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Texas Instruments TPS565242DRLR
- Part No.:
- TPS565242DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS565242DRLR.pdf
- Description:
- IC REG BUCK ADJ 5A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,770
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Product details
Overview
TPS565242DRLR from Texas Instruments is a 5-A synchronous buck converter in SOT-563 package, operating from 3 V to 16 V input and delivering 0.6 V to 7 V output with ±1% reference accuracy at 25°C, 120 µA quiescent current, and D-CAP3™ control for fast transient response in LCD TV power rails and IP camera DC/DC stages.
For engineers reviewing the TPS565242DRLR datasheet, TPS565242DRLR pinout, TPS565242DRLR application, or TPS565242DRLR equivalent, key selection criteria include Eco-mode efficiency at light load, 600-kHz fixed switching frequency, integrated 28.2-mΩ/15.1-mΩ FETs, 1.39-ms soft-start, and support for prebiased startup in space-constrained embedded power designs.
Technical Context
The TPS565242DRLR implements D-CAP3™ adaptive on-time control with internal ripple generation, enabling stable operation with ultra-low-ESR ceramic capacitors without external compensation. It features dual ground pins (GND and AGND) for optimized thermal and regulation performance, and supports up to 98% duty cycle via frequency foldback below 200 kHz.
Eco-mode operation enables discontinuous conduction mode (DCM) at light loads, reducing switching frequency proportionally to load current while maintaining high efficiency. Protection includes non-latching UVLO (2.72–2.92 V), OVP (115–125% VOUT), UVP hiccup (55–65% VOUT), cycle-by-cycle OCL (5.3–8.5 A), 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 consumer DC supplies including 5 V, 12 V, and 15 V rails. |
| Output Current | 5 A continuous - delivers full rated current in SOT-563 package with RθJA = 131.1°C/W (JEDEC standard board). |
| Reference Voltage | 600 mV ±1% at 25°C - enables precise output regulation down to 0.6 V with minimal feedback divider error. |
| Quiescent Current | 120 µA - sustains high efficiency at microamp-level loads typical in always-on video doorbell standby modes. |
| Switching Frequency | 600 kHz nominal - balances EMI, inductor size, and efficiency; varies with VIN/VOUT ratio and load in Eco-mode. |
| FET RDS(ON) | 28.2 mΩ (HS), 15.1 mΩ (LS) at 25°C - minimizes conduction loss and thermal rise under 5-A continuous operation. |
| Soft-Start Time | 1.39 ms fixed - prevents inrush current during power-up of FPGA core or SoC I/O rails. |
Pinout & Package
SOT-563 (6-pin) package: 1.60 mm × 1.60 mm footprint with 0.5-mm pitch, optimized for thermal dissipation and compact layout in space-constrained applications such as Wi-Fi access point PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage supply | Accepts 3–16 V DC; connects to bulk input capacitor and must be decoupled near pin 1. |
| SW | Switch node | Drives external inductor; high dv/dt node requiring tight loop area and ground stitching to minimize EMI. |
| GND | Power ground | Source terminal of low-side FET and main return path for high-current switching loops. |
| AGND | Analog ground | Reference ground for FB, EN, and internal circuitry; must be connected to GND plane for optimal line/load regulation. |
| EN | Enable input | Logic-level control (1.07–1.33 V threshold); pulled low by default; supports sequencing and remote ON/OFF. |
| FB | Feedback input | Monitors output via resistor divider; 600-mV 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 | Maintains >85% efficiency at 10-mA load by entering DCM and scaling switching frequency with output current. |
| D-CAP3™ control topology | Eliminates need for external compensation components and enables stable regulation with MLCC-only output filters. |
| Prebiased soft-start | Allows safe startup into precharged output (e.g., hot-swap systems), preventing reverse current flow through the low-side FET. |
| Integrated protection suite | Includes non-latching UVLO, hiccup-mode UVP, OVP with 24-µs deglitch, cycle-by-cycle OCL, and thermal shutdown at 155°C. |
| 98% max duty cycle support | Enables high-VIN-to-low-VOUT conversion (e.g., 12 V → 1.05 V) with extended on-time and reduced frequency foldback. |
Applications
| IP Network Camera Power | Streaming Media Player Core Rail |
|---|---|
Use Scenario: Powers image sensor, ISP, and Wi-Fi SoC in battery-backed or PoE-powered indoor/outdoor cameras. IC Role / Device Role / Timing Role: Primary 1.05-V or 1.2-V core regulator delivering up to 5 A with fast load-step response to motion-triggered processing bursts. Use Value: Eco-mode extends battery life in standby; D-CAP3 ensures stable 20-mV ripple during 2.5-A transient steps per TI design example. |
Use Scenario: Supplies 3.3-V I/O and 1.05-V CPU core in HDMI streaming sticks and set-top boxes with thermal constraints. IC Role / Device Role / Timing Role: High-density buck converter replacing discrete controllers + MOSFETs; operates from 5-V or 12-V adapter input. Use Value: SOT-563 footprint saves >30% board area vs. SO-8 alternatives; 120-µA IQ reduces no-load power in always-on HDMI-CEC mode. |
| Small Business Router PHY Supply | Video Doorbell System-on-Chip Rail |
Use Scenario: Generates clean 1.8-V or 2.5-V supply for Ethernet PHYs and switch controllers in compact rack-mount routers. IC Role / Device Role / Timing Role: Secondary regulated rail with tight line/load regulation enabled by AGND separation and 600-mV reference accuracy. Use Value: Dual ground structure improves PSRR >60 dB at 100 kHz; supports start-up with prebiased 1.8-V bus during firmware update sequences. |
Use Scenario: Powers ARM Cortex-M or RISC-V SoC and image signal processor in battery-operated video doorbells with motion detection. IC Role / Device Role / Timing Role: Main system regulator handling 5-A peak during wake-from-sleep video capture and Wi-Fi upload. Use Value: 1.39-ms soft-start prevents brownout during cold boot; hiccup-mode UVP protects against faulty output capacitor failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS565247DRLR | FCCM mode (fixed 600-kHz frequency), higher 400-µA IQ, supports negative inductor current and NOC protection. | Better for low-ripple noise-sensitive analog rails (e.g., ADC reference supplies); less efficient at light load than TPS565242DRLR. | Select TPS565247DRLR when constant frequency and minimal output voltage ripple outweigh light-load efficiency needs. |
| MP2359DJ-LF-Z | 4-A rating, 4.5–24-V input, 340-kHz fixed frequency, no Eco-mode, requires external compensation. | Suitable for cost-sensitive industrial controls where 5-A headroom and D-CAP3 simplicity are not required. | Choose MP2359DJ-LF-Z only if design tolerates larger solution size, lower efficiency at <100 mA, and added compensation design effort. |
Compared with TPS565247DRLR and MP2359DJ-LF-Z, the TPS565242DRLR uniquely combines 5-A capability, Eco-mode efficiency down to µA loads, and zero-compensation D-CAP3 control in a 1.6-mm × 1.6-mm package-making it optimal for battery-aware, space-constrained embedded systems.
