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Texas Instruments TPS62204DBVT
- Part No.:
- TPS62204DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62204DBVT.pdf
- Description:
- IC REG BUCK 1.6V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:725
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Product details
Overview
TPS62204DBVT from Texas Instruments is a fixed-output 1.6 V, 300 mA synchronous step-down DC-DC converter in a 5-pin SOT-23 package, operating from 2.5 V to 6 V input. It delivers up to 95% efficiency at 200 mA with 1 MHz fixed-frequency PWM and enters power-save mode (PFM) below ~66 mA, reducing quiescent current to 15 µA. It powers low-voltage logic rails in portable battery-powered systems.
For engineers reviewing the TPS62204DBVT datasheet, TPS62204DBVT pinout, TPS62204DBVT application, or TPS62204DBVT equivalent, key selection criteria include its fixed 1.6 V output, 15 µA no-load IQ, 1 MHz switching frequency, 300 mA output capability, and SOT-23 thermal performance (RθJA = 220°C/W).
Technical Context
The TPS62204DBVT implements voltage-mode control with input voltage feed-forward for fast line/load regulation using only ceramic input (4.7 µF) and output (10 µF) capacitors. Its dual-MOSFET synchronous architecture includes P-channel (670–850 mΩ @ 2.5 V) and N-channel (530–660 mΩ @ 2.5 V) switches with integrated current limiting (380–670 mA).
It operates in two distinct modes: fixed-frequency 1 MHz PWM under medium-to-heavy loads and pulse-frequency modulation (PFM) power-save mode at light loads, dynamically adjusting switching frequency and duty cycle to maintain >90% efficiency from 1 mA to 300 mA. Dynamic voltage positioning raises output by 0.8% at light load to minimize transient droop.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V ±3% over 0–300 mA load and 2.5–6 V input; enables direct powering of 1.6 V I/O or core rails without external feedback resistors. |
| Max Output Current | 300 mA continuous; supports single-core microcontrollers, low-power DSPs, and sensor interfaces in space-constrained designs. |
| Input Voltage Range | 2.5 V to 6 V; compatible with single-cell Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd (3.6–4.5 V), and standard 3.3 V/5 V rails. |
| Quiescent Current | 15 µA typical in power-save mode; extends battery life in always-on or low-duty-cycle portable devices. |
| Switching Frequency | 1 MHz nominal (650–1500 kHz range); allows use of small 10 µH inductors and compact 0805 ceramic capacitors. |
| Efficiency Peak | Up to 95% at 200 mA with 3.7 V input; minimizes thermal rise in sealed enclosures and improves energy harvesting viability. |
| Shutdown Current | 0.1 µA typical; ensures near-zero drain during system sleep states when EN is pulled low. |
Pinout & Package
TPS62204DBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm with standard lead pitch and thermal pad omitted. The package supports reflow soldering and achieves RθJA = 220°C/W on 2-layer PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VI | Power input | Accepts 2.5–6 V supply; requires local 4.7 µF ceramic capacitor placed within 3 mm for stable operation. |
| 2 - GND | Ground reference | Primary return path for power and control circuits; must connect directly to low-impedance ground plane. |
| 3 - EN | Enable control | Active-high digital input; pull ≥1.3 V to enable, ≤0.4 V to shut down (0.1 µA IQ); must not float. |
| 4 - FB | Feedback sense | Internally connected to 1.6 V divider; unused in fixed-output version-leave unconnected per datasheet. |
| 5 - SW | Switch node | Drives external 10 µH inductor; carries high di/dt; requires tight layout with minimal loop area to reduce EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Maintains +0.8% output offset at light load to absorb 300 mA transient step without undershoot exceeding 3%. |
| 100% Duty-Cycle Low-Dropout Mode | Enables regulation down to VIN ≈ VOUT + (IOUT × rDS(ON)_P), extending usable battery voltage range by ~200 mV. |
| Integrated Soft Start | Staged current ramp (60 → 120 → 240 → 480 mA) limits inrush; achieves full regulation in ~800 µs with 10 µF output cap. |
| Undervoltage Lockout (UVLO) | Activates at VIN < 1.5–2.0 V to prevent erratic switching and MOSFET shoot-through during brownout. |
| Synchronous Rectification | Eliminates external Schottky diode; reduces conduction loss by ~30% vs. asynchronous buck at 300 mA. |
Applications
| Smartphone Baseband Power | PDA Application Processor Core |
|---|---|
Use Scenario: Powers ARM9/ARM11 core rail in legacy smartphones operating from single Li-ion cell (2.7–4.2 V). IC Role / Device Role / Timing Role: Primary 1.6 V core regulator delivering 250 mA peak with <10 µs transient response. Use Value: Enables 100% duty-cycle operation down to 1.7 V input, extending talk time by 12 minutes per charge cycle. |
Use Scenario: Supplies 1.6 V I/O domain for touch controller and display interface in handheld PDAs. IC Role / Device Role / Timing Role: Fixed-output point-of-load regulator with EN-controlled sequencing during boot. Use Value: 15 µA quiescent current reduces standby power by 40% versus older linear regulators. |
| Digital Camera Image Sensor Bias | Portable Medical Glucose Meter MCU |
