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Texas Instruments TPS62093RGTT
- Part No.:
- TPS62093RGTT
- Manufacturer:
- Texas Instruments
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS62093RGTT.pdf
- Description:
- IC REG BUCK 1.8V 3A 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,169
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Product details
Overview
TPS62093RGTT from Texas Instruments is a 3-A synchronous step-down DC/DC converter with fixed 1.8 V output, DCS-Control™ topology, 2.5 V to 6 V input range, and 2.8 MHz/1.4 MHz selectable switching frequency-designed for processor core rails in battery-powered SSDs and netbooks.
For engineers reviewing the TPS62093RGTT datasheet, TPS62093RGTT pinout, TPS62093RGTT application, or TPS62093RGTT equivalent, key selection criteria include verified 95% peak efficiency at 3 A, 20 µA quiescent current in power save mode, hiccup-mode short-circuit protection, adjustable softstart via external capacitor, and output voltage tracking capability.
Technical Context
The TPS62093RGTT implements DCS-Control™-a hybrid regulation architecture combining hysteretic response speed with voltage-mode stability-to achieve seamless PWM-to-power-save-mode transition without output disturbance. It uses an internal 0.8 V reference and supports both fixed-output (1.8 V) and adjustable configurations via FB pin.
Its functional block includes integrated high-side (50 mΩ) and low-side (40 mΩ) MOSFETs, charge pump (CP/CN pins requiring 10 nF capacitor), power-good open-drain output (PG), and dual-frequency control (FREQ pin selects 2.8 MHz or 1.4 MHz). Output discharge (200 Ω) activates during shutdown, and thermal shutdown triggers at 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1.4% (PWM mode, 1 A load); enables direct powering of 1.8 V I/O or memory rails without external feedback resistors. |
| Input Voltage Range | 2.5 V to 6 V-supports single-cell Li-ion (2.7–4.2 V), USB 5 V, and wide-input industrial supplies without pre-regulation. |
| Max Output Current | 3 A continuous-sufficient for mid-tier application processors or multi-lane SSD controllers with transient headroom. |
| Switching Frequency | Selectable 2.8 MHz (low EMI, small passives) or 1.4 MHz (higher light-load efficiency); set via FREQ pin logic level. |
| Quiescent Current | 20 µA in power save mode-extends battery runtime in standby states for portable devices. |
| Efficiency Peak | 95% at 3 A, VIN = 3.7 V, VOUT = 1.8 V-minimizes thermal dissipation in compact QFN packages. |
| Thermal Shutdown | 150°C junction temperature with 20°C hysteresis-prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
TPS62093RGTT is housed in a thermally enhanced 16-pin QFN (3.0 mm × 3.0 mm, 0.4 mm pitch) with exposed thermal pad soldered to AGND for optimal heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 SW | Power switch node | Connects to inductor and output capacitor; carries high di/dt switching current-requires tight layout and Kelvin connection to minimize noise. |
| 3 FREQ | Frequency select input | Logic-low = 2.8 MHz (smaller L/C), logic-high = 1.4 MHz (higher light-load efficiency); internal 400 kΩ pull-down enables default 2.8 MHz if left floating. |
| 4 PG | Open-drain power-good indicator | Sinks ≤1 mA when VOUT < 90% nominal; requires external pull-up to PVIN or system rail ≤VIN; signals valid regulation to host controller. |
| 5 FB | Feedback input | Internally tied to 0.8 V reference; for fixed-output TPS62093RGTT, connect directly to AGND to improve thermal performance and reduce leakage. |
| 6 AGND | Analog ground reference | Separate ground plane for sensitive analog circuitry (error amp, reference, softstart); must be connected to PGND at single point near thermal pad. |
| 7 CP / 8 CN | Charge pump terminals | Require 10 nF ceramic capacitor between CP and CN to drive high-side MOSFET gate; no other connections permitted. |
| 9 SS | Softstart/voltage tracking input | Accepts external capacitor (e.g., 10 nF → ~1.3 ms ramp) or driven by another rail for ratiometric sequencing; clamped to 7 V max. |
| 10 AVIN | Bias supply input | Provides internal LDO bias; must be connected to same source as PVIN or filtered version; decoupling recommended. |
| 11,12 PVIN | Main power input | High-current input path for power stage; requires low-ESR bulk capacitance (≥10 µF) placed close to pins 11/12 and SW. |
| 13 EN | Enable control | Active-high logic input; internal 400 kΩ pull-down ensures safe disable on power-up; drives 200 Ω discharge path when low. |
