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Texas Instruments TLV62585PDRLR
- Part No.:
- TLV62585PDRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TLV62585PDRLR.pdf
- Description:
- IC REG BUCK ADJ 3A SOT5X3
- Quantity:
- Payment:
- Shipping:
Inventory:9,125
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Product details
Overview
TLV62585PDRLR 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 loads, and features power good (PG), soft start, and hiccup-mode short-circuit protection - used in battery-powered SSDs and wireless routers.
For engineers reviewing the TLV62585PDRLR datasheet, TLV62585PDRLR pinout, TLV62585PDRLR application, or TLV62585PDRLR 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 layouts requiring minimal external components.
Technical Context
The TLV62585PDRLR employs adaptive off-time peak-current control to maintain stable ~1.5-MHz PWM switching across varying input voltage (2.5–5.5 V), output voltage (e.g., 1.8 V), and load (0–3 A). Its internal compensation eliminates need for external compensation networks.
It transitions automatically between PWM mode (medium/heavy load) and Power Save Mode (PSM) at light loads, reducing switching frequency and quiescent current to 35 μA while maintaining regulation. The device includes integrated output discharge, undervoltage lockout (2.45 V threshold), and hiccup-mode overcurrent protection triggered after 32 current-limit events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 5.5 V - supports single-cell Li-ion, USB, and 3.3-V/5-V rails without pre-regulation. |
| Output Current | 3 A continuous - sufficient for core logic or SoC power domains in portable electronics. |
| Switching Frequency | 1.5 MHz typical - enables use of small 1-μH inductors and ceramic capacitors for space-constrained designs. |
| Efficiency | Up to 95% at 1.8 V/2 A - minimizes thermal stress and extends battery runtime in portable applications. |
| RDS(on) | 56 mΩ (HS) / 32 mΩ (LS) - reduces conduction loss and improves full-load efficiency vs. discrete FET solutions. |
| Quiescent Current | 35 μA - preserves battery life during standby or low-power sleep modes. |
| Feedback Reference | 600 mV ±1% - enables precise output regulation with standard resistor dividers (e.g., 100 kΩ/200 kΩ for 1.8 V). |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
TLV62585PDRLR uses a 6-pin SOT563 package (1.6 mm × 1.6 mm, 0.5-mm pitch), optimized for high-density PCB layouts and thermal performance via exposed pad (PGND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Connects to 2.5–5.5 V supply; decoupled with 10-μF ceramic capacitor near pin. |
| SW | Switch node | Drives external 1-μH inductor; requires tight layout to minimize EMI and switching losses. |
| PGND | Power ground | Low-impedance return path for high-current switch loop; tied to thermal pad for heat dissipation. |
| GND | Analog ground | Reference for feedback and enable circuits; separated from PGND in layout to avoid noise coupling. |
| FB | Feedback input | Senses output voltage via resistor divider; sensitive to noise - routed away from SW node. |
| EN | Enable control | Active-high logic input (VIH ≥1.2 V); pulled low for <2-μA shutdown current. |
| PG | Power good output | Open-drain signal indicating VOUT ≥95% nominal; requires external pull-up ≤5.5 V for rail sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PSM) | Automatically reduces switching frequency at light loads to sustain >85% efficiency down to 1-mA output. |
| 100% Duty Cycle Operation | Enables ultra-low dropout (e.g., 1.8 V out from 1.95 V in at 1 A), critical for end-of-battery-life operation. |
| Integrated Output Discharge | Activates internal FET when EN = low to safely discharge VOUT - avoids floating bias in multi-rail systems. |
| Hiccup-Mode Short-Circuit Protection | Limits fault energy by cycling on/off after 32 overcurrent events, preventing thermal runaway during sustained shorts. |
| Internal Soft Start | 900-μs ramp time prevents inrush current into large output caps and avoids brownout of weak input sources. |
Applications
| Wireless Router Power Rail | Solid-State Drive Core Supply |
|---|---|
Use Scenario: Powers 1.8-V I/O or PHY circuitry in compact 802.11ac/ax access points with limited board area and thermal headroom. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering clean, regulated 1.8 V at up to 3 A with fast transient response. Use Value: 95% efficiency at 2 A reduces heat generation in sealed enclosures; 1.5-MHz switching allows tiny 1.0-μH inductor and 22-μF output cap. | Use Scenario: Supplies 1.2-V or 1.8-V NAND flash controller or DRAM interface in M.2 SATA/NVMe SSDs. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with power good signaling for system-level power sequencing. Use Value: PG output enables safe startup/shutdown coordination with host controller; 35-μA IQ extends idle power budget in low-activity states. |
| Battery-Powered IoT Sensor Hub | Multi-Function Printer Logic Supply |
