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Texas Instruments TPS62205DBVR
- Part No.:
- TPS62205DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62205DBVR.pdf
- Description:
- IC REG BUCK 2.5V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,197
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Product details
Overview
TPS62205DBVR from Texas Instruments is a fixed-output synchronous step-down DC-DC converter delivering 2.5 V at up to 300 mA, operating from 2.7 V to 6 V input, with 1 MHz fixed-frequency PWM and power-save mode PFM operation. It targets low-power portable systems including smart phones and digital cameras where battery life and compact footprint are critical.
For engineers reviewing the TPS62205DBVR datasheet, TPS62205DBVR pinout, TPS62205DBVR application, or TPS62205DBVR equivalent, key selection criteria include its 2.5 V fixed output, 15 µA typical quiescent current in power-save mode, SOT-23-5 package compatibility, and dynamic voltage positioning for transient response headroom.
Technical Context
The TPS62205DBVR implements a fast-response voltage-mode control architecture with input voltage feed-forward, enabling stable regulation using only small ceramic capacitors (4.7 µF input, 10 µF output). Its dual-mode operation-fixed 1 MHz PWM under medium-to-heavy load and variable-frequency PFM at light loads-maximizes efficiency across the full 0–300 mA range.
Internally, it integrates complementary P-channel and N-channel MOSFETs (rDS(on) ≤850 mΩ and ≤660 mΩ respectively at 2.5 V), undervoltage lockout (1.5–2.0 V threshold), soft-start (digital stepped current limiting), and 100% duty-cycle low-dropout capability for extended battery runtime.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±3% over 0–300 mA load and 2.7–6 V input; enables direct powering of 2.5 V logic without external feedback resistors. |
| Input Voltage Range | 2.7 V to 6.0 V; supports single-cell Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd, and standard 3.3 V/5 V rails. |
| Max Output Current | 300 mA continuous; sufficient for low-power DSPs, microcontrollers, and camera sensor interfaces. |
| Quiescent Current | 15 µA typical in power-save mode; extends battery life in standby or intermittent-use applications. |
| Switching Frequency | 650–1500 kHz (typ. 1 MHz); balances EMI control, inductor size, and transient response in space-constrained designs. |
| Efficiency Peak | Up to 95% at 200 mA / 3.7 V input / 1.8 V output (per family data); TPS62205DBVR achieves comparable peak efficiency at its 2.5 V output point. |
| Shutdown Current | 0.1 µA typical; ensures near-zero system leakage when disabled via EN pin. |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, thermal pad not present. Compatible with standard SOT-23 reflow profiles and pick-and-place equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VI (Pin 1) | Power input | Accepts 2.7–6 V supply; requires local 4.7 µF ceramic decoupling placed adjacent to pin. |
| GND (Pin 2) | Ground reference | Primary return path for power and control circuits; must be connected to low-impedance PCB ground plane. |
| EN (Pin 3) | Enable control | Active-high logic input; <0.4 V disables device (0.1 µA IQ), >1.3 V enables with soft-start; must not float. |
| SW (Pin 5) | Switch node | Connects to inductor; carries high di/dt switching current; requires short, low-inductance trace to minimize EMI. |
| FB (Pin 4) | Feedback sense | Internally tied to 2.5 V output divider; unused in fixed-output variants-no external components required. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Maintains output ~0.8% above nominal during light load, providing headroom to absorb load transients without undershoot. |
| 100% Duty-Cycle Operation | Enables regulation down to VIN ≈ VOUT + IOUT×rDS(on), maximizing usable battery voltage range in Li-ion systems. |
| Integrated Power MOSFETs | P-channel (≤850 mΩ) and N-channel (≤660 mΩ) switches eliminate external FETs and gate drivers, reducing BOM count and layout area. |
| Soft-Start Function | Digital stepped current limit (60/120/240/480 mA) prevents input rail collapse during startup into large output capacitance. |
| Low-ESR Ceramic Optimization | Stable with 4.7 µF input and 10 µF output X5R/X7R ceramics-no tantalum or electrolytic capacitors needed. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Supply |
|---|---|
Use Scenario: Powers baseband processor core voltage in LTE/5G handsets requiring tight regulation and ultra-low idle current. IC Role / Device Role / Timing Role: Primary 2.5 V step-down regulator delivering regulated power with dynamic load response to CPU DVFS transitions. Use Value: 15 µA quiescent current extends standby time; dynamic voltage positioning minimizes need for oversized output capacitance. |
Use Scenario: Supplies image sensor analog and digital domains in compact digital cameras with burst capture mode. IC Role / Device Role / Timing Role: Fixed-output buck converter providing clean, low-noise 2.5 V rail synchronized to exposure timing cycles. Use Value: 1 MHz switching enables small 10 µH inductor; 95% peak efficiency reduces thermal load near optical module. |
| Portable Media Player Audio Codec | Wearable Health Monitor MCU |
Use Scenario: Generates 2.5 V bias for high-fidelity audio codecs in flash-based media players with battery-only operation. IC Role / Device Role / Timing Role: Efficient DC-DC source replacing LDO to reduce heat and extend playback duration per charge. Use Value: 95% efficiency at 150 mA cuts power loss by >50% vs. typical LDO; SOT-23-5 footprint fits narrow PCB margins. |
