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Texas Instruments TLV62568DBVT
- Part No.:
- TLV62568DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV62568DBVT.pdf
- Description:
- IC REG BUCK ADJ 1A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,023
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Product details
Overview
TLV62568DBVT from Texas Instruments is a synchronous step-down buck DC-DC converter in SOT-23-5 package, delivering up to 1 A output current with 95% peak efficiency, 1.5-MHz fixed switching frequency, and 2.5–5.5 V input range. It regulates 1.8 V output for POL applications in space-constrained embedded systems.
For engineers reviewing the TLV62568DBVT datasheet, TLV62568DBVT pinout, TLV62568DBVT application, or TLV62568DBVT equivalent, this page delivers verified electrical parameters, validated SOT-23-5 pin mapping, confirmed light-load Power Save Mode behavior, and real-world design constraints for 1-A point-of-load conversion.
Technical Context
The TLV62568DBVT uses adaptive off-time peak-current control to maintain ~1.5-MHz switching across input (2.5–5.5 V), output (0.6–VIN), and load (0–1 A) variations. Its internal 150-mΩ/100-mΩ FET pair enables high-efficiency PWM operation at medium-to-heavy loads and automatic transition to Power Save Mode at light loads.
It integrates soft-start (700 µs), under-voltage lockout (2.45 V threshold), thermal shutdown (150 °C), overcurrent protection (1.5 A limit), and power-good functionality - though PG is omitted in the DBVT variant due to its SOT-23-5 pinout lacking the dedicated PG terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1 A continuous - supports single-rail microcontroller or FPGA core supply without external current boosting. |
| Input Voltage Range | 2.5 V to 5.5 V - compatible with Li-ion, USB, and 3.3-V/5-V system rails. |
| Switching Frequency | 1.5 MHz - enables use of small 2.2-µH inductors and ceramic capacitors for compact PCB layout. |
| Peak Efficiency | 95% at 1.8 V/0.8 A, 5 V input - minimizes thermal stress and extends battery runtime in portable designs. |
| Quiescent Current | 35 µA - sustains low-power sleep modes in always-on IoT sensors and wearables. |
| Feedback Voltage | 0.6 V ±2% - sets output via resistor divider; enables precise 1.2 V to 3.3 V regulation with <±1% load/line regulation. |
| Shutdown Current | ≤2 µA - ensures negligible battery drain during system standby or deep-sleep states. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 2.80 mm body, 0.95 mm height, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable logic input | Active-high digital control: ≥0.95 V enables regulation; ≤0.85 V forces shutdown with <2 µA VIN current. |
| GND (Pin 2) | Power ground reference | Primary return path for high-frequency switch current; must be connected to low-impedance PCB ground plane. |
| SW (Pin 3) | Switch node | Connects internal high/low-side FETs to inductor; carries pulsed current up to 1.5 A; requires short, wide trace routing. |
| VIN (Pin 4) | Input power supply | Accepts 2.5–5.5 V; requires local 4.7-µF ceramic capacitor placed adjacent to minimize input ripple and EMI. |
| FB (Pin 5) | Feedback sensing input | Monitors output voltage via resistor divider; 0.6 V reference enables adjustable VOUT; sensitive to noise-keep away from SW node. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode | Automatic transition below discontinuous conduction threshold improves light-load efficiency without external control. |
| 100% Duty Cycle Operation | Maintains regulation down to VIN = VOUT + IOUT×(150 mΩ + inductor DCR), enabling ultra-low dropout in battery-powered systems. |
| Integrated Soft Start | 700 µs ramp time limits inrush current, preventing input rail collapse and avoiding brownout in multi-rail systems. |
| Robust Protection Suite | Includes overcurrent (1.5 A peak), thermal shutdown (150 °C), UVLO (2.45 V), and internal current limiting-no external components needed. |
| Pre-biased Start-up | Supports start-up into pre-charged output capacitors, eliminating output voltage undershoot in hot-swap or sequencing-critical applications. |
Applications
| Network Video Camera | Set Top Box |
|---|---|
Use Scenario: Powering image sensor, ISP, and Wi-Fi SoC from a 3.3-V or 5-V main rail in compact enclosure. IC Role / Device Role / Timing Role: Primary 1.8-V/1-A POL regulator supplying core voltage to video processing ASIC. Use Value: 95% efficiency at 0.8 A reduces thermal footprint; 1.5-MHz switching avoids audible noise and simplifies EMI filtering. |
Use Scenario: Generating stable 1.2-V core supply for ARM-based media processor alongside 3.3-V I/O and 5-V USB rails. IC Role / Device Role / Timing Role: Secondary synchronous buck converter for CPU core domain, controlled by system PMIC enable signal. Use Value: 35-µA quiescent current preserves standby power budget; soft-start prevents reset glitches during wake-from-sleep transitions. |
| Wireless Router | Industrial PLC I/O Module |
Use Scenario: Providing clean 3.3-V supply to RF transceiver and Ethernet PHY in fanless residential gateway. IC Role / Device Role / Timing Role: Isolated 3.3-V POL stage decoupled from noisy 12-V DC-DC front-end. Use Value: Low 150-mΩ high-side RDS(on) minimizes conduction loss; SOT-23-5 footprint saves board area in dense multi-layer PCBs. |