Use Scenario: Powers ARM Cortex-M microcontroller and BLE/Wi-Fi transceiver from single Li-ion cell (3.0–4.2 V). IC Role / Device Role / Timing Role: Main system regulator supporting dynamic voltage scaling and deep-sleep modes. Use Value: PSM maintains >90% efficiency at 100-μA load; 100% duty cycle sustains 1.8-V output until battery drops to 1.95 V. | Use Scenario: Generates 3.3-V logic rail for ASIC, FPGA, or motor driver ICs in compact office printers. IC Role / Device Role / Timing Role: Robust, thermally efficient buck converter handling pulsed 2-A loads during print head activation. Use Value: Thermal shutdown (150°C) and hiccup protection prevent damage during intermittent high-current bursts; QFN/SOT563 footprint fits tight mechanical constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62865RQFR | Higher 6-A rating, 2.7–6-V input, 1.8-V fixed output; smaller 1.2-mm × 1.6-mm QFN. | Fixed-output variant lacks adjustability; better suited for high-current, space-constrained apps where 1.8 V is mandatory. | Select if fixed 1.8 V and >3 A are required; not drop-in due to different FB/EN pinout and no PG. |
| MP2152GJ-Z | 3-A, 2.5–5.5-V input, 1.5-MHz, but no PG output or hiccup protection; 20-μA IQ. | Lacks power good signaling and robust fault handling - unsuitable for sequenced or safety-critical rails. | Consider only for cost-sensitive, non-sequenced applications where PG and hiccup are not needed. |
Compared with TPS62865RQFR and MP2152GJ-Z, the TLV62585PDRLR uniquely balances adjustability (0.6–VIN), comprehensive protection (PG, hiccup, thermal), and ultra-compact SOT563 packaging - making it optimal for battery-powered, space-limited designs requiring flexible output voltage and system-level reliability.
Availability
TLV62585PDRLR is available at Aetrix Electronics and suitable for wireless routers, solid-state drives, and battery-powered IoT sensor hubs requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.
Supply support for TLV62585PDRLR 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 TLV62585PDRLR belongs to TI's TLV625xx family of high-frequency synchronous buck converters, designed specifically for compact, battery-operated, and thermally constrained applications where efficiency across wide load ranges is critical.
FAQ
What is the maximum continuous output current of the TLV62585PDRLR?
The TLV62585PDRLR 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 on PGND and ambient temperature ≤85°C. Derating applies above 85°C ambient per the RθJA = 132.7°C/W thermal metric.
Does the TLV62585PDRLR support adjustable output voltage?
Yes, the TLV62585PDRLR supports adjustable output voltage from 0.6 V to VIN using an external resistor divider on the FB pin. The internal reference is 600 mV ±1%, enabling precise outputs such as 1.2 V (R1 = 100 kΩ, R2 = 100 kΩ) or 1.8 V (R1 = 200 kΩ, R2 = 100 kΩ). R2 must not exceed 100 kΩ to maintain light-load efficiency.
What protection features does the TLV62585PDRLR include?
The TLV62585PDRLR includes short-circuit protection (hiccup mode), thermal shutdown (150°C with 20°C hysteresis), undervoltage lockout (2.45 V with 150-mV hysteresis), output discharge during shutdown, and power good monitoring. These features ensure robust operation in real-world conditions including input brownouts, output shorts, and thermal overload - all without external components.
Can the TLV62585PDRLR operate with a 100% duty cycle?
Yes, the TLV62585PDRLR supports 100% duty cycle operation to minimize dropout voltage - critical for battery-powered systems nearing end-of-life. In this mode, the high-side FET remains fully on, allowing VOUT regulation even when VIN is only marginally higher than VOUT, e.g., sustaining 1.8 V output from a 1.95 V input at 1 A load.
Is the TLV62585PDRLR pin-compatible with other variants in the TLV62585 family?
No, the TLV62585PDRLR (SOT563, 6-pin) is not pin-compatible with the TLV62585RWT (QFN-12). While both share identical functionality and electrical specs, their pin counts, layouts, and thermal pad configurations differ. Migration requires PCB redesign. However, the TLV62585DRL (also SOT563) shares identical pinout and is a direct replacement.
TLV62585PDRLR 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
TLV62585PDRLR FAQ
1.How can I place an order for TLV62585PDRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62585PDRLR 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 TLV62585PDRLR reliable?
The price and inventory of TLV62585PDRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62585PDRLR is usually 5 days.
3.What payment methods are accepted for TLV62585PDRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62585PDRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62585PDRLR?
TLV62585PDRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62585PDRLR 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 TLV62585PDRLR?
For technical support, including TLV62585PDRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62585PDRLR requirements.
6.How does Aetrix verify that TLV62585PDRLR is sourced from the original manufacturer or authorized distributors?
All TLV62585PDRLR 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 TLV62585PDRLR meets industry standards.
7.What is the process for return or replacement of TLV62585PDRLR?
All TLV62585PDRLR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62585PDRLR, 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 TLV62585PDRLR part is unused and in its original packaging.
Return procedure for TLV62585PDRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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