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Texas Instruments TLV62585RWTT
- Part No.:
- TLV62585RWTT
- Manufacturer:
- Texas Instruments
- Package:
- 12-PowerVFQFN
- Datasheet:
-
TLV62585RWTT.pdf
- Description:
- IC REG BUCK ADJ 3A 12VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:12,453
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Product details
Overview
TLV62585RWTT from Texas Instruments is a 3-A synchronous buck DC-DC converter in a 2-mm × 2-mm QFN-12 package, delivering up to 95% efficiency at 1.8 V/3 A output with 2.5–5.5 V input range, 1.5-MHz fixed-frequency PWM operation, and integrated 56 mΩ/32 mΩ power switches for compact point-of-load power delivery in space-constrained battery-powered systems.
For engineers reviewing the TLV62585RWTT datasheet, TLV62585RWTT pinout, TLV62585RWTT application, or TLV62585RWTT equivalent, key selection considerations include its adaptive off-time peak-current control architecture, Power Save Mode for light-load efficiency, 100% duty cycle low-dropout capability, soft-start timing (900 µs), and open-drain power-good output with 95%/90% voltage thresholds.
Technical Context
The TLV62585RWTT employs an adaptive off-time peak-current control scheme that maintains stable ~1.5-MHz switching frequency across varying VIN, VOUT, and load conditions. Its internal compensation eliminates external compensation components, while the integrated high-side (56 mΩ) and low-side (32 mΩ) MOSFETs enable efficient 3-A continuous output without external switches.
Operation includes automatic transition between PWM mode (medium-to-heavy load) and Power Save Mode (light load, discontinuous conduction), plus built-in protections: hiccup-mode short-circuit response (32-cycle limit), thermal shutdown (150°C trip), UVLO (2.45 V threshold with 150 mV hysteresis), and output discharge during shutdown via internal FET.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 3 A continuous - supports high-current SoC/FPGA core rails without external current boosting |
| Input voltage range | 2.5 V to 5.5 V - compatible with single-cell Li-ion, USB, and 3.3-V/5-V system rails |
| Switching frequency | 1.5 MHz typical - enables use of small 1-µH inductors and ceramic capacitors for minimal footprint |
| Efficiency peak | 95% at 1.8 V/3 A - reduces thermal load and extends battery runtime in portable devices |
| Quiescent current | 35 µA - sustains ultra-low standby power in always-on subsystems |
| Feedback reference | 600 mV ±1% - enables precise output regulation with standard resistor dividers |
| Power good threshold | 95% VOUT rising / 90% VOUT falling - provides reliable rail sequencing and fault detection |
Pinout & Package
TLV62585RWTT is housed in a thermally enhanced 2.00 mm × 2.00 mm QFN-12 package with exposed thermal pad (PGND-connected) for improved heat dissipation in high-power-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1, 10) | Input power supply | Dual-input configuration lowers high-frequency input ripple and improves EMI performance |
| SW (Pins 2, 11) | Switch node | Connects to inductor and internal high/low-side FETs; requires tight layout to minimize switching losses |
| PGND (Pins 3, 12) | Power ground | Separate low-impedance return path for high-current switching loop; must be tied to thermal pad |
| AGND (Pin 4) | Analog ground | Reference for feedback and control circuitry; isolated from PGND to reduce noise coupling |
| NC (Pins 5, 6) | No connection | Must remain unconnected or tied to AGND/VOUT per design; no internal functionality |
| FB (Pin 7) | Feedback input | Senses output voltage via external resistor divider; high-impedance (0.01 µA leakage) for accuracy |
| EN (Pin 8) | Enable input | Active-high logic control (VIH ≥1.2 V); <2 µA shutdown current enables deep sleep modes |
| PG (Pin 9) | Power good output | Open-drain signal indicating regulated output; requires external pull-up ≤5.5 V for rail sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power switches | 56 mΩ high-side + 32 mΩ low-side MOSFETs - eliminate external FETs and gate drivers, reducing BOM count and layout complexity |
| Adaptive off-time control | Maintains ~1.5-MHz switching frequency across input/output/load variations - simplifies EMI filtering and inductor selection |
| Power Save Mode (PSM) | Automatic entry at light load - reduces switching frequency and quiescent current to sustain >85% efficiency down to 1 mA |
| 100% duty cycle operation | Enables dropout as low as IOUT × RDS(on) - supports high-current, low-VIN applications like 2.5-V input → 1.8-V output |
| Built-in protection suite | Hiccup short-circuit, thermal shutdown (150°C), UVLO (2.45 V), and output discharge - eliminates need for external fault management circuitry |
Applications
| Wireless Router PoL Supply | Solid-State Drive (SSD) Core Rail |
|---|---|
Use Scenario: Providing 1.8-V/3-A core voltage to Wi-Fi 6 baseband processor under dynamic traffic loads. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated core power with fast transient response. Use Value: 95% efficiency at full load minimizes thermal stress in sealed enclosure; PSM extends idle battery life in portable hotspot mode. | Use Scenario: Generating 1.8-V/3-A VCCQ rail for NVMe SSD controller during burst write operations. IC Role / Device Role / Timing Role: High-current step-down converter with soft-start and power-good signaling for controlled power-up sequencing. Use Value: 900-µs soft-start prevents inrush-induced voltage droop on shared 3.3-V bus; PG output enables host-initiated reset coordination. |
| Motor Control MCU Power | Multi-Function Printer Logic Rail |
