My Inquiry
My Account
Texas Instruments TPS62205DBVTG4
- Part No.:
- TPS62205DBVTG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62205DBVTG4.pdf
- Description:
- IC REG BUCK 2.5V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,902
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62205DBVTG4 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 for high efficiency across load range. It powers low-voltage processors in portable media players and smart phones.
For engineers reviewing the TPS62205DBVTG4 datasheet, TPS62205DBVTG4 pinout, TPS62205DBVTG4 application, or TPS62205DBVTG4 equivalent, key selection criteria include its 2.5 V fixed output, 15 µA quiescent current in power-save mode, SOT-23-5 package footprint, and dynamic voltage positioning for transient response headroom.
Technical Context
The TPS62205DBVTG4 uses a voltage-mode control architecture with input voltage feed-forward, enabling fast line and load regulation using only small ceramic capacitors. Its dual-mode operation switches between 1 MHz PWM at medium-to-heavy loads and pulse-frequency modulation (PFM) at light loads.
Internally, it integrates P-channel and N-channel MOSFETs with on-resistances of 670–850 mΩ and 530–660 mΩ respectively at 2.5 V input, and features undervoltage lockout (1.5–2.0 V), soft-start (800 µs typical with 10 µF output cap), and 100% duty-cycle low-dropout operation for battery-end-of-life support.
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 - ensures stable core supply for 2.5 V logic without external feedback network. |
| 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 - sufficient for low-power DSPs, microcontrollers, and RF front-end biasing in portable systems. |
| Quiescent Current | 15 µA typical in power-save mode - extends battery life in standby or intermittent-operation devices. |
| Switching Frequency | 650–1500 kHz (typ. 1 MHz) - enables compact 10 µH inductor and 10 µF ceramic output capacitor design. |
| Efficiency Peak | Up to 95% at 200 mA / 3.7 V input - minimizes thermal dissipation in space-constrained handheld enclosures. |
| Enable Threshold | EN high ≥1.3 V, low ≤0.4 V - compatible with standard GPIOs and allows precise system-level power sequencing. |
Pinout & Package
TPS62205DBVTG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for high-density portable PCB layouts with minimal thermal resistance (RθJA = 220 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VI (Pin 1) | Input supply connection | Accepts 2.7–6 V; requires local 4.7 µF ceramic decoupling placed adjacent to pin for EMI suppression and transient stability. |
| GND (Pin 2) | Power ground reference | Primary return path for switch current and feedback; must be connected to low-impedance ground plane under IC body. |
| EN (Pin 3) | Enable control input | Active-high logic input; pulling below 0.4 V shuts down device to 0.1 µA, enabling system-level power gating. |
| SW (Pin 5) | Switch node | Connects to inductor; carries high di/dt switching current - requires short, wide trace and Kelvin grounding to minimize ringing. |
| FB (Pin 4) | Feedback input | Internally tied to 2.5 V output divider - not user-configurable; must remain unconnected or directly shorted to output for fixed-version operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Output-Voltage Positioning | Output rises ~0.8% above 2.5 V at light load, providing headroom to absorb load-step undershoot without violating minimum supply spec. |
| 100% Duty-Cycle Low-Dropout Mode | Enables regulation down to VIN ≈ VOUT + IOUT×rDS(on), extending usable battery voltage range in Li-ion applications. |
| Soft Start | Digitally stepped current limit (60/120/240/480 mA) limits inrush; achieves full 2.5 V output in ~800 µs with 10 µF COUT and 200 mA load. |
| High-Efficiency Power-Save Mode | Reduces switching frequency and quiescent current to 15 µA at light loads, maintaining >85% efficiency even at 1 mA output. |
| Synchronous Rectification | Integrated N-channel MOSFET replaces external Schottky diode, eliminating reverse recovery loss and improving light-load efficiency. |
Applications
| Smartphone Baseband Power | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powers baseband processor core requiring stable 2.5 V supply during burst data transmission and deep-sleep states. IC Role / Device Role / Timing Role: Primary step-down regulator supplying processor VCC, dynamically transitioning between PWM and PFM modes per load demand. Use Value: 15 µA quiescent current extends standby time; dynamic voltage positioning prevents brownout during 300 mA transmit bursts. |
Use Scenario: Supplies image sensor analog front-end with low-noise 2.5 V rail during active capture and idle frame readout. IC Role / Device Role / Timing Role: Fixed-output buck converter delivering regulated bias; operates in PFM during idle intervals to minimize noise coupling. Use Value: 95% peak efficiency reduces self-heating near optical module; 1 MHz switching avoids interference with sensor sampling clock. |
| Portable Media Player Audio Codec | Wireless Headset MCU Supply |
Use Scenario: Provides clean 2.5 V supply to audio codec IC during playback, recording, and Bluetooth streaming. IC Role / Device Role / Timing Role: System power rail generator with fast load transient response to handle DAC/ADC current spikes. Use Value: Fast voltage-mode control and ceramic-capable design ensure <50 mV output deviation during 200 mA load steps. |
Use Scenario: Powers Bluetooth LE microcontroller in ultra-low-power wearable headset during voice call and sensor polling. IC Role / Device Role / Timing Role: Primary system regulator entering 0.1 µA shutdown when host device powers off. Use Value: EN pin compatibility with host GPIO enables zero-current storage mode; SOT-23-5 footprint fits sub-100 mm² PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62202DBVT | Fixed 1.8 V output; identical package, pinout, and control architecture. | Requires redesign of downstream logic voltage levels; unsuitable where 2.5 V rail is mandated by interface standards. | Select only if system already uses 1.8 V core logic and no mixed-voltage domains exist. |
| TPS62231DQCR | Higher 600 mA output, 2.0–5.5 V input, and integrated soft-start; 6-pin WSON package. | Supports higher-current peripherals but requires PCB layout change and different thermal management. | Choose when future scalability to >300 mA or tighter input range (2.0 V min) is required. |
Compared with TPS62205DBVTG4, TPS62202DBVT offers identical form-factor and efficiency but lacks voltage compatibility for 2.5 V systems, while TPS62231DQCR delivers greater current headroom at the cost of larger footprint and revised enable timing.
Availability
TPS62205DBVTG4 is available at Aetrix Electronics and suitable for portable media players, smartphone baseband subsystems, and digital camera sensor biasing requiring stable component supply with consistent parametric performance and long-term lifecycle support.
Supply support for TPS62205DBVTG4 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 decades of expertise in high-efficiency DC-DC conversion.
The TPS6220x product line was designed specifically for battery-powered portable electronics, emphasizing ultra-low quiescent current, small solution size, and seamless transition between high-efficiency PWM and PFM modes.
FAQ
What is the output voltage tolerance of the TPS62205DBVTG4 over temperature and load?
The TPS62205DBVTG4 maintains a fixed 2.5 V output with ±3% tolerance across the full operating ambient temperature range (–40°C to +85°C) and full load range (0–300 mA). This specification is verified per TI's SLVS417F datasheet Section 6.5, ensuring reliable operation in consumer-grade portable environments without external trimming.
Does the TPS62205DBVTG4 require external feedback resistors?
No, the TPS62205DBVTG4 is a fixed-output variant - its internal feedback divider is factory-trimmed for 2.5 V, and the FB pin is internally connected. External resistors are unnecessary and must not be added; the FB pin should be left unconnected or directly tied to the output node per datasheet guidance.
Can the TPS62205DBVTG4 operate with a 2.5 V input supply?
No - the TPS62205DBVTG4 has a minimum input voltage of 2.7 V per Recommended Operating Conditions (Section 6.3). At 2.5 V input, undervoltage lockout activates (threshold 1.5–2.0 V), preventing startup. For 2.5 V input compatibility, consider TPS62201 (1.5 V fixed) or TPS62200 (adjustable down to 0.7 V).
What is the maximum junction temperature rating for continuous operation of the TPS62205DBVTG4?
The TPS62205DBVTG4 is rated for continuous operation up to +125°C junction temperature (TJ), with recommended ambient operating range of –40°C to +85°C. Thermal derating applies above 85°C ambient; RθJA = 220 °C/W requires careful PCB copper area design to maintain safe TJ under 300 mA load.
How does the TPS62205DBVTG4 achieve high efficiency at light loads?
The TPS62205DBVTG4 enters power-save mode below ~10 mA load, reducing switching frequency and quiescent current to 15 µA. Its PFM control uses comparator thresholds set 0.8% and 1.6% above nominal 2.5 V to regulate output pulses, minimizing switching losses while maintaining tight voltage regulation - achieving >85% efficiency even at 1 mA.
TPS62205DBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
TPS62205DBVTG4 FAQ
1.How can I place an order for TPS62205DBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62205DBVTG4 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 TPS62205DBVTG4 reliable?
The price and inventory of TPS62205DBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62205DBVTG4 is usually 5 days.
3.What payment methods are accepted for TPS62205DBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62205DBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62205DBVTG4?
TPS62205DBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62205DBVTG4 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 TPS62205DBVTG4?
For technical support, including TPS62205DBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62205DBVTG4 requirements.
6.How does Aetrix verify that TPS62205DBVTG4 is sourced from the original manufacturer or authorized distributors?
All TPS62205DBVTG4 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 TPS62205DBVTG4 meets industry standards.
7.What is the process for return or replacement of TPS62205DBVTG4?
All TPS62205DBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62205DBVTG4, 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 TPS62205DBVTG4 part is unused and in its original packaging.
Return procedure for TPS62205DBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62205DBVTG4 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
