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Texas Instruments TLV62569PDRLR
- Part No.:
- TLV62569PDRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TLV62569PDRLR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT5X3
- Quantity:
- Payment:
- Shipping:
Inventory:8,208
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Product details
Overview
TLV62569PDRLR from Texas Instruments is a synchronous step-down buck DC-DC converter delivering up to 2 A output current, operating from 2.5 V to 5.5 V input, with adjustable output voltage (0.6 V to VIN), 1.5 MHz switching frequency, and integrated power good (PG) output. It serves as a compact, high-efficiency point-of-load regulator in space-constrained embedded systems.
For engineers reviewing the TLV62569PDRLR datasheet, TLV62569PDRLR pinout, TLV62569PDRLR application, or TLV62569PDRLR equivalent, key selection considerations include its SOT563-6 package, 2.5-A current limit, Power Save Mode for light-load efficiency, 100% duty cycle low-dropout operation, and PG signal for rail sequencing in multi-rail power systems.
Technical Context
The TLV62569PDRLR uses adaptive off-time peak-current control to maintain stable ~1.5 MHz PWM operation across varying input voltage (2.5–5.5 V), output voltage (e.g., 1.2–3.3 V), and load (0–2 A). Its internal high-side/low-side FETs feature RDS(on) of 100 mΩ / 60 mΩ, enabling high efficiency up to 95% at mid-to-heavy loads.
At light loads, it automatically enters Power Save Mode-reducing switching frequency and quiescent current to 35 µA-while maintaining regulation. The device includes soft-start (900 µs), thermal shutdown (150 °C), UVLO (2.45 V threshold), and overcurrent protection, with PG output asserting high-impedance above 95% VFB and sinking ≥1 mA when below 90% VFB.
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 industrial 3.3/5-V rails without external LDO pre-regulation. |
| Output Current | Up to 2.0 A continuous - sufficient for powering ARM Cortex-M cores, FPGA I/O banks, or sensor hubs. |
| Switching Frequency | 1.5 MHz typical - enables use of small 2.2 µH inductors and ceramic capacitors, reducing solution footprint. |
| Feedback Reference Voltage | 0.600 V ±2% - sets output via external resistor divider; enables precise 1.8 V, 2.5 V, or 3.3 V generation with <±1% load/line regulation. |
| Quiescent Current | 35 µA - minimizes standby power loss in battery-powered devices such as network cameras or IoT edge nodes. |
| Power Good Threshold | 95% VFB (rising), 90% VFB (falling) - provides reliable rail-valid signaling for sequenced enablement of downstream ICs. |
| Current Limit | 2.5 A - protects against short-circuit and overload while allowing safe 2-A continuous operation with margin. |
| Package | SOT563-6 (1.6 mm × 1.6 mm) - ultra-compact surface-mount footprint compatible with fine-pitch PCB assembly. |
Pinout & Package
SOT563-6 package: 1.60 mm × 1.60 mm body, 0.5-mm pitch, 6-pin ultra-small outline transistor. Thermal resistance RθJA = 146.3 °C/W; RθJB = 27.0 °C/W - optimized for board-level heat dissipation in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 5) | Enable logic input | Active-high digital control; must be pulled high (>0.95 V) to operate; floating prohibited. |
| GND (Pin 2) | Power ground | Main return path for high-current SW node and internal circuitry; requires low-impedance PCB connection. |
| SW (Pin 4) | Switch node | Connects to inductor and internal FETs; carries high di/dt; must be routed short and wide to minimize EMI. |
| VIN (Pin 3) | Input supply | Accepts 2.5–5.5 V; requires local 4.7-µF ceramic decoupling placed adjacent to pin. |
| FB (Pin 1) | Feedback input | High-impedance node sensing output voltage via resistor divider; sensitive to noise-keep away from SW trace. |
| PG (Pin 6) | Power good open-drain | Signals output regulation status; requires external pull-up ≤5.5 V; sinks ≥1 mA when faulted. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PSM) | Automatically reduces switching frequency at light loads to sustain >85% efficiency down to 10 mA, extending battery life. |
| 100% Duty Cycle Operation | Enables dropout as low as IOUT × (RDS(on) + DCRL) - critical for maintaining 1.8 V output from a fading 2.5-V battery. |
| Integrated Soft Start | 900 µs controlled ramp prevents inrush current into large output caps, avoiding input rail collapse in multi-rail systems. |
| Robust Protection Suite | Includes thermal shutdown (150 °C), overcurrent limiting (2.5 A), UVLO (2.45 V), and internal current-sense-based fault response. |
| Low-Noise Feedback Architecture | 0.6-V reference with ±2% accuracy and <±0.3% line/load regulation ensures stable core voltage for noise-sensitive analog circuits. |
Applications
| Industrial PLC I/O Module | Network Video Camera |
|---|---|
Use Scenario: Powers FPGA configuration logic and image sensor interface circuitry from a 3.3-V or 5-V backplane rail. IC Role / Device Role / Timing Role: Primary 1.8-V POL regulator delivering clean, regulated power with fast transient response to handle burst-mode sensor readouts. Use Value: 95% peak efficiency and 35-µA quiescent current reduce thermal load and extend uptime in fanless enclosures. |
Use Scenario: Supplies 2.5-V or 3.3-V rails to CMOS image sensors and video encoder ASICs in outdoor IP cameras. IC Role / Device Role / Timing Role: High-density buck converter providing stable output despite wide ambient temperature swings (−40 °C to +85 °C). Use Value: PG output coordinates startup with Ethernet PHY and Wi-Fi SoC, ensuring deterministic boot sequence and system reliability. |
| Wireless Router Baseband | Hard Disk Drive Controller |
