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Texas Instruments TLV62085RLTT
- Part No.:
- TLV62085RLTT
- Manufacturer:
- Texas Instruments
- Package:
- 7-VFDFN
- Datasheet:
-
TLV62085RLTT.pdf
- Description:
- IC REG BUCK ADJ 3A 7VSON
- Quantity:
- Payment:
- Shipping:
Inventory:8,277
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Product details
Overview
TLV62085RLTT from Texas Instruments is a high-efficiency, 3-A synchronous step-down DC/DC converter in a 2-mm × 2-mm VSON-7 package, featuring DCS-Control™ topology, 2.5-V to 6-V input range, 0.8-V to VIN adjustable output, and up to 95% efficiency at 3 A - deployed in battery-powered SSDs, portable processors, and point-of-load rails.
For engineers reviewing the TLV62085RLTT datasheet, TLV62085RLTT pinout, TLV62085RLTT application, or TLV62085RLTT equivalent, key selection considerations include its 2.4-MHz PWM switching frequency, 17-μA quiescent current in Power Save Mode, 100% duty cycle low-dropout operation, hiccup short-circuit protection, and integrated 31-mΩ/23-mΩ MOSFETs for compact, thermally robust designs.
Technical Context
The TLV62085RLTT implements DCS-Control™ architecture-combining voltage-mode control with seamless transition between PWM (2.4 MHz fixed-frequency) and Power Save Mode (PFM) at light loads-enabling stable regulation across 10 μA–3 A output current while maintaining <30 mV output ripple. Its internal compensation supports 10–150 μF ceramic output capacitors without external compensation components.
It integrates dual power MOSFETs (31 mΩ high-side, 23 mΩ low-side), soft-start (0.8 ms), output discharge (260 Ω via VOS), open-drain power-good (PG) with 95%/90% thresholds, and thermal shutdown (150°C) with 20°C hysteresis-optimized for space-constrained, battery-sensitive systems requiring fast load transient response and low-noise operation near RF circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 6.0 V - supports single-cell Li-ion, Li-polymer, and 3.3-V/5-V rail inputs without pre-regulation. |
| Output Current | Up to 3 A continuous - enables direct powering of ARM Cortex-A/M cores, FPGA I/O banks, and SSD controllers. |
| Switching Frequency | 2.4 MHz nominal in PWM mode - allows use of sub-1-μH inductors (e.g., 0.47 μH) and reduces EMI filtering footprint. |
| Quiescent Current | 17 μA in Power Save Mode - extends battery runtime in standby/sleep states for portable instrumentation and wearables. |
| Feedback Reference | 800 mV ±8 mV - enables precise output setting (e.g., 1.2 V, 1.8 V, 3.3 V) using standard 1% resistor dividers. |
| Thermal Resistance | RθJA = 107.8 °C/W - requires minimal PCB copper area for thermal management in 2-layer boards. |
| Protection Features | Hiccup short-circuit, UVLO (2.2 V ±0.1 V), thermal shutdown (150°C), and output discharge - eliminates need for external fault-handling circuitry. |
Pinout & Package
TLV62085RLTT is housed in a thermally enhanced 7-pin VSON (RLT) package measuring 2.00 mm × 2.00 mm × 0.75 mm, with exposed thermal pad (pin 5 = GND) for efficient heat dissipation in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable control input | Pull-high (>1.0 V) to activate; internal 400-kΩ pulldown ensures default disable; 0.7-μA shutdown current minimizes system leakage. |
| PG (Pin 2) | Open-drain power-good output | Asserts high-Z when VOUT ≥95% target; pulls low when ≤90%; requires external pullup ≤6 V for rail sequencing or MCU monitoring. |
| FB (Pin 3) | Voltage feedback input | Connects to resistor divider midpoint; regulates output by comparing against 800-mV internal reference; 0.01-μA leakage preserves accuracy. |
| VOS (Pin 4) | Output voltage sense | Direct connection to output capacitor anode enables accurate remote sensing and activates internal 260-Ω discharge path during shutdown. |
| GND (Pin 5) | Power and signal ground | Exposed thermal pad tied to PCB ground plane; serves as primary return for high-current paths (SW, VIN, VOS) and reference for FB/EN/PG. |
| SW (Pin 6) | Switch node | Connects to inductor and high/low-side MOSFET drains; carries high di/dt; must be routed short and wide to minimize EMI and voltage spikes. |
