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Texas Instruments TLV62568PDDCR
- Part No.:
- TLV62568PDDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TLV62568PDDCR.pdf
- Description:
- IC REG BUCK ADJ 1A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,484
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Product details
Overview
TLV62568PDDCR from Texas Instruments is a 1-A synchronous buck DC-DC converter in SOT-563 package, featuring 1.5-MHz fixed-frequency PWM operation, Power Save Mode for light-load efficiency, and integrated power-good (PG) output. It delivers regulated 1.8 V at 1 A from 2.5–5.5 V input, with 95% peak efficiency, 0.6-V feedback reference, and 35-µA quiescent current - used in compact point-of-load supplies for network cameras and set-top boxes.
For engineers reviewing the TLV62568PDDCR datasheet, TLV62568PDDCR pinout, TLV62568PDDCR application, or TLV62568PDDCR equivalent, key selection criteria include its SOT-563 footprint, PG open-drain functionality, 100% duty-cycle low-dropout capability, thermal shutdown (150°C), and compatibility with ceramic output capacitors ≥10 µF.
Technical Context
The TLV62568PDDCR uses adaptive off-time peak-current control to maintain ~1.5-MHz switching frequency across input (2.5–5.5 V), output (0.6–VIN), and load (0–1 A) variations. Its internal high-side/low-side FETs (150 mΩ / 100 mΩ RDS(on)) enable efficient synchronous rectification without external diodes.
It operates in PWM mode at medium-to-heavy loads and automatically transitions to Power Save Mode at light loads to sustain >85% efficiency down to 10 mA. The PG pin provides open-drain status signaling referenced to 95% (rising) and 90% (falling) of nominal VFB, requiring an external pull-up ≤5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1 A continuous - supports single-rail POL for SoC cores or FPGA I/O banks. |
| 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 reduces EMI filtering burden. |
| Feedback Reference | 0.6 V ±2% - allows precise adjustable output from 0.6 V to VIN using resistor divider. |
| Quiescent Current | 35 µA - minimizes standby power loss in always-on embedded systems. |
| Peak Efficiency | 95% at 1.8 V/1 A, 5 V input - reduces thermal load in space-constrained PCB layouts. |
| Power Good Threshold | Rising: 95% VFB, Falling: 90% VFB - enables reliable rail sequencing with downstream EN pins. |
| Thermal Shutdown | 150°C rising / 130°C falling - protects against sustained overload or poor heatsinking. |
Pinout & Package
SOT-563 (6-pin) package: 1.60 mm × 1.60 mm body, 0.5-mm pitch, ultra-compact footprint optimized for high-density PCBs. Thermal resistance RθJB = 31.1°C/W enables >0.8 A continuous operation on 2-layer boards without thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FB) | Feedback input | Connects to resistor divider midpoint; regulates output by comparing to 0.6-V internal reference. |
| 2 (GND) | Power ground | Primary return path for SW, VIN, and PG; must be low-impedance connection to PCB ground plane. |
| 3 (VIN) | Input supply | Accepts 2.5–5.5 V; requires local 4.7-µF ceramic capacitor placed adjacent to pin. |
| 4 (SW) | Switch node | Drives external 2.2-µH inductor; high dv/dt node - minimize trace area and avoid routing near sensitive signals. |
| 5 (EN) | Enable input | Logic-high (>0.95 V) enables regulation; logic-low (<0.85 V) disables device, reducing IQ to <2 µA. |
| 6 (PG) | Power good output | Open-drain status signal - sinks up to 1 mA when VOUT drops below 90% target; requires external pull-up. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode | Automatic transition to variable-frequency PSM below ~100 mA load, maintaining >85% efficiency without external control. |
| 100% Duty Cycle Operation | Enables dropout as low as IOUT × (RDS(on) + DCRL); sustains regulation even when VIN approaches VOUT. |
| Internal Soft Start | 900-µs ramp time prevents inrush current into pre-biased outputs and avoids battery voltage sag during startup. |
| Integrated Protection | Includes overcurrent limit (1.5 A peak), thermal shutdown (150°C), and UVLO (2.45 V with 100-mV hysteresis). |
| Low-Noise Feedback Path | FB pin accepts feed-forward capacitor (e.g., 6.8 pF) to improve transient response without compromising stability. |
Applications
| Network Video Camera | Set-Top Box |
|---|---|
|
Use Scenario: Powers image sensor and video processor core from 3.3-V or 5-V main rail under varying ambient temperatures. IC Role / Device Role / Timing Role: Primary 1.2-V/1.8-V POL regulator delivering stable low-noise supply with fast load transient response. Use Value: 95% efficiency at full load reduces thermal stress in sealed enclosures; PG signal enables safe boot sequencing with SoC reset controller. |
Use Scenario: Supplies HDMI PHY, audio DAC, and tuner ICs in consumer entertainment devices with strict standby power limits. IC Role / Device Role / Timing Role: Always-on 3.3-V auxiliary rail generator with 35-µA quiescent current and 2-µA shutdown mode. Use Value: Power Save Mode maintains >80% efficiency at 10-mA standby load, meeting Energy Star requirements without external bias circuits. |
| Wireless Router | Industrial IoT Gateway |
|
Use Scenario: Provides clean 1.8-V supply to Wi-Fi 6 baseband processor during burst transmit/receive cycles. IC Role / Device Role / Timing Role: High-transient-response buck converter with 2.2-µH inductor and 10-µF X7R output capacitor. Use Value: Load-step response (0.3 A → 1 A) controlled within ±30 mV using optional 6.8-pF feed-forward capacitor on FB divider. |
