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Texas Instruments TPS62150RGTR
- Part No.:
- TPS62150RGTR
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62150RGTR.pdf
- Description:
- IC REG BUCK ADJ 1A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:12,871
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Product details
Overview
TPS62150RGTR from Texas Instruments is an adjustable-output, synchronous step-down DC-DC converter optimized for high-power-density applications. It operates from 3 V to 17 V input, delivers up to 1 A continuous output current, regulates output voltage from 0.9 V to 6 V via external feedback resistors, and features DCS-Control™ topology for fast transient response-used in solid-state drives and embedded systems requiring compact, efficient POL conversion.
For engineers reviewing the TPS62150RGTR datasheet, TPS62150RGTR pinout, TPS62150RGTR application, or TPS62150RGTR equivalent, key selection criteria include its 2.5 MHz (or 1.25 MHz) selectable switching frequency, 17 µA quiescent current in power-save mode, seamless PWM-to-PSM transition, 100% duty-cycle capability for battery-end-of-life operation, and integrated power-good and thermal/short-circuit protection.
Technical Context
The TPS62150RGTR implements DCS-Control™ topology-a hybrid regulation scheme combining voltage-mode stability with hysteretic-like transient response-enabling direct ac loop control of output voltage and constant-frequency PWM operation under medium/heavy loads. Its internal error amplifier and fast comparator stage respond to output deviations within nanoseconds, supporting tight dc regulation (±1.7% initial FB accuracy) and <1% load regulation over 0–1 A.
It supports dual operating modes: fixed-frequency PWM (2.5 MHz typical, FSW = low) for low ripple and fast response, and automatic power-save mode (frequency scales linearly with load) for >85% efficiency at 1 mA. Seamless mode transitions avoid output voltage glitches, and 100% duty-cycle operation sustains regulation down to VIN ≈ VOUT + IOUT × RDS(on)_HS + IOUT × R_L.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 17 V - supports single/multi-cell Li-ion batteries and standard 12-V intermediate rails without external pre-regulation. |
| Output Current | Up to 1 A continuous - sufficient for powering FPGA I/O banks, microcontroller cores, or SSD controller ICs. |
| Output Voltage Range | 0.9 V to 6 V (adjustable) - set via external resistor divider on FB pin; enables precise core voltage scaling for diverse SoCs. |
| Quiescent Current | 17 µA (typ.) - maintains high light-load efficiency in always-on subsystems like real-time clocks or sensor interfaces. |
| Switching Frequency | Selectable: 2.5 MHz (FSW = low) or 1.25 MHz (FSW = high) - trade-off between small inductor size (2.2 µH @ 2.5 MHz) and lower switching loss. |
| Power-Good Output | Open-drain PG with 92–98% rising threshold - provides reliable rail sequencing signal for multi-rail systems without external monitoring circuitry. |
| Thermal Protection | 160°C shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
TPS62150RGTR is housed in a thermally enhanced 3-mm × 3-mm VQFN-16 package (RGT) with exposed thermal pad soldered to AGND/PGND for optimal heat dissipation and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2,3 SW | Switch Node | Connects to internal high/low-side MOSFETs; requires low-inductance path to inductor and output capacitor to minimize ringing and EMI. |
| 4 PG | Power-Good Output | Open-drain status signal indicating VOUT ≥ 92% nominal; requires external pullup to ≤7 V for system sequencing. |
| 5 FB | Feedback Input | Resistive divider midpoint; sets output voltage (VOUT = 0.8 V × (1 + R1/R2)); connects directly to AGND on fixed-output variants. |
| 6 AGND | Analog Ground | Reference for control circuitry; must be tied to exposed thermal pad and common ground plane to reduce noise coupling. |
| 7 FSW | Frequency Select | Pull low for 2.5 MHz (compact design), high for 1.25 MHz (higher efficiency); internal 400-kΩ pulldown ensures default high-frequency mode. |
| 8 DEF | Output Voltage Scaling | Pull low for nominal VOUT, high for +5% margining; enables hardware-based voltage tolerance testing without firmware changes. |
| 9 SS/TR | Soft-Start / Tracking | External capacitor sets startup ramp time; also accepts external voltage for supply tracking in multi-rail systems. |
| 10 AVIN | Analog Supply | Bias for control logic; connect to same source as PVIN but route separately to minimize noise injection into sensitive analog blocks. |
| 11,12 PVIN | Power Supply Input | High-current path for power stage; requires low-ESR bulk capacitance near pins to suppress input ripple and prevent UVLO triggering. |
| 13 EN | Enable Input | Active-high logic; internal 400-kΩ pulldown ensures safe default disable; used for power sequencing with other rails. |
| 14 VOS | Voltage Sense | Direct connection to output for improved regulation accuracy; reduces sensitivity to PCB trace resistance and layout parasitics. |
| 15,16 PGND | Power Ground | Return path for high-current switches; must be connected to exposed thermal pad and partitioned from AGND at single-point star ground. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Topology | Combines fast transient response (<10 µs recovery from 50% load step) with stable dc regulation-eliminates need for external compensation components. |
| Programmable Soft Start | External capacitor on SS/TR pin controls monotonic startup slope, preventing inrush current damage to input capacitors and enabling pre-biased output start-up. |
| Seamless Power-Save Mode | No audible switching noise or output voltage dip during PWM-to-PSM transition-critical for noise-sensitive RF and audio subsystems. |
| 100% Duty-Cycle Operation | Maintains regulation when VIN drops to ~15% above VOUT-extends runtime in battery-powered applications nearing end-of-discharge. |
| Integrated Protection | Includes undervoltage lockout (2.7 V threshold), thermal shutdown (160°C), short-circuit current limiting (1.7 A typ.), and open-drain PG for fault reporting. |
Applications
| Solid-State Drives (SSD) | Embedded Systems |
|---|---|
Use Scenario: Powering NAND flash controller and DRAM cache in M.2 NVMe SSDs with tight space constraints and thermal limits. IC Role / Device Role / Timing Role: Primary POL regulator converting 12 V or 5 V system rail to 1.2 V/1.8 V/3.3 V core/memory voltages. Use Value: 2.5 MHz switching enables use of 2.2 µH inductors and 22 µF ceramic output caps-reducing total solution footprint by >40% vs. 500-kHz converters. | Use Scenario: Supplying configurable logic (FPGA/CPLD) and ARM Cortex-M microcontrollers in industrial gateways and edge nodes. IC Role / Device Role / Timing Role: Adjustable buck converter providing dynamically scaled core voltage based on processing load and thermal headroom. Use Value: DEF pin enables ±5% voltage margining for validation across process/voltage/temperature corners without changing BOM or layout. |
| Mobile Computing | LDO Replacement |
Use Scenario: Replacing inefficient linear regulators in tablet SoC power trees where battery life and thermal performance are critical. IC Role / Device Role / Timing Role: High-efficiency step-down converter delivering 1.1 V @ 1 A to application processor cores with minimal heat generation. Use Value: 17 µA quiescent current and seamless PSM maintain >85% efficiency at 1 mA load-extending standby time beyond LDO capabilities. | Use Scenario: Upgrading legacy 3.3 V LDO-based supplies in point-of-sale terminals and data terminals to improve efficiency and reduce board temperature. IC Role / Device Role / Timing Role: Synchronous buck replacing dropout-prone LDOs on 12 V input rails, delivering regulated 3.3 V/1 A output. Use Value: 100% duty-cycle mode sustains regulation even as 12 V rail sags to 3.6 V-avoiding brownouts during peak current transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | Same 3×3 mm VQFN-16 package and DCS-Control™ topology, but 3–6 V input range and 3-A output current. | Designed for lower-input-voltage systems (e.g., single Li-ion); higher current capability suits more demanding SoCs. | Select when input rail is ≤6 V and >1 A output is required; not suitable for 12-V or 17-V inputs. |
| TPS62140ARGTR | Identical 3–17 V input and 1-A rating, but fixed 3.3 V output and different PG logic (active-low in shutdown). | Eliminates FB resistor network for simplified 3.3 V designs; PG behavior differs during enable/disable transitions. | Choose for cost-sensitive 3.3 V-only applications where voltage adjustability is unnecessary and PG timing compatibility is verified. |
Compared with TPS62150RGTR, TPS62130ARGTR offers higher output current but narrower input range-making it unsuitable for 12-V systems-while TPS62140ARGTR trades adjustability for fixed 3.3 V output and altered power-good signaling, reducing design flexibility but simplifying BOM for dedicated rails.
