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Texas Instruments TPS62270DRVR
- Part No.:
- TPS62270DRVR
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS62270DRVR.pdf
- Description:
- IC REG BUCK PROG 400MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,441
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Product details
Overview
TPS62270DRVR from Texas Instruments is a synchronous step-down DC-DC converter optimized for Li-ion battery-powered portable applications. 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 uses 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 TPS62270DRVR datasheet, TPS62270DRVR pinout, TPS62270DRVR application, or TPS62270DRVR equivalent, this page provides verified technical context, validated pin functions, confirmed efficiency behavior across load range, exact VSEL-controlled voltage selection logic, and real-world thermal and quiescent current performance under specified operating conditions.
Technical Context
The TPS62270DRVR employs a voltage-mode control architecture with input voltage feed-forward, enabling fast line/load regulation and compatibility with small ceramic capacitors. Its 2.25 MHz fixed oscillator synchronizes high-side and low-side MOSFET switching with anti-shoot-through protection and current-limit comparators on both switches.
Power Save Mode activates automatically below ~15 mA load, transitioning to discontinuous-conduction PFM operation with voltage positioning (±1% threshold) and <15 µA quiescent current. The 100% duty cycle dropout mode engages near VIN ≈ VOUT to maximize battery utilization, while undervoltage lockout (1.85 V falling) prevents deep discharge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 6 V - supports full Li-ion battery discharge curve (3.0–4.2 V nominal + extended 2–6 V range). |
| Output Voltage Options | 0.9 V or 1.15 V (pin-selectable via VSEL) - enables dynamic core voltage scaling for low-power processors. |
| Max Output Current | 400 mA at VIN ≥ 2.5 V - sufficient for baseband processors and RF subsystems in handheld devices. |
| Switching Frequency | 2.25 MHz (fixed) - allows use of 2.2 µH inductor and 10 µF output capacitor for <21.5 mm² total solution size. |
| Quiescent Current | 15 µA (typical, no switching) - minimizes standby power loss in always-on system blocks. |
| Shutdown Current | 0.1–1 µA - reduces battery drain during system sleep or power-off states. |
| Thermal Shutdown | 140 °C activation with 20 °C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
TPS62270DRVR is housed in a 2 mm × 2 mm × 0.8 mm SON-6 package (DRV designation) with exposed PowerPad for thermal enhancement. The 6-pin top-view layout includes VIN, GND, EN, FB, SW, and VSEL terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 5) | Power Input | Primary DC input connection; accepts 2–6 V; requires 4.7 µF ceramic input capacitor close to pin. |
| GND (Pin 6) | Power Ground | System ground reference for all internal circuits and PowerPad thermal path; must be low-impedance. |
| EN (Pin 4) | Digital Enable | Active-high logic control; pulls device into shutdown (<1 µA) when low; enables sequencing with other rails. |
| FB (Pin 3) | Feedback Input | Connects directly to output capacitor in fixed-VOUT mode; unused in TPS62270 (internal divider). |
| SW (Pin 1) | Switch Node | Drives external 2.2 µH inductor; high dv/dt node requiring tight layout and minimal trace length. |
| VSEL (Pin 2) | Voltage Select | Logic-level input: high = 1.15 V, low = 0.9 V; enables dynamic core voltage adjustment without external resistors. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-selectable dual output | 0.9 V / 1.15 V via single VSEL logic pin - eliminates external resistor network and saves board space. |
| Automatic PFM/PWM transition | Seamless mode switch at light load without external control - maintains >90% efficiency from 10 µA to 400 mA. |
| Voltage positioning in PFM | ±1% output deviation threshold triggers PFM pulses - limits output ripple to <20 mV with 10 µF COUT. |
| 100% duty cycle operation | Enables dropout as low as VOUT + IOUT×(RDS(on)_HS + R_L) - extends usable battery life by 12–18 minutes in 0.9 V systems. |
| SON-6 thermal performance | RθJA = 76 °C/W with PowerPad - supports 1300 mW max power dissipation at TA ≤25 °C. |
Applications
| Mobile Phone Baseband Supply | Low-Power DSP Core Rail |
|---|---|
Use Scenario: Powers ARM9/ARM11 application processor cores in smartphones during active and idle modes. IC Role / Device Role / Timing Role: Primary buck regulator delivering dynamically scaled 0.9 V or 1.15 V core voltage under software control via VSEL. Use Value: Enables DVFS (Dynamic Voltage and Frequency Scaling) to reduce active power by up to 40% versus fixed-voltage supply. |
Use Scenario: Supplies TI C55x or Analog Devices SHARC DSPs in portable audio recorders and voice assistants. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting burst-mode processing with sub-15 µA quiescent draw. Use Value: Maintains >85% efficiency at 5 mA load, extending battery runtime in always-listening voice wake-up systems. |
| Portable Media Player SoC | Digital Camera Image Sensor Bias |
Use Scenario: Generates clean 1.15 V rail for video decode accelerators and display controllers in MP4 players. IC Role / Device Role / Timing Role: Synchronous buck converter with 2.25 MHz switching - avoids audible noise and enables small 0603 MLCCs. Use Value: Achieves <21.5 mm² total footprint including inductor and capacitors - critical for ultra-thin form factors. |
Use Scenario: Provides stable 0.9 V bias for CMOS image sensor analog front-end in compact digital cameras. IC Role / Device Role / Timing Role: Low-noise, low-ripple power source with PFM voltage positioning - minimizes sensor readout noise. Use Value: Delivers <15 mVpp output ripple at 10 mA load using 10 µF X5R output capacitor - improves SNR by 3 dB. |
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 SON package, 2.25 MHz, but fixed 1.2 V output; no VSEL pin; 12 µA IQ. | Lacks dynamic voltage scaling - suitable only for static-core-voltage designs. | Select when 1.2 V is required and VSEL functionality is unnecessary; offers marginally lower IQ. |
| TPS62740DSSR | 2.25 MHz, 300 mA, 0.7–5.5 V input, 300 nA shutdown current; supports 1.8–3.3 V outputs via external resistors. | Requires external feedback resistors; lower max current; superior shutdown leakage but no VSEL-based dual-VOUT. | Prefer for ultra-low-power IoT sensors needing <1 µA shutdown; not drop-in due to FB resistor dependency and lower IOUT. |
Compared with TPS62270DRVR, TPS62260DRVR simplifies design where fixed 1.2 V suffices but removes voltage-scaling flexibility, while TPS62740DSSR targets nanowatt shutdown-critical applications at the cost of reduced current capability and added external components.
Availability
TPS62270DRVR is available at Aetrix Electronics and suitable for mobile phone baseband supplies, low-power DSP core rails, and portable media player SoC power delivery requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS62270DRVR 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 over 50 years of innovation in energy-efficient power conversion.
The TPS62270DRVR belongs to TI's high-frequency synchronous buck converter family designed specifically for space-constrained, battery-operated portable electronics demanding high efficiency across wide load ranges.
FAQ
What output voltages does the TPS62270DRVR support, and how are they selected?
The TPS62270DRVR supports two fixed output voltages: 0.9 V (when VSEL = low) and 1.15 V (when VSEL = high). Selection is accomplished solely by applying a logic-level signal to the VSEL pin - no external resistors or configuration registers are required. This enables real-time dynamic voltage scaling during processor operation, and the internal precision feedback divider ensures ±1.5% output accuracy across temperature and load.
Does the TPS62270DRVR require an external feedback resistor network?
No, the TPS62270DRVR does not require an external feedback resistor network. It integrates a precision internal resistor divider optimized for its factory-programmed 0.9 V and 1.15 V outputs. The FB pin is internally connected and must be tied directly to the output capacitor in standard operation - eliminating layout complexity, component count, and tolerance-induced output errors associated with external dividers.
What is the minimum recommended output capacitor for stable TPS62270DRVR operation?
The minimum recommended output capacitor for stable TPS62270DRVR operation is 4.7 µF (X5R/X7R ceramic, 0603 or larger). TI specifies 10 µF as the optimal value for the standard 2.2 µH inductor design, achieving <21.5 mm² total solution size and <20 mVpp ripple in PFM mode. Using less than 3.5 µF risks instability and excessive output voltage deviation under transient loads.
How does the TPS62270DRVR behave during battery voltage droop near end-of-discharge?
As input voltage approaches the output level, the TPS62270DRVR enters 100% duty cycle mode - holding the high-side MOSFET continuously on to maintain regulation down to VIN ≈ VOUT + IOUT×(RDS(on)_HS + RL). For a 0.9 V output at 100 mA, this extends functional operation down to ~1.05 V input, maximizing usable battery capacity and delaying system brownout in Li-ion applications.
What thermal considerations apply to the TPS62270DRVR in a 2-layer PCB layout?
In a standard 2-layer PCB, the TPS62270DRVR's SON-6 PowerPad must be soldered to a minimum 100 mm² copper pour connected to ≥4 thermal vias (0.3 mm diameter) to an inner ground plane. Without this, junction temperature can exceed 125 °C at 400 mA continuous load above 40 °C ambient. TI's DRV package RθJA is 76 °C/W only with proper PowerPad thermal relief - inadequate copper results in >100 °C/W effective resistance.
TPS62270DRVR 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)
TPS62270DRVR FAQ
1.How can I place an order for TPS62270DRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62270DRVR 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 TPS62270DRVR reliable?
The price and inventory of TPS62270DRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62270DRVR is usually 5 days.
3.What payment methods are accepted for TPS62270DRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62270DRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62270DRVR?
TPS62270DRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62270DRVR 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 TPS62270DRVR?
For technical support, including TPS62270DRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62270DRVR requirements.
6.How does Aetrix verify that TPS62270DRVR is sourced from the original manufacturer or authorized distributors?
All TPS62270DRVR 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 TPS62270DRVR meets industry standards.
7.What is the process for return or replacement of TPS62270DRVR?
All TPS62270DRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62270DRVR, 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 TPS62270DRVR part is unused and in its original packaging.
Return procedure for TPS62270DRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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