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Texas Instruments TLV62569PDDCT
- Part No.:
- TLV62569PDDCT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TLV62569PDDCT.pdf
- Description:
- IC REG BUCK ADJ 2A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,340
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Product details
Overview
TLV62569PDDCT from Texas Instruments is a 2-A synchronous buck DC-DC converter in SOT563 package, delivering up to 95% efficiency at 1.8 V/2 A output with 2.5–5.5 V input range, 1.5-MHz fixed-frequency PWM operation, and integrated power-good (PG) output for rail sequencing. It serves as a compact, high-efficiency point-of-load regulator in space-constrained embedded systems.
For engineers reviewing the TLV62569PDDCT datasheet, TLV62569PDDCT pinout, TLV62569PDDCT application, or TLV62569PDDCT equivalent, key selection factors include its 6-pin SOT563 footprint, PG open-drain functionality, 35-µA quiescent current, 100% duty-cycle low-dropout mode, and verified 2-A continuous output capability under thermal limits.
Technical Context
The TLV62569PDDCT employs peak-current-mode control with adaptive off-time modulation, maintaining stable 1.5-MHz switching across input (2.5–5.5 V), output (0.6–VIN), and load (0–2 A) variations. Its internal 100-mΩ/60-mΩ HS/LS FETs enable high efficiency without external drivers.
It operates in PWM mode at medium-to-heavy loads and automatically transitions to Power Save Mode (PSM) at light loads to sustain >80% efficiency down to 10 mA. The PG pin provides precise output voltage monitoring with 95% rising and 90% falling thresholds referenced to FB nominal (0.6 V), supporting reliable multi-rail power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - supports full-rated POL supply for SoC cores or FPGA I/O banks |
| Input Voltage Range | 2.5 V to 5.5 V - compatible with single-cell Li-ion, USB, and 3.3-V/5-V rails |
| Switching Frequency | 1.5 MHz typical - enables use of small 2.2-µH inductors and <10-µF ceramic output caps |
| Quiescent Current | 35 µA - minimizes standby power loss in always-on subsystems |
| Feedback Voltage | 0.6 V ±2% - sets precise output via resistor divider; enables 1.2 V, 1.8 V, 2.5 V, 3.3 V outputs |
| Power Good Threshold | 95% VFB rise / 90% VFB fall - ensures robust rail validation before downstream enable |
| Thermal Shutdown | 150°C rising / 130°C falling - protects against sustained overload or poor PCB heat sinking |
Pinout & Package
SOT563-6 package (1.60 mm × 1.60 mm, 0.55-mm pitch), thermally enhanced with exposed pad (not electrically connected). Pin 1 marked by dot; top view orientation per TI datasheet SLVSDG1C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FB) | Feedback input | Connects to resistor divider midpoint; regulates output to 0.6 V reference; sensitive signal node requiring noise-free routing |
| 2 (GND) | Power ground | Main return path for SW, VIN, and PG; must connect directly to low-impedance ground plane |
| 3 (VIN) | Input power supply | Accepts 2.5–5.5 V; requires local 4.7-µF ceramic decoupling placed adjacent to pin |
| 4 (SW) | Switch node | Drives external inductor; high dv/dt node-keep trace short, wide, and away from sensitive signals |
| 5 (EN) | Enable logic input | Active-high (VIH ≥0.95 V); must be pulled high or driven-never left floating; controls shutdown (<2 µA IQ) |
| 6 (PG) | Power good open-drain | Asserts high-Z when VOUT ≥95% target; sinks 1 mA when VOUT ≤90%; requires external pull-up ≤5.5 V |
Key Features
| Feature | Design Value |
|---|---|
| Integrated HS/LS FETs | 100 mΩ / 60 mΩ RDS(on) - eliminates external MOSFETs and gate drivers; reduces BOM count and layout area |
| Power Save Mode (PSM) | Automatic light-load frequency reduction - maintains >85% efficiency at 10 mA while limiting quiescent draw to 35 µA |
| 100% Duty Cycle Operation | Enables dropout <200 mV at 2 A - sustains regulation with minimal VIN–VOUT margin, e.g., 1.8 V out from 2.0 V input |
| Internal Soft Start | 900 µs ramp time - prevents inrush current into pre-biased outputs and avoids battery voltage sag during startup |
| Comprehensive Protection | Overcurrent limit (3 A), thermal shutdown (150°C), UVLO (2.45 V), and PG fault detection - enables robust unattended operation |
Applications
| Industrial PLC I/O Module | Network Video Camera |
|---|---|
|
Use Scenario: Powers 3.3-V image sensor interface and 1.8-V ISP core from a shared 5-V backplane rail under variable thermal load. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated 1.8 V/2 A with PG confirmation before enabling sensor clock tree. Use Value: 95% peak efficiency reduces heat in sealed enclosures; PG output coordinates startup with Ethernet PHY and flash memory initialization. |
Use Scenario: Supplies 1.2-V DDR3L memory and 1.8-V video processor in a fanless outdoor camera with ambient temperature cycling from –20°C to +70°C. IC Role / Device Role / Timing Role: Compact POL converter with 100% duty-cycle mode maintaining regulation during brownout events on 2.5-V battery backup. Use Value: SOT563 footprint saves board space; PSM extends battery runtime during motion-inactive periods without sacrificing transient response. |
| Wireless Router Baseband | Hard Disk Drive Controller |
|
