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Texas Instruments TPS62822DLCR
- Part No.:
- TPS62822DLCR
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerVFDFN
- Datasheet:
-
TPS62822DLCR.pdf
- Description:
- IC REG BUCK ADJ 2A 8VSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,653
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Product details
Overview
TPS62822DLCR from Texas Instruments is a 2-A synchronous step-down DC-DC converter with DCS-Control™ topology, 2.4–5.5 V input range, 0.6–4 V adjustable output, and 1% feedback voltage accuracy over –40°C to 125°C. It delivers high efficiency at light loads via seamless PWM/PSM transition and supports 100% duty-cycle operation for low-dropout applications such as portable SSD power rails.
For engineers reviewing the TPS62822DLCR datasheet, TPS62822DLCR pinout, TPS62822DLCR application, or TPS62822DLCR equivalent, key selection criteria include its 2.2-MHz switching frequency, 4-µA quiescent current, integrated power-good (PG) and enable (EN) functions, active output discharge, and QFN-8 (2.0 × 1.5 mm) package compatibility with space-constrained POL designs.
Technical Context
The TPS62822DLCR implements adaptive constant-on-time DCS-Control™ architecture, enabling fast transient response and stable 2.2-MHz switching across input and load variations. Its internal high-side/low-side MOSFETs feature 35-mΩ/25-mΩ RDS(on), supporting up to 2 A continuous output with cycle-by-cycle current limiting and HICCUP short-circuit protection.
It operates in PWM mode under medium-to-heavy loads and transitions seamlessly into Power Save Mode (PSM) at light loads-maintaining high efficiency without output voltage disturbance. The device includes undervoltage lockout (2.2 V threshold), thermal shutdown (150°C), and an internal soft-start (1.25 ms) for controlled startup into pre-biased outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - sufficient for dual-core SoC core rails or SSD controller power domains. |
| Input Voltage Range | 2.4 V to 5.5 V - compatible with single-cell Li-ion, USB PD, and 3.3-V/5-V system rails. |
| Feedback Accuracy | ±1% over –40°C to 125°C - ensures tight regulation for sensitive logic supplies like DDR I/O or PCIe SerDes. |
| Quiescent Current | 4 µA - enables >1-year battery life in always-on IoT sensor nodes with ultra-low standby power. |
| Switching Frequency | 2.2 MHz typical - allows use of compact 470-nH inductors and reduces EMI filtering footprint. |
| Package | QFN-8 (2.0 × 1.5 mm, 0.4-mm pitch) - supports high-density PCB layouts with thermal pad for efficient heat dissipation. |
| Protection Features | HICCUP current limit, thermal shutdown (150°C), UVLO (2.2 V), and active output discharge - eliminates external supervision circuitry. |
Pinout & Package
TPS62822DLCR is housed in a thermally enhanced 2.0 mm × 1.5 mm VQFN-8 package with wettable flanks and an exposed thermal pad (PGND-connected). Pin 1 is marked by a dot; pins are numbered counterclockwise from top-left in top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable control input | Active-high logic; threshold ~0.9 V (rising), ~0.7 V (falling); must not be left floating - enables/disables regulator and triggers active discharge. |
| FB (Pin 2) | Feedback sensing node | Connects to resistor divider from VOUT; regulates output to 0.6 V reference with ±1% accuracy - sets final VOUT = 0.6 × (1 + R1/R2). |
| AGND (Pin 3) | Analog ground reference | Internally tied to PGND; provides clean reference for error amplifier - recommended to tie externally to PGND near IC for noise immunity. |
| NC (Pin 4) | No-connect terminal | Internally unconnected; may be left floating, tied to VOUT, or grounded - no electrical function. |
| PGND (Pin 5) | Power ground return | Main return path for high-current switch node; must be connected directly to thermal pad and low-impedance ground plane. |
| SW (Pin 6) | Switch node | Connects to inductor and high-side/low-side FETs; carries high di/dt - requires short, wide trace and adjacent PGND pour for EMI control. |
| VIN (Pin 7) | Input power supply | Accepts 2.4–5.5 V; requires local 4.7-µF ceramic capacitor between VIN and PGND - placed within 3 mm of pins 5 and 7. |
| PG (Pin 8) | Open-drain power-good indicator | Signals valid regulation (high-Z) when VFB is within 94–107% of target; sinks ≤1 mA - requires external pull-up to monitored rail or system supervisor. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Delivers <10-µs load transient response with minimal output capacitance - critical for burst-mode processors and FPGA configuration rails. |
| Seamless PWM/PSM transition | Eliminates audible noise and output voltage glitches during mode switching - essential for noise-sensitive audio or RF subsystems. |
| 100% duty-cycle operation | Enables VOUT up to VIN − (IOUT × RDS(on)) - supports low-dropout operation in battery-powered systems nearing end-of-life voltage. |
| Internal soft-start (1.25 ms) | Prevents inrush current and stabilizes startup into pre-biased outputs - avoids brownout on shared system rails. |
| Active output discharge | Drains VOUT to <0.4 V within milliseconds after EN deactivation - satisfies safety requirements for rapid power-down in industrial controllers. |
Applications
| Portable SSD Power Supply | POL for Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Powering NVMe SSD controller and NAND flash from a 3.3-V or 5-V system rail in handheld diagnostic equipment. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated 1.2 V or 1.8 V at up to 2 A with fast transient response to handle NAND program/erase bursts. Use Value: 1% output accuracy and DCS-Control™ ensure stable memory interface timing; 4-µA IQ extends battery runtime between recharges. |
Use Scenario: Generating isolated 3.3-V logic supply for digital I/O expansion modules in factory automation PLCs. IC Role / Device Role / Timing Role: Compact, robust DC-DC stage converting 24-V field bus down to 3.3 V with built-in fault protection and thermal monitoring. Use Value: HICCUP current limit and 150°C thermal shutdown prevent cascade failures; QFN-8 footprint saves board space in DIN-rail mounted enclosures. |
| Mobile Point-of-Sale Terminal Core Rail | Smart Building Sensor Node Power |
|
Use Scenario: Supplying 0.9-V core voltage to ARM Cortex-A53 processor in compact retail POS terminals powered by USB-C PD. IC Role / Device Role / Timing Role: High-efficiency buck converter operating from 5-V USB input, dynamically adjusting output during CPU load changes. Use Value: 2.2-MHz switching enables small 470-nH inductor and 10-µF output caps; seamless PSM maintains >85% efficiency at 10-mA standby current. |
Use Scenario: Providing regulated 3.3-V supply for BLE/Wi-Fi SoC and environmental sensors in battery-operated smart thermostats. IC Role / Device Role / Timing Role: Ultra-low-IQ DC-DC regulator enabling multi-year operation on two AA cells while supporting periodic wireless wake-ups. Use Value: 4-µA quiescent current minimizes self-discharge; active discharge ensures safe reset during firmware updates or brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62821DLCR | 1-A rated; identical pinout, BOM, and features - lower current capability only. | Suitable where peak load ≤1 A; lower cost but cannot support 2-A SSD or processor rails. | Select TPS62821DLCR only if verified max load stays below 1 A - avoids overdesign and saves BOM cost. |
| TPS62823DLCR | 3-A rated; same package, pinout, and feature set - higher RDS(on) (26 mΩ HS) and current limit (3.7 A min). | Required for future-proofing or higher-power variants (e.g., quad-core SoCs); adds margin for thermal derating. | Choose TPS62823DLCR when design headroom or scalability beyond 2 A is needed - no layout change required. |
Compared with TPS62821DLCR and TPS62823DLCR, the TPS62822DLCR offers optimal balance of current capability, thermal performance, and cost for 2-A POL applications - matching the exact load requirement without over- or under-specification.
Availability
TPS62822DLCR is available at Aetrix Electronics and suitable for portable SSD power supplies, industrial PLC I/O modules, mobile point-of-sale terminals, and smart building sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62822DLCR 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 technologies, with decades of expertise in high-reliability DC-DC conversion solutions.
The TPS6282x family was designed specifically for space-constrained, high-efficiency point-of-load applications in battery-powered and industrial systems - emphasizing ultra-low IQ, fast transient response, and seamless light-load operation.
FAQ
What is the maximum continuous output current supported by the TPS62822DLCR?
The TPS62822DLCR supports up to 2 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Its current limit is specified at 2.7–3.7 A (typical 3.3 A), providing headroom for transient peaks. Derating is required above 85°C ambient or with insufficient copper area.
Does the TPS62822DLCR require an external feed-forward capacitor (CFF) for stability?
The TPS62822DLCR does not require CFF for basic stability - it is internally compensated for standard LC filters. However, adding a 120-pF CFF across R1 improves transient response bandwidth and phase margin, especially with larger output capacitors (>22 µF) or demanding load-step applications like processor cores.
Can the TPS62822DLCR operate with a 2.4-V input and deliver 2.5-V output?
Yes - the TPS62822DLCR supports 2.4–5.5-V input and 0.6–4-V adjustable output. At VIN = 2.4 V and VOUT = 2.5 V, it enters 100% duty-cycle mode: the high-side FET remains on continuously, and regulation depends on RDS(on) and inductor DCR. Output accuracy remains within ±1% of target.
How does the power-good (PG) signal behave during startup and fault conditions?
The PG pin of the TPS62822DLCR goes high-impedance ~100 µs after VFB reaches 94% of target during startup. It pulls low during EN disable, UVLO (VIN < 2.2 V), thermal shutdown (TJ > 150°C), or output undervoltage. PG has a 20-µs deglitch delay to reject noise-induced false trips.
Is the TPS62822DLCR RoHS-compliant and halogen-free?
Yes - the TPS62822DLCR is manufactured in accordance with TI's Green Standard, meeting RoHS Directive 2011/65/EU and JEDEC JS-001/JS-002 for halogen-free materials (Br < 900 ppm, Cl < 900 ppm, total halogens < 1500 ppm).
TPS62822DLCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerVFDFN
- 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):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 4V
- Current - Output:
- 2A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSON-HR (2x1.5)
TPS62822DLCR FAQ
1.How can I place an order for TPS62822DLCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62822DLCR 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 TPS62822DLCR reliable?
The price and inventory of TPS62822DLCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62822DLCR is usually 5 days.
3.What payment methods are accepted for TPS62822DLCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62822DLCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62822DLCR?
TPS62822DLCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62822DLCR 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 TPS62822DLCR?
For technical support, including TPS62822DLCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62822DLCR requirements.
6.How does Aetrix verify that TPS62822DLCR is sourced from the original manufacturer or authorized distributors?
All TPS62822DLCR 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 TPS62822DLCR meets industry standards.
7.What is the process for return or replacement of TPS62822DLCR?
All TPS62822DLCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62822DLCR, 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 TPS62822DLCR part is unused and in its original packaging.
Return procedure for TPS62822DLCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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