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Texas Instruments TPS566242DRLR
- Part No.:
- TPS566242DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS566242DRLR.pdf
- Description:
- IC REG BUCK ADJ 6A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:9,599
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Product details
Overview
TPS566242DRLR from Texas Instruments is a 6-A synchronous buck converter in SOT-563 package, supporting 3-V to 16-V input and 0.6-V to 7-V output with ±1% reference accuracy at 25°C, 120-μA quiescent current, and D-CAP3™ control topology for fast transient response without external compensation.
For engineers reviewing the TPS566242DRLR datasheet, TPS566242DRLR pinout, TPS566242DRLR application, or TPS566242DRLR equivalent, this page delivers verified electrical parameters, Eco-mode efficiency behavior, thermal protection thresholds, SOT-563 layout-optimized pin mapping, and real-world design constraints for embedded power rails in space-constrained consumer and industrial systems.
Technical Context
The TPS566242DRLR implements D-CAP3™ adaptive on-time control with internal ripple emulation, enabling stable operation with ultra-low-ESR ceramic capacitors and eliminating need for external compensation. It features dual ground pins (GND and AGND) connected together for optimal thermal and regulation performance.
Eco-mode operation reduces switching frequency proportionally to load current below discontinuous conduction threshold, maintaining high light-load efficiency. Protection includes non-latching UVLO (2.72–2.92 V), hiccup-mode UVP (60% VOUT), cycle-by-cycle OCP (7.4 A typical valley limit), and thermal shutdown at 155°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 16 V - supports wide-input industrial and automotive supply rails without pre-regulation. |
| Output Current | 6 A continuous - delivers full rated current in SOT-563 package with RθJA_effective = 51°C/W on 4-layer EVM board. |
| Reference Voltage | 0.6 V ±1% at 25°C - enables precise output setting down to 0.6 V with minimal resistor-divider error. |
| Quiescent Current | 120 μA - sustains high efficiency at microamp-level loads typical in always-on system rails. |
| Switching Frequency | 600 kHz typical - balances EMI, inductor size, and efficiency for compact 1–2 cm² PCB layouts. |
| Duty Cycle Max | 98% - supports high-step-down ratios (e.g., 12 V → 1.2 V) with extended on-time and reduced dropout risk. |
| Thermal Shutdown | 155°C trip, 135°C recovery - provides robust overtemperature protection with defined hysteresis for reliable restart. |
Pinout & Package
TPS566242DRLR uses a 6-pin SOT-563 (DRL) package measuring 1.6 mm × 1.6 mm with 0.5-mm pitch and optimized pin arrangement for minimal loop area and thermal path to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply | Accepts 3–16 V DC; connects directly to bulk input capacitor; must be decoupled near package edge. |
| SW (Pin 2) | Switch node | High-frequency switching point between integrated high-side (27.7 mΩ) and low-side (14.8 mΩ) FETs; requires tight layout to minimize EMI. |
| GND (Pin 3) | Power ground | Source terminal of low-side FET and controller ground return; must connect to solid copper pour under package. |
| AGND (Pin 4) | Analog ground | Ground reference for feedback amplifier and internal reference; tied to GND at single point for noise isolation and regulation stability. |
| EN (Pin 5) | Enable input | Logic-level control (1.18 V typical turn-on); supports sequencing and standby mode; internal 2-MΩ pulldown ensures default disable. |
| FB (Pin 6) | Feedback input | Monitors output voltage via resistor divider; 0.6-V reference sets VOUT = 0.6 × (1 + R1/R2); sensitive to noise-requires local 0.1-μF bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode operation | Reduces switching frequency under light load to maintain >85% efficiency at 1-mA output, critical for battery-backed or standby rails. |
| D-CAP3™ control | Enables stable regulation with zero external compensation components and compatibility with MLCC, POSCAP, and SP-CAP output capacitors. |
| Pre-biased soft-start | Allows safe startup into precharged output (e.g., hot-swap or rail-sharing systems) without reverse current or overshoot. |
| Integrated FETs | 27.7-mΩ high-side and 14.8-mΩ low-side NFETs eliminate external MOSFET selection and gate-drive complexity. |
| Non-latching protections | UVLO, OVP (120% VOUT), UVP (60% VOUT), OTP, and cycle-by-cycle OCP enable fault recovery without manual reset. |
Applications
| IP Network Camera Power Rail | WLAN Access Point Core Supply |
|---|---|
|
Use Scenario: Powers image sensor, ISP, and Wi-Fi SoC in compact outdoor IP cameras with ambient temperature range –40°C to 85°C. IC Role / Device Role / Timing Role: Primary 1.05-V or 1.2-V core regulator delivering up to 6 A with fast load-step response to burst-mode video encoding. Use Value: D-CAP3™ control achieves <±5% output deviation during 2.5-A transient steps; Eco-mode extends battery life in PoE-powered units. |
Use Scenario: Supplies 3.3-V I/O and 1.05-V CPU rails in 802.11ac/ax access points with dense RF layout and limited board area. IC Role / Device Role / Timing Role: High-density buck converter replacing discrete controllers + MOSFETs; SOT-563 footprint saves >30% PCB area vs SO-8 alternatives. Use Value: 600-kHz fixed frequency avoids interference with 2.4-GHz/5-GHz bands; 1.6-mm × 1.6-mm package enables placement under metal shielding. |
| Streaming Media Player SoC Core | SSD Controller Power Management |
|
Use Scenario: Regulates 0.8–1.1-V core voltage for ARM-based media processors in 4K streaming sticks with thermally constrained enclosures. IC Role / Device Role / Timing Role: Main SoC core supply with precision 0.6-V reference and ±1% accuracy ensuring timing margin compliance across temperature. Use Value: 120-μA quiescent current minimizes standby power loss; 98% max duty cycle supports 12-V input to sub-1-V outputs without dropout. |
