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Texas Instruments TPS62153RGTT
- Part No.:
- TPS62153RGTT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62153RGTT.pdf
- Description:
- IC REG BUCK 5V 1A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:665
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Product details
Overview
TPS62153RGTT from Texas Instruments is a synchronous step-down DC-DC converter optimized for high-power-density applications. It delivers up to 1-A continuous output current, supports input voltage range of 3 V to 17 V, and provides fixed 5.0-V output with ±1% initial accuracy (at FB pin), operating at 2.5 MHz typical switching frequency in DCS-Control™ topology. It serves as a POL supply in battery-powered embedded systems and server point-of-load rails.
For engineers reviewing the TPS62153RGTT datasheet, TPS62153RGTT pinout, TPS62153RGTT application, or TPS62153RGTT equivalent, key selection considerations include its 5.0-V fixed output, 17 µA quiescent current in power-save mode, open-drain power-good output, seamless PWM-to-power-save transition, and thermal shutdown at 160°C - all within a 3-mm × 3-mm VQFN-16 package with exposed thermal pad.
Technical Context
The TPS62153RGTT implements DCS-Control™ topology, combining voltage-mode and hysteretic control to achieve fast transient response and stable regulation with small external components. Its internal error amplifier and direct comparator feedback loop enable tight DC load regulation and immediate dynamic response without external compensation.
It operates in three functional modes: PWM mode (2.5 MHz or 1.25 MHz selectable via FSW pin), power-save mode (frequency scales linearly with load), and 100% duty-cycle mode for ultra-low VIN–VOUT differentials. Protection includes overtemperature shutdown (160°C, 20°C hysteresis), undervoltage lockout (2.7 V threshold, 200 mV hysteresis), and cycle-by-cycle current limiting (1.7 A typical high-side limit).
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. |
| Output Voltage | Fixed 5.0 V - no external feedback resistors required; ±1% initial accuracy at FB pin enables precise downstream logic rail generation. |
| Max Output Current | 1 A continuous - sufficient for powering SoCs, FPGAs, and SSD controllers in compact designs. |
| Quiescent Current | 17 µA (typ.) - maintains high light-load efficiency without compromising standby power in always-on systems. |
| Switching Frequency | 2.5 MHz (FSW = low) - enables use of ≤2.2-µH inductors and 22-µF ceramic output capacitors for minimal board area. |
| Thermal Shutdown | 160°C (typ.), 20°C hysteresis - protects against sustained overload or poor PCB thermal design while enabling automatic recovery. |
| Power-Good Output | Open-drain PG with 92–98% rising threshold - provides reliable system sequencing signal for microcontrollers and FPGA configuration. |
Pinout & Package
TPS62153RGTT is housed in a 16-pin VQFN package (RGT suffix) measuring 3.00 mm × 3.00 mm with an exposed thermal pad on the bottom for enhanced thermal dissipation and mechanical reliability. The pad must be soldered to AGND, PGND, and the system ground plane per TI layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2,3 | SW | Switch node - connects internal high/low-side MOSFETs to external inductor; requires low-inductance routing to minimize EMI and switching losses. |
| 4 | PG | Open-drain power-good - sinks up to 2 mA; requires external pullup to ≤7 V for system sequencing or fault indication. |
| 5 | FB | Feedback reference - internally tied to fixed 5.0-V divider; connect to AGND for optimal thermal performance per datasheet recommendation. |
| 6 | AGND | Analog ground - must be connected directly to exposed thermal pad and common ground plane to stabilize control loop and reduce noise coupling. |
| 7 | FSW | Frequency select - low = 2.5 MHz (default), high = 1.25 MHz; internal 400-kΩ pulldown ensures safe startup if left floating. |
| 8 | DEF | Output voltage scaling - low = 5.0 V nominal, high = 5.25 V; internal pulldown prevents unintended voltage margining. |
| 9 | SS/TR | Soft-start/tracking - external capacitor sets output ramp time; supports monotonic start-up into pre-biased rails and voltage tracking. |
| 10 | AVIN | Analog supply - powers control circuitry; tie to same source as PVIN to avoid supply mismatch and instability. |
| 11,12 | PVIN | Power-stage supply - feeds high-current MOSFET drivers; requires low-ESR bulk capacitance near pins 11/12. |
