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Texas Instruments TLV62568ADRLT
- Part No.:
- TLV62568ADRLT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TLV62568ADRLT.pdf
- Description:
- IC REG BUCK ADJ 1A SOT5X3
- Quantity:
- Payment:
- Shipping:
Inventory:1,962
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Product details
Overview
TLV62568ADRLT from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 2 A output current at 1.8 V, operating from 2.5 V to 5.5 V input, with 1.5-MHz fixed-frequency PWM control and forced-PWM mode for low output ripple. It integrates 100 mΩ high-side and 60 mΩ low-side MOSFETs and supports 100% duty cycle for ultra-low dropout operation in battery-powered POL applications.
For engineers reviewing the TLV62568ADRLT datasheet, TLV62568ADRLT pinout, TLV62568ADRLT application, or TLV62568ADRLT equivalent, key selection criteria include its SOT563 package footprint, 0.6 V feedback reference, thermal shutdown (150 °C), soft-start time (0.9 ms), and absence of power-good output - distinguishing it from TLV62568APDRL and TLV62569A variants.
Technical Context
The TLV62568ADRLT uses peak-current-mode control with adaptive off-time to maintain stable 1.5-MHz switching across input (2.5–5.5 V), output (0.6–VIN), and load (0–2 A) variations. Its internal 0.6 V reference and resistor-divider feedback enable precise output voltage setting without external compensation.
It operates exclusively in forced PWM mode - eliminating discontinuous conduction mode (DCM) - ensuring consistent switching frequency and minimized output voltage ripple. The device enters 100% duty cycle when VIN approaches VOUT + IOUT × (RDS(on)HS + DCRinductor), enabling regulation down to ~2.0 V at 2 A with typical 1.0 µH inductor and 22 µF output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A maximum continuous - supports compact 1.8-V/2-A POL rails for SoC core supplies. |
| 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 1.0-µH inductors and reduces EMI filtering burden. |
| Feedback Reference | 0.6 V ±2% - sets output via external resistor divider; enables adjustable outputs from 0.6 V to VIN. |
| Efficiency Peak | 95% at 5-V input / 1.8-V/2-A output - minimizes thermal rise in space-constrained SOT563 layout. |
| Shutdown Current | <2 µA - preserves battery life in always-on or low-power standby modes. |
| RDS(on) | 100 mΩ (HS) / 60 mΩ (LS) - reduces conduction loss and improves light-load efficiency. |
Pinout & Package
SOT563-6 package (1.60 mm × 1.60 mm, 0.6-mm height), thermally enhanced with exposed pad (DRL variant). Pin 6 is NC (no connection); not power-good - distinguishes TLV62568ADRLT from APDRL variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB (Pin 1) | Feedback input | Connects to resistor divider midpoint; regulates output by comparing to 0.6-V internal reference. |
| GND (Pin 2) | Power ground | Main return path for high-current SW node and IC bias; must be low-impedance copper pour. |
| VIN (Pin 3) | Input supply | Accepts 2.5–5.5 V; requires local 4.7-µF ceramic capacitor placed adjacent to minimize high-frequency noise. |
| SW (Pin 4) | Switch node | Drives external 1.0-µH inductor; carries pulsed high current - demands short, wide PCB trace routing. |
| EN (Pin 5) | Enable input | Active-high logic (VIH ≥1.2 V); must be terminated - floating EN causes undefined startup behavior. |
| NC (Pin 6) | No connection | Not bonded internally; may be left floating, tied to GND, or connected to VOUT for thermal improvement. |
Key Features
| Feature | Design Value |
|---|---|
| Forced PWM operation | Eliminates frequency variation and subharmonic oscillation - ensures predictable EMI profile and stable loop response across full load range. |
| 100% duty cycle mode | Enables dropout as low as ~200 mV at 2 A (with RDS(on)HS = 100 mΩ + inductor DCR), critical for Li-ion end-of-discharge regulation. |
| Internal soft-start | 0.9-ms ramp time limits inrush current into output capacitors - prevents input rail sag and avoids false UVLO triggering. |
| Overcurrent protection | Peak-switch-current limit (~2 A nominal) protects against short-circuit and overload - auto-recovery after fault clears. |
| Thermal shutdown | 150 °C trip threshold with 20 °C hysteresis - safeguards silicon integrity during sustained overload or poor heatsinking. |
Applications
| Mobile SSD Power Rail | IP Camera Core Supply |
|---|---|
Use Scenario: Powers NVMe SSD controller ASIC requiring stable 1.8-V/2-A supply from shared 3.3-V system rail. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing regulated POL voltage with fast transient response to burst read/write loads. Use Value: Forced PWM ensures consistent 1.5-MHz switching during load transients - minimizing output voltage deviation (<±20 mV) and easing EMI filter design. |
Use Scenario: Supplies image signal processor (ISP) in outdoor IP camera operating from 5-V PoE interface. IC Role / Device Role / Timing Role: High-efficiency step-down converter delivering 1.8-V core voltage with thermal robustness across -40°C to +85°C ambient. Use Value: 95% peak efficiency and 142.8 °C/W junction-to-ambient thermal resistance enable reliable operation without heatsink in sealed enclosures. |
| Wireless Router SoC Core | STB Memory Interface |
Use Scenario: Generates 1.2-V or 1.8-V core voltage for dual-band Wi-Fi 6 SoC in compact router PCB with limited board area. IC Role / Device Role / Timing Role: Compact SOT563 DC-DC converter enabling high-density layout with minimal external components (1 inductor, 2 capacitors). Use Value: 1.6-mm × 1.6-mm footprint and integrated FETs reduce total solution size by >40% versus discrete controller + MOSFET designs. |
