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Texas Instruments TLV62565DBVR
- Part No.:
- TLV62565DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV62565DBVR.pdf
- Description:
- IC REG BUCK ADJ 1.5A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,651
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Product details
Overview
TLV62565DBVR from Texas Instruments is a synchronous step-down DC-DC converter IC delivering up to 1.5 A output current with 2.7 V to 5.5 V input range, 1.5 MHz switching frequency, and 0.6 V feedback reference voltage-designed for compact, high-efficiency power rails in portable electronics such as tablets and DSL modems.
For engineers reviewing the TLV62565DBVR datasheet, TLV62565DBVR pinout, TLV62565DBVR application, or TLV62565DBVR equivalent, key selection considerations include its adaptive on-time valley current mode control, 50 µA quiescent current in Power Save Mode, SOT-23-5 package footprint, and EN-controlled enable/disable functionality without Power Good output.
Technical Context
The TLV62565DBVR implements adaptive on-time valley current mode control, dynamically adjusting high-side MOSFET on-time based on VIN/VOUT ratio to maintain ~1.5 MHz operation across load and input variations. It integrates both high-side (173 mΩ RDS(on)) and low-side (105 mΩ RDS(on)) synchronous FETs.
It operates in PWM mode at medium/heavy loads and automatically transitions to PFM-based Power Save Mode at light loads, reducing IQ to 50 µA while maintaining regulation via 0.9% FB voltage offset. Internal soft-start (250 µs typ) and thermal shutdown (150°C) are integrated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion, USB, and 3.3 V/5 V rails without external LDO pre-regulation. |
| Output Current | Up to 1.5 A - sufficient for core logic, memory, and I/O rails in portable SoC applications. |
| Switching Frequency | 1.5 MHz typical - enables use of small 2.2 µH inductors and 4.7–10 µF ceramic output capacitors. |
| Feedback Reference | 0.6 V ±2% - sets output voltage via external resistor divider; supports 0.6 V to DMAX·VIN (≤5.2 V). |
| Quiescent Current | 50 µA typical - ensures >85% efficiency at 1 mA load, critical for battery runtime in standby modes. |
| Current Limit | 1.7 A valley limit (low-side), 2.0 A peak limit (high-side) - protects against short-circuit and overload without external sensing. |
| Thermal Shutdown | 150°C with 20°C hysteresis - provides self-recovery protection during sustained overloads or poor PCB thermal design. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 2.80 mm body, 0.95 mm height, gull-wing leads, JEDEC MO-178AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 4) | Power input | Accepts 2.7–5.5 V; requires local 4.7 µF ceramic decoupling close to pin to minimize switching noise and input ripple. |
| GND (Pin 2) | Power ground | Primary return path for high-frequency switch current; must connect to solid ground plane under IC for thermal and EMI performance. |
| SW (Pin 3) | Switch node | Connects to inductor and diode-free synchronous rectifier; carries high dv/dt; routing must be short and away from sensitive analog traces. |
| FB (Pin 5) | Feedback input | Monitors output via resistor divider; high-impedance (10–100 nA bias); sensitive to noise-requires guard ring and shortest possible trace. |
| EN (Pin 1) | Enable input | Active-high logic control (VIH ≥1.2 V); internal pull-down; must be driven-not left floating-to ensure predictable startup/shutdown sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive On-Time Control | Maintains stable ~1.5 MHz operation across input/output/load variations-eliminates need for external compensation network. |
| Power Save Mode (PFM) | Reduces quiescent current to 50 µA at light loads while preserving regulation-extends battery life in always-on subsystems. |
| Internal Soft-Start | 250 µs monotonic output ramp prevents inrush current and avoids brownout during cold start or into pre-biased outputs. |
| Synchronous Rectification | Integrated high- and low-side MOSFETs (173 mΩ / 105 mΩ) eliminate external Schottky loss-enables >95% peak efficiency. |
| Valley Current Limit Protection | 1.7 A low-side current limit detects discontinuous conduction mode faults-provides robust short-circuit protection without current-sense resistors. |
Applications
| Mobile Tablet Core Rail | DSL Modem PHY Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processor core voltage (1.0–1.2 V) from single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary buck regulator providing tightly regulated, low-noise core supply with fast transient response to CPU DVFS events. Use Value: 1.5 A capability and 1.5 MHz switching support compact 2.2 µH inductor + 10 µF output capacitor solution; 50 µA IQ extends standby time. | Use Scenario: Supplies 3.3 V analog front-end (AFE) and line driver circuitry in broadband DSL modems powered from 5 V wall adapter. IC Role / Device Role / Timing Role: High-efficiency intermediate rail converter enabling clean, low-ripple power for sensitive analog signal paths. Use Value: 95% peak efficiency and excellent AC load response minimize thermal rise and maintain SNR in high-speed data transmission. |
| Portable SSD Controller Rail | Set-Top Box SoC I/O Supply |