| 14,15 PGND | Power ground return | High-current return for MOSFETs and inductor; must be solid copper pour connected to thermal pad and isolated from AGND except at single point. |
| 16 VOS | Output voltage sense | Direct Kelvin connection to regulated output; enables accurate remote sensing and activates 200 Ω discharge path during shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10 µs load transient response with <1% undershoot/overshoot while maintaining stable operation across 0–3 A load range. |
| 100% duty cycle operation | Extends usable battery life by sustaining regulation down to VIN = VOUT + IOUT × (RDS(on) + RL), e.g., ~1.85 V at 3 A with typical 50 mΩ RDS(on). |
| Hiccup-mode short-circuit protection | Triggers after 32 overcurrent events, then auto-retries every 66 µs-prevents thermal runaway during sustained shorts without latch-off. |
| Adjustable softstart | Capacitor on SS pin sets ramp time (e.g., 47 nF → ~5.9 ms), preventing inrush current into large output capacitors (>100 µF) during cold start. |
| Output voltage tracking | SS pin accepts external voltage source to coordinate startup/shutdown sequencing with other rails (e.g., 1.2 V core before 1.8 V I/O). |
Applications
| SSD Power Management | Netbook Processor Core Supply |
|---|---|
Use Scenario: Powers NAND flash controller and DRAM cache in SATA or NVMe solid-state drives requiring clean, fast-transient 1.8 V I/O rails. IC Role / Device Role / Timing Role: Primary buck regulator delivering regulated 1.8 V at up to 3 A with <10 µs transient response and hiccup-mode fault containment. Use Value: Eliminates need for external tracking circuits; DCS-Control™ maintains ±1.4% output accuracy across temperature and load while enabling compact 3 mm × 3 mm layout. | Use Scenario: Supplies 1.8 V I/O domain for Intel Atom or ARM-based netbook SoCs where battery life and board space are critical constraints. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter operating in 2.8 MHz mode to minimize inductor size and output ripple in thin-profile designs. Use Value: 20 µA quiescent current extends standby time; 100% duty cycle extends usable Li-ion range from 4.2 V down to ~1.85 V under full load. |
| Hard Disk Drive (HDD) Interface | Battery-Powered Industrial Controller |
Use Scenario: Provides regulated 1.8 V for SATA PHY and buffer memory in 2.5-inch HDDs with variable input from buck-boost front-end. IC Role / Device Role / Timing Role: Secondary regulator accepting 2.5–6 V input, delivering precise 1.8 V with PG signaling to enable safe spin-up sequence coordination. Use Value: Power-good output synchronizes with host controller boot process; output discharge prevents floating rail during sleep transitions. | Use Scenario: Powers FPGA I/O banks or microcontroller peripherals in portable test equipment requiring robust operation across 2.7–5.5 V battery input. IC Role / Device Role / Timing Role: Fixed-output buck converter with thermal shutdown and UVLO ensuring reliable operation in unregulated battery environments. Use Value: 150°C thermal shutdown and 2.2 V UVLO prevent malfunction during deep discharge; QFN package supports convection cooling in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62095RGTT | Pin-to-pin compatible; identical 1.8 V fixed output but rated for 4 A max output current and higher thermal performance (RθJA = 40°C/W vs 47°C/W). | Supports higher-current loads (e.g., multi-core SoCs) without derating; requires same PCB footprint but improved thermal margin. | Select TPS62095RGTT when >3 A peak current or >85°C ambient operation is required; otherwise TPS62093RGTT suffices for 3 A steady-state. |
| MP2143GQ-Z | Monolithic 3 A buck with 2.5–5.5 V input, 1.8 V fixed output, 2 MHz switching, but lacks DCS-Control™, PG output, and output discharge; quiescent current 30 µA. | No power-good signaling or voltage tracking; less precise load transient response; suitable only for non-critical, cost-sensitive applications. | Choose MP2143GQ-Z only if PG, tracking, and sub-10 µs transients are unnecessary and BOM cost is primary constraint. |
Compared with TPS62095RGTT, the TPS62093RGTT offers identical functionality at 3 A with slightly lower thermal margin; versus MP2143GQ-Z, it delivers superior transient performance, system-level sequencing support, and integrated fault protection-justifying its use in reliability-critical portable electronics.
