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Texas Instruments TPS62250DRVT
- Part No.:
- TPS62250DRVT
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS62250DRVT.pdf
- Description:
- IC REG CONV USB 1OUT 1A 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
TPS62250DRVT from Texas Instruments is a synchronous step-down DC-DC converter optimized for USB-powered applications, delivering up to 600 mA output current with 2.25 MHz fixed-frequency PWM operation and automatic Power Save Mode (PFM) transition at light loads. It supports 2 V to 6 V input voltage, provides adjustable output from 0.6 V to VIN, and features ±1.5% output voltage accuracy in PWM mode - used in portable USB peripherals requiring compact, high-efficiency power conversion.
For engineers reviewing the TPS62250DRVT datasheet, TPS62250DRVT pinout, TPS62250DRVT application, or TPS62250DRVT equivalent, key selection criteria include its 2×2 mm SON-6 package, 15 µA quiescent current in PFM mode, 100% duty cycle low-dropout capability, MODE-pin controllable PWM/PFM transition, and integrated high-side/low-side MOSFETs with RDS(on) of 240 mΩ / 185 mΩ.
Technical Context
The TPS62250DRVT employs voltage-mode control with input voltage feed-forward for fast line/load regulation and uses internal high-side and low-side synchronous MOSFETs (RDS(on) typ. 240 mΩ / 185 mΩ) to eliminate external diode losses. Its 2.25 MHz oscillator enables use of small 2.2 µH inductors and 0603 ceramic capacitors, supporting sub-1 mm solution height.
Power Save Mode dynamically adjusts switching frequency below ~10 mA load, maintaining >85% efficiency down to 100 µA while positioning output voltage +1% above nominal to minimize load-step droop. MODE pin selection forces fixed-frequency PWM (for EMI-sensitive designs) or enables automatic PFM-to-PWM transition based on inductor current zero-crossing detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 6 V - matches USB host supply range and supports single-cell Li-ion/battery backup. |
| Output Current | Up to 600 mA - sufficient for USB peripherals including modems and PCTV tuners. |
| Switching Frequency | 2.25 MHz (fixed) - enables compact 2.2 µH inductor and 0603-size input/output capacitors. |
| Quiescent Current | 15 µA (PFM mode, no load) - extends battery life in always-on portable devices. |
| Output Voltage Accuracy | ±1.5% (PWM mode) - ensures stable core voltage for microcontrollers and RF ICs. |
| Duty Cycle | 100% - maintains regulation down to VIN ≈ VOUT, maximizing usable battery voltage range. |
| Shutdown Current | 0.1 µA - reduces system standby power in USB-suspended states. |
Pinout & Package
TPS62250DRVT is housed in a thermally enhanced 2×2×0.8 mm SON-6 package (DRVT suffix), featuring exposed thermal pad for PCB heat dissipation. The 6-pin layout supports minimal board area and low-profile (<1 mm) integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 5) | Power input | Accepts 2–6 V supply; connects to input capacitor and must be decoupled with ≥4.7 µF ceramic. |
| GND (Pin 6) | Power ground | Primary return path for input/output currents; tied directly to thermal pad for thermal performance. |
| EN (Pin 4) | Enable control | Active-high logic input; pulling low disables converter and reduces IQ to <1 µA. |
| FB (Pin 3) | Feedback node | Connects to resistor divider for adjustable output; internal 0.6 V reference sets VOUT = 0.6 × (1 + R1/R2). |
| SW (Pin 1) | Switch node | Drives external inductor; requires low-ESR ceramic capacitor and careful routing to minimize EMI. |
| MODE (Pin 2) | Operating mode select | Pull to GND for automatic PFM/PWM transition; pull to VIN for forced fixed-frequency PWM operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Maintains VOUT +1% during light loads to reduce undershoot during sudden load steps. |
| Synchronous Rectification | Integrated high-side/low-side MOSFETs eliminate external Schottky loss and improve efficiency >90% at mid-load. |
| Soft Start | Internal 500 µs startup ramp prevents inrush current and stabilizes output before system initialization. |
| Thermal Shutdown | Activates at 140°C junction temperature with 20°C hysteresis to protect against sustained overload conditions. |
| Undervoltage Lockout | Disables operation below 1.85 V (falling) to prevent brownout instability and battery over-discharge. |
Applications
| USB Wireless Modem | Portable USB PCTV Tuner |
|---|---|
Use Scenario: Compact USB-powered 3G/LTE modem requiring stable 1.8 V core rail under variable data transmission loads. IC Role / Device Role / Timing Role: Primary buck regulator supplying processor and RF transceiver; manages dynamic load transitions via PFM/PWM auto-switching. Use Value: 2.25 MHz switching allows tiny 2.2 µH inductor and 10 µF output cap, meeting strict size constraints while sustaining >85% efficiency from 100 µA to 600 mA. |
Use Scenario: Battery-backed USB TV tuner dongle needing efficient 3.3 V analog/digital rail with low-noise operation during video decoding. IC Role / Device Role / Timing Role: Adjustable-output DC-DC converter configured for 3.3 V; MODE pin held high for fixed-frequency PWM to simplify EMI filtering. Use Value: ±1.5% output accuracy and 100% duty cycle ensure clean, regulated power across full battery discharge curve (4.2 V → 2.8 V). |
| USB-C Powered IoT Sensor Hub | Low-Power USB Audio Interface |
Use Scenario: Multi-sensor node drawing intermittent 50–200 mA bursts from USB-C PD source, requiring ultra-low quiescent current between measurements. IC Role / Device Role / Timing Role: System power manager enabling deep sleep via EN pin control; leverages 15 µA PFM quiescent current to extend battery runtime. Use Value: Automatic PFM entry below 10 mA eliminates switching losses, achieving >92% efficiency at 100 µA load - critical for multi-year battery life. |