Use Scenario: Generates 1.2-V core voltage for dual-band Wi-Fi 6 baseband processors under dynamic load conditions. IC Role / Device Role / Timing Role: Adaptive-frequency buck regulator maintaining regulation during rapid CPU load transitions (0–2 A in <1 µs). Use Value: Power Save Mode sustains >88% efficiency at idle, reducing total system power by >150 mW versus fixed-frequency alternatives. |
Use Scenario: Provides 3.3-V motor driver and 1.8-V logic supply in 2.5-inch HDD controller boards with strict EMI limits. IC Role / Device Role / Timing Role: Compact SOT563-6 buck converter minimizing PCB area while meeting CISPR-22 Class B conducted emissions. Use Value: 1.5-MHz switching allows use of 2.2-µH shielded inductors and avoids AM radio band interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62568PDRLR | No PG output; identical pinout, package, and electrical specs except missing power good functionality. | Not suitable for systems requiring rail sequencing or fault monitoring; lower cost where PG is unnecessary. | Select TLV62568PDRLR only if PG signal is omitted from system architecture and BOM cost reduction is prioritized. |
| TPS62865DRLR | Higher 4-A rating, 2.5-V to 5.5-V input, 1.8-V fixed output, 2-MHz switching, but no adjustable FB and no PG pin. | Better for higher-current, fixed-output applications; lacks flexibility for multi-voltage designs and sequencing capability. | Choose TPS62865DRLR when 4-A output and smallest possible solution size are required, and adjustable VOUT/PG are not needed. |
Compared with TLV62569PDRLR, TLV62568PDRLR removes PG functionality while retaining identical layout and efficiency; TPS62865DRLR trades adjustability and sequencing support for higher current and tighter integration, making TLV62569PDRLR optimal for flexible, sequenced POL designs up to 2 A.
Availability
TLV62569PDRLR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, network video cameras, wireless routers, and hard disk drive controllers requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for TLV62569PDRLR 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 TLV62569PDRLR belongs to TI's TLV6256x family of compact synchronous buck converters, designed specifically for space-constrained, battery-aware, and multi-rail embedded applications demanding high efficiency across full load range.
FAQ
What is the maximum continuous output current supported by the TLV62569PDRLR?
The TLV62569PDRLR supports up to 2.0 A continuous output current under recommended operating conditions (TJ ≤ 125 °C, proper PCB thermal design). Its internal current limit is specified at 2.5 A, providing headroom for transient surges while maintaining safe operation. Derating is required above 85 °C ambient due to thermal constraints in the SOT563 package.
Does the TLV62569PDRLR require an external feedback resistor divider?
Yes, the TLV62569PDRLR requires an external resistor divider connected to the FB pin to set the output voltage. With a fixed 0.600-V internal reference, VOUT = 0.6 × (1 + R1/R2). For example, using R2 = 100 kΩ and R1 = 200 kΩ yields 1.8 V output. R2 should not exceed 200 kΩ to balance noise immunity and quiescent current.
How does the power good (PG) output function on the TLV62569PDRLR?
The TLV62569PDRLR's PG pin is an open-drain output that goes high-impedance when VFB ≥ 95% of nominal (indicating valid regulation) and pulls low (<0.4 V at 1 mA sink) when VFB ≤ 90%. It requires an external pull-up resistor to ≤5.5 V and is used for power sequencing-e.g., enabling downstream regulators or asserting system reset signals.
Can the TLV62569PDRLR operate with a 2.5-V input and 1.8-V output?
Yes, the TLV62569PDRLR supports 2.5-V input and 1.8-V output with full 2-A capability. In this condition, it operates in 100% duty cycle mode when necessary, leveraging its low RDS(on) (100 mΩ high-side) to minimize dropout. Efficiency exceeds 88% at 1 A and remains >80% down to 100 mA due to Power Save Mode.
What is the recommended inductor value for a 1.8-V/2-A TLV62569PDRLR design?
Texas Instruments recommends a 2.2-µH shielded power inductor (e.g., Coilcraft XAL4020-222ME) for 1.8-V/2-A operation. This value balances ripple current (~30% of IOUT), size, and efficiency at 1.5 MHz. Saturation current rating should exceed 2.6 A (20% margin), and DCR should be minimized to preserve dropout performance.
TLV62569PDRLR 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:
- -
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- 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
TLV62569PDRLR FAQ
1.How can I place an order for TLV62569PDRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62569PDRLR 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 TLV62569PDRLR reliable?
The price and inventory of TLV62569PDRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62569PDRLR is usually 5 days.
3.What payment methods are accepted for TLV62569PDRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62569PDRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62569PDRLR?
TLV62569PDRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62569PDRLR 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 TLV62569PDRLR?
For technical support, including TLV62569PDRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62569PDRLR requirements.
6.How does Aetrix verify that TLV62569PDRLR is sourced from the original manufacturer or authorized distributors?
All TLV62569PDRLR 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 TLV62569PDRLR meets industry standards.
7.What is the process for return or replacement of TLV62569PDRLR?
All TLV62569PDRLR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62569PDRLR, 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 TLV62569PDRLR part is unused and in its original packaging.
Return procedure for TLV62569PDRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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