Use Scenario: Powers ARM Cortex-M0+ MCU and BLE radio in coin-cell–powered fitness trackers with multi-week battery life. IC Role / Device Role / Timing Role: Primary system regulator enabling deep-sleep current optimization via EN-controlled shutdown. Use Value: 0.1 µA shutdown current preserves battery during inactive periods; 2.7 V min input supports full coin-cell discharge curve. |
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 |
|---|---|---|---|
| TPS62202DBVR | Fixed 1.8 V output; identical package, pinout, and electrical specs except VO and FB internal divider ratio. | Requires redesign of downstream 1.8 V logic interface; unsuitable where 2.5 V rail is mandated by IC datasheet. | Select only if system voltage architecture aligns with 1.8 V; no PCB change needed beyond output capacitor adjustment. |
| TPS62204DBVR | Fixed 1.6 V output; same SOT-23-5 footprint, EN/SW/GND/VI pin mapping, and 300 mA rating. | Not interchangeable for 2.5 V loads; may serve as drop-in replacement in 1.6 V FPGA I/O banks or low-voltage sensors. | Valid alternative only for systems migrating to lower core voltages; verify all connected devices tolerate 1.6 V. |
Compared with TPS62205DBVR, TPS62202DBVR and TPS62204DBVR share identical thermal performance, enable behavior, and transient response-but differ solely in factory-trimmed output voltage, making them functionally distinct fixed-output variants within the same validated platform.
Availability
TPS62205DBVR is available at Aetrix Electronics and suitable for smartphone baseband power, digital camera sensor supply, and wearable health monitor MCU applications requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62205DBVR 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 connectivity technologies, with decades of expertise in power management IC design and manufacturing.
The TPS6220x product line was engineered specifically for space-constrained portable electronics, delivering high-efficiency, low-quiescent-current step-down conversion in minimal SOT-23-5 footprint for battery-powered devices.
FAQ
What is the guaranteed output voltage tolerance for TPS62205DBVR across temperature and load?
The TPS62205DBVR guarantees ±3% output voltage accuracy over 0–300 mA load current and –40°C to +85°C ambient temperature, as specified in the Electrical Characteristics table under "Fixed output voltage" conditions with VI = 2.7 V to 6 V. This includes line, load, and temperature effects-no additional calibration or external trimming is required for compliance.
Can TPS62205DBVR operate from a 2.5 V input source?
No-TPS62205DBVR has a minimum input voltage specification of 2.7 V, as stated in the Recommended Operating Conditions table. Attempting operation below 2.7 V may trigger undervoltage lockout (UVLO) or cause unstable regulation. For 2.5 V input compatibility, consider the TPS62200 adjustable variant or other TI buck converters rated down to 2.5 V.
Does TPS62205DBVR require external feedback resistors?
No-TPS62205DBVR is a fixed-output variant with internal resistor divider set for 2.5 V. The FB pin is pre-connected internally; no external resistors or capacitors are needed on that pin. This simplifies layout and eliminates resistor tolerance errors affecting output accuracy.
What is the maximum junction temperature for continuous operation of TPS62205DBVR?
The TPS62205DBVR supports continuous operation up to +125°C junction temperature, as defined in the Recommended Operating Conditions table. With RθJA = 220°C/W in SOT-23-5, sustained 300 mA output at 6 V input requires careful thermal design-such as copper pour under the exposed pad (though DBV lacks thermal pad) and airflow-to avoid exceeding this limit.
How does the power-save mode in TPS62205DBVR affect output voltage ripple?
In power-save mode (PFM), TPS62205DBVR regulates output voltage using comparator thresholds rather than fixed-frequency PWM, resulting in output ripple independent of capacitor value-typically ±1% of VOUT. This differs from PWM mode, where ripple depends on ESR and COUT; the PFM behavior allows use of smaller 10 µF ceramics while maintaining acceptable transient performance.
TPS62205DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 300mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS62205DBVR FAQ
1.How can I place an order for TPS62205DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62205DBVR 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 TPS62205DBVR reliable?
The price and inventory of TPS62205DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62205DBVR is usually 5 days.
3.What payment methods are accepted for TPS62205DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62205DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62205DBVR?
TPS62205DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62205DBVR 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 TPS62205DBVR?
For technical support, including TPS62205DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62205DBVR requirements.
6.How does Aetrix verify that TPS62205DBVR is sourced from the original manufacturer or authorized distributors?
All TPS62205DBVR 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 TPS62205DBVR meets industry standards.
7.What is the process for return or replacement of TPS62205DBVR?
All TPS62205DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62205DBVR, 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 TPS62205DBVR part is unused and in its original packaging.
Return procedure for TPS62205DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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