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Texas Instruments TPS62824DMQR
- Part No.:
- TPS62824DMQR
- Manufacturer:
- Texas Instruments
- Package:
- 6-VFDFN
- Datasheet:
-
TPS62824DMQR.pdf
- Description:
- IC REG BUCK ADJ 1A 6VSON
- Quantity:
- Payment:
- Shipping:
Inventory:6,693
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Product details
Overview
TPS62824DMQR from Texas Instruments is a synchronous step-down DC/DC converter optimized for 1A output current, operating from 2.4V to 5.5V input and delivering adjustable 0.6V–4.0V output with ±1% accuracy over –40°C to 125°C. It integrates 26mΩ/25mΩ power MOSFETs, uses DCS-Control topology for fast transient response, and targets space-constrained portable and industrial point-of-load applications.
For engineers reviewing the TPS62824DMQR datasheet, TPS62824DMQR pinout, TPS62824DMQR application, or TPS62824DMQR equivalent, key selection criteria include its 4μA quiescent current in PSM mode, 2.2MHz fixed-frequency PWM operation, active output discharge, power-good signal, and thermal/short-circuit protection - all in a 1.5mm × 1.5mm 6-pin VSON-HR (DMQ) package.
Technical Context
The TPS62824DMQR implements adaptive constant-on-time DCS-Control with seamless transition between pulse-width modulation (PWM) at medium/heavy loads and power-save mode (PSM) at light loads - maintaining high efficiency across 0–1A output range without output voltage disturbance. Its control loop regulates via internal 600mV reference and supports start-up into prebiased outputs.
Functional modes include 100% duty-cycle operation for ultra-low dropout, hiccup-mode short-circuit protection triggered after 32 switching cycles, and thermal shutdown at 150°C with 20°C hysteresis. The device features an open-drain power-good output with 100μs rising-edge blanking and 20μs falling-edge deglitch delay, referenced to feedback voltage thresholds of 94–98% (rising) and 90–94% (falling).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4V to 5.5V - supports single-cell Li-ion, USB PD, and industrial 3.3V/5V rails without external LDO pre-regulation. |
| Output Current | 1A continuous - sufficient for powering microcontrollers, FPGAs, and sensor interfaces in compact systems. |
| Output Voltage Accuracy | ±1% over –40°C to 125°C - ensures stable core voltage for precision analog circuits and high-speed digital logic. |
| Quiescent Current | 4μA in PSM mode - extends battery life in always-on IoT sensors and wearable devices. |
| Switching Frequency | 2.2MHz nominal - enables use of small 0.47μH inductors and 10μF ceramic output capacitors, minimizing PCB footprint. |
| Package | 6-pin VSON-HR (DMQ), 1.5mm × 1.5mm - delivers highest power density among 1A buck converters in this family. |
| Protection Features | Thermal shutdown (150°C), hiccup short-circuit protection, UVLO (2.2V threshold), and active output discharge - reduces need for external fault-handling circuitry. |
Pinout & Package
The TPS62824DMQR is housed in a thermally enhanced 6-pin VSON-HR (DMQ) package measuring 1.5mm × 1.5mm with exposed thermal pad on bottom. Pin 1 is SW; pin 4 is GND; pin 6 is VIN - layout requires direct thermal connection of the exposed pad to PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic control: ≥1.0V enables regulation; ≤0.4V disables device and activates output discharge; must not float. |
| PG (Pin 2) | Power-good open-drain output | Sinks up to 1mA; requires external pullup ≤5.5V; asserts high-impedance when VFB ≥ 0.576V (96% of 0.6V ref); used for rail sequencing. |
| FB (Pin 3) | Feedback input | Connects to resistor divider for adjustable output; internal 600mV reference enables 0.6V–4.0V programming; leakage <0.05μA minimizes divider error. |
| GND (Pin 4) | Ground reference | Primary return path for control circuitry and power stage; must be low-impedance connection to thermal pad and system ground. |
| SW (Pin 5) | Switch node | Drives external inductor; carries high di/dt; requires tight layout with minimal trace length to reduce EMI and switching losses. |
| VIN (Pin 6) | Input power supply | Accepts 2.4V–5.5V; requires local 4.7μF ceramic capacitor placed adjacent to pin for high-frequency decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control topology | Delivers <10μs load transient response with minimal output capacitance - critical for FPGA core voltage stability during burst-mode operation. |
| 1% output voltage accuracy | Ensures consistent logic-level margins and ADC reference stability across temperature, eliminating need for post-production calibration. |
| 4μA quiescent current | Enables >1-year battery life in coin-cell-powered remote sensors operating at 10μA average system current. |
| Active output discharge | Forces output to ground within milliseconds of disable, preventing unintended wake-up or latch-up in multi-rail systems. |
| 100% duty-cycle operation | Maintains regulation down to VIN – VOUT ≈ 26mΩ × IOUT, enabling operation with minimal input-output differential in low-voltage systems. |
Applications
| Solid State Drive Power Management | Industrial PC Core Supply |
|---|---|
Use Scenario: Powers NAND flash controller and DRAM interface in M.2 SSDs with strict size and thermal constraints. IC Role / Device Role / Timing Role: Primary 1.2V/1.8V point-of-load regulator delivering clean, tightly regulated voltage with fast transient response to handle burst read/write loads. Use Value: 2.2MHz switching enables compact 0.47μH inductor + dual 10μF output caps, reducing total solution area by >35% vs. 500kHz alternatives. | Use Scenario: Supplies 3.3V I/O rail for industrial PC motherboard with wide input range (2.4–5.5V) and extended temperature operation. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting dynamic load steps from 10mA idle to 1A peak during peripheral enumeration. Use Value: ±1% output accuracy ensures PCIe slot signaling integrity; PG signal sequences downstream 1.8V and 1.0V rails reliably. |
| Analog Security Camera Sensor Bias | Portable Medical Diagnostic Device |
Use Scenario: Generates stable 2.5V bias for CMOS image sensor in battery-powered IP cameras requiring low noise and long runtime. IC Role / Device Role / Timing Role: Low-quiescent-current buck regulator operating in PSM at standby, transitioning seamlessly to PWM during video capture bursts. Use Value: 4μA IQ extends lithium-polymer battery life to >6 months in motion-detection-only mode; 100% duty cycle supports operation down to 2.55V input. | Use Scenario: Provides 1.8V core voltage for ARM Cortex-M based patient monitor with stringent EMC and reliability requirements. IC Role / Device Role / Timing Role: Safety-critical power stage with thermal shutdown, hiccup protection, and active discharge to prevent residual voltage hazards during servicing. Use Value: Integrated protection eliminates need for external fault monitoring ICs; 1.5mm × 1.5mm DMQ package fits within tight ECG electrode module footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62824ADMQ | Forced-PWM only (no PSM); 8mA IQ; identical 1A rating and pinout | Better output ripple and fixed frequency required - e.g., RF-sensitive medical imaging subsystems | Select TPS62824ADMQ when low-noise CCM operation outweighs battery-life benefits of PSM. |
| TPS62825DMQR | 2A output capability; same package, pinout, and feature set; higher RDS(on) not specified for 2A variant | Higher current headroom needed - e.g., future-proofing for FPGA core voltage with scalable logic utilization | Choose TPS62825DMQR if design may require >1A peak current or needs margin for aging/temperature derating. |
Compared with TPS62824DMQR, TPS62824ADMQ trades 4μA quiescent current for forced-PWM stability, while TPS62825DMQR doubles output current in identical footprint - enabling either lower noise or higher power scalability without PCB redesign.
Availability
TPS62824DMQR is available at Aetrix Electronics and suitable for solid-state drive power management, industrial PC core supplies, analog security camera sensor bias, and portable medical diagnostic devices requiring stable component supply and long-term production continuity.
Supply support for TPS62824DMQR 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 over 90 years of innovation in high-reliability electronic components.
The TPS6282x product line was designed specifically for ultra-compact, high-efficiency point-of-load conversion in battery-powered and thermally constrained applications - emphasizing low IQ, small solution size, and robust protection.
FAQ
What is the maximum output current supported by the TPS62824DMQR?
The TPS62824DMQR is rated for 1A continuous output current across its full operating temperature range of –40°C to 125°C. This rating assumes proper PCB thermal design with the exposed thermal pad soldered to a minimum 100mm² copper pour. Peak currents exceeding 1A may be tolerated briefly under transient conditions but are not guaranteed per specification.
Does the TPS62824DMQR support adjustable output voltage, and how is it configured?
Yes, the TPS62824DMQR supports adjustable output voltage from 0.6V to 4.0V using an external resistor divider connected to the FB pin. The feedback reference is 600mV, so R1 = R2 × (VOUT/0.6 − 1). R2 should be ≤100kΩ for optimal light-load efficiency; a typical 100kΩ R2 pairs with a 120pF feedforward capacitor for stability.
How does the power-good (PG) signal behave during startup and fault conditions for the TPS62824DMQR?
The TPS62824DMQR's PG pin is an open-drain output that remains low until VFB reaches 96% of nominal (e.g., 0.576V for 0.6V reference), then transitions to high-impedance. It asserts low during EN disable, UVLO (VIN < 2.2V), thermal shutdown (>150°C), or output undervoltage (<90% ref). A 100μs blanking time prevents false triggers on PG rising edge.
Can the TPS62824DMQR operate with input voltage close to the output voltage, and what is the minimum dropout?
Yes, the TPS62824DMQR supports 100% duty-cycle operation, allowing regulation when VIN approaches VOUT. Minimum dropout is determined by high-side FET RDS(on) (26mΩ) and inductor DCR - for example, at 1A output, dropout ≈ 26mV + (IOUT × DCR). This enables operation down to VIN = VOUT + 30mV in ideal conditions with low-DCR inductors.
What protection features are integrated into the TPS62824DMQR, and how do they activate?
The TPS62824DMQR integrates thermal shutdown (150°C trip, 20°C hysteresis), hiccup-mode short-circuit protection (triggers after 32 cycles, then 100μs off-time), undervoltage lockout (2.2V with 160mV hysteresis), and active output discharge on disable. All protections are fully internal - no external components required - and reset automatically upon fault clearance.
TPS62824DMQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-VFDFN
- 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:
- 1A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-VSON-HR (1.5x1.5)
TPS62824DMQR FAQ
1.How can I place an order for TPS62824DMQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62824DMQR 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 TPS62824DMQR reliable?
The price and inventory of TPS62824DMQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62824DMQR is usually 5 days.
3.What payment methods are accepted for TPS62824DMQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62824DMQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62824DMQR?
TPS62824DMQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62824DMQR 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 TPS62824DMQR?
For technical support, including TPS62824DMQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62824DMQR requirements.
6.How does Aetrix verify that TPS62824DMQR is sourced from the original manufacturer or authorized distributors?
All TPS62824DMQR 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 TPS62824DMQR meets industry standards.
7.What is the process for return or replacement of TPS62824DMQR?
All TPS62824DMQR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62824DMQR, 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 TPS62824DMQR part is unused and in its original packaging.
Return procedure for TPS62824DMQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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