| 13 | EN | Enable input - high = active, low = shutdown (<2 µA IQ); internal 400-kΩ pulldown ensures default off-state if unconnected. |
| 14 | VOS | Output voltage sense - connects to control loop; improves regulation accuracy by sensing at load rather than IC pin. |
| 15,16 | PGND | Power ground - carries high di/dt currents; must be connected directly to exposed thermal pad and solid ground plane to minimize voltage spikes. |
| Exposed Pad | Thermal & Ground | Common connection for AGND, PGND, and system ground - essential for thermal management (RθJB = 17.4°C/W) and EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <1% output voltage deviation under 1-A load transients while using only 22-µF ceramic output capacitance - eliminates need for large electrolytics or complex compensation. |
| Seamless power-save mode | Maintains >85% efficiency at 1-mA load without audible switching noise or output voltage droop - critical for always-on IoT sensor nodes. |
| 100% duty-cycle operation | Supports regulation down to VIN = VOUT + IOUT × RDS(on)_HS (≈5.15 V at 1 A) - extends runtime in Li-ion battery applications nearing end-of-discharge. |
| Programmable soft-start | External capacitor on SS/TR pin sets controlled output ramp (e.g., 10-nF ≈ 2-ms rise), preventing inrush current damage to input capacitors and upstream regulators. |
| Integrated protection suite | Combines thermal shutdown (160°C), UVLO (2.7 V), short-circuit current limiting (1.7 A), and open-drain PG - reduces BOM count and simplifies system-level fault handling. |
Applications
| Server Point-of-Load Supply | Solid-State Drive Power |
|---|---|
Use Scenario: Delivering clean, regulated 5.0-V power to NVMe controller and NAND flash interface circuitry in enterprise SSDs. IC Role / Device Role / Timing Role: Primary buck regulator providing stable 5.0-V rail with fast transient response to handle bursty NAND read/write cycles. Use Value: DCS-Control™ ensures <50-mV output deviation during 1-A load steps, minimizing data corruption risk and eliminating need for additional LDO post-regulation. | Use Scenario: Generating 5.0-V supply for PCIe Gen4 SSDs operating from 12-V backplane or dual-cell Li-ion battery packs. IC Role / Device Role / Timing Role: High-efficiency POL converter supporting wide input range (3–17 V) and seamless transition between battery and adapter power sources. Use Value: 17-µA quiescent current and 100% duty-cycle mode extend battery life by >15% compared to legacy 500-µA solutions in low-power idle states. |
| Embedded System Core Rail | Mobile PC USB-C PD Interface |
Use Scenario: Powering ARM Cortex-A series SoCs and DDR memory interfaces in industrial gateways and edge AI modules. IC Role / Device Role / Timing Role: Main system regulator delivering 1-A 5.0-V rail with programmable soft-start and power-good signaling for coordinated boot sequencing. Use Value: PG output enables reliable reset assertion to SoC before firmware execution begins, preventing initialization failures in cold-start conditions. | Use Scenario: Providing isolated 5.0-V bus power in USB-C PD sink applications where input may vary from 5 V (USB-A) to 20 V (PD contract). IC Role / Device Role / Timing Role: Input-flexible buck converter accepting full USB-C PD voltage range while maintaining fixed 5.0-V output for legacy peripherals. Use Value: 3–17 V input range and 2.5-MHz switching allow single-component solution across USB-C PD profiles - reducing BOM cost vs. multi-rail discrete designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62152RGTT | Fixed 3.3-V output; identical package, pinout, and feature set except output voltage and DEF/PG logic. | Used where 3.3-V logic rail is required instead of 5.0 V; not interchangeable without redesigning feedback or load compatibility. | Select TPS62152RGTT only when system requires 3.3-V output and shares same thermal/mechanical constraints. |
| TPS62140RGTT | Adjustable output (0.9–6 V), 1-A rating, same 3×3-mm QFN package but different FB/DEF/SS pin functions and no PG output. | Used in designs requiring programmable output or tighter voltage margining; lacks power-good signaling for sequencing-critical systems. | Choose TPS62140RGTT only when adjustable output and absence of PG are acceptable trade-offs for design flexibility. |
Compared with TPS62153RGTT, TPS62152RGTT offers identical performance at 3.3 V but cannot replace it in 5-V systems, while TPS62140RGTT sacrifices fixed-voltage precision and PG functionality for adjustability - making TPS62153RGTT optimal for cost-sensitive, sequencing-dependent 5-V POL applications.
