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Texas Instruments TLV62585DRLT
- Part No.:
- TLV62585DRLT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TLV62585DRLT.pdf
- Description:
- IC REG BUCK ADJ 3A SOT5X3
- Quantity:
- Payment:
- Shipping:
Inventory:1,162
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Product details
Overview
TLV62585DRLT 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 and wireless routers.
For engineers reviewing the TLV62585DRLT datasheet, TLV62585DRLT pinout, TLV62585DRLT application, or TLV62585DRLT 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 TLV62585DRLT employs adaptive off-time peak-current control with fixed-frequency PWM (1.5 MHz typical) under medium-to-heavy loads and automatically transitions to Power Save Mode (PSM) at light loads to sustain high efficiency across 0–3 A. Its internal compensation eliminates need for external compensation networks.
It features integrated high- and low-side MOSFETs (RDS(on) = 56 mΩ / 32 mΩ), 600 mV ±6 mV feedback reference voltage, and hiccup-mode overcurrent protection triggered after 32 consecutive current-limit events - enabling robust operation in space-constrained, thermally sensitive applications like portable storage and networking edge devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 3 A continuous - supports high-current rails for SoC core supplies or FPGA I/O banks without external current boosting. |
| Input voltage range | 2.5 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and 3.3 V system rails. |
| Switching frequency | 1.5 MHz typical - enables use of sub-2.2 µH inductors and reduces output ripple without compromising transient response. |
| Efficiency peak | 95% at 1.8 V/2 A - minimizes thermal load and extends battery runtime in portable electronics. |
| Quiescent current | 35 µA - preserves battery life during standby in always-on IoT sensors or sleep-mode peripherals. |
| Feedback voltage | 600 mV ±6 mV (0°C–125°C) - ensures tight output regulation accuracy across industrial temperature range. |
| Thermal shutdown | 150°C with 20°C hysteresis - provides self-recovery protection without external thermal monitoring circuitry. |
Pinout & Package
SOT563 (6-pin) package: 1.6 mm × 1.6 mm footprint, 0.5 mm pitch, thermally enhanced bottom-pad design optimized for PCB heat spreading in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.5–5.5 V supply; dual VIN pins (pins 3 & 10 in QFN variant) not present - single VIN (pin 3) in DRLT requires low-impedance local decoupling. |
| SW | Switch node | Connects to inductor and high/low-side FETs; requires tight layout to minimize ringing and EMI in 1.5-MHz operation. |
| GND | Ground reference | Single GND pin (pin 1); must be tied directly to PGND plane with short trace to avoid ground bounce in high-di/dt switching. |
| FB | Feedback input | Monitors output via resistor divider; 600 mV reference enables precise VOUT setting (e.g., 1.8 V with R1=200 kΩ, R2=100 kΩ). |
| EN | Enable control | Active-high logic input (VIH ≥1.2 V); pulls device into <2 μA shutdown when low - enables sequencing and system-level power management. |
| PG | Power good open-drain | Signals valid regulation (≥95% VOUT); sinks ≤1 mA; requires external pull-up ≤5.5 V - used for rail sequencing or fault flagging. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PSM) | Automatically reduces switching frequency at light loads to maintain >85% efficiency down to 1 mA - critical for battery longevity in idle states. |
| 100% duty cycle operation | Enables dropout as low as IOUT × RDS(on) + IOUT × RL - supports regulation near input rail, e.g., 3.3 V out from 3.6 V Li-ion. |
| Integrated output discharge | Activates internal FET when EN = low to safely bleed residual charge from output capacitor - prevents backfeed and meets safety requirements. |
| Hiccup-mode short-circuit protection | Enters 500-μs auto-retry cycle after 32 overcurrent events - limits average power dissipation during sustained faults without latch-off. |
| Internal soft start | 900-μs ramp time to 95% VOUT - suppresses inrush current into large output caps and avoids brownout on weak sources like coin cells. |
Applications
| SSD Power Rail | Wireless Router Core Supply |
|---|---|
|
Use Scenario: Powers NAND flash controller and DRAM buffer in portable solid-state drives powered by single-cell Li-ion. IC Role / Device Role / Timing Role: Primary step-down regulator delivering stable 1.2 V/1.8 V at up to 3 A with fast load transient response. Use Value: 95% efficiency at 2 A reduces thermal stress inside sealed drive enclosures; PSM extends standby time between host accesses. |
Use Scenario: Supplies 3.3 V to Wi-Fi SoC and Ethernet PHY in compact home gateways with limited board area. IC Role / Device Role / Timing Role: High-frequency buck converter enabling small 1.0 µH inductor and 10 µF ceramic output cap. Use Value: 1.5-MHz operation allows full regulation within 2 mm × 2 mm footprint; PG signal sequences SoC boot before RF initialization. |
| Battery-Powered Motor Control | Set-Top Box AV Processing |
|
Use Scenario: Generates 1.8 V for motor driver logic and sensor interface in cordless power tools using 18-V battery packs with buck-boost front-end. IC Role / Device Role / Timing Role: Secondary point-of-load regulator isolated from noisy motor drive stage. Use Value: 35-μA IQ and 100% duty cycle support ultra-low-power sleep modes; hiccup protection survives accidental motor stall conditions. |
Use Scenario: Provides clean 1.1 V core voltage to video decoder ASIC in consumer set-top boxes with thermal constraints. IC Role / Device Role / Timing Role: Efficient, low-noise DC-DC converter with internal compensation and soft-start. Use Value: Internal soft start prevents voltage overshoot during hot-plug events; thermal shutdown (150°C) protects against enclosure overheating. |
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, 2.7–6 V input, 1.8-MHz switching, but larger 1.6 mm × 2.1 mm QFN package. | Better suited for higher-current SoC cores; less optimal for space-constrained 3-A designs where SOT563 footprint is mandatory. | Choose TPS62865RQYR only if >3 A headroom or tighter line regulation (±0.5%) is required - otherwise TLV62585DRLT offers superior size-efficiency balance. |
| MP2152GQZ-P | 3-A rating, 2.5–5.5 V input, but fixed 1.2 V output and no PG pin; uses smaller 1.2 mm × 1.2 mm WLCSP. | Lacks adjustability and power-good signaling - unsuitable for systems requiring sequenced multi-rail startup or dynamic VOUT scaling. | Select MP2152GQZ-P only for cost-sensitive, fixed-output applications with zero PCB real estate budget - TLV62585DRLT remains preferred for design flexibility and system visibility. |
Compared with TPS62865RQYR and MP2152GQZ-P, the TLV62585DRLT uniquely balances 3-A capability, adjustable output, PG signaling, and minimal 1.6 mm × 1.6 mm SOT563 footprint - making it the optimal choice for compact, feature-complete point-of-load designs where thermal and layout constraints dominate.
Availability
TLV62585DRLT is available at Aetrix Electronics and suitable for battery-powered SSDs, wireless routers, and set-top box AV processing requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TLV62585DRLT 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.
The TLV62585 series targets space-constrained, battery-sensitive applications - designed to deliver high efficiency, low quiescent current, and robust protection in minimal footprints for portable and networking equipment.
FAQ
What is the maximum continuous output current of the TLV62585DRLT?
The TLV62585DRLT delivers up to 3 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). This rating is validated across the full 2.5 V–5.5 V input range and applies to standard 1.8 V, 2.5 V, and 3.3 V outputs. Derating is required above 85°C ambient due to thermal limits - the device enters thermal shutdown at 150°C junction temperature.
Does the TLV62585DRLT support adjustable output voltage, and how is it configured?
Yes, the TLV62585DRLT supports adjustable output voltage from 0.6 V to VIN using an external resistor divider on the FB pin. The feedback reference is precisely 600 mV ±6 mV, so VOUT = 0.6 V × (1 + R1/R2). For example, 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.
What protection features does the TLV62585DRLT include?
The TLV62585DRLT integrates short-circuit protection (hiccup mode), thermal shutdown (150°C with 20°C hysteresis), undervoltage lockout (2.45 V threshold with 150 mV hysteresis), output discharge on shutdown, and power-good monitoring. These features operate autonomously without external components - enabling robust, maintenance-free operation in unattended battery-powered systems.
Can the TLV62585DRLT operate with a pre-biased output capacitor?
Yes, the TLV62585DRLT supports start-up into a pre-biased output. When enabled, it begins regulating from the existing output voltage rather than forcing a hard ramp from 0 V - preventing reverse current flow and avoiding potential damage to downstream circuitry. This behavior is confirmed in the datasheet's soft-start section and verified in Figure 16 (start-up with load).
What is the switching frequency behavior of the TLV62585DRLT under varying load and input conditions?
The TLV62585DRLT maintains ~1.5 MHz switching frequency across most operating conditions - including input voltages from 2.5 V to 5.5 V and output loads from 0.1 A to 3 A - due to its adaptive off-time control architecture. Frequency drops only in Power Save Mode at very light loads (<10 mA), where it scales dynamically to sustain efficiency without audible noise or excessive EMI.
TLV62585DRLT 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
TLV62585DRLT FAQ
1.How can I place an order for TLV62585DRLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62585DRLT 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 TLV62585DRLT reliable?
The price and inventory of TLV62585DRLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62585DRLT is usually 5 days.
3.What payment methods are accepted for TLV62585DRLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62585DRLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62585DRLT?
TLV62585DRLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62585DRLT 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 TLV62585DRLT?
For technical support, including TLV62585DRLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62585DRLT requirements.
6.How does Aetrix verify that TLV62585DRLT is sourced from the original manufacturer or authorized distributors?
All TLV62585DRLT 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 TLV62585DRLT meets industry standards.
7.What is the process for return or replacement of TLV62585DRLT?
All TLV62585DRLT units undergo pre-shipment inspection (PSI). If there is an issue with TLV62585DRLT, 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 TLV62585DRLT part is unused and in its original packaging.
Return procedure for TLV62585DRLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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