My Inquiry
My Account
Texas Instruments TPS62823DLCR
- Part No.:
- TPS62823DLCR
- Manufacturer:
- Texas Instruments
- Package:
- 8-PowerVFDFN
- Datasheet:
-
TPS62823DLCR.pdf
- Description:
- IC REG BUCK ADJ 3A 8VSON
- Quantity:
- Payment:
- Shipping:
Inventory:9,027
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62823DLCR from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 3-A continuous output current, operating from 2.4-V to 5.5-V input, with 1% feedback voltage accuracy (0.6 V to 4 V adjustable output), 2.2-MHz switching frequency, and 4-µA quiescent current. It serves as a high-efficiency POL regulator in space-constrained battery-powered systems.
For engineers reviewing the TPS62823DLCR datasheet, TPS62823DLCR pinout, TPS62823DLCR application, or TPS62823DLCR equivalent, key selection criteria include its DCS-Control™ topology for fast transient response, integrated 26-mΩ/25-mΩ power switches, active output discharge, seamless PWM-to-PSM mode transition, and QFN-8 (2.0 mm × 1.5 mm) package compatibility with small 470-nH inductors.
Technical Context
The TPS62823DLCR implements adaptive constant-on-time DCS-Control™ with stabilized 2.2-MHz nominal switching frequency in PWM mode and automatic transition to power-save mode (PSM) at light loads. Its control loop maintains tight regulation across -40°C to 125°C junction temperature while supporting 100% duty-cycle operation near VIN ≈ VOUT.
It integrates cycle-by-cycle current limiting (3.7–5.0 A), thermal shutdown (150°C), undervoltage lockout (2.2 V with 160-mV hysteresis), and open-drain power-good monitoring with window-comparator thresholds (94–98% rising, 90–94% falling). The internal soft-start circuit ensures controlled 1.25-ms startup into pre-biased outputs without inrush issues.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3 A continuous - supports high-current digital loads like SoCs and FPGAs without external current sharing. |
| Input Voltage Range | 2.4 V to 5.5 V - compatible with single-cell Li-ion, Li-polymer, and USB PD 5-V rails. |
| Feedback Accuracy | ±1% over -40°C to 125°C - enables precise core voltage regulation for modern processors requiring tight VDD tolerance. |
| Quiescent Current | 4 µA - extends battery life in always-on or low-power standby modes of portable devices. |
| Switching Frequency | 2.2 MHz typical - allows use of compact 470-nH inductors and reduces EMI filtering footprint. |
| Power Switch RDS(on) | 26 mΩ (HS), 25 mΩ (LS) - minimizes conduction loss and thermal rise at full 3-A load. |
| Protection Features | HICCUP short-circuit, thermal shutdown (150°C), UVLO (2.2 V), active output discharge - ensures robust system-level fault resilience. |
Pinout & Package
TPS62823DLCR is housed in a thermally enhanced 2.0 mm × 1.5 mm, 0.5-mm pitch QFN-8 (DLC) package with exposed thermal pad. Pin 1 is EN (enable), pin 2 is FB (feedback), pin 3 is AGND (signal ground), pin 4 is NC (no connect), pin 5 is PGND (power ground), pin 6 is SW (switch node), pin 7 is VIN (input supply), and pin 8 is PG (power good open-drain output).
| 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 converter and initiates active output discharge when low. |
| FB (Pin 2) | Feedback sensing node | Connects to resistor divider; regulates output to 0.6 V reference with ±1% accuracy; 10–50 nA leakage enables high-impedance divider design. |
| AGND (Pin 3) | Signal ground reference | Internally tied to PGND; provides low-noise reference for error amplifier and control circuitry; may be left floating if PCB layout isolates analog ground. |
| NC (Pin 4) | No-connect terminal | Internally unconnected; may be tied to VOUT, GND, or left floating per layout requirements-no electrical function. |
| PGND (Pin 5) | Power ground return | Primary return path for high-current switch node and input/output capacitors; must be connected directly to thermal pad and low-impedance ground plane. |
| SW (Pin 6) | Switch node | Drives external inductor; carries high di/dt switching current; requires short, low-inductance routing to minimize EMI and voltage spikes. |
| VIN (Pin 7) | Input power supply | Accepts 2.4–5.5 V; supplies internal bias and power switches; requires local 4.7-µF ceramic capacitor between VIN and PGND. |
| PG (Pin 8) | Power-good status output | Open-drain output; pulled high externally; asserts high-impedance when VFB is within 94–98% of target; includes 100-µs delay on rise and 20-µs deglitch on fall. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ topology | Delivers <10-µs load transient response with minimal output capacitance-critical for dynamic CPU/FPGA core voltage demands. |
| Seamless PWM-to-PSM transition | Eliminates audible noise and output voltage glitches during mode switching-enables quiet operation across full 0–3-A load range. |
| Active output discharge | Discharges VOUT via SW pin sink (75–400 mA) during shutdown-prevents back-powering of downstream circuitry and meets sequencing requirements. |
| 100% duty-cycle operation | Maintains regulation when VOUT approaches VIN (e.g., 4.5 V → 4.0 V), reducing dropout loss and enabling ultra-low headroom applications. |
| CISPR-11 Class B compliance | Meets radiated emissions limits without external shielding-simplifies EMI certification for consumer and industrial end equipment. |
Applications
| Mobile Computing Power Rails | Solid-State Drive Core Supply |
|---|---|
Use Scenario: Regulating 1.0-V or 1.2-V core voltage for ARM-based application processors in tablets and ultrabooks. IC Role / Device Role / Timing Role: Primary POL converter delivering up to 3-A peak current with sub-10-µs transient response to handle burst-mode CPU activity. Use Value: 4-µA quiescent current extends battery runtime in suspend states; 2.2-MHz switching enables compact 0603-size passive components. |
Use Scenario: Providing stable 3.3-V or 1.8-V VCCQ/VDD for NAND flash controllers and DRAM buffers in M.2 NVMe SSDs. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator with active discharge to meet PCIe hot-plug sequencing and reset timing requirements. Use Value: ±1% output accuracy ensures reliable NAND programming/erasing; HICCUP protection prevents catastrophic failure during NAND write aborts. |
| Factory Automation I/O Modules | Point-of-Sale Terminal Processors |
Use Scenario: Generating isolated 3.3-V logic supply from 5-V field bus in programmable logic controller (PLC) digital I/O cards. IC Role / Device Role / Timing Role: Robust DC-DC stage with thermal shutdown and UVLO, operating continuously in 70°C ambient industrial enclosures. Use Value: 150°C thermal shutdown with 20°C hysteresis prevents latch-up; QFN-8 package supports automated optical inspection (AOI) and reflow. |
Use Scenario: Powering dual-core ARM Cortex-A53 SoC and display interface in compact retail POS terminals with coin-cell backup. IC Role / Device Role / Timing Role: Main system regulator supporting dynamic voltage scaling (DVS) and rapid wake-from-sleep transitions. Use Value: Soft-start time of 1.25 ms prevents brownout during cold boot; PG signal synchronizes firmware initialization with rail stabilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62822DLCR | 2-A output current, identical 26-mΩ/25-mΩ RDS(on), same pinout and BOM | Limited to mid-range SoCs or dual-rail applications where peak current ≤2 A | Select when full 3-A capability is unnecessary-reduces cost and thermal margin without redesign. |
| TPS62864DLCR | 3-A, 6-V max input, 0.6-V min output, 1.8-MHz fSW, lower IQ (1.5 µA), no PG | Better suited for higher-input industrial rails (e.g., 5.5–6 V) but lacks power-good signaling | Choose for ultra-low-IQ battery longevity where PG monitoring is handled externally or omitted. |
Compared with TPS62822DLCR, the TPS62823DLCR delivers 50% higher output current in identical footprint; versus TPS62864DLCR, it trades 0.4-MHz lower switching frequency and higher IQ for integrated PG and tighter 2.4–5.5-V input optimization.
Availability
TPS62823DLCR is available at Aetrix Electronics and suitable for mobile computing, solid-state drive, and factory automation applications requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.
Supply support for TPS62823DLCR 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TPS6282x family was developed specifically for high-efficiency, space-constrained point-of-load conversion in battery-powered and thermally demanding applications-emphasizing low IQ, fast transient response, and scalable current capability across pin-compatible variants.
FAQ
What is the maximum continuous output current of the TPS62823DLCR?
The TPS62823DLCR delivers up to 3 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). This rating is validated across the full input range (2.4 V to 5.5 V) and output voltage range (0.6 V to 4 V), with derating required only above 125°C junction temperature. The TPS62823DLCR achieves this using integrated 26-mΩ high-side and 25-mΩ low-side MOSFETs.
Does the TPS62823DLCR support operation with a pre-biased output?
Yes, the TPS62823DLCR supports startup into a pre-biased output due to its internal soft-start architecture and controlled gate drive sequencing. During enable, the device ramps the output voltage without forcing reverse current into the pre-charged rail. This behavior is confirmed in the datasheet's Section 8.3.2 and enables safe integration in systems with multiple power domains or backup supplies. The TPS62823DLCR does not require external circuitry to manage pre-bias conditions.
What is the purpose of the NC pin (Pin 4) on the TPS62823DLCR?
Pin 4 of the TPS62823DLCR is designated NC (No Connect) and is internally unconnected. It may be left floating, tied to VOUT, or connected to GND based on mechanical or thermal layout needs-no electrical function is assigned. TI explicitly states this in the "Pin Functions" table (Section 6), confirming that NC has zero impact on regulation, efficiency, or protection behavior. Routing or soldering decisions for Pin 4 should prioritize thermal relief or manufacturability, not signal integrity.
How does the power-good (PG) signal behave during thermal shutdown on the TPS62823DLCR?
During thermal shutdown, the TPS62823DLCR forces the PG pin to logic low (sinking current), as defined in Table 1 of the datasheet. This occurs because the device exits regulation-causing VFB to fall outside the 94–98% window-and enters a protective state. PG remains low until junction temperature drops below the 130°C hysteresis threshold and output voltage re-stabilizes. The TPS62823DLCR's PG behavior is fully deterministic and documented for all fault conditions including UVLO, shutdown, and thermal events.
Can the TPS62823DLCR operate in 100% duty cycle mode, and what are the implications?
Yes, the TPS62823DLCR automatically enters 100% duty cycle mode when VOUT approaches VIN (e.g., 4.5 V input → 4.0 V output), turning on the high-side FET continuously while disabling the low-side FET. In this mode, output voltage equals VIN minus the drop across the high-side RDS(on) and inductor DCR. The TPS62823DLCR maintains regulation without oscillation or dropout-enabling ultra-low-headroom applications such as post-regulation of buck-boost outputs or LDO replacement in high-efficiency designs.
TPS62823DLCR 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)
TPS62823DLCR FAQ
1.How can I place an order for TPS62823DLCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62823DLCR 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 TPS62823DLCR reliable?
The price and inventory of TPS62823DLCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62823DLCR is usually 5 days.
3.What payment methods are accepted for TPS62823DLCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62823DLCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62823DLCR?
TPS62823DLCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62823DLCR 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 TPS62823DLCR?
For technical support, including TPS62823DLCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62823DLCR requirements.
6.How does Aetrix verify that TPS62823DLCR is sourced from the original manufacturer or authorized distributors?
All TPS62823DLCR 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 TPS62823DLCR meets industry standards.
7.What is the process for return or replacement of TPS62823DLCR?
All TPS62823DLCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62823DLCR, 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 TPS62823DLCR part is unused and in its original packaging.
Return procedure for TPS62823DLCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62823DLCR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