Use Scenario: Generates 1.2-V core voltage for dual-core ARM processor and 3.3-V I/O rail for Wi-Fi/BT combo chip in a 2-layer consumer router PCB. IC Role / Device Role / Timing Role: High-frequency buck converter synchronized to system clock domain; PG signal gates RF power amplifier enable. Use Value: 1.5-MHz switching avoids AM radio band interference; low EMI design simplifies FCC certification without added shielding. |
Use Scenario: Provides 2.5-V spindle motor driver bias and 1.8-V servo controller logic from a 5-V SATA power rail during rapid spin-up and seek operations. IC Role / Device Role / Timing Role: High-current buck stage with overcurrent protection preventing damage during motor stall or short-circuit faults. Use Value: 3-A current limit withstands 2× rated load transients; thermal shutdown prevents latch-up during extended mechanical stress tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62568PDDCT | No PG output; identical pinout, specs, and SOT563 package | Not suitable where rail sequencing or fault reporting is required | Select TLV62568PDDCT only if PG functionality is unused and cost optimization is critical |
| TPS62865DRLR | Higher 4-A rating, 2.5-V min input, integrated compensation, smaller 1.2-mm × 0.8-mm DSBGA | Better suited for next-gen ultra-compact designs needing higher current or lower profile | Choose TPS62865DRLR when upgrading beyond 2-A load or requiring sub-1-mm height |
Compared with TLV62569PDDCT, TLV62568PDDCT removes PG but retains full electrical compatibility, while TPS62865DRLR offers higher current and smaller size at the cost of different pinout and layout redesign-neither is pin-compatible, but both serve overlapping POL use cases.
Availability
TLV62569PDDCT is available at Aetrix Electronics and suitable for industrial PLC I/O modules, network video cameras, wireless routers, hard disk drive controllers, and other embedded systems requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV62569PDDCT 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 and automotive-grade reliability.
The TLV62569PDDCT belongs to TI's TLV6256x family of compact synchronous buck converters designed specifically for space-constrained, battery-sensitive, and thermally demanding point-of-load applications in consumer, industrial, and networking equipment.
FAQ
What is the maximum continuous output current of the TLV62569PDDCT?
The TLV62569PDDCT delivers 2 A continuous output current under recommended operating conditions (TJ ≤125°C, proper PCB thermal design). Its 3-A overcurrent limit allows brief surge handling, but sustained operation above 2 A requires derating based on ambient temperature and copper area.
Does the TLV62569PDDCT require an external feedback resistor divider?
Yes, the TLV62569PDDCT requires an external resistor divider connected to the FB pin to set the output voltage. With a fixed 0.6-V internal reference, typical configurations use R1 = 200 kΩ and R2 = 100 kΩ for 1.8-V output. R2 should not exceed 200 kΩ to balance accuracy and noise immunity.
Can the TLV62569PDDCT operate with a 2.5-V input and 1.8-V output?
Yes, the TLV62569PDDCT supports 2.5-V input and 1.8-V output. In this condition, it enters 100% duty-cycle mode to maintain regulation, achieving dropout as low as ~180 mV at 2 A (based on 100-mΩ HS FET RDS(on) and inductor DCR).
What is the purpose of the PG pin on the TLV62569PDDCT?
PG (Power Good) is an open-drain output that signals valid regulation: high-impedance when VOUT ≥95% of target, and actively pulled low when VOUT ≤90%. It enables safe power sequencing-for example, driving the EN pin of a secondary rail-using an external pull-up resistor ≤5.5 V.
How does the TLV62569PDDCT manage efficiency at light loads?
The TLV62569PDDCT automatically enters Power Save Mode (PSM) below ~100 mA, reducing switching frequency and gate drive losses. This maintains >85% efficiency at 10 mA while drawing only 35 µA quiescent current from VIN-critical for battery-powered always-on functions.
TLV62569PDDCT 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:
- -
- 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-23-THIN
TLV62569PDDCT FAQ
1.How can I place an order for TLV62569PDDCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62569PDDCT 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 TLV62569PDDCT reliable?
The price and inventory of TLV62569PDDCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62569PDDCT is usually 5 days.
3.What payment methods are accepted for TLV62569PDDCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62569PDDCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62569PDDCT?
TLV62569PDDCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62569PDDCT 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 TLV62569PDDCT?
For technical support, including TLV62569PDDCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62569PDDCT requirements.
6.How does Aetrix verify that TLV62569PDDCT is sourced from the original manufacturer or authorized distributors?
All TLV62569PDDCT 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 TLV62569PDDCT meets industry standards.
7.What is the process for return or replacement of TLV62569PDDCT?
All TLV62569PDDCT units undergo pre-shipment inspection (PSI). If there is an issue with TLV62569PDDCT, 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 TLV62569PDDCT part is unused and in its original packaging.
Return procedure for TLV62569PDDCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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