Use Scenario: Provides clean 1.6 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 dynamic voltage positioning to handle pixel readout bursts. Use Value: 10 µF ceramic output cap achieves <15 mV p-p ripple-within sensor ADC reference tolerance. |
Use Scenario: Powers 32-bit MCU and LCD driver in battery-operated glucose meters requiring 10-year shelf life. IC Role / Device Role / Timing Role: Primary system regulator with shutdown control via microcontroller GPIO. Use Value: 0.1 µA shutdown current limits annual battery self-discharge to <0.5%, preserving shelf life. |
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 |
|---|---|---|---|
| TPS62203DBVT | Fixed 3.3 V output; identical package, pinout, and 300 mA rating but higher VOUT and different feedback network. | Used where 3.3 V logic interface or peripheral rail required instead of 1.6 V core rail. | Select TPS62203DBVT only if system requires 3.3 V output; not a drop-in replacement for 1.6 V loads. |
| TPS62202DBVT | Fixed 1.8 V output; same thermal specs and efficiency curve but 200 mV higher nominal output voltage. | Preferred for 1.8 V FPGA I/O banks or memory interfaces needing tighter VOUT tolerance at high temperature. | Choose TPS62202DBVT when 1.8 V is required; verify downstream logic compatibility before substitution. |
Compared with TPS62204DBVT, TPS62203DBVT provides higher output voltage for interface rails while TPS62202DBVT offers marginally better load regulation at 1.8 V-neither matches the exact 1.6 V/300 mA specification set of the original part.
Availability
TPS62204DBVT is available at Aetrix Electronics and suitable for smartphone baseband power, PDA processor cores, digital camera sensor bias, and portable medical device MCUs requiring stable component supply across production lifecycles.
Supply support for TPS62204DBVT 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 TPS6220x family was designed specifically for ultra-low-power portable electronics, targeting battery-powered applications where efficiency across wide load ranges and minimal board area are critical design constraints.
FAQ
What is the output voltage tolerance of the TPS62204DBVT over temperature and load?
The TPS62204DBVT maintains a fixed 1.6 V output with ±3% tolerance across the full operating ambient temperature range (–40°C to +85°C) and full 0–300 mA load range, as specified in the Electrical Characteristics table under "Fixed output voltage" test conditions.
Does the TPS62204DBVT require external feedback resistors to set its output voltage?
No. The TPS62204DBVT is a fixed-output variant with internal resistor divider configured for 1.6 V; the FB pin is internally terminated and must remain unconnected in standard operation per the datasheet Pin Functions section.
Can the TPS62204DBVT operate from a 2.5 V input while delivering 300 mA at 1.6 V?
Yes. The TPS62204DBVT supports 2.5 V minimum input and delivers full 300 mA output at 1.6 V using 100% duty-cycle low-dropout mode, where the P-channel switch remains continuously on-verified in Recommended Operating Conditions and Feature Description sections.
What is the maximum recommended PCB copper area for thermal relief with the TPS62204DBVT in SOT-23?
While the SOT-23 (DBV) package has no thermal pad, TI recommends using ≥250 mm² of 1-oz copper on the GND pin side of the board to achieve the rated RθJA = 220°C/W; doubling copper area reduces junction-to-ambient thermal resistance by ~15%.
How does the TPS62204DBVT enter and exit power-save mode?
The TPS62204DBVT automatically enters power-save mode (PFM) when load current drops below ~66 mA, detected via discontinuous conduction or sub-threshold switch current; it exits back to PWM mode when output voltage falls below the comparator low-2 threshold, ensuring seamless transition without output disturbance.
TPS62204DBVT 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):
- 1.6V
- 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
TPS62204DBVT FAQ
1.How can I place an order for TPS62204DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62204DBVT 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 TPS62204DBVT reliable?
The price and inventory of TPS62204DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62204DBVT is usually 5 days.
3.What payment methods are accepted for TPS62204DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62204DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62204DBVT?
TPS62204DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62204DBVT 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 TPS62204DBVT?
For technical support, including TPS62204DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62204DBVT requirements.
6.How does Aetrix verify that TPS62204DBVT is sourced from the original manufacturer or authorized distributors?
All TPS62204DBVT 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 TPS62204DBVT meets industry standards.
7.What is the process for return or replacement of TPS62204DBVT?
All TPS62204DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62204DBVT, 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 TPS62204DBVT part is unused and in its original packaging.
Return procedure for TPS62204DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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