Use Scenario: USB audio interface with DAC/ADC requiring low-noise 1.2 V analog supply and 3.3 V digital rail, sensitive to switching ripple. IC Role / Device Role / Timing Role: Dual-rail generator (using two TPS62250DRVTs); one in forced PWM mode (MODE = VIN) for predictable noise spectrum, one in PFM for standby efficiency. Use Value: 22 pF FB capacitor option minimizes output ripple in PFM mode; soft-start prevents pop/click during USB enumeration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYT | Same 2×2 mm SON-6 package, 3 MHz switching, 400 mA output, lower IQ (12 µA), fixed 1.8 V/3.3 V options only. | Lacks adjustable output and MODE pin control; limited to pre-set voltages. | Select when fixed output and higher frequency are prioritized over flexibility and USB-wide input range. |
| MP2143GJ-Z | 2.5 MHz, 600 mA, 2.5–5.5 V input, 1.2–5.5 V adjustable output, but larger 3×3 mm QFN-10 package and no voltage positioning. | Higher minimum input voltage excludes 2 V USB-OTG sources; no dynamic VOUT boost for load transients. | Choose for wider output voltage range where board space permits larger footprint and thermal pad requirements differ. |
Compared with TPS62250DRVT, TPS62231DRYT trades adjustability and USB-optimized 2 V start-up for higher frequency and lower quiescent current, while MP2143GJ-Z offers broader output range at the cost of package size and missing voltage positioning - making TPS62250DRVT optimal for space-constrained, dynamically loaded USB peripherals.
Availability
TPS62250DRVT is available at Aetrix Electronics and suitable for portable USB peripherals, wireless modem designs, and low-profile embedded systems requiring stable component supply with tight thermal and size constraints.
Supply support for TPS62250DRVT 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.
The TPS62250DRVT belongs to TI's NanoPower™ synchronous buck converter family, designed specifically for USB-powered portable electronics demanding ultra-small footprint, high light-load efficiency, and seamless mode transition.
FAQ
What is the maximum output current capability of the TPS62250DRVT?
The TPS62250DRVT delivers up to 600 mA of continuous output current under typical operating conditions (TA = 25°C, VIN = 3.6 V). Its peak current limit is internally set to 1 A, supporting transient loads while maintaining stability with recommended 2.2 µH inductors and 10 µF output capacitance. Derating applies above 85°C ambient per the 76°C/W θJA rating.
How does the MODE pin affect TPS62250DRVT operation?
The MODE pin on the TPS62250DRVT selects between two operating modes: pulled low (to GND) enables automatic Power Save Mode with PFM/PWM transition based on load current, while pulled high (to VIN) forces fixed-frequency 2.25 MHz PWM operation regardless of load. This allows designers to prioritize efficiency (PFM) or EMI control (forced PWM) without changing external components.
Can the TPS62250DRVT support 1.2 V output voltage?
Yes, the TPS62250DRVT supports 1.2 V output via external resistor divider on the FB pin, as its adjustable output range spans 0.6 V to VIN. Using the internal 0.6 V reference, set R1/R2 = 1.0 to achieve VOUT = 1.2 V. Layout best practices include placing the divider close to FB and using ≤22 pF capacitor to minimize noise sensitivity and ensure ±1.5% accuracy in PWM mode.
What thermal considerations apply to the TPS62250DRVT in a 2×2 mm SON package?
The TPS62250DRVT in the DRVT package has a junction-to-ambient thermal resistance (θJA) of 76°C/W. To maintain TJ ≤125°C at 600 mA, PCB design must include a solid thermal pad connected to ≥2 cm² internal copper pour and ≥4 thermal vias to inner/ground layers. Efficiency above 85% at mid-load keeps self-heating manageable, but derating is required above 85°C ambient per the specified operating range.
Does the TPS62250DRVT include undervoltage lockout protection?
Yes, the TPS62250DRVT incorporates an undervoltage lockout (UVLO) circuit that disables the converter when input voltage falls below 1.85 V (typical, falling threshold). This prevents erratic operation during battery discharge or weak USB port conditions and protects downstream circuitry from brownout. UVLO hysteresis is not specified, but restart occurs once VIN rises above ~1.95 V.
TPS62250DRVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Converter, USB
- Voltage - Input:
- 2V ~ 6V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.6V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS62250DRVT FAQ
1.How can I place an order for TPS62250DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62250DRVT 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 TPS62250DRVT reliable?
The price and inventory of TPS62250DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62250DRVT is usually 5 days.
3.What payment methods are accepted for TPS62250DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62250DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62250DRVT?
TPS62250DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62250DRVT 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 TPS62250DRVT?
For technical support, including TPS62250DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62250DRVT requirements.
6.How does Aetrix verify that TPS62250DRVT is sourced from the original manufacturer or authorized distributors?
All TPS62250DRVT 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 TPS62250DRVT meets industry standards.
7.What is the process for return or replacement of TPS62250DRVT?
All TPS62250DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62250DRVT, 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 TPS62250DRVT part is unused and in its original packaging.
Return procedure for TPS62250DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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