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Texas Instruments TPS62270DRVT
- Part No.:
- TPS62270DRVT
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS62270DRVT.pdf
- Description:
- IC REG BUCK PROG 400MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:383
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Product details
Overview
TPS62270DRVT from Texas Instruments is a synchronous step-down DC-DC converter optimized for Li-ion battery-powered portable electronics. It delivers up to 400 mA output current with selectable fixed outputs of 0.9 V or 1.15 V, operates from 2 V to 6 V input, and features 2.25 MHz fixed-frequency PWM with automatic PFM transition at light load - enabling compact power supply design in mobile phones and low-power DSPs.
For engineers reviewing the TPS62270DRVT datasheet, TPS62270DRVT pinout, TPS62270DRVT application, or TPS62270DRVT equivalent, key selection criteria include its dual-output voltage selectability via VSEL, 15 µA quiescent current in operating mode, 100% duty cycle capability for ultra-low dropout, 2×2 mm SON-6 package footprint, and integrated high/low-side MOSFETs with confirmed RDS(on) values (240 mΩ / 180 mΩ typical).
Technical Context
The TPS62270DRVT employs voltage-mode control with input voltage feed-forward for fast line/load regulation and stable operation with small ceramic capacitors. Its 2.25 MHz oscillator enables use of sub-3 mm inductors (e.g., 2.2 µH) and 10 µF output capacitance while maintaining <1 mm solution height.
Power Save Mode dynamically transitions between PWM and PFM based on inductor current zero-crossing detection; PFM uses a single-threshold comparator with voltage positioning (VOUT +1%) to minimize ripple. The 100% duty cycle mode activates near dropout, sustaining regulation down to VIN ≈ VOUT + IOUT × (RDS(on) + RL).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 6 V - supports full discharge curve of single-cell Li-ion batteries (3.0 V–4.2 V nominal, down to ~2.5 V usable). |
| Output Voltage Options | 0.9 V (VSEL = 0) or 1.15 V (VSEL = 1) - factory-trimmed, no external resistors required; enables dynamic core voltage scaling. |
| Max Output Current | 400 mA - sustained under thermal limits; limited by internal current sense and thermal shutdown (140°C trip). |
| Switching Frequency | 2.25 MHz (typical) - enables compact 2.2 µH inductor and 10 µF ceramic output capacitor; fixed frequency simplifies EMI filtering. |
| Quiescent Current | 15 µA (typical) - measured at 0 mA load, non-switching; ensures >100-hour standby in battery-critical applications. |
| Shutdown Current | 0.1 µA (typical) - achieved when EN = GND; preserves battery life during system sleep states. |
| Package | 2 mm × 2 mm × 0.8 mm SON-6 with PowerPad - thermally enhanced, 76°C/W junction-to-ambient, supports <21.5 mm² total PCB area. |
Pinout & Package
TPS62270DRVT is housed in a 2 mm × 2 mm, 6-pin SON package (DRV designation) with exposed thermal pad (PowerPad™). Pin 1 is SW; pin 6 is GND. The package supports reflow soldering and provides low thermal resistance (76°C/W) for continuous 400 mA operation at ambient ≤85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Switch node | Connects to internal high-side and low-side MOSFETs; requires direct connection to inductor; carries high di/dt switching current. |
| VSEL (Pin 2) | Voltage select input | Digital logic input (0 = 0.9 V, 1 = 1.15 V); must be driven to GND or VIN; enables real-time core voltage scaling without external components. |
| FB (Pin 3) | Feedback input | Internally connected to precision resistor divider; shorted to VOUT in fixed-output mode; not used for external adjustment. |
| EN (Pin 4) | Enable input | Active-high logic control; pulls device into shutdown (<1 µA) when low; supports power sequencing with other rails. |
| GND (Pin 5) | Ground reference | Primary analog and power ground; connects to exposed PowerPad for thermal and electrical integrity. |