Use Scenario: Powers DDR3/DDR4 memory termination and I/O buffers in set-top box mainboard with tight thermal constraints. IC Role / Device Role / Timing Role: Low-noise, fixed-frequency buck converter supplying clean 1.8-V or 2.5-V rail with minimal output ripple (<10 mVpp). Use Value: Forced PWM eliminates variable-frequency artifacts - preventing interference with high-speed memory clock and data eye integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62569ADRLT | 2-A rated like TLV62568ADRLT but with higher current limit (3 A) and same SOT563 package; no PG pin. | Supports higher peak loads (e.g., burst-mode processors) without derating; identical pinout and layout. | Select TLV62569ADRLT when transient current exceeds 2 A or margin is required for long-term reliability under thermal stress. |
| TPS62865DRLR | 2-A, 2.5–5.5-V input, 1.8-V fixed output; 2.2-MHz switching; integrated 0.6-V reference; smaller 1.2-mm × 0.8-mm WCSP package. | Lacks adjustable feedback - only fixed 1.8-V output; no 100% duty cycle; lower thermal resistance (110 °C/W). | Choose TPS62865DRLR for space-constrained designs where fixed 1.8-V output suffices and higher frequency allows smaller passives. |
Compared with TLV62568ADRLT, TLV62569ADRLT offers headroom for transient surges while maintaining identical footprint and control features, whereas TPS62865DRLR trades adjustability and dropout capability for ultra-compact size and higher switching frequency - making each suitable for distinct layout and performance priorities.
Availability
TLV62568ADRLT is available at Aetrix Electronics and suitable for mobile SSD power rails, IP camera core supplies, and wireless router SoC applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for TLV62568ADRLT 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 designing analog ICs, embedded processors, and power management solutions for industrial, automotive, and consumer systems.
The TLV62568ADRLT belongs to TI's TLV6256x family of high-efficiency, small-footprint synchronous buck converters targeting space- and thermal-constrained point-of-load applications in portable and networked electronics.
FAQ
Does TLV62568ADRLT include a power-good (PG) output?
No, TLV62568ADRLT does not include a power-good output. Pin 6 is designated NC (no connection). The PG function is only available on TLV62568APDRL and TLV62569APDRL variants. For sequencing or monitoring, external supervision circuitry or a dedicated supervisor IC must be used with TLV62568ADRLT.
What is the minimum input voltage required for TLV62568ADRLT to regulate 1.8 V at 2 A?
TLV62568ADRLT supports 100% duty cycle operation, enabling regulation down to approximately VIN = VOUT + IOUT × RDS(on)HS ≈ 1.8 V + (2 A × 0.1 Ω) = 2.0 V, assuming negligible inductor DCR. At 2.5-V minimum rated input, it maintains full 2-A capability across the entire specified input range.
Can TLV62568ADRLT be used with an output voltage lower than 1.8 V?
Yes, TLV62568ADRLT supports adjustable output from 0.6 V to VIN using an external resistor divider on the FB pin. For example, a 200-kΩ R1 and 100-kΩ R2 yields 1.8 V; scaling R2 to 66.5-kΩ sets 1.2 V. The 0.6-V reference tolerance (±2%) directly impacts output accuracy.
Is TLV62568ADRLT pin-compatible with TLV62569ADRLT?
Yes, TLV62568ADRLT and TLV62569ADRLT share identical SOT563-6 pinout, package dimensions, and terminal functions. They differ only in current-limit threshold (2 A vs. 3 A) and thermal derating curves - enabling direct layout reuse with no PCB changes required.
What are the recommended input and output capacitors for TLV62568ADRLT in a 1.8-V/2-A design?
Texas Instruments recommends a 4.7-µF X7R ceramic capacitor (0805, 10-V rating) at VIN and a 22-µF X7T ceramic capacitor (0805, 6.3-V rating) at VOUT. These values ensure stable operation, low ripple (<10 mVpp), and optimal transient response - validated in TI's SLVSE95B datasheet Figure 6 and Table 3.
TLV62568ADRLT 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:
- 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-5X3
TLV62568ADRLT FAQ
1.How can I place an order for TLV62568ADRLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62568ADRLT 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 TLV62568ADRLT reliable?
The price and inventory of TLV62568ADRLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62568ADRLT is usually 5 days.
3.What payment methods are accepted for TLV62568ADRLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62568ADRLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62568ADRLT?
TLV62568ADRLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62568ADRLT 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 TLV62568ADRLT?
For technical support, including TLV62568ADRLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62568ADRLT requirements.
6.How does Aetrix verify that TLV62568ADRLT is sourced from the original manufacturer or authorized distributors?
All TLV62568ADRLT 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 TLV62568ADRLT meets industry standards.
7.What is the process for return or replacement of TLV62568ADRLT?
All TLV62568ADRLT units undergo pre-shipment inspection (PSI). If there is an issue with TLV62568ADRLT, 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 TLV62568ADRLT part is unused and in its original packaging.
Return procedure for TLV62568ADRLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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