| VIN (Pin 7) | Main power input | Accepts 2.5–6 V; decoupled by 10-μF ceramic capacitor placed adjacent to pin; internal UVLO prevents erratic startup below 2.2 V. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables single-loop control with <1% load regulation error and <50-μs recovery from 1-A load transients - no external compensation required. |
| 100% duty cycle operation | Maintains regulation down to VIN – VOUT ≈ 31 mΩ × IOUT, extending usable battery voltage range by ~150 mV at 3 A - critical for Li-ion end-of-discharge operation. |
| Integrated MOSFETs | 31-mΩ high-side + 23-mΩ low-side switches eliminate external FETs and drivers, reducing BOM count and layout complexity in space-constrained applications. |
| Power Save Mode | Reduces switching frequency and quiescent current to 17 μA at light loads (<10 mA), sustaining >85% efficiency even at 100-μA output currents. |
| Output discharge | 260-Ω internal resistor discharges VOUT through VOS pin during shutdown, preventing back-powering of upstream circuitry or latch-up in multi-rail systems. |
Applications
| Battery-Powered Portable Devices | Processor Core & I/O Supplies |
|---|---|
|
Use Scenario: Powering ARM-based handheld medical monitors with Li-polymer battery (3.0–4.2 V) and dynamic load profile (10 mA sleep → 2.5 A active). IC Role / Device Role / Timing Role: Primary buck regulator delivering regulated 1.2 V to CPU core and 3.3 V to peripherals via resistor-divider configuration. Use Value: 95% peak efficiency and 17-μA quiescent current extend battery life by >30% versus legacy 1.5-MHz converters; DCS-Control™ ensures <20-mV undershoot during 2-A load steps. |
Use Scenario: Supplying configurable logic (FPGA I/O banks) requiring stable 1.8 V ±2% with fast transient response in industrial PLC modules. IC Role / Device Role / Timing Role: Point-of-load converter with remote sensing (VOS) and PG signaling to FPGA configuration controller for safe power sequencing. Use Value: 2.4-MHz switching enables 0.47-μH inductor and 22-μF X5R output cap - achieving <62-mm² solution size while meeting <30-mV ripple spec under 3-A load steps. |
| Solid-State Drive (SSD) Power Rails | Low-Power IoT Sensor Nodes |
|
Use Scenario: Generating 1.2 V and 3.3 V rails for NAND flash controller and DRAM cache in M.2 NVMe SSDs with tight thermal envelope. IC Role / Device Role / Timing Role: Dual-output implementation (using two TLV62085RLTTs) with synchronized enable and PG handshaking for controlled power-up sequence. Use Value: RθJA = 107.8 °C/W and exposed thermal pad allow full 3-A operation on 2-layer PCBs without heatsinks; hiccup protection prevents damage during NAND write-burst overcurrent events. |
Use Scenario: Regulating sensor hub supply (1.8 V) in BLE-enabled environmental sensors powered by coin-cell batteries (2.5–3.0 V). IC Role / Device Role / Timing Role: Ultra-low-IQ buck converter operating in Power Save Mode >99% of time, activated only during 10-ms measurement bursts. Use Value: 17-μA IQ and 100% duty cycle support >1-year battery life; output discharge prevents residual voltage from interfering with deep-sleep MCU states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62085RLTT | Same pinout and package; higher 4-A rating, lower 12-μA IQ, and improved light-load efficiency due to enhanced DCS-Control™ algorithm. | Better suited for future-proofing or margin-critical 3.5-A designs; identical layout compatibility enables drop-in upgrade. | Select TPS62085RLTT if design headroom or lowest possible standby power is prioritized; verify thermal performance at 4 A. |
| TLV62568ARGTR | 2-A rated, SOT-563 package (1.6 mm × 1.6 mm), 1.8-V to 5.5-V input, 2.5-MHz switching, but lacks PG output and VOS pin. | Targeted at ultra-compact, cost-sensitive applications where 2-A output and absence of power sequencing are acceptable. | Choose TLV62568ARGTR only for space-constrained 2-A designs without rail sequencing or output discharge requirements. |
Compared with TLV62085RLTT, TPS62085RLTT offers higher current capability and lower quiescent current with identical footprint, while TLV62568ARGTR trades current rating, PG functionality, and VOS sensing for smaller size and lower cost - making TLV62085RLTT the optimal balance of performance, feature set, and integration for 3-A portable power rails.
