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Texas Instruments TPS62202DBVTG4
- Part No.:
- TPS62202DBVTG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS62202DBVTG4.pdf
- Description:
- IC REG BUCK 1.8V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,713
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Product details
Overview
TPS62202DBVTG4 from Texas Instruments is a fixed-output, synchronous step-down DC-DC converter delivering 1.8 V at up to 300 mA from a 2.5–6 V input. It operates in fixed-frequency PWM mode (1 MHz typical) at medium-to-heavy loads and transitions to power-save PFM mode at light loads, achieving up to 95% efficiency and 15 µA quiescent current. It powers low-voltage processors in battery-powered portable electronics.
For engineers reviewing the TPS62202DBVTG4 datasheet, TPS62202DBVTG4 pinout, TPS62202DBVTG4 application, or TPS62202DBVTG4 equivalent, key selection considerations include its SOT-23-5 package, 1.8 V fixed output, 300 mA capability, 15 µA no-load IQ, and dynamic voltage positioning for transient response optimization.
Technical Context
The TPS62202DBVTG4 uses a voltage-mode control architecture with input voltage feed-forward, enabling fast line and load regulation using only small ceramic capacitors (4.7 µF input, 10 µF output). Its internal 0.5 V reference and fixed feedback divider set the 1.8 V output without external resistors.
It integrates P-channel and N-channel MOSFETs (rDS(on) ≤850 mΩ and ≤660 mΩ respectively at 2.5 V), supports 100% duty-cycle operation for ultra-low dropout, and features undervoltage lockout (1.5–2.0 V threshold), soft-start (≈800 µs with 10 µF COUT, 200 mA load), and enable-controlled shutdown (0.1 µA IQ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±3% over 0–300 mA load and 2.5–6 V input - eliminates need for external feedback resistors. |
| Max Output Current | 300 mA continuous - sufficient for powering low-voltage DSPs, microcontrollers, and RF ICs in portable devices. |
| Input Voltage Range | 2.5 V to 6.0 V - compatible with single-cell Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd, and standard 3.3 V/5 V rails. |
| Quiescent Current | 15 µA typical in power-save mode - extends battery life in standby and light-load conditions. |
| Switching Frequency | 1 MHz nominal (650–1500 kHz range) - enables compact magnetics and filtering with minimal EMI impact. |
| Efficiency Peak | Up to 95% at 200 mA with 3.7 V input - reduces thermal stress and improves power budget in space-constrained designs. |
| Enable Threshold | VEN(H) ≥1.3 V, VEN(L) ≤0.4 V - compatible with standard logic-level GPIOs and supports precise system power sequencing. |
Pinout & Package
TPS62202DBVTG4 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 footprint and thermal resistance (RθJA = 220°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VI (Pin 1) | Input supply connection | Accepts 2.5–6 V; requires local 4.7 µF ceramic decoupling placed adjacent to pin for stable operation. |
| GND (Pin 2) | Power ground reference | Primary return path for input/output currents; must be connected to low-impedance ground plane. |
| EN (Pin 3) | Enable control input | Active-high logic input; pulling below 0.4 V disables converter and reduces IQ to 0.1 µA. |
| FB (Pin 4) | Feedback node | Internally connected to fixed resistor divider for 1.8 V output; not user-adjustable on TPS62202DBVTG4. |
| SW (Pin 5) | Switch node | Drives external 10 µH inductor; carries high di/dt switching current - requires short, low-inductance trace routing. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Maintains output 0.8% above nominal during light load to minimize voltage droop during sudden load transients to 300 mA. |
| 100% Duty-Cycle Operation | Enables regulation down to VIN – VOUT ≈ 100 mV, maximizing usable battery voltage range in Li-ion systems. |
| Integrated Soft Start | Digitally stepped current ramp limits inrush; achieves full regulation in ~800 µs with 10 µF COUT and 200 mA load. |
| Power-Save Mode (PFM) | Reduces switching frequency and quiescent current to 15 µA at light loads while maintaining regulation accuracy. |
| Low-ESR Ceramic Optimization | Designed for 4.7 µF input and 10 µF output ceramic capacitors - eliminates need for bulkier tantalum or electrolytic types. |
Applications
| Smartphone Baseband Power | PDA Application Processor Supply |
|---|---|
Use Scenario: Powers ARM-based application processor core in smartphone during active and standby modes. IC Role / Device Role / Timing Role: Primary 1.8 V core rail regulator with dynamic voltage positioning to handle burst-mode CPU activity. Use Value: Delivers 300 mA peak current with <1% output ripple and 95% efficiency, extending talk time by minimizing conversion losses. |
Use Scenario: Supplies 1.8 V to PDA main processor and memory interface under variable workload. IC Role / Device Role / Timing Role: Fixed-output buck converter operating in PWM/PFM hybrid mode for adaptive power delivery. Use Value: 15 µA quiescent current in PFM mode significantly reduces idle power draw, increasing PDA battery runtime between charges. |
| Digital Camera Image Sensor Bias | Portable Media Player Audio Codec Rail |