Use Scenario: Provides tightly regulated 1.2-V and 1.8-V rails for NAND flash controllers and DRAM buffers in M.2 NVMe SSDs with aggressive thermal limits. IC Role / Device Role / Timing Role: Secondary power stage after primary DC/DC; handles dynamic current spikes during write bursts and garbage collection. Use Value: Cycle-by-cycle OCP prevents damage during short-duration overloads; hiccup-mode UVP protects against failed downstream LDOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS566247DRLR | FCCM mode (fixed 600-kHz frequency), higher 400-μA quiescent current, adds negative overcurrent (NOC) protection. | Better for noise-sensitive systems requiring constant switching frequency and lower output ripple; less efficient at light load. | Select TPS566247DRLR when EMI filtering or clock synchronization dominates over standby power budget. |
| MP2315GJ-Z | Monolithic 6-A buck with 4.5–28-V input, 500-kHz switching, no Eco-mode, 250-μA IQ, different SOT-563 pinout (VIN/SW/GND/EN/FS/FB). | Lacks D-CAP3™ and pre-bias start-up; requires external compensation; wider VIN suits 24-V industrial inputs. | Choose MP2315GJ-Z only if input exceeds 16 V or if TI ecosystem integration (WEBENCH®, documentation) is not required. |
Compared with TPS566247DRLR, the TPS566242DRLR trades fixed-frequency predictability for superior light-load efficiency; versus MP2315GJ-Z, it offers tighter reference accuracy, integrated compensation, and proven layout compatibility in TI reference designs.
Availability
TPS566242DRLR is available at Aetrix Electronics and suitable for LCD TV power supplies, IP camera SoC rails, WLAN access point core regulators, and SSD controller power management requiring stable component supply, long-term lifecycle support, and validated thermal performance in SOT-563 packages.
Supply support for TPS566242DRLR 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 TPS56624x product line targets space-constrained, high-current point-of-load applications in consumer electronics and networking equipment, emphasizing ease of design, minimal external components, and robust protection in ultra-small packages.
FAQ
What is the maximum continuous output current of the TPS566242DRLR?
The TPS566242DRLR delivers 6 A continuous output current under recommended operating conditions (TJ ≤ 125°C, VIN = 12 V, 4-layer PCB with 2-oz copper). Its thermal performance is validated with RθJA_effective = 51°C/W on the official EVM, enabling full-rated current in compact layouts without forced airflow.
Does the TPS566242DRLR support startup into a pre-biased output?
Yes, the TPS566242DRLR supports pre-biased soft-start: when the FB voltage exceeds the internal reference at enable, switching begins only after the internal soft-start ramp surpasses VFB, preventing reverse current flow and output overshoot-critical for hot-swap and multi-rail sequencing applications.
How does Eco-mode improve light-load efficiency in the TPS566242DRLR?
Eco-mode in the TPS566242DRLR reduces switching frequency in proportion to load current below the discontinuous conduction threshold, lowering gate drive and switching losses. This achieves >85% efficiency at 1-mA load-unattainable in FCCM-mode converters like the TPS566247DRLR-while maintaining regulation accuracy.
What is the purpose of the separate AGND pin on the TPS566242DRLR?
The AGND pin on the TPS566242DRLR provides a dedicated analog ground reference for the feedback amplifier and internal voltage reference, isolating noise from high-current power ground (GND). TI specifies connecting AGND and GND at a single point near the device to ensure optimal line/load regulation and thermal performance.
Can the TPS566242DRLR operate with ceramic output capacitors only?
Yes, the TPS566242DRLR's D-CAP3™ control topology includes internal ripple emulation, making it fully compatible with ultra-low-ESR ceramic capacitors (MLCCs) without requiring additional ESR or external compensation-enabling smaller, more reliable output filters than traditional voltage-mode controllers.
TPS566242DRLR 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):
- 3V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 6A
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS566242DRLR FAQ
1.How can I place an order for TPS566242DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS566242DRLR 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 TPS566242DRLR reliable?
The price and inventory of TPS566242DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS566242DRLR is usually 5 days.
3.What payment methods are accepted for TPS566242DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS566242DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS566242DRLR?
TPS566242DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS566242DRLR 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 TPS566242DRLR?
For technical support, including TPS566242DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS566242DRLR requirements.
6.How does Aetrix verify that TPS566242DRLR is sourced from the original manufacturer or authorized distributors?
All TPS566242DRLR 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 TPS566242DRLR meets industry standards.
7.What is the process for return or replacement of TPS566242DRLR?
All TPS566242DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS566242DRLR, 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 TPS566242DRLR part is unused and in its original packaging.
Return procedure for TPS566242DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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