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Texas Instruments TLV62569DBVR
- Part No.:
- TLV62569DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV62569DBVR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:11,357
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Product details
Overview
TLV62569DBVR from Texas Instruments is a synchronous step-down buck DC-DC converter in SOT23-5 package, delivering up to 2 A output current with 95% peak efficiency, 1.5-MHz fixed switching frequency, and 2.5–5.5 V input range. It integrates 100 mΩ/60 mΩ high/low-side MOSFETs and supports adjustable output voltage (0.6 V to VIN) for point-of-load regulation in space-constrained applications.
For engineers reviewing the TLV62569DBVR datasheet, TLV62569DBVR pinout, TLV62569DBVR application, or TLV62569DBVR equivalent, key selection considerations include its 35 µA quiescent current in PWM mode, Power Save Mode for light-load efficiency, 100% duty cycle low-dropout operation, integrated soft-start, and thermal shutdown protection - all critical for battery-powered and industrial embedded power rails.
Technical Context
The TLV62569DBVR employs adaptive off-time peak-current control with fixed 1.5-MHz PWM at medium-to-heavy loads and automatically transitions to Power Save Mode under light load to maintain high efficiency across 0–2 A. Its internal 0.6 V feedback reference enables precise output regulation via external resistor divider.
It features integrated overcurrent protection (3 A switch current limit), under-voltage lockout (2.45 V nominal with 100 mV hysteresis), and thermal shutdown (150 °C rising threshold). The SOT23-5 package lacks PG and NC pins, distinguishing it from TLV62569P variants with power-good output or SOT563 packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A maximum continuous - supports compact POL supplies for microcontrollers and FPGAs without external current-sense circuitry. |
| 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 2.2 µH inductors and ceramic capacitors for minimal board area. |
| Quiescent Current | 35 µA - minimizes standby power loss in always-on systems like IoT sensors and remote controllers. |
| Feedback Reference | 0.6 V ±2% - allows accurate output setting from 0.6 V to VIN using standard resistor tolerances. |
| High-Side RDS(on) | 100 mΩ - reduces conduction loss at full load, enabling >90% efficiency at 1.8 V/2 A with 5 V input. |
| Soft-Start Time | 800 µs - limits inrush current during startup, protecting input sources and preventing brownout in battery systems. |
Pinout & Package
SOT23-5 (DBV) package: 2.90 mm × 2.80 mm body, 1.45 mm height, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable logic input | Active-high digital control: ≥0.95 V enables regulation; ≤0.85 V forces shutdown (<2 µA ISD). |
| GND | Power ground | Main return path for high-current SW node and internal bias circuits; must be low-impedance PCB connection. |
| SW | Switch node | Connects to inductor and internal FETs; carries high di/dt; requires short, wide trace to minimize EMI and voltage spikes. |
| VIN | Input supply | Accepts 2.5–5.5 V; requires local 4.7 µF ceramic capacitor placed adjacent to pin for stable high-frequency decoupling. |
| FB | Feedback input | Monitors output via resistor divider; 0.6 V reference sets VOUT = 0.6 × (1 + R1/R2); sensitive to noise - route away from SW. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode | Automatic transition to discontinuous conduction mode below ~100 mA load - maintains >85% efficiency at 10 mA while reducing switching losses. |
| 100% Duty Cycle Operation | Enables dropout as low as IOUT × (RDS(on) + DCRL) - sustains regulation when input drops near output voltage, e.g., 1.85 V input for 1.8 V/1 A output. |
| Integrated Soft-Start | 800 µs monotonic ramp - prevents output overshoot and inductor saturation during cold start or pre-biased output conditions. |
| Overcurrent Protection | 3 A peak switch current limit - protects against short-circuit and overload without external sensing, with automatic recovery after fault removal. |
| Thermal Shutdown | 150 °C junction trip with 20 °C hysteresis - disables switching until temperature falls to 130 °C, preventing permanent damage in sealed enclosures. |
Applications
| Industrial PLC I/O Module | Wireless Router Baseband |
|---|---|
Use Scenario: Powers FPGA configuration logic and ADC/DAC interfaces in DIN-rail mounted controllers operating from 24 V DC input with isolated 5 V intermediate rail. IC Role / Device Role / Timing Role: Primary 3.3 V/2 A POL regulator converting 5 V intermediate rail; provides clean, low-noise supply with fast transient response to digital load steps. Use Value: 95% efficiency at full load reduces thermal load on conformally coated PCB; 1.5 MHz switching avoids interference with 2.4 GHz Wi-Fi band. |
Use Scenario: Supplies 1.8 V core voltage to dual-band Wi-Fi SoC (e.g., QCA9984) in compact residential router design with tight thermal constraints. IC Role / Device Role / Timing Role: Core voltage regulator with dynamic load handling; responds to CPU burst currents up to 2 A within 10 µs via optimized LC filter (2.2 µH/10 µF). Use Value: Power Save Mode cuts idle current to <50 µA, extending standby time; SOT23-5 footprint saves >30% board area vs. SO-8 alternatives. |
| Network Video Camera | Hard Disk Drive Controller Board |
Use Scenario: Powers image signal processor (ISP) and MIPI CSI-2 interface in PoE-powered IP camera with ambient temperature up to 70 °C. IC Role / Device Role / Timing Role: Secondary 1.2 V/2 A regulator fed from 3.3 V rail; delivers stable voltage during motion-triggered video encoding bursts. Use Value: Thermal shutdown and 125 °C max operating junction temperature ensure reliability in enclosed metal housings; 0.6 V FB reference enables accurate 1.2 V setpoint. |