| VIN (Pin 6) | Input power supply | Accepts 2–6 V; requires local 4.7 µF ceramic decoupling; feeds internal LDO for bias and gate drive circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-selectable dual output | 0.9 V or 1.15 V set by VSEL logic level - eliminates external feedback resistors and saves board space in multi-voltage SoC designs. |
| Automatic PFM/PWM transition | Seamless mode switch at inductor current zero-crossing - maintains >85% efficiency from 10 µA to 400 mA load without manual control. |
| Voltage positioning in PFM | VOUT regulated to VOUT(nom) +1% threshold - reduces output ripple to <15 mVPP with 10 µF COUT and 2.2 µH L. |
| 100% duty cycle operation | Enables dropout as low as 120 mV at 400 mA (calculated: VIN(min) = 1.15 V + 0.4 A × (0.48 Ω + 0.05 Ω)) - extends battery runtime in deep-discharge conditions. |
| Integrated MOSFETs | High-side RDS(on) = 240 mΩ (typ), low-side = 180 mΩ (typ) - eliminates external switches and reduces BOM count by 4 components. |
Applications
| Mobile Phone Core Supply | Low-Power DSP Voltage Rail |
|---|---|
|
Use Scenario: Powers ARM Cortex-A/M series application processor cores requiring dynamic voltage scaling between 0.9 V (idle) and 1.15 V (active). IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated, low-noise core voltage with sub-µs transient response. Use Value: Enables 30% reduction in active-mode power vs. fixed 1.2 V supply; VSEL-controlled scaling cuts leakage current by 2× at 0.9 V. |
Use Scenario: Supplies TI C5000/C6000-series digital signal processors in portable audio recorders and voice assistants. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting burst-mode DSP operation with rapid load transients. Use Value: Maintains >90% efficiency at 50 mA (standby) and >85% at 350 mA (FFT processing), extending battery life by 4.2 hours per charge. |
| Navigation System Baseband IC | Digital Camera Image Sensor Bias |
|
Use Scenario: Powers GPS/GNSS baseband ICs (e.g., u-blox UBX-M8) requiring clean 1.15 V supply with minimal conducted EMI. IC Role / Device Role / Timing Role: Low-ripple, high-PSRR DC-DC source synchronized to 2.25 MHz clock to avoid IF band interference. Use Value: Achieves <5 mVRMS output noise (10 Hz–100 kHz) and passes CISPR-22 Class B emissions with minimal shielding. |
Use Scenario: Provides 0.9 V bias to CMOS image sensor analog front-end (AFE) in compact action cameras. IC Role / Device Role / Timing Role: Ultra-small-footprint power stage meeting strict height constraint (<1 mm) and thermal budget. Use Value: Fits within 3.3 mm × 6.5 mm total solution area; thermal pad dissipates 0.35 W at 400 mA, limiting ΔT to 27°C above ambient. |
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-6 package, 2.25 MHz, but fixed 1.2 V output; lacks VSEL pin and PFM voltage positioning. | Not suitable for dynamic voltage scaling; requires redesign if 0.9 V/1.15 V dual-rail support is mandatory. | Select only if fixed 1.2 V output suffices and board layout cannot accommodate VSEL routing. |
| TPS62740DSSR | Lower IQ (360 nA shutdown, 250 nA operating), but max 200 mA output and 3 MHz switching; different 1.2 mm × 0.8 mm WCSP package. | Better for ultra-low-power IoT sensors; insufficient for 400 mA DSP loads; incompatible pinout and layout. | Choose for coin-cell applications needing nanowatt quiescent draw; reject for mobile phone core rail due to current limit. |
Compared with TPS62270DRVT, TPS62260DRVR offers identical form factor and frequency but sacrifices voltage flexibility and PFM optimization, while TPS62740DSSR trades output current and package compatibility for extreme low-power operation - making neither a drop-in replacement but viable alternatives for narrower use cases.
Availability
TPS62270DRVT is available at Aetrix Electronics and suitable for mobile phone core supplies, low-power DSP voltage rails, navigation system baseband ICs, and digital camera image sensor bias applications requiring stable component supply across production lifecycles.