Availability
TPS62150RGTR is available at Aetrix Electronics and suitable for solid-state drives, embedded systems, and mobile computing applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62150RGTR 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 company specializing in analog, embedded processing, and power management technologies, with decades of leadership in high-efficiency DC-DC conversion.
The TPS6215x product line was designed specifically for high-density point-of-load applications in space-constrained, thermally sensitive systems such as SSDs, tablets, and industrial controllers-emphasizing small solution size, low quiescent current, and robust protection.
FAQ
What is the recommended inductor value for TPS62150RGTR when operating at 2.5 MHz?
The recommended inductor value for TPS62150RGTR at 2.5 MHz is 2.2 µH. This value balances peak current ripple (typically ~30% of full load), efficiency (>90% at 1 A), and physical size. TI's reference design uses a shielded 2.2 µH, 2.5-A inductor with ≤80 mΩ DCR; using values outside 1.5–3.3 µH may degrade transient response or increase output voltage ripple.
Does TPS62150RGTR support pre-biased output startup?
Yes, TPS62150RGTR supports monotonic pre-biased output startup. When enabled into a pre-charged output, both high- and low-side FETs remain off until the internal soft-start ramp exceeds the existing VOUT, preventing reverse current flow and ensuring controlled voltage rise. This behavior is confirmed in Section 8.3.2 of the datasheet and validated in typical application schematics.
How does the DEF pin affect output voltage accuracy on TPS62150RGTR?
The DEF pin on TPS62150RGTR shifts the internal reference by +5% when pulled high, resulting in VOUT = 1.05 × nominal (e.g., 3.3 V becomes 3.465 V). Accuracy remains within ±1.7% of the adjusted target because the same FB reference (0.8 V) and resistor-divider ratio apply-only the effective setpoint changes. This enables hardware-level margin testing without altering feedback components.
What is the maximum junction temperature and thermal resistance of TPS62150RGTR?
TPS62150RGTR has a maximum junction temperature (TJ) of 150°C and a junction-to-ambient thermal resistance (RθJA) of 45°C/W in the standard 3-mm × 3-mm VQFN-16 package with JEDEC-standard 2-layer board layout. With proper thermal pad soldering to a 1-in² copper area, RθJB drops to 17.4°C/W-enabling 1 A continuous operation at ambient temperatures up to 85°C without forced airflow.
Can TPS62150RGTR operate with only PVIN connected and AVIN left unconnected?
No, TPS62150RGTR requires both PVIN and AVIN to be connected to the same input source. AVIN powers the analog control circuitry-including error amplifier, comparators, and bias generators-while PVIN supplies the power stage. Leaving AVIN floating violates absolute maximum ratings, risks erratic operation, and may cause failure due to insufficient gate drive or unstable feedback. The datasheet explicitly states "Connect AVIN to same source as PVIN."
TPS62150RGTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-VFQFN 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):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62150RGTR FAQ
1.How can I place an order for TPS62150RGTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62150RGTR 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 TPS62150RGTR reliable?
The price and inventory of TPS62150RGTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62150RGTR is usually 5 days.
3.What payment methods are accepted for TPS62150RGTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62150RGTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62150RGTR?
TPS62150RGTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62150RGTR 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 TPS62150RGTR?
For technical support, including TPS62150RGTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62150RGTR requirements.
6.How does Aetrix verify that TPS62150RGTR is sourced from the original manufacturer or authorized distributors?
All TPS62150RGTR 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 TPS62150RGTR meets industry standards.
7.What is the process for return or replacement of TPS62150RGTR?
All TPS62150RGTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62150RGTR, 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 TPS62150RGTR part is unused and in its original packaging.
Return procedure for TPS62150RGTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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