Use Scenario: Generates 2.5 V/2 A supply for SATA controller ASIC on HDD mainboard, co-located with motor driver ICs generating significant EMI. IC Role / Device Role / Timing Role: Low-noise POL regulator with minimized SW node loop area; FB routing shielded from adjacent motor drive traces. Use Value: Integrated overcurrent and UVLO prevent latch-up during HDD spin-up surges; 35 µA IQ extends battery backup runtime in NAS systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV62568DBVR | No Power Good (PG) pin; identical SOT23-5 pinout and electrical specs except missing PG functionality. | Not suitable where rail sequencing or fault monitoring is required; otherwise drop-in replacement for cost-sensitive designs. | Select TLV62568DBVR only if PG signal is unused and BOM simplification is prioritized. |
| TPS62865DLGR | Higher 4-A rating, 2.5–5.5 V input, 1.8–5.5 V adjustable output, but uses 2-mm × 2-mm WSON-10 package with different pinout. | Requires PCB redesign; offers higher current and better light-load efficiency (25 µA IQ), but no 100% duty cycle mode. | Choose TPS62865DLGR only when >2 A output or tighter output voltage tolerance (<±1%) is mandatory. |
Compared with TLV62569DBVR, TLV62568DBVR removes PG functionality without altering size or performance, while TPS62865DLGR increases current capability at the cost of layout compatibility and loss of low-dropout operation - making TLV62569DBVR optimal for 2-A, space-constrained, low-VIN applications requiring robust dropout behavior.
Availability
TLV62569DBVR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, wireless router baseband subsystems, and network video camera power rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TLV62569DBVR 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 company headquartered in Dallas, Texas, designing analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV62569DBVR belongs to TI's high-efficiency, small-footprint DC-DC buck converter product line, engineered specifically for point-of-load regulation in thermally constrained, space-limited applications such as portable and networked devices.
FAQ
What is the maximum output current capability of the TLV62569DBVR?
The TLV62569DBVR delivers up to 2 A of continuous output current under recommended operating conditions (TJ ≤ 125 °C, proper PCB thermal design). Its 3 A peak switch current limit provides margin for transient loads, but sustained operation above 2 A risks thermal shutdown due to power dissipation in the 100 mΩ high-side FET. Derating is required above 85 °C ambient.
Does the TLV62569DBVR support power-good signaling?
No, the TLV62569DBVR does not include a power-good (PG) output. That feature is exclusive to TLV62569P variants (e.g., TLV62569PDDC and TLV62569PDRL) which add a dedicated open-drain PG pin. The TLV62569DBVR uses the same SOT23-5 package as the base TLV62568 series and omits PG to maintain pin compatibility and lower cost.
Can the TLV62569DBVR operate with an input voltage as low as 2.5 V while regulating 1.8 V output?
Yes, the TLV62569DBVR supports 100% duty cycle operation, allowing it to regulate 1.8 V output down to input voltages as low as ~1.85 V at 1 A (accounting for RDS(on) and inductor DCR). At 2.5 V input, it operates well within specification, delivering full 2 A with >92% efficiency - confirmed by Figure 7 in the datasheet showing 95% peak efficiency at 1.8 V/2 A with 5 V input.
What is the purpose of the FB pin on the TLV62569DBVR, and how is output voltage set?
The FB (feedback) pin on the TLV62569DBVR senses the output voltage via an external resistor divider and compares it to an internal 0.6 V reference. Output voltage is set using VOUT = 0.6 V × (1 + R1/R2), where R2 connects from FB to GND and R1 from VOUT to FB. For 1.8 V output, a common choice is R1 = 200 kΩ and R2 = 100 kΩ, yielding 0.6 × (1 + 2) = 1.8 V.
How does Power Save Mode affect regulation accuracy and output ripple on the TLV62569DBVR?
In Power Save Mode (active below ~100 mA load), the TLV62569DBVR reduces switching frequency and enters discontinuous conduction mode, causing slight output voltage rise (~1–2% above nominal) due to reduced regulation bandwidth. Output ripple increases modestly but remains within 15 mVPP with proper 10 µF ceramic output capacitance. Adding feed-forward capacitor C3 (6.8 pF) improves transient response without affecting steady-state accuracy.
TLV62569DBVR 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:
- -
- 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-23-5
TLV62569DBVR FAQ
1.How can I place an order for TLV62569DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV62569DBVR 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 TLV62569DBVR reliable?
The price and inventory of TLV62569DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV62569DBVR is usually 5 days.
3.What payment methods are accepted for TLV62569DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV62569DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV62569DBVR?
TLV62569DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV62569DBVR 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 TLV62569DBVR?
For technical support, including TLV62569DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV62569DBVR requirements.
6.How does Aetrix verify that TLV62569DBVR is sourced from the original manufacturer or authorized distributors?
All TLV62569DBVR 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 TLV62569DBVR meets industry standards.
7.What is the process for return or replacement of TLV62569DBVR?
All TLV62569DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV62569DBVR, 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 TLV62569DBVR part is unused and in its original packaging.
Return procedure for TLV62569DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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