Availability
TPS62153RGTT is available at Aetrix Electronics and suitable for server point-of-load supplies, solid-state drive power, and embedded system core rails requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62153RGTT 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 and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and computing markets.
The TPS6215x product line was designed specifically for high-density, high-efficiency point-of-load conversion in space-constrained applications such as SSDs, mobile PCs, and microservers - emphasizing low quiescent current, fast transient response, and robust thermal performance in 3-mm × 3-mm packages.
FAQ
What is the output voltage tolerance of the TPS62153RGTT under full load and temperature range?
The TPS62153RGTT provides a fixed 5.0-V output with ±1% initial accuracy at the FB pin (785.6–814.4 mV reference). Over –40°C to +125°C junction temperature and full 1-A load, total output variation including line/load regulation remains within ±2.5% (4.875–5.125 V) when using recommended external components and layout per SLVSAL5E.
Does the TPS62153RGTT require external feedback resistors to set its output voltage?
No, the TPS62153RGTT does not require external feedback resistors. It is a fixed-output variant with an internal resistor divider configured for 5.0 V. The FB pin is internally connected to this divider; TI recommends connecting FB directly to AGND to improve thermal performance and stability, as stated in the Pin Functions table.
Can the TPS62153RGTT operate with an input voltage lower than 5.0 V?
Yes, the TPS62153RGTT supports input voltages as low as 3.0 V. However, when VIN drops near VOUT (e.g., below ~5.15 V at 1-A load), it enters 100% duty-cycle mode to maintain regulation. Below the undervoltage lockout threshold of 2.7 V (with 200-mV hysteresis), the device shuts down and disables switching.
How does the power-good (PG) output behave during startup and fault conditions in the TPS62153RGTT?
In the TPS62153RGTT, the PG pin is open-drain and goes high-impedance when EN is low, during UVLO, or under thermal shutdown. It asserts high (via external pullup) only when VOUT reaches 92–98% of nominal 5.0 V and remains enabled. During faults like overtemperature or input dropout, PG returns to high-impedance - enabling clean system reset without active discharge.
Is the TPS62153RGTT pin-compatible with other devices in the TPS6215x family?
Yes, the TPS62153RGTT shares identical pinout, package (VQFN-16 RGT), and footprint with all TPS6215x variants including TPS62150, TPS62151, TPS62152, and TPS62150A. This allows drop-in replacement for different output voltages or PG logic configurations, provided external circuitry (e.g., pullups, capacitors) matches the selected variant's requirements.
TPS62153RGTT 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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- 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)
TPS62153RGTT FAQ
1.How can I place an order for TPS62153RGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62153RGTT 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 TPS62153RGTT reliable?
The price and inventory of TPS62153RGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62153RGTT is usually 5 days.
3.What payment methods are accepted for TPS62153RGTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62153RGTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62153RGTT?
TPS62153RGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62153RGTT 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 TPS62153RGTT?
For technical support, including TPS62153RGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62153RGTT requirements.
6.How does Aetrix verify that TPS62153RGTT is sourced from the original manufacturer or authorized distributors?
All TPS62153RGTT 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 TPS62153RGTT meets industry standards.
7.What is the process for return or replacement of TPS62153RGTT?
All TPS62153RGTT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62153RGTT, 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 TPS62153RGTT part is unused and in its original packaging.
Return procedure for TPS62153RGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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