Use Scenario: Supplying 1.8-V/3-A logic voltage to motor driver MCU in compact industrial actuator. IC Role / Device Role / Timing Role: Compact, thermally robust DC-DC converter operating from 5-V system rail in vibration-prone environment. Use Value: QFN-12 package with exposed thermal pad ensures reliable operation at 125°C junction temperature; hiccup protection survives motor stall faults. | Use Scenario: Delivering 1.8-V/3-A power to printer SoC during simultaneous scan/print/copy operation. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting rapid load transients from imaging sensor and print head activation. Use Value: 1.5-MHz switching enables <100-mV output ripple with 22-µF ceramic output cap; feed-forward capacitor option improves transient recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62865RQYR | Higher 6-A rating, 2.4-V to 5.5-V input, 1.8-V fixed output, 2.2-MHz switching, smaller 1.5-mm × 2.0-mm QFN | Fixed-output variant; lacks adjustable FB and 100% duty cycle mode | Select when fixed 1.8-V output and higher current headroom are required; verify PCB rework for smaller footprint |
| MP2451DT-LF-Z | 3-A rating, 3.3-V to 36-V input, 1.2-MHz switching, external compensation, no PSM or PG output | Wider input range but lower efficiency (~92%) at 1.8 V/3 A; no integrated power-good signaling | Select for industrial 24-V input systems where extended VIN range outweighs loss of sequencing and light-load optimization |
Compared with TPS62865RQYR and MP2451DT-LF-Z, the TLV62585RWTT offers superior light-load efficiency via PSM, precise rail sequencing via PG, and flexible adjustable output - making it optimal for battery-powered, space-constrained 1.8-V core supplies where thermal management and startup control are critical.
Availability
TLV62585RWTT is available at Aetrix Electronics and suitable for wireless routers, solid-state drives, and multi-function printers requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TLV62585RWTT 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, energy-efficient IC design.
The TLV62585RWTT belongs to TI's high-efficiency synchronous buck converter product line, engineered specifically for compact, high-current point-of-load applications in portable and space-constrained electronics where thermal performance and light-load efficiency are critical.
FAQ
What is the maximum continuous output current of the TLV62585RWTT?
The TLV62585RWTT delivers up to 3 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). This rating assumes use of the 2-mm × 2-mm QFN package with adequate copper pour and thermal vias to PGND. Derating applies above 85°C ambient; consult RθJA = 95.7°C/W and thermal curves in the datasheet for specific layout-dependent limits.
Does the TLV62585RWTT support adjustable output voltage?
Yes, the TLV62585RWTT supports adjustable output voltage from 0.6 V to VIN using an external resistor divider connected to the FB pin. The internal feedback reference is 600 mV ±1%, enabling precise regulation - for example, a 1.8-V output uses R1 = 200 kΩ and R2 = 100 kΩ. R2 must not exceed 100 kΩ to maintain light-load efficiency and noise immunity.
How does the TLV62585RWTT handle short-circuit conditions?
The TLV62585RWTT implements hiccup-mode short-circuit protection: upon detecting 32 consecutive current-limit events, it reduces the switch current limit for 32 additional cycles, then stops switching and auto-restarts after ~500 µs. This prevents thermal runaway while allowing automatic recovery once the fault clears - a key safety feature confirmed in the device's electrical characteristics table (ILIM = 4.0–4.6 A).
What is the purpose of the dual VIN pins (Pins 1 and 10) on the TLV62585RWTT?
The dual VIN pins on the TLV62585RWTT provide parallel input paths to reduce high-frequency AC impedance and improve EMI performance. They must be connected to the same input voltage source via low-inductance traces. This configuration lowers effective input ripple current seen by the input capacitor and enhances stability - a design detail explicitly validated in TI's layout guidelines and EVM documentation for the TLV62585RWTT.
Can the TLV62585RWTT operate with a 2.5-V input to generate 1.8-V output?
Yes, the TLV62585RWTT supports 2.5-V input to 1.8-V output operation, enabled by its 100% duty cycle low-dropout mode. In this mode, the high-side FET remains fully on, minimizing dropout to IOUT × RDS(on) + inductor DCR. At 3 A, typical dropout is ~170 mV (3 A × 56 mΩ), ensuring regulation even at minimum input - a capability verified in the datasheet's "100% Duty Cycle Low Dropout Operation" section and efficiency curves (D004).
TLV62585RWTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-PowerVFQFN
- 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-VQFN-HR (2x2)
TLV62585RWTT FAQ
1.How can I place an order for TLV62585RWTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62585RWTT 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 TLV62585RWTT reliable?
The price and inventory of TLV62585RWTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62585RWTT is usually 5 days.
3.What payment methods are accepted for TLV62585RWTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62585RWTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62585RWTT?
TLV62585RWTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62585RWTT 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 TLV62585RWTT?
For technical support, including TLV62585RWTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62585RWTT requirements.
6.How does Aetrix verify that TLV62585RWTT is sourced from the original manufacturer or authorized distributors?
All TLV62585RWTT 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 TLV62585RWTT meets industry standards.
7.What is the process for return or replacement of TLV62585RWTT?
All TLV62585RWTT units undergo pre-shipment inspection (PSI). If there is an issue with TLV62585RWTT, 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 TLV62585RWTT part is unused and in its original packaging.
Return procedure for TLV62585RWTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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