Supply support for TPS62270DRVT 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 50 years of innovation in energy-efficient power conversion.
The TPS62270DRVT belongs to TI's NanoPower™ synchronous buck converter family, designed specifically for space-constrained, battery-operated portable devices demanding high efficiency across wide load ranges and dynamic voltage scaling capability.
FAQ
What output voltages does the TPS62270DRVT support, and how are they selected?
The TPS62270DRVT supports two fixed output voltages: 0.9 V when VSEL is pulled low (to GND), and 1.15 V when VSEL is pulled high (to VIN). These values are factory-trimmed with ±1% tolerance and require no external feedback resistors. The VSEL pin accepts standard CMOS logic levels and enables real-time voltage scaling during processor operation - a key feature for optimizing dynamic power in mobile SoCs. This dual-voltage capability is intrinsic to the TPS62270DRVT silicon and cannot be altered post-manufacture.
Does the TPS62270DRVT require external compensation components?
No, the TPS62270DRVT does not require external compensation components. Its internal voltage-mode control loop is fully compensated for stable operation with standard 2.2 µH inductors and 10 µF ceramic output capacitors. The FB pin is internally connected to a precision resistor divider in fixed-output mode; connecting it externally will disrupt regulation. TI's reference design (SLVS799C Figure 25) confirms zero external compensation - only input/output capacitors and the inductor are needed for full functionality.
What is the minimum input voltage required for the TPS62270DRVT to maintain regulation at 400 mA output?
At 400 mA output, the TPS62270DRVT maintains regulation down to approximately 1.35 V input when configured for 0.9 V output - enabled by its 100% duty cycle mode. This is calculated using VIN(min) = VOUT(max) + IOUT × (RDS(on)_HS(max) + RL), where RDS(on)_HS(max) = 480 mΩ and typical inductor DCR = 50 mΩ. For 1.15 V output, minimum VIN is ~1.55 V. Below these thresholds, undervoltage lockout (1.85 V falling threshold) disables switching to protect the battery.
How does the TPS62270DRVT achieve high efficiency at light loads?
The TPS62270DRVT achieves high light-load efficiency (≥85% at 100 µA) through automatic transition into Power Save Mode (PFM), where it skips pulses and regulates output using a single-threshold comparator monitoring VOUT +1%. Each PFM pulse delivers precise charge via the 2.2 µH inductor, minimizing unnecessary switching losses. Quiescent current remains at 15 µA during this mode, and the device enters deep sleep (<1 µA) only when EN is deasserted - ensuring rapid wake-up without startup delay.
Is the TPS62270DRVT pin-compatible with other devices in the TPS6227x family?
Yes, the TPS62270DRVT shares identical pinout, package (SON-6 DRV), and footprint with TPS62272DRVT and TPS62273DRVT. All three devices have identical SW/VSEL/FB/EN/GND/VIN assignments and thermal pad layout. However, output voltage selection differs: TPS62272 offers 2.1 V/3.3 V, and TPS62273 offers 2.5 V/3.3 V. Swapping between them requires only firmware-level VSEL logic adjustment - no PCB change - but output capacitor voltage rating must match the new VOUT max.
TPS62270DRVT 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):
- 0.9V, 1.15V
- 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)
TPS62270DRVT FAQ
1.How can I place an order for TPS62270DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62270DRVT 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 TPS62270DRVT reliable?
The price and inventory of TPS62270DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62270DRVT is usually 5 days.
3.What payment methods are accepted for TPS62270DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62270DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62270DRVT?
TPS62270DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62270DRVT 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 TPS62270DRVT?
For technical support, including TPS62270DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62270DRVT requirements.
6.How does Aetrix verify that TPS62270DRVT is sourced from the original manufacturer or authorized distributors?
All TPS62270DRVT 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 TPS62270DRVT meets industry standards.
7.What is the process for return or replacement of TPS62270DRVT?
All TPS62270DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62270DRVT, 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 TPS62270DRVT part is unused and in its original packaging.
Return procedure for TPS62270DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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