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Texas Instruments TPS62234DRYR
- Part No.:
- TPS62234DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62234DRYR.pdf
- Description:
- IC REG BUCK 2.1V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:6,353
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Product details
Overview
TPS62234DRYR from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter in a 1 mm × 1.5 mm USON-6 package, delivering up to 500 mA output current with fixed 2.1 V output voltage, 2.05 V to 6 V input range, and 22 μA quiescent current in power-save mode - used for low-power DSP core supply and portable media devices.
For engineers reviewing the TPS62234DRYR datasheet, TPS62234DRYR pinout, TPS62234DRYR application, or TPS62234DRYR equivalent, key selection criteria include its 3-MHz switching frequency enabling ultra-small filter components (2.2 μH inductor, 4.7 μF capacitor), forced PWM mode capability via MODE pin, and thermal shutdown at 150°C for robust operation in space-constrained battery-powered systems.
Technical Context
The TPS62234DRYR implements a hysteretic PWM controller topology supporting both automatic power-save mode (PFM/PWM transition) and forced PWM mode via external MODE pin control. Its internal 0.7 V reference and feedback loop regulate output with ±2.5% accuracy across –40°C to 125°C junction temperature.
It integrates high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs, features 135 ns minimum on-time, 40 ns minimum off-time, and undervoltage lockout with 1.9 V rising threshold - optimized for Li-ion, Li-primary, or dual-alkaline battery inputs where input can dip to 2.05 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.1 V - eliminates external resistor divider, simplifies layout for dedicated core rail |
| Switching Frequency | 3 MHz - enables use of 2.2 μH inductor and 4.7 μF output capacitor for <12 mm² total solution size |
| Max Output Current | 500 mA - supported by internal 850 mA typical switch current limit under thermal limits |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion (2.7–4.2 V), Li-primary, or two alkaline cells (2.0–3.2 V) |
| Quiescent Current | 22 μA in PFM mode - extends battery life in standby/low-load states without sacrificing regulation |
| Efficiency | Up to 94% - reduces thermal load in sealed portable enclosures with limited airflow |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects silicon during sustained overload or poor PCB thermal design |
Pinout & Package
TPS62234DRYR uses a 6-pin 1.0 mm × 1.5 mm × 0.6 mm USON (DRY) package with wettable flank terminations for automated optical inspection. The exposed pad is electrically connected to GND and must be soldered to PCB thermal pad for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (Pin 1) | Mode Control Input | Pull low for automatic PFM/PWM transition; pull high for forced PWM mode - critical for noise-sensitive RF/audio rails |
| SW (Pin 2) | Power Switch Node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance trace to minimize EMI |
| VIN (Pin 3) | Input Power Supply | Accepts 2.05–6 V; requires local 2.2 μF ceramic capacitor placed within 2 mm of pin for stability |
| GND (Pin 4) | Power Ground | Common return for VIN, SW, FB, EN, MODE; must connect directly to thermal pad and system ground plane |
| EN (Pin 5) | Enable Input | Active-high logic; must be terminated (no internal pull-up); enables power sequencing with other rails |
| FB (Pin 6) | Feedback Input | Direct connection to output capacitor; no external resistors needed - fixed 2.1 V output uses internal divider |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Small Solution Size | 12 mm² board area with 0.6 mm max height - fits behind 0.5 mm pitch connectors or beneath display modules |
| High PSRR (up to 90 dB) | Rejects ripple from noisy upstream sources (e.g., USB chargers, boost converters) without additional LDO stage |
| 100% Duty Cycle Operation | Enables lowest dropout - maintains regulation even when VIN drops to VOUT + 0.1 V (e.g., 2.2 V input for 2.1 V out) |
| Soft-Start (100 μs) | Prevents inrush current into pre-biased outputs - avoids brownout in multi-rail systems during cold start |
| Shutdown Current <1 μA | Enables true system-level power gating - essential for IoT sensor nodes requiring years of shelf life |
Applications
| Portable Audio Playback | Low-Power DSP Core Supply |
|---|---|
Use Scenario: Powering audio codec ICs (e.g., TLV320AIC3104) in Bluetooth earbuds with Li-ion battery input. IC Role / Device Role / Timing Role: Primary buck regulator supplying clean 2.1 V analog/digital core rail with low output ripple and high PSRR. Use Value: Eliminates need for post-regulation LDO, reducing BOM count and thermal load while meeting SNR >95 dB requirements. | Use Scenario: Delivering stable 2.1 V to TI C55x or CEVA-X DSP cores in wearable health monitors. IC Role / Device Role / Timing Role: Fixed-output synchronous buck converter providing regulated core voltage during variable computational load. Use Value: Maintains 94% efficiency at 10–500 mA load range, extending runtime between charges without derating at 125°C junction temp. |
| Digital Camera Sensor Bias | Wireless Sensor Node MCU Rail |
Use Scenario: Supplying image sensor analog front-end (AFE) in compact action cameras powered by 3.7 V Li-ion. IC Role / Device Role / Timing Role: Low-noise DC-DC source replacing linear regulator to reduce heat near CMOS sensor die. Use Value: 3-MHz switching pushes noise above audible band and away from sensor sampling frequencies, preventing pattern noise. | Use Scenario: Powering Nordic nRF52840 or Silicon Labs EFR32BG22 in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Main system rail with enable-controlled sequencing and sub-μA shutdown for deep-sleep modes. Use Value: