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Texas Instruments TPS62273DRVT
- Part No.:
- TPS62273DRVT
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS62273DRVT.pdf
- Description:
- IC REG BUCK PROG 400MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:859
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Product details
Overview
TPS62273DRVT from Texas Instruments is a synchronous step-down DC-DC converter optimized for portable battery-powered systems. It delivers up to 400 mA output current from 2 V–6 V input, supports dual fixed output voltages (2.5 V and 3.3 V) selected via VSEL pin, operates at 2.25 MHz fixed frequency, and features automatic PFM/PWM mode transition for high efficiency across load range - used in low-power DSP and smartphone core supply rails.
For engineers reviewing the TPS62273DRVT datasheet, TPS62273DRVT pinout, TPS62273DRVT application, or TPS62273DRVT equivalent, key selection criteria include its 2×2 mm SON package, 15 µA quiescent current in active operation, 0.1 µA shutdown current, voltage positioning in PFM mode, and compatibility with small 2.2 µH inductors and 10 µF ceramic output capacitors for compact <1 mm height solutions.
Technical Context
The TPS62273DRVT employs a voltage-mode PWM controller with input voltage feed-forward for fast line/load regulation. Its internal synchronous rectification uses discrete high-side (240–480 mΩ) and low-side (180–380 mΩ) MOSFETs, enabling 100% duty cycle operation near dropout and thermal shutdown at 140°C with 20°C hysteresis.
Power Save Mode activates automatically below light-load thresholds, switching to PFM with single-threshold voltage positioning to maintain ±1% output ripple. The VSEL pin selects between 2.5 V (VSEL = GND) and 3.3 V (VSEL = VIN), using an internal precision resistor divider - no external feedback components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2 V to 6 V - supports full Li-ion battery discharge curve without external pre-regulation. |
| Output Voltage Options | 2.5 V (VSEL = 0) or 3.3 V (VSEL = 1) - factory-trimmed, no external resistors needed. |
| Max Output Current | 400 mA - sustained delivery under PWM mode; limited by internal current sense and thermal design. |
| Switching Frequency | 2.25 MHz (±12.5%) - enables use of tiny 2.2 µH inductors and 0603-size 10 µF ceramic capacitors. |
| Quiescent Current | 15 µA typical - maintains high light-load efficiency in always-on subsystems like RTC or sensor interfaces. |
| Shutdown Current | 0.1 µA - reduces system standby power for extended battery life in portable devices. |
| Package | 2 mm × 2 mm × 0.8 mm SON-6 with PowerPad - thermally enhanced for >1.3 W dissipation at TA = 25°C. |
Pinout & Package
The TPS62273DRVT is housed in a 2 mm × 2 mm, 6-pin SON package (DRV designation) with exposed thermal pad (PowerPad™). Pin 1 is SW (switch node), Pin 2 is VSEL (voltage select), Pin 3 is FB (feedback - internally connected for fixed-VOUT variants), Pin 4 is EN (enable), Pin 5 is VIN (input supply), and Pin 6 is GND (power ground).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switch node | Connects to inductor; carries high-frequency pulsed current; requires low-inductance layout to minimize EMI. |
| VSEL | Voltage select input | Logic-level control: GND → 2.5 V output, VIN → 3.3 V output; enables dynamic voltage scaling during processor sleep/wake transitions. |
| FB | Feedback input | Internally tied to precision divider for fixed outputs; must be shorted to VOUT - no external resistor network required. |
| EN | Enable input | Active-high logic: drives device into shutdown (<1 µA IQ) when pulled low; supports power-rail sequencing with other converters. |
| VIN | Input supply | Accepts 2–6 V; requires local 4.7 µF ceramic capacitor placed within 2 mm of pin for stable high-frequency operation. |
| GND | Power ground | Primary return path for high-current switch loop; must be solidly connected to PowerPad for thermal and EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic PFM/PWM mode transition | Eliminates manual mode control; maintains >85% efficiency from 10 µA to 400 mA load without external circuitry. |
| Voltage positioning in PFM mode | Regulates output to VOUT +1% threshold before pulsing, reducing output ripple to <15 mVpp with 10 µF COUT. |
| 100% duty cycle low-dropout operation | Extends usable battery life by sustaining regulation down to VIN ≈ VOUT + IOUT × (RDS(on)_HS + R_L). |
| Integrated PowerPad™ thermal enhancement | Reduces θJA to 76°C/W - enables full 400 mA output in 21.5 mm² footprint without heatsink or airflow. |
| Undervoltage lockout (UVLO) | Disables switching below 1.85 V falling threshold - prevents brownout operation and protects Li-ion cells from over-discharge. |
Applications
| Smartphone Application Processor Core Supply | Portable Media Player Audio Codec Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processors requiring dynamically scaled core voltage (e.g., 2.5 V during active mode, 3.3 V for I/O interface). IC Role / Device Role / Timing Role: Primary buck regulator delivering regulated core rail; VSEL pin synchronized with processor DVFS controller for real-time voltage adjustment. Use Value: Enables >30% reduction in active-mode power vs. fixed 3.3 V supply; 2.25 MHz switching avoids audible noise in speaker drivers. | Use Scenario: Supplies clean, low-noise 3.3 V bias to stereo audio DAC/ADC in flash-based MP3 players. IC Role / Device Role / Timing Role: Point-of-load converter with PFM-mode voltage positioning to minimize output ripple during playback pauses. Use Value: Achieves <15 mVpp output ripple at 10 µA load - eliminates need for post-LDO filtering and saves board space. |
| Digital Camera Image Sensor Bias Rail | GPS Navigation System Baseband Processor |
Use Scenario: Provides stable 2.5 V supply to CMOS image sensor during burst capture sequences with rapid load transients. IC Role / Device Role / Timing Role: Fast-transient response buck converter; leverages 2.25 MHz PWM and internal compensation for <250 µs VOUT ramp time. Use Value: Maintains <±1.5% output deviation during 0–300 mA step loads - prevents image artifacts and frame drop. | Use Scenario: Powers baseband SoC in automotive-grade GPS units operating from 12 V automotive supply via intermediate 5 V rail. IC Role / Device Role / Timing Role: Secondary buck stage converting 5 V to 3.3 V; EN pin controlled by MCU to enable/disable GPS module during sleep cycles. Use Value: Delivers 0.1 µA shutdown current - extends battery backup runtime to >72 hours in cold-start scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62260DRVR | Same 2×2 mm SON package; 2.25 MHz; but fixed 1.2 V output and no VSEL pin. | Lacks dual-voltage flexibility; suitable only for single-rail 1.2 V core supplies. | Choose when fixed 1.2 V output suffices and VSEL functionality is unnecessary. |
| TPS62740DSSR | Lower IQ (360 nA shutdown, 250 nA PFM); 300 mA max; 3.6 V–5.5 V VIN range. | Optimized for ultra-low-power coin-cell applications; incompatible with 2 V–6 V Li-ion input range. | Select only for sub-10 µA system standby targets where 400 mA capability is not required. |
Compared with TPS62273DRVT, TPS62260DRVR offers identical form factor and frequency but sacrifices voltage flexibility, while TPS62740DSSR trades output current and input range for nanoamp-level quiescent performance - neither provides pin-compatible dual-VOUT capability.
Availability
TPS62273DRVT is available at Aetrix Electronics and suitable for smartphone power management, portable media player subsystems, and GPS navigation baseband supplies requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for TPS62273DRVT 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 ICs, with decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS6227x family was designed specifically for space-constrained, battery-operated devices requiring high efficiency across wide load ranges - targeting mobile phones, navigation systems, and portable media players needing compact, low-profile power solutions.
FAQ
What output voltages does the TPS62273DRVT support?
The TPS62273DRVT supports two factory-programmed fixed output voltages: 2.5 V when VSEL is pulled low (GND), and 3.3 V when VSEL is pulled high (VIN). These values are trimmed internally - no external feedback resistors are required. The TPS62273DRVT datasheet specifies ±3% tolerance over temperature and line for both settings, with voltage positioning in PFM mode holding output within ±1% of nominal.
Can the TPS62273DRVT operate from a single-cell Li-ion battery?
Yes, the TPS62273DRVT operates across 2 V to 6 V input, fully covering the discharge curve of a single Li-ion cell (3.0 V–4.2 V nominal, down to ~2.5 V cutoff). Its 100% duty cycle capability sustains regulation even as VIN approaches VOUT, extending usable battery capacity. The undervoltage lockout (1.85 V falling threshold) prevents operation below safe cell voltage, protecting against over-discharge.
What is the minimum recommended output capacitor for stable TPS62273DRVT operation?
The TPS62273DRVT requires a minimum effective output capacitance of 3.5 µF for stable operation. Texas Instruments validates performance with a 10 µF, 0603-size X5R ceramic capacitor (e.g., GRM188R60J106M). Using less than 3.5 µF risks instability, especially under PFM mode, due to insufficient energy storage for voltage positioning. Larger values (up to 22 µF) further reduce output ripple and improve transient response.
Does the TPS62273DRVT require external compensation components?
No, the TPS62273DRVT uses internal compensation optimized for its 2.25 MHz switching frequency and standard 2.2 µH / 10 µF output filter. Because it is a fixed-output variant, the FB pin is internally connected to the precision voltage divider - no external resistors, capacitors, or RC networks are needed. This eliminates tuning effort and reduces BOM count, supporting designs targeting <21.5 mm² total solution area.
How does the TPS62273DRVT handle thermal overload conditions?
The TPS62273DRVT integrates thermal shutdown protection that disables both high-side and low-side MOSFETs when junction temperature exceeds 140°C (typical). Operation resumes automatically once temperature falls below 120°C (20°C hysteresis). This protects the IC and PCB during sustained high-current operation or poor thermal layout. The 2×2 mm SON package with PowerPad™ achieves 76°C/W θJA, allowing full 400 mA output at +85°C ambient with minimal copper area.
TPS62273DRVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V, 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 400mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS62273DRVT FAQ
1.How can I place an order for TPS62273DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62273DRVT 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 TPS62273DRVT reliable?
The price and inventory of TPS62273DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62273DRVT is usually 5 days.
3.What payment methods are accepted for TPS62273DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62273DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62273DRVT?
TPS62273DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62273DRVT 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 TPS62273DRVT?
For technical support, including TPS62273DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62273DRVT requirements.
6.How does Aetrix verify that TPS62273DRVT is sourced from the original manufacturer or authorized distributors?
All TPS62273DRVT 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 TPS62273DRVT meets industry standards.
7.What is the process for return or replacement of TPS62273DRVT?
All TPS62273DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62273DRVT, 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 TPS62273DRVT part is unused and in its original packaging.
Return procedure for TPS62273DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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