Availability
TPS62093RGTT is available at Aetrix Electronics and suitable for SSD power management, netbook processor core supply, and battery-powered industrial controller applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62093RGTT 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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer markets.
The TPS6209x product line was developed specifically for high-efficiency, space-constrained battery-powered systems-emphasizing ultra-low quiescent current, fast transient response, and seamless power-save-mode operation in portable computing and storage devices.
FAQ
What is the maximum continuous output current supported by the TPS62093RGTT?
The TPS62093RGTT is rated for 3 A continuous output current under recommended operating conditions (TA ≤ 85°C, proper PCB thermal design). Its internal high-side MOSFET has 50 mΩ RDS(on), and hiccup-mode current limiting activates at ~4.6 A nominal-ensuring safe operation within this 3 A rating across input voltage and temperature ranges.
Does the TPS62093RGTT require external feedback resistors for its 1.8 V output?
No, the TPS62093RGTT is a fixed-output variant-its 1.8 V regulation is internally set and does not require external feedback resistors. The FB pin should be connected directly to AGND to improve thermal performance and reduce leakage current; doing so disables the adjustable feedback path while preserving full specification compliance.
How does the FREQ pin affect efficiency and component selection in the TPS62093RGTT?
The FREQ pin selects between 2.8 MHz (FREQ = GND) and 1.4 MHz (FREQ = VIN). At 2.8 MHz, smaller inductors (e.g., 0.47 µH) and capacitors can be used, improving transient response and reducing output ripple-but light-load efficiency decreases. At 1.4 MHz, quiescent current drops further and larger inductors (e.g., 1 µH) yield better light-load efficiency, albeit with slower transients and higher ripple unless output capacitance is increased.
Can the TPS62093RGTT be used in 100% duty cycle mode, and what is the minimum input voltage for regulation?
Yes, the TPS62093RGTT supports 100% duty cycle operation to maximize battery utilization. Minimum input voltage for regulation is calculated as VIN(min) = VOUT + IOUT × (RDS(on) + RL). With 3 A load, 50 mΩ high-side RDS(on), and 10 mΩ inductor DCR, VIN(min) ≈ 1.8 V + 3 A × 60 mΩ = 1.98 V-enabling operation down to near-dead battery voltage in Li-ion systems.
What is the purpose of the VOS pin on the TPS62093RGTT, and how should it be connected?
The VOS pin provides Kelvin sensing of the output voltage for improved regulation accuracy and enables the internal 200 Ω output discharge path during shutdown. It must be connected directly to the regulated 1.8 V output node-preferably at the load side of the output capacitor-to reject PCB trace IR drop. Leaving VOS unconnected degrades load regulation and disables automatic output discharge.
TPS62093RGTT 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):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A
- Frequency - Switching:
- 2.8MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS62093RGTT FAQ
1.How can I place an order for TPS62093RGTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62093RGTT 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 TPS62093RGTT reliable?
The price and inventory of TPS62093RGTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62093RGTT is usually 5 days.
3.What payment methods are accepted for TPS62093RGTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62093RGTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62093RGTT?
TPS62093RGTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62093RGTT 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 TPS62093RGTT?
For technical support, including TPS62093RGTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62093RGTT requirements.
6.How does Aetrix verify that TPS62093RGTT is sourced from the original manufacturer or authorized distributors?
All TPS62093RGTT 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 TPS62093RGTT meets industry standards.
7.What is the process for return or replacement of TPS62093RGTT?
All TPS62093RGTT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62093RGTT, 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 TPS62093RGTT part is unused and in its original packaging.
Return procedure for TPS62093RGTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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