Use Scenario: Regulating 2.5-V analog supply for precision ADC and DAC in DIN-rail mounted controller with wide ambient temperature range. IC Role / Device Role / Timing Role: Local low-noise buck converter feeding analog subsystem, independent of digital 3.3-V rail. Use Value: ±2% FB voltage accuracy and <±1% load regulation ensure stable reference voltage; -40°C to 125°C operating junction range supports industrial thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62569DBVT | Pin-to-pin compatible SOT-23-5 variant with integrated power-good (PG) output; identical electrical specs except PG pin presence. | Required where rail sequencing or fault monitoring is needed; adds one external pull-up resistor but no layout change. | Select TLV62569DBVT only if PG signal is used for system-level power sequencing or status reporting. |
| TPS62865DRLR | 2.5–5.5 V input, 1.5-A output, 2.25-MHz switching, smaller 1.2-mm × 0.8-mm WSON-6 package; higher IQ (12 µA) but no PSM. | Better suited for ultra-compact, high-density designs where size trumps light-load efficiency; lacks Power Save Mode. | Choose TPS62865DRLR when board area is critical and light-load efficiency is secondary to footprint reduction. |
Compared with TLV62568DBVT, TLV62569DBVT adds PG functionality without altering pinout or performance, while TPS62865DRLR trades PSM and SOT-23-5 compatibility for smaller size and higher current-making TLV62568DBVT optimal for cost-sensitive, space-constrained 1-A POL where PG is unnecessary.
Availability
TLV62568DBVT is available at Aetrix Electronics and suitable for network video cameras, set-top boxes, and wireless routers requiring stable component supply, long-term production continuity, and automotive-grade reliability screening.
Supply support for TLV62568DBVT 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 TLV62568DBVT belongs to TI's TLV6256x family of compact synchronous buck converters designed specifically for space-constrained, battery-powered, and always-on embedded applications demanding high light-load efficiency and minimal external components.
FAQ
What is the maximum output current capability of the TLV62568DBVT?
The TLV62568DBVT delivers up to 1 A of continuous output current under recommended operating conditions (TJ ≤ 125 °C, VIN = 2.5–5.5 V). Its internal 150-mΩ high-side and 100-mΩ low-side MOSFETs enable this rating with typical 95% efficiency at 1.8 V/0.8 A and 5 V input. Derating is required above 85 °C ambient due to thermal limits.
Does the TLV62568DBVT support power-good signaling?
No, the TLV62568DBVT does not include a power-good (PG) output. The SOT-23-5 DBV package has only five pins (EN, GND, SW, VIN, FB) and omits the PG terminal present in six-pin variants like TLV62568PDDC or TLV62569DBVT. For PG functionality, select TLV62569DBVT - a pin-compatible upgrade with identical electrical specs plus open-drain PG output.
What is the recommended inductor value for a 1.8-V/1-A TLV62568DBVT design?
Texas Instruments recommends a 2.2-µH shielded power inductor (e.g., Cyntec SDER041H-2R2MS) for 1.8-V/1-A operation with 5-V input. This value balances ripple current (~30% of IOUT), transient response, and size. Inductor saturation current should exceed 1.3 A (20% margin above 1-A max load), and DC resistance should be minimized to preserve efficiency.
Can the TLV62568DBVT start up into a pre-biased output capacitor?
Yes, the TLV62568DBVT supports pre-biased start-up: it begins regulation from an existing output voltage rather than forcing a hard zero-to-VOUT ramp. This prevents reverse current flow and output voltage overshoot when powering subsystems that retain charge on bulk capacitance - critical in hot-swap and multi-rail sequencing applications.
How does Power Save Mode affect output voltage accuracy in the TLV62568DBVT?
In Power Save Mode (active below ~100 mA load), the TLV62568DBVT reduces switching frequency and enters discontinuous conduction mode, causing a slight rise in output voltage - typically within +2% of nominal VOUT. This effect is mitigated by increasing output capacitance (e.g., 22 µF instead of 10 µF) and using X7R/X5R ceramics with low bias derating.
TLV62568DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- 1A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV62568DBVT FAQ
1.How can I place an order for TLV62568DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62568DBVT 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 TLV62568DBVT reliable?
The price and inventory of TLV62568DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62568DBVT is usually 5 days.
3.What payment methods are accepted for TLV62568DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62568DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62568DBVT?
TLV62568DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62568DBVT 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 TLV62568DBVT?
For technical support, including TLV62568DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62568DBVT requirements.
6.How does Aetrix verify that TLV62568DBVT is sourced from the original manufacturer or authorized distributors?
All TLV62568DBVT 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 TLV62568DBVT meets industry standards.
7.What is the process for return or replacement of TLV62568DBVT?
All TLV62568DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV62568DBVT, 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 TLV62568DBVT part is unused and in its original packaging.
Return procedure for TLV62568DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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