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Texas Instruments TPS54719RTER
- Part No.:
- TPS54719RTER
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS54719RTER.pdf
- Description:
- IC REG BUCK ADJ 7A 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:44,026
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Product details
Overview
TPS54719RTER from Texas Instruments is a 2.95-V to 6-V input, 7-A synchronous step-down DC/DC converter with integrated high- and low-side MOSFETs (30-mΩ typical RDS(on)), 0.6-V ±1.5% reference voltage, and adjustable 200-kHz to 2-MHz switching frequency. It delivers point-of-load regulation for FPGAs and microprocessors in space-constrained industrial and telecom power systems.
For engineers reviewing the TPS54719RTER datasheet, TPS54719RTER pinout, TPS54719RTER application, or TPS54719RTER equivalent, key selection criteria include its thermally enhanced 3-mm × 3-mm QFN-16 package, cycle-by-cycle current limit, pre-bias start-up capability, and open-drain PWRGD signal with 93–108% output voltage monitoring window.
Technical Context
The TPS54719RTER implements peak current-mode control with internal slope compensation to prevent subharmonic oscillation across duty cycles up to 100%. Its transconductance error amplifier (250 μA/V) drives the COMP pin for loop stability, while the BOOT-PH UVLO (2.1–2.75 V) enables extended dropout operation.
It integrates a boot recharge diode and supports slow-start/sequencing via SS/TR pin (2.4-μA internal charge current), UVLO adjustment via EN pin resistive divider, and frequency programming via RT pin (84-kΩ sets ~450 kHz). Thermal shutdown activates at 150–155°C with 7.5°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.95 V to 6 V - supports single-cell Li-ion, 3.3-V/5-V rails, and intermediate bus architectures. |
| Output Current | 7 A continuous - enables compact, high-density POL conversion without external current-sense resistors. |
| Voltage Reference | 0.6 V ±1.5% over –40°C to 140°C - ensures stable output regulation across industrial temperature range. |
| Switching Frequency | 200 kHz to 2 MHz - allows optimization of inductor size and efficiency; RT = 84 kΩ yields ~450 kHz. |
| MOSFET RDS(on) | High-side: 26–70 mΩ, Low-side: 26–70 mΩ (TJ = 25°C) - minimizes conduction loss at full load. |
| Quiescent Current | 455 μA typical (no load) - extends battery life in always-on systems; drops to 1 μA in shutdown. |
| Power-Good Threshold | 93% to 108% of VREF - provides reliable system sequencing and fault detection with 2% hysteresis. |
Pinout & Package
TPS54719RTER uses a thermally enhanced 3-mm × 3-mm, 16-pin QFN package (RTE) with exposed thermal pad (Pin 17) requiring multiple vias to PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1, 2, 16) | Input supply connection | Accepts 2.95–6 V; multiple pins reduce trace resistance and improve current handling. |
| PH (Pins 10, 11, 12) | Power switch node | Drain of low-side MOSFET / source of high-side MOSFET; connects to inductor and BOOT capacitor. |
| BOOT (Pin 13) | High-side gate drive supply | Requires 0.1-μF X7R/X5R ceramic capacitor to PH; monitored by internal UVLO for safe 100% duty cycle. |
| VSENSE (Pin 6) | Feedback input | Compares output voltage (via resistor divider) to 0.6-V reference; determines regulated output level. |
| COMP (Pin 7) | Error amplifier output | Connects external RC compensation network; drives PWM comparator with 250-μA/V transconductance. |
| EN (Pin 15) | Enable / UVLO control | Pull below 1.18 V to disable; internal 0.7-μA pullup enables floating operation and supports resistor-programmed UVLO. |
| SS/TR (Pin 9) | Slow-start / tracking input | 2.4-μA internal current charges external capacitor for controlled ramp-up; also supports power sequencing. |
| PWRGD (Pin 14) | Open-drain power-good | Asserts low when VOUT falls outside 93–108% of target; requires external pull-up for system monitoring. |
| RT (Pin 8) | Frequency setting | Resistor to GND sets switching frequency from 200 kHz to 2 MHz; 84 kΩ yields ~450 kHz. |
| GND (Pins 3, 4) | Power ground | Must be connected directly to thermal pad; forms low-inductance return path for high-frequency currents. |
| AGND (Pin 5) | Analog ground | Separate analog reference ground; electrically tied to GND near device to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual MOSFETs | 30-mΩ typical RDS(on) reduces conduction loss and eliminates external switch selection and layout complexity. |
| Pre-biased output start-up | Enables safe turn-on into existing output voltage - critical for hot-swap and multi-rail sequencing applications. |
| Adjustable frequency via RT pin | Supports 200-kHz–2-MHz range using single resistor - balances EMI, efficiency, and component size trade-offs. |
| Overvoltage protection | Disables high-side switch if VOUT exceeds 110% VREF, preventing damage during transient or feedback fault conditions. |
| Thermal foldback | Reduces switching frequency during overtemperature events - maintains regulation while limiting junction temperature rise. |
Applications
| FPGA Core Power Supply | ASIC Point-of-Load Regulation |
|---|---|
|
Use Scenario: Powers 1.0-V/1.2-V core rails of high-performance FPGAs in 5G baseband units. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise DC output with fast transient response. Use Value: Integrated 30-mΩ MOSFETs and 0.6-V ±1.5% reference ensure <±1% output accuracy under dynamic load steps up to 5 A/μs. |
Use Scenario: Supplies configurable I/O banks and memory interfaces in networking ASICs with strict voltage tolerance. IC Role / Device Role / Timing Role: Secondary POL converter synchronized via RT pin to avoid beat frequencies in multi-rail systems. Use Value: Adjustable 200-kHz–2-MHz switching frequency enables EMI compliance in dense PCB layouts with shared input filters. |
| Optical Transceiver Module | Industrial Edge Controller |
|
