x3)
TPS62147RGXR FAQ
1.How can I place an order for TPS62147RGXR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62147RGXR 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 TPS62147RGXR reliable?
The price and inventory of TPS62147RGXR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62147RGXR is usually 5 days.
3.What payment methods are accepted for TPS62147RGXR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62147RGXR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62147RGXR?
TPS62147RGXR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62147RGXR 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 TPS62147RGXR?
For technical support, including TPS62147RGXR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62147RGXR requirements.
6.How does Aetrix verify that TPS62147RGXR is sourced from the original manufacturer or authorized distributors?
All TPS62147RGXR 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 TPS62147RGXR meets industry standards.
7.What is the process for return or replacement of TPS62147RGXR?
All TPS62147RGXR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62147RGXR, 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 TPS62147RGXR part is unused and in its original packaging.
Return procedure for TPS62147RGXR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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