Availability
TPS565242DRLR is available at Aetrix Electronics and suitable for LCD TV power management, IP network camera DC/DC conversion, and streaming media player core rail applications requiring stable component supply across production lifecycles.
Supply support for TPS565242DRLR 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 specializing in analog, embedded processing, and power management ICs, with leadership in high-efficiency DC/DC conversion and automotive-grade reliability.
The TPS565242DRLR belongs to TI's TPS56524x family of high-density synchronous buck converters designed specifically for space-constrained consumer and industrial applications demanding low IQ, fast transient response, and simplified layout.
FAQ
What is the maximum continuous output current supported by the TPS565242DRLR?
The TPS565242DRLR supports 5-A continuous output current under recommended operating conditions (TJ ≤ 125°C, VIN = 12 V, VOUT = 3.3 V, 2-layer PCB with 2-oz copper). Derating applies above 85°C ambient due to RθJA = 131.1°C/W; actual current depends on layout, airflow, and thermal vias. The TPS565242DRLR datasheet specifies IO = 0–6 A in Recommended Operating Conditions, but 5 A is the validated continuous rating per thermal testing on the EVM.
Does the TPS565242DRLR require external compensation components?
No, the TPS565242DRLR does not require external compensation components. Its D-CAP3™ control topology integrates internal compensation and ripple generation, enabling stable operation with ceramic output capacitors alone. This eliminates the need for type-II or type-III compensation networks, reducing BOM count and layout complexity-confirmed in Section 7.3.1 and Figure 7-2 of the TPS565242DRLR datasheet.
Can the TPS565242DRLR start up with a prebiased output voltage?
Yes, the TPS565242DRLR supports prebiased soft-start. When the output capacitor is precharged, the device delays switching until the internal reference voltage ramps above the FB pin voltage, preventing reverse current flow through the low-side FET. This behavior is explicitly documented in Section 7.3.3 and verified in Figure 8-1 typical application schematic of the TPS565242DRLR datasheet.
What is the purpose of the separate AGND and GND pins on the TPS565242DRLR?
The TPS565242DRLR uses separate AGND and GND pins to isolate analog reference circuitry from high-current power ground paths. AGND serves as the reference for FB, EN, and internal regulators, improving line/load regulation and noise immunity. Both pins must be connected to the same low-impedance ground plane-TI recommends direct connection near the IC-to ensure optimal thermal performance and regulation accuracy per Section 3 and Figure 5-1 of the TPS565242DRLR datasheet.
How does Eco-mode improve light-load efficiency in the TPS565242DRLR?
Eco-mode in the TPS565242DRLR improves light-load efficiency by transitioning into discontinuous conduction mode (DCM) as load decreases, reducing switching frequency proportionally to output current. This lowers gate drive and switching losses while maintaining >85% efficiency at 10-mA load-verified in Figure 6-11 and described in Sections 7.4.1 and 7.3.2 of the TPS565242DRLR datasheet. Unlike FCCM mode, Eco-mode avoids unnecessary switching cycles at very light loads.
TPS565242DRLR 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:
- 5A
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS565242DRLR FAQ
1.How can I place an order for TPS565242DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS565242DRLR 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 TPS565242DRLR reliable?
The price and inventory of TPS565242DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS565242DRLR is usually 5 days.
3.What payment methods are accepted for TPS565242DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS565242DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS565242DRLR?
TPS565242DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS565242DRLR 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 TPS565242DRLR?
For technical support, including TPS565242DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS565242DRLR requirements.
6.How does Aetrix verify that TPS565242DRLR is sourced from the original manufacturer or authorized distributors?
All TPS565242DRLR 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 TPS565242DRLR meets industry standards.
7.What is the process for return or replacement of TPS565242DRLR?
All TPS565242DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS565242DRLR, 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 TPS565242DRLR part is unused and in its original packaging.
Return procedure for TPS565242DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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