Use Scenario: Powers laser driver ICs and TIAs in SFP+/QSFP modules where thermal density and reliability are critical. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating from 3.3-V intermediate bus to 1.8-V/2.5-V analog supplies. Use Value: –40°C to 140°C operating junction temperature and thermal shutdown with hysteresis support uncooled module operation. |
Use Scenario: Provides isolated 3.3-V logic rail and 5-V peripheral supply in programmable logic controllers with long service life. IC Role / Device Role / Timing Role: Main DC/DC controller with PWRGD signaling to MCU for brown-out detection and graceful shutdown. Use Value: Open-drain PWRGD with 93–108% window and 2% hysteresis enables robust system-level power sequencing and fault isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 4.5–24-V input, 3-A output, fixed 500-kHz fSW; no RT pin or SS/TR; smaller 2-mm × 2-mm QFN. | Limited to lower current and higher input voltages; lacks sequencing and programmable frequency features. | Choose for cost-sensitive, low-power industrial sensors where 3-A output suffices and design simplicity is prioritized. |
| LM61480RQR | 3–36-V input, 8-A output, 2.1-MHz max fSW, integrated BOOT diode; 0.6-V reference with ±1% accuracy. | Broadens input range for 12-V/24-V systems but increases solution size; tighter reference improves precision at light loads. | Choose when upgrading from 6-V bus to wider-input industrial power rails and requiring improved light-load efficiency. |
Compared with MP2315DJ-LF-Z and LM61480RQR, the TPS54719RTER uniquely balances 7-A capability, 2.95–6-V input compatibility, and comprehensive sequencing/frequency control in a 3-mm × 3-mm footprint - making it optimal for compact, high-density 3.3-V/5-V POL designs.
Availability
TPS54719RTER is available at Aetrix Electronics and suitable for FPGA power delivery, optical transceiver modules, and industrial edge controllers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS54719RTER 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 90 years of innovation in high-reliability components.
The TPS54719RTER belongs to TI's SWIFT™ family of high-current synchronous buck converters, designed specifically for high-efficiency, space-constrained point-of-load applications in communications infrastructure and industrial automation.
FAQ
What is the maximum continuous output current supported by the TPS54719RTER?
The TPS54719RTER supports 7 A continuous output current under recommended operating conditions (TA ≤ 85°C, proper PCB thermal design). Its integrated 30-mΩ MOSFETs and 3-mm × 3-mm QFN package with exposed thermal pad enable this rating without external current-sense components. Derating applies above 85°C ambient or with insufficient copper area/vias.
Does the TPS54719RTER support start-up into a pre-biased output voltage?
Yes, the TPS54719RTER supports safe start-up into a pre-biased output. Its current-mode architecture and internal control logic prevent reverse current flow during initial turn-on, eliminating output voltage overshoot or latch-up. This feature is confirmed in the datasheet Section 7.3.8 and enables use in hot-swap and multi-rail sequencing applications.
How is the switching frequency set on the TPS54719RTER?
The switching frequency of the TPS54719RTER is set using an external resistor connected between the RT pin and GND. A value of 84 kΩ yields approximately 450 kHz; the full range spans 200 kHz to 2 MHz per the RT vs. fSW curve in Figure 6-13. No capacitor or additional components are required - frequency is resistor-programmable only.
What protection features does the TPS54719RTER include?
The TPS54719RTER includes cycle-by-cycle current limiting, thermal shutdown (150–155°C with 7.5°C hysteresis), BOOT-PH UVLO, overvoltage protection (disables high-side switch if VOUT > 110% VREF), and undervoltage lockout on VIN (2.4 V rising threshold). These are documented in Sections 1, 6.5, and 7.3 of the datasheet and operate independently without external components.
Can the TPS54719RTER be used for power supply sequencing with other regulators?
Yes, the TPS54719RTER supports multiple sequencing methods using its SS/TR, EN, and PWRGD pins. It can implement sequential start-up (PWRGD of one regulator driving EN of another), ratio-metric ramp-up (tying SS/TR pins), or tracking (resistive divider on SS/TR). These configurations are detailed in Figures 7-3 through 7-6 and Section 7.3.9 of the official datasheet.
TPS54719RTER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SWIFT™
- Package/Case:
- 16-WFQFN 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):
- 2.95V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 4.5V
- Current - Output:
- 7A
- Frequency - Switching:
- 200kHz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS54719RTER FAQ
1.How can I place an order for TPS54719RTER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS54719RTER 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 TPS54719RTER reliable?
The price and inventory of TPS54719RTER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54719RTER is usually 5 days.
3.What payment methods are accepted for TPS54719RTER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54719RTER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS54719RTER?
TPS54719RTER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS54719RTER 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 TPS54719RTER?
For technical support, including TPS54719RTER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54719RTER requirements.
6.How does Aetrix verify that TPS54719RTER is sourced from the original manufacturer or authorized distributors?
All TPS54719RTER 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 TPS54719RTER meets industry standards.
7.What is the process for return or replacement of TPS54719RTER?
All TPS54719RTER units undergo pre-shipment inspection (PSI). If there is an issue with TPS54719RTER, 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 TPS54719RTER part is unused and in its original packaging.
Return procedure for TPS54719RTER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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