Use Scenario: Provides clean, low-noise 1.8 V bias to CMOS image sensor in compact digital camera modules. IC Role / Device Role / Timing Role: Low-ripple DC-DC source with fast transient response to support sensor frame-rate switching. Use Value: 10 µF ceramic output capacitor suffices for <50 mV transient droop - eliminates need for larger, costlier alternatives. |
Use Scenario: Supplies 1.8 V to stereo audio codec and DAC in portable media player during playback and pause. IC Role / Device Role / Timing Role: Efficient, low-IQ regulator supporting both active decode and deep-sleep states. Use Value: 100% duty-cycle capability allows full utilization of depleted 3.0 V Li-ion cell, delaying low-battery shutdown. |
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 electrical specs except VO and FB configuration. | Requires redesign of output filtering and load compatibility if 1.8 V rail is mandatory. | Select when system requires 3.3 V instead of 1.8 V; no layout change needed. |
| TPS62231DRVR | Higher 600 mA output, 2.05–6.0 V input, 3.0 MHz switching, and improved 12 µA IQ - but in 6-pin WSON package. | Not pin-compatible; requires PCB redesign due to different footprint, thermal pad, and pin assignment. | Choose for higher current or tighter size constraints where board rework is acceptable. |
Compared with TPS62203DBVT, TPS62202DBVTG4 provides lower output voltage critical for modern low-power cores; compared with TPS62231DRVR, it offers proven 1.8 V stability in legacy portable designs with zero layout impact.
Availability
TPS62202DBVTG4 is available at Aetrix Electronics and suitable for smartphone baseband power, PDA processor supplies, and digital camera sensor bias requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62202DBVTG4 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 ultra-low-power portable electronics, emphasizing minimal quiescent current, small solution size, and seamless transition between PWM and PFM modes - all embodied in the TPS62202DBVTG4.
FAQ
What is the output voltage tolerance of the TPS62202DBVTG4 over temperature and load?
The TPS62202DBVTG4 maintains a fixed 1.8 V output with ±3% tolerance across the full operating ambient temperature range (–40°C to +85°C) and over the entire 0–300 mA load range, as specified in the Electrical Characteristics table under "Fixed output voltage" test conditions. This tolerance includes line, load, and temperature effects - no external trimming is required.
Does the TPS62202DBVTG4 require external feedback resistors to set its output voltage?
No. The TPS62202DBVTG4 is the fixed 1.8 V version of the TPS6220x family and contains an internal precision resistor divider connected to the FB pin. Unlike the adjustable TPS62200, it does not require external R1/R2 components - simplifying design and reducing BOM count.
Can the TPS62202DBVTG4 operate with a 2.5 V input and still regulate 1.8 V output?
Yes. The TPS62202DBVTG4 supports input voltages as low as 2.5 V and delivers regulated 1.8 V output using 100% duty-cycle operation. At 2.5 V input, the minimum dropout is approximately 100 mV, enabling full utilization of partially discharged Li-ion cells down to ~2.6 V before regulation loss.
What is the recommended inductor value for the TPS62202DBVTG4, and why?
Texas Instruments recommends a 10 µH inductor (e.g., Sumida CDRH5D28-100) for the TPS62202DBVTG4. This value balances efficiency (>95% peak), transient response, and physical size - yielding ~20% inductor ripple current at 300 mA while avoiding saturation at the 670 mA switch current limit.
How does the power-save mode affect output voltage accuracy in the TPS62202DBVTG4?
In power-save (PFM) mode, the TPS62202DBVTG4 regulates output voltage using comparator thresholds set 0.8% below and 1.6% above nominal 1.8 V, resulting in dynamic voltage positioning. This yields a typical output ripple of 1% of VO - not dependent on output capacitance - and ensures robust transient response without requiring larger capacitors.
TPS62202DBVTG4 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):
- 1.8V
- 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
TPS62202DBVTG4 FAQ
1.How can I place an order for TPS62202DBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62202DBVTG4 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 TPS62202DBVTG4 reliable?
The price and inventory of TPS62202DBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62202DBVTG4 is usually 5 days.
3.What payment methods are accepted for TPS62202DBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62202DBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62202DBVTG4?
TPS62202DBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62202DBVTG4 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 TPS62202DBVTG4?
For technical support, including TPS62202DBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62202DBVTG4 requirements.
6.How does Aetrix verify that TPS62202DBVTG4 is sourced from the original manufacturer or authorized distributors?
All TPS62202DBVTG4 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 TPS62202DBVTG4 meets industry standards.
7.What is the process for return or replacement of TPS62202DBVTG4?
All TPS62202DBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62202DBVTG4, 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 TPS62202DBVTG4 part is unused and in its original packaging.
Return procedure for TPS62202DBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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