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Texas Instruments TLV62585DRLR
- Part No.:
- TLV62585DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TLV62585DRLR.pdf
- Description:
- IC REG BUCK ADJ 3A SOT5X3
- Quantity:
- Payment:
- Shipping:
Inventory:7,249
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Product details
Overview
TLV62585DRLR from Texas Instruments is a 3-A synchronous buck DC-DC converter in SOT563 package, operating from 2.5 V to 5.5 V input and delivering adjustable output (0.6 V to VIN) with up to 95% efficiency at 1.5 MHz switching frequency. It integrates 56 mΩ/32 mΩ power switches, supports power save mode for light-load efficiency, and includes power good (PG), soft start, and hiccup-mode short-circuit protection - used in battery-powered SSDs, wireless routers, and multi-function printers.
For engineers reviewing the TLV62585DRLR datasheet, TLV62585DRLR pinout, TLV62585DRLR application, or TLV62585DRLR equivalent, key selection considerations include its 3-A continuous output capability, 35-μA quiescent current, 100% duty cycle low-dropout operation, thermal shutdown at 150°C, and compatibility with compact 1.6 mm × 1.6 mm SOT563 layouts requiring minimal external components.
Technical Context
The TLV62585DRLR uses adaptive off-time peak-current control to maintain stable ~1.5-MHz PWM switching across varying VIN, VOUT, and load conditions. Its internal compensation eliminates need for external loop compensation components.
It operates in PWM mode at medium-to-heavy loads and automatically transitions to Power Save Mode (PSM) at light loads to sustain high efficiency - with output voltage rising slightly above nominal in PSM, mitigated by feedforward capacitor or increased output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3 A continuous - supports high-current point-of-load 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 reduces EMI filtering burden. |
| Efficiency Peak | 95% at 1.8 V/2 A - minimizes thermal rise in space-constrained portable designs. |
| Quiescent Current | 35 µA - extends battery runtime in always-on or low-duty-cycle applications. |
| Feedback Reference | 600 mV ±1% - enables precise output regulation with standard resistor divider networks. |
| Thermal Shutdown | 150°C with 20°C hysteresis - provides robust overtemperature recovery without latch-up. |
| Power Good Output | Open-drain PG with 95%/90% VOUT thresholds - enables reliable rail sequencing and fault monitoring. |
Pinout & Package
TLV62585DRLR is housed in a 1.6 mm × 1.6 mm, 6-pin SOT563 package with exposed thermal pad (PGND-connected). The package supports high-density PCB layouts and offers RθJA = 132.7°C/W (JEDEC high-k board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Primary supply input (2.5–5.5 V); dual connection points (pins 3 & 10 in QFN, but only pin 3 in SOT563) reduce trace inductance. |
| SW | Switch node | Connects to internal high/low-side FETs and external inductor; requires tight layout to minimize ringing and EMI. |
| PGND | Power ground | Dedicated ground return for high-current switch paths; must be connected directly to thermal pad and input/output capacitors. |
| AGND | Analog ground | Reference ground for feedback and control circuitry; isolated from PGND except at single-point star connection. |
| FB | Feedback input | Monitors output via resistor divider; 600-mV reference enables accurate VOUT setting (e.g., 1.8 V with R1=200 kΩ, R2=100 kΩ). |
| EN | Enable input | Active-high logic control (VIH ≥1.2 V); pulls device into <2-μA shutdown when low - critical for system power sequencing. |
| PG | Power good output | Open-drain status signal indicating VOUT ≥95% nominal; requires external pull-up ≤5.5 V for rail monitoring or cascaded enable. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 56 mΩ / 32 mΩ FETs | Reduces conduction loss and eliminates need for external MOSFETs or drivers - simplifies BOM and layout. |
| 100% duty cycle operation | Enables ultra-low dropout (e.g., 1.8 V out from 2.0 V in under light load), extending usable battery range. |
| Output discharge function | Internally discharges VOUT through SW pin during shutdown - prevents residual voltage from interfering with downstream logic. |
| Hiccup-mode short-circuit protection | Auto-retries after 500 µs delay upon 32 consecutive current-limit events - protects against sustained overload without latching. |
| Pre-biased start-up support | Allows safe startup into pre-charged output capacitors - avoids reverse current flow and system instability during hot-swap or rail sequencing. |
Applications
| Wireless Router PoL Supply | Solid-State Drive Core Rail |
|---|---|
Use Scenario: Powers 1.8-V NAND flash controller and DRAM interface in compact 2.5-inch SATA SSDs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering clean, regulated 1.8 V/3 A with fast transient response. Use Value: 95% efficiency at 2 A reduces thermal load in sealed enclosures; 35-μA IQ extends idle battery life in portable SSDs. |
Use Scenario: Supplies 1.8-V core voltage to Wi-Fi 6/6E baseband ICs in residential gateways with tight board area constraints. IC Role / Device Role / Timing Role: High-frequency (1.5 MHz) step-down converter enabling small 1-µH inductor and 10-µF ceramic output cap. Use Value: SOT563 footprint (1.6 mm × 1.6 mm) saves >40% board area vs. comparable QFN; PG output sequences RF front-end enable. |
| Multi-Function Printer Logic Rail | Motor Control Auxiliary Supply |
Use Scenario: Generates stable 3.3-V logic rail for ARM-based print controller and USB PHY in compact all-in-one printers. IC Role / Device Role / Timing Role: Adjustable-output buck converter configured for 3.3 V using external R1/R2 divider. Use Value: 0.6–VIN output range supports multiple voltage options from one BOM; power save mode cuts no-load loss to 35 µA. |