Availability
TLV62085RLTT is available at Aetrix Electronics and suitable for battery-powered portable devices, processor core supplies, SSD power rails, and low-power IoT sensor nodes requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TLV62085RLTT 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 ICs, with decades of expertise in high-efficiency DC/DC conversion and automotive-grade reliability.
The TLV62085RLTT belongs to TI's DCS-Control™ synchronous buck converter product line, engineered specifically for space-constrained, battery-sensitive applications demanding high efficiency across wide load ranges - from microamp sleep states to multi-amp active operation.
FAQ
What is the recommended input capacitor for TLV62085RLTT?
A 10-μF X7R ceramic capacitor rated for ≥10 V and placed as close as possible to the VIN and GND pins is recommended for TLV62085RLTT. This value provides sufficient input filtering for most applications; larger values reduce input ripple but are not required. The capacitor must have low ESR and be mounted directly across VIN–GND with minimal trace length to maintain stability and minimize noise coupling into the SW node.
Does TLV62085RLTT support forced PWM mode?
No, TLV62085RLTT does not support forced PWM mode. It operates exclusively in automatic DCS-Control™ mode - entering PWM at medium-to-heavy loads (typically >100 mA) and seamlessly transitioning to Power Save Mode (PFM) at light loads. This architecture optimizes efficiency across the full 10 μA–3 A range without user intervention or external mode-select pins.
Can TLV62085RLTT start into a prebiased output?
Yes, TLV62085RLTT supports startup into a prebiased output. When enabled with an existing VOUT voltage present, the device begins regulation from that bias level and ramps the output to the target voltage using its internal 0.8-ms soft-start timer - preventing reverse current flow and ensuring safe, controlled power-up in multi-rail systems with staggered sequencing.
What is the maximum output capacitance supported by TLV62085RLTT?
TLV62085RLTT supports output capacitors up to 150 μF and beyond, though capacitors >150 μF may trigger hiccup protection during startup under heavy load. For reliable startup with large output capacitance, limit initial load current or use soft-start timing extensions via external RC networks on the EN pin - per TI Application Report SLVA722.
How is output voltage set on TLV62085RLTT?
TLV62085RLTT output voltage is set using an external resistor divider connected between VOUT, FB, and GND. With a fixed 800-mV internal reference at FB, VOUT = 0.8 V × (1 + R1/R2). For example, R1 = 138 kΩ and R2 = 110 kΩ yields 1.8 V. R2 must not exceed 180 kΩ to preserve light-load efficiency and noise immunity, as specified in the datasheet.
TLV62085RLTT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 7-VFDFN
- 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):
- 6V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 3A
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 7-VSON (2x2)
TLV62085RLTT FAQ
1.How can I place an order for TLV62085RLTT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62085RLTT 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 TLV62085RLTT reliable?
The price and inventory of TLV62085RLTT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62085RLTT is usually 5 days.
3.What payment methods are accepted for TLV62085RLTT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62085RLTT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62085RLTT?
TLV62085RLTT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62085RLTT 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 TLV62085RLTT?
For technical support, including TLV62085RLTT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62085RLTT requirements.
6.How does Aetrix verify that TLV62085RLTT is sourced from the original manufacturer or authorized distributors?
All TLV62085RLTT 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 TLV62085RLTT meets industry standards.
7.What is the process for return or replacement of TLV62085RLTT?
All TLV62085RLTT units undergo pre-shipment inspection (PSI). If there is an issue with TLV62085RLTT, 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 TLV62085RLTT part is unused and in its original packaging.
Return procedure for TLV62085RLTT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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