Use Scenario: Generates 1.8 V I/O supply for NAND flash controller in ultra-thin portable SSD enclosures using 3.3 V input bus. IC Role / Device Role / Timing Role: Compact, thermally efficient point-of-load regulator placed adjacent to controller die for minimal voltage drop and noise coupling. Use Value: SOT-23-5 footprint fits tight board space; thermal resistance RθJA = 208.3°C/W allows full 1.5 A load with minimal heatsinking. | Use Scenario: Delivers 1.2 V or 1.5 V supply to video processing SoC I/O banks in consumer set-top boxes operating from 5 V main rail. IC Role / Device Role / Timing Role: Secondary buck converter supporting dynamic voltage scaling and low-power sleep states. Use Value: EN pin enables precise power sequencing with system MCU; under-voltage lockout (2.3 V) prevents erratic behavior during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | Fixed 1.8 V output; 1.8 MHz switching; 1.2 A max output; no adjustable FB pin. | Not suitable for programmable output voltage designs; limited to fixed-VOUT applications. | Select when 1.8 V output is required and board space permits slightly larger 6-pin WSON package. |
| MP2158GJ-Z | 2.5–5.5 V input; 1.5 A; 2 MHz; 25 µA IQ; requires external compensation. | Lacks integrated soft-start and valley current limit; needs external RC network for loop stability. | Choose for higher-frequency operation where smaller inductors are prioritized, accepting added design complexity. |
Compared with TPS62231DRVR and MP2158GJ-Z, the TLV62565DBVR offers adjustable output voltage via FB pin, integrated soft-start and thermal protection, and lower minimum input voltage (2.7 V), making it better suited for battery-powered systems requiring flexibility and robustness.
Availability
TLV62565DBVR is available at Aetrix Electronics and suitable for portable devices, DSL modems, hard disk drivers, and set-top boxes requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.
Supply support for TLV62565DBVR 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 U.S.-based semiconductor company specializing in analog, embedded processing, and power management ICs, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The TLV62565DBVR belongs to TI's TLV6256x family of high-efficiency synchronous buck converters designed for space-constrained, battery-operated applications demanding low IQ, fast transient response, and simplified layout.
FAQ
What is the maximum output voltage achievable with TLV62565DBVR?
The TLV62565DBVR supports output voltages from 0.6 V up to DMAX·VIN, where DMAX is 95%. With a 5.5 V input, the theoretical maximum is 5.225 V. However, practical limits are governed by the external resistor divider's precision, FB pin accuracy (±2%), and stability margins-TI recommends staying below 5.0 V for reliable operation across temperature and load.
Does TLV62565DBVR support forced PWM mode, or is it auto-PFM only?
The TLV62565DBVR does not support forced PWM mode-it automatically transitions between PWM (medium/heavy load) and PFM (light load) based on inductor current continuity. There is no external pin or register to disable Power Save Mode. This simplifies design but means light-load efficiency is optimized at the expense of slight output voltage ripple increase in PFM.
Can TLV62565DBVR start up into a pre-biased output capacitor?
Yes, TLV62565DBVR supports pre-biased start-up. Its internal soft-start circuitry monitors the output voltage and ramps it monotonically toward the target value-even if the output capacitor is initially charged. This prevents reverse current flow and ensures safe, controlled power-up in multi-rail systems where other supplies may be active first.
What is the recommended minimum output capacitance for TLV62565DBVR?
Texas Instruments specifies a minimum output capacitance of 10 µF for stable operation with the TLV62565DBVR. Ceramic X5R/X7R types are required due to low ESR requirements. For 1.2 V or lower outputs, ≥22 µF is recommended to suppress ripple; for 1.8 V outputs (e.g., typical application), 10 µF is sufficient per TI's reference design and Table 2 in the datasheet.
How does the EN pin behavior differ between TLV62565DBVR and TLV62566DBVR?
The TLV62565DBVR uses Pin 1 as EN (enable input), while TLV62566DBVR uses Pin 1 as PG (power good open-drain output). They are not pin-compatible: TLV62565DBVR has no PG function, and TLV62566DBVR lacks an EN pin-its enable is tied internally to VIN above UVLO. Therefore, TLV62565DBVR requires external logic-level control of EN, whereas TLV62566DBVR relies on input voltage presence for activation.
TLV62565DBVR 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.23V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV62565DBVR FAQ
1.How can I place an order for TLV62565DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62565DBVR 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 TLV62565DBVR reliable?
The price and inventory of TLV62565DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62565DBVR is usually 5 days.
3.What payment methods are accepted for TLV62565DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62565DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62565DBVR?
TLV62565DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62565DBVR 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 TLV62565DBVR?
For technical support, including TLV62565DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62565DBVR requirements.
6.How does Aetrix verify that TLV62565DBVR is sourced from the original manufacturer or authorized distributors?
All TLV62565DBVR 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 TLV62565DBVR meets industry standards.
7.What is the process for return or replacement of TLV62565DBVR?
All TLV62565DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62565DBVR, 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 TLV62565DBVR part is unused and in its original packaging.
Return procedure for TLV62565DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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