Use Scenario: Provides isolated 5-V auxiliary supply for gate drivers and position sensors in BLDC motor modules. IC Role / Device Role / Timing Role: Compact, thermally robust buck stage feeding opto-isolated driver inputs and Hall sensor bias. Use Value: Thermal shutdown (150°C) and hiccup protection prevent damage during motor stall or wiring faults; PG flag signals healthy rail to MCU. |
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, 2.5–5.5 V input, 1.8-V fixed output (non-adjustable), 2-MHz switching, smaller 1.2-mm × 1.6-mm WSON. | Fixed-output variant better suited for high-current, single-voltage systems where flexibility is unnecessary. | Select when 6-A headroom and smallest footprint outweigh need for adjustable VOUT. |
| MP2152GQZ-P | 3-A rating, 2.5–5.5 V input, adjustable 0.6–VIN output, 2-MHz switching, 1.5-µA IQ, but no PG output or output discharge. | Lacks power good signaling and active discharge - limits use in sequenced or safety-critical subsystems. | Choose for ultra-low-IQ battery apps where PG and discharge are not required and 2-MHz operation is preferred. |
Compared with TPS62865RQYR and MP2152GQZ-P, TLV62585DRLR uniquely balances adjustability, integrated PG, output discharge, and proven 3-A performance in a manufacturable SOT563 package - making it optimal for cost-sensitive, space-constrained, and sequenced multi-rail designs.
Availability
TLV62585DRLR is available at Aetrix Electronics and suitable for battery-powered SSDs, wireless routers, multi-function printers, motor control auxiliaries, and set-top boxes requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance.
Supply support for TLV62585DRLR 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 decades of expertise in high-efficiency DC-DC conversion.
The TLV62585DRLR belongs to TI's TLV625xx family of high-frequency synchronous buck converters - designed specifically for compact, high-efficiency point-of-load regulation in portable and space-constrained applications.
FAQ
What is the maximum continuous output current of the TLV62585DRLR?
The TLV62585DRLR 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 1.6 mm × 1.6 mm SOT563 package with adequate copper pour and airflow. Derating applies above 85°C ambient or with insufficient thermal relief.
Does the TLV62585DRLR support adjustable output voltage?
Yes, the TLV62585DRLR supports adjustable output voltage from 0.6 V to VIN using an external resistor divider on the FB pin. The internal 600-mV reference enables precise setting - for example, 1.8 V is achieved with R1 = 200 kΩ and R2 = 100 kΩ. R2 should not exceed 100 kΩ to maintain light-load efficiency.
What is the purpose of the PG (power good) pin on the TLV62585DRLR?
The PG pin on the TLV62585DRLR is an open-drain output that signals valid regulation: it goes high-impedance when VOUT reaches ≥95% of target and pulls low when VOUT drops ≤90%. It requires an external pull-up resistor (≤5.5 V) and is commonly used for power sequencing - e.g., enabling downstream converters or asserting system reset.
Can the TLV62585DRLR start up into a pre-biased output capacitor?
Yes, the TLV62585DRLR supports pre-biased start-up: it safely ramps the output from an existing voltage on the output capacitor without forcing reverse current. This feature is essential for hot-swap applications and multi-rail systems where output caps may retain charge during partial power cycles.
How does the TLV62585DRLR handle short-circuit conditions?
The TLV62585DRLR implements hiccup-mode short-circuit protection: upon detecting 32 consecutive switch current limit events, it pauses switching for ~500 µs before retrying. This prevents thermal runaway while allowing automatic recovery once the fault clears - unlike latch-off protection, which requires external reset.
What is the quiescent current of the TLV62585DRLR in normal operation and shutdown?
In normal PWM operation with no load, the TLV62585DRLR draws 35 µA quiescent current from VIN. In shutdown (EN = low), it consumes ≤2 µA - verified across temperature and input voltage. These values enable extended battery life in always-on or intermittently active systems.
TLV62585DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- 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:
- SOT-5X3
TLV62585DRLR FAQ
1.How can I place an order for TLV62585DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62585DRLR 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 TLV62585DRLR reliable?
The price and inventory of TLV62585DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62585DRLR is usually 5 days.
3.What payment methods are accepted for TLV62585DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62585DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62585DRLR?
TLV62585DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62585DRLR 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 TLV62585DRLR?
For technical support, including TLV62585DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62585DRLR requirements.
6.How does Aetrix verify that TLV62585DRLR is sourced from the original manufacturer or authorized distributors?
All TLV62585DRLR 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 TLV62585DRLR meets industry standards.
7.What is the process for return or replacement of TLV62585DRLR?
All TLV62585DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62585DRLR, 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 TLV62585DRLR part is unused and in its original packaging.
Return procedure for TLV62585DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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