Use Scenario: Regulates 2.5-V rail for RS-485 transceivers and microcontroller peripherals in harsh industrial environments. IC Role / Device Role / Timing Role: Robust POL solution with thermal shutdown (150°C), UVLO hysteresis (100 mV), and -40°C to +125°C operating range. Use Value: SOT-563 package withstands reflow and vibration; RθJB = 31.1°C/W ensures reliability on FR-4 without thermal pads or vias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62569PDDCR | Same SOT-563 package, identical pinout, but higher 2-A output rating and 2.1-MHz switching frequency. | Better suited for future-proof designs requiring headroom beyond 1 A or faster transient response. | Select TLV62569PDDCR only if 2-A capability or 2.1-MHz operation is required; TLV62568PDDCR offers lower cost and proven 1-A stability. |
| TPS62865DRLR | 2.5-V to 5.5-V input, 1-A output, but features I2C programmability, 0.6-V reference, and 4-µA IQ in deep-sleep mode. | Required where dynamic voltage scaling or ultra-low standby power (<10 µA) is mandatory. | Choose TPS62865DRLR for smart-power applications needing firmware-controlled VOUT adjustment; TLV62568PDDCR excels in fixed-output simplicity and cost-sensitive volume production. |
Compared with TLV62568PDDCR, TLV62569PDDCR provides higher current headroom and frequency, while TPS62865DRLR adds digital control and deeper sleep - neither is pin-compatible, and both require layout revision and firmware integration not needed for TLV62568PDDCR's analog-only design.
Availability
TLV62568PDDCR is available at Aetrix Electronics and suitable for network video cameras, set-top boxes, and wireless routers requiring stable component supply, long-term manufacturability, and automotive-grade reliability screening.
Supply support for TLV62568PDDCR 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 TLV62568PDDCR belongs to TI's TLV6256x family of compact synchronous buck converters, designed specifically for space-constrained, cost-sensitive point-of-load applications in consumer and industrial electronics.
FAQ
What is the maximum output current supported by the TLV62568PDDCR?
The TLV62568PDDCR is rated for continuous 1-A output current under recommended operating conditions (TJ ≤ 125°C, proper PCB layout). Peak switch current limit is 1.5 A, and thermal shutdown activates at 150°C junction temperature to prevent damage during overload or poor thermal design.
Does the TLV62568PDDCR support adjustable output voltage?
Yes, the TLV62568PDDCR supports adjustable output voltage from 0.6 V to VIN using an external resistor divider connected to the FB pin. The internal 0.6-V reference enables precise regulation - for example, a 1.8-V output uses R1 = 200 kΩ and R2 = 100 kΩ per the standard formula VOUT = 0.6 × (1 + R1/R2).
What is the function of the PG pin on the TLV62568PDDCR?
The PG (Power Good) pin on the TLV62568PDDCR is an open-drain output that signals valid regulation: it goes high-impedance when VOUT rises above 95% of target and pulls low when VOUT falls below 90%. It requires an external pull-up resistor ≤5.5 V and is used for rail sequencing, fault monitoring, or system reset assertion in conjunction with other power supplies.
Can the TLV62568PDDCR operate with a 2.5-V input and 1.8-V output?
Yes, the TLV62568PDDCR fully supports 2.5-V input and 1.8-V output operation. At this condition, it enters 100% duty cycle mode to maintain regulation, leveraging its low RDS(on) (150 mΩ high-side) and minimal dropout - verified in datasheet Figure 10 (Load Regulation) and Table 6.5 (Electrical Characteristics).
Is the TLV62568PDDCR pin-compatible with other variants in the TLV6256x family?
No, the TLV62568PDDCR (SOT-563, 6-pin) is not pin-compatible with TLV62568DBV (SOT-23-5) or TLV62568DRL (SOT-563 without PG). However, it is pin-to-pin compatible with TLV62569PDDCR (same SOT-563 package and pin mapping), enabling direct upgrade paths for higher current needs without layout changes.
TLV62568PDDCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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-THIN
TLV62568PDDCR FAQ
1.How can I place an order for TLV62568PDDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62568PDDCR 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 TLV62568PDDCR reliable?
The price and inventory of TLV62568PDDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62568PDDCR is usually 5 days.
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TLV62568PDDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62568PDDCR 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 TLV62568PDDCR?
For technical support, including TLV62568PDDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62568PDDCR requirements.
6.How does Aetrix verify that TLV62568PDDCR is sourced from the original manufacturer or authorized distributors?
All TLV62568PDDCR 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 TLV62568PDDCR meets industry standards.
7.What is the process for return or replacement of TLV62568PDDCR?
All TLV62568PDDCR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62568PDDCR, 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 TLV62568PDDCR part is unused and in its original packaging.
Return procedure for TLV62568PDDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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