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Texas Instruments TPS62823DLCT
- Part No.:
- TPS62823DLCT
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerVFDFN
- Datasheet:
-
TPS62823DLCT.pdf
- Description:
- IC REG BUCK ADJ 3A 8VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,538
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Product details
Overview
TPS62823DLCT from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 3 A output current at 0.6 V to 4 V adjustable output, operating from 2.4 V to 5.5 V input with 1% feedback voltage accuracy and 4 µA quiescent current. It employs DCS-Control™ topology for fast transient response and supports 100% duty-cycle operation in low-dropout conditions-ideal for point-of-load regulation in battery-powered SSDs and portable industrial terminals.
For engineers reviewing the TPS62823DLCT datasheet, TPS62823DLCT pinout, TPS62823DLCT application, or TPS62823DLCT equivalent, key selection considerations include its 2.2 MHz switching frequency, integrated 26 mΩ/25 mΩ power switches, seamless PWM-to-PSM mode transition, active output discharge, and QFN-8 (2.0 mm × 1.5 mm) thermal performance validated to 125°C junction temperature.
Technical Context
The TPS62823DLCT implements adaptive constant-on-time DCS-Control™ with stabilized 2.2 MHz nominal switching frequency, enabling tight DC regulation and sub-10 µs load transient recovery. Its dual-MOSFET power stage integrates a 26 mΩ high-side and 25 mΩ low-side switch, supporting continuous 3 A output under thermal limits defined by RθJA = 114.1°C/W on JEDEC PCB.
Functional modes include PWM (CCM) above half-inductor ripple current, PSM (DCM) at light loads with frequency scaling, and 100% duty-cycle operation when VIN − VOUT falls below the FET and inductor IR drop. Protection includes cycle-by-cycle current limit (4.3 A typ.), HICCUP short-circuit response, thermal shutdown at 150°C, and undervoltage lockout at 2.2 V with 160 mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3 A continuous - supports high-density POL rails for multi-core SoCs and FPGA I/O banks. |
| 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 stable core voltage regulation across automotive and industrial ambient extremes. |
| Quiescent Current | 4 µA - enables >10-year battery life in always-on sensor nodes and IoT edge devices. |
| Switching Frequency | 2.2 MHz typical - allows use of compact 470 nH inductors and minimizes EMI filter footprint. |
| Power Switch RDS(on) | 26 mΩ (HS) / 25 mΩ (LS) - reduces conduction loss to <120 mW at 3 A, easing thermal design. |
| Soft-Start Time | 1.25 ms - prevents inrush into pre-biased outputs and avoids brownout during cold-start sequencing. |
Pinout & Package
TPS62823DLCT is housed in a thermally enhanced 2.0 mm × 1.5 mm VQFN-8 (DLC) package with exposed thermal pad, optimized for high-power density and low-profile applications requiring minimal PCB area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable control input | Active-high logic; threshold ~0.9 V rise / 0.7 V fall; must not float; enables 50 nA shutdown current. |
| FB (Pin 2) | Feedback sensing node | Connects to resistor divider; regulates VOUT via 0.6 V reference; ±1% accuracy over full temp range. |
| AGND (Pin 3) | Analog ground reference | Internally tied to PGND; provides clean reference for error amplifier and bandgap; may be left floating. |
| NC (Pin 4) | No-connect terminal | Internally unconnected; may be tied to VOUT, GND, or left unconnected without impact. |
| PGND (Pin 5) | Power ground return | Primary return path for high-current SW node and internal FETs; requires low-impedance PCB pour. |
| SW (Pin 6) | Switch node | Drives external inductor; carries high di/dt; must be routed short and wide to minimize EMI and ringing. |
| VIN (Pin 7) | Main power input | Accepts 2.4–5.5 V; supplies internal bias and power switches; requires local 4.7 µF ceramic decoupling. |
| PG (Pin 8) | Open-drain power-good indicator | Signals valid regulation (94–108% VFB window); sinks ≤1 mA; needs external pull-up for host monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Enables <10 µs load transient response with no external compensation required-reduces design cycle time. |
| Seamless PWM/PSM transition | Maintains <10 mV output ripple across 10 µA–3 A load range without voltage glitch or mode-hopping artifacts. |
| Active output discharge | Drains VOUT via SW pin sink (75–400 mA) during shutdown-prevents back-powering of downstream circuitry. |
| HICCUP short-circuit protection | Limits average output power during overload by cycling 100 µs off-time-preserves reliability without latch-off. |
| CISPR-11 Class B compliance | Meets radiated emission limits without shielding or ferrite beads-simplifies EMI certification for end equipment. |
Applications
| SSD Power Management | Industrial Point-of-Sale Terminal |
|---|---|
|
Use Scenario: Regulating 1.2 V core and 1.8 V I/O rails for NVMe SSD controllers under bursty 3 A peak loads. IC Role / Device Role / Timing Role: Primary POL converter delivering tightly regulated, low-noise DC from 3.3 V or 5 V backplane. Use Value: 1% VFB accuracy and 2.2 MHz switching enable stable memory interface timing margins and reduced output capacitance. |
Use Scenario: Supplying 3.3 V logic and 5 V peripherals in compact retail terminals with battery backup. IC Role / Device Role / Timing Role: Main system regulator managing dynamic load steps from barcode scanners, displays, and thermal printers. Use Value: 4 µA quiescent current extends battery runtime during idle; 100% duty-cycle mode sustains output during brownout. |
| Factory Automation Sensor Node | Mobile Computing Module |
|
Use Scenario: Powering ultra-low-power microcontrollers and wireless transceivers in IP67-rated field sensors. IC Role / Device Role / Timing Role: Always-on supply rail with fast wake-up response and minimal standby loss. Use Value: Seamless PSM entry/exit eliminates voltage droop during MCU wake-from-sleep transitions. |
Use Scenario: Generating 0.85 V core voltage for ARM-based compute modules in handheld test equipment. IC Role / Device Role / Timing Role: High-efficiency buck converter interfacing directly with battery or USB-C PD source. Use Value: 26 mΩ/25 mΩ MOSFETs achieve >92% efficiency at 1.5 A, reducing thermal load in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62822DLCT | 2 A output current; identical pinout, package, and feature set except lower current rating and 35 mΩ HS RDS(on). | Suitable where peak load remains ≤2 A; offers same layout and BOM compatibility but lower thermal margin. | Select TPS62822DLCT only if verified max load is ≤2 A and thermal headroom permits higher conduction loss. |
| TPS62933RTER | 3 A, 2.5–5.5 V input, 1.5 MHz, 15 µA IQ, 0.5% VFB accuracy, 1.2 mm × 2.1 mm WSON-10 package. | Higher accuracy and lower noise, but larger package, different pinout, and no PG or 100% mode support. | Choose TPS62933RTER only when <0.5% regulation tolerance is mandatory and board space allows WSON-10 re-layout. |
Compared with TPS62822DLCT, the TPS62823DLCT delivers 50% higher output current with lower RDS(on) and identical footprint; versus TPS62933RTER, it trades 0.5% accuracy and lower IQ for PG signaling, 100% mode, and smaller 2.0 mm × 1.5 mm QFN-8 package-making it optimal for space-constrained, battery-sensitive POL designs requiring robust fault reporting.
Availability
TPS62823DLCT is available at Aetrix Electronics and suitable for point-of-load regulation in solid-state drives, industrial point-of-sale terminals, factory automation sensor nodes, and mobile computing modules requiring stable component supply across extended product lifecycles.
Supply support for TPS62823DLCT 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 technologies, with decades of leadership in high-efficiency DC-DC conversion.
The TPS6282x family was designed specifically for ultra-low-power, high-density point-of-load applications in portable, industrial, and computing systems-emphasizing minimal quiescent current, small inductor compatibility, and seamless light-load efficiency.
FAQ
What is the maximum continuous output current of the TPS62823DLCT?
The TPS62823DLCT delivers up to 3 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). This rating is validated with the 2.0 mm × 1.5 mm QFN-8 package and 470 nH inductor, and accounts for internal 26 mΩ/25 mΩ MOSFET conduction losses and thermal resistance of RθJA = 114.1°C/W on JEDEC PCB.
Does the TPS62823DLCT support 100% duty-cycle operation?
Yes, the TPS62823DLCT enters 100% duty-cycle mode when the input voltage approaches the output voltage-keeping the high-side FET fully on and the low-side FET off. This maintains regulation down to VIN − VOUT ≈ IOUT × RDS(on) + IOUT × DCRL, enabling operation during brownout or low-input conditions without dropout.
How does the TPS62823DLCT handle light-load efficiency?
The TPS62823DLCT automatically transitions from PWM to Power Save Mode (PSM) at light loads, reducing switching frequency while maintaining regulation. This achieves >85% efficiency at 100 µA load and preserves <10 mV output ripple-enabled by DCS-Control™ architecture and seamless mode transition without voltage glitch.
What is the purpose of the NC pin on the TPS62823DLCT?
Pin 4 (NC) on the TPS62823DLCT is internally not connected. It may be left floating, tied to VOUT, or connected to ground without affecting operation. TI explicitly states this pin has no electrical function and requires no routing or termination for functional or thermal performance.
Can the TPS62823DLCT start into a pre-biased output?
Yes, the TPS62823DLCT supports startup into a pre-biased output-a critical capability for hot-swap and rail-sequencing applications. Its soft-start circuitry controls the output voltage ramp without drawing reverse current from the pre-charged rail, preventing bus disturbance or damage to downstream components.
TPS62823DLCT 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:
- 3A
- 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)
TPS62823DLCT FAQ
1.How can I place an order for TPS62823DLCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62823DLCT 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 TPS62823DLCT reliable?
The price and inventory of TPS62823DLCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62823DLCT is usually 5 days.
3.What payment methods are accepted for TPS62823DLCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62823DLCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62823DLCT?
TPS62823DLCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62823DLCT 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 TPS62823DLCT?
For technical support, including TPS62823DLCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62823DLCT requirements.
6.How does Aetrix verify that TPS62823DLCT is sourced from the original manufacturer or authorized distributors?
All TPS62823DLCT 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 TPS62823DLCT meets industry standards.
7.What is the process for return or replacement of TPS62823DLCT?
All TPS62823DLCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62823DLCT, 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 TPS62823DLCT part is unused and in its original packaging.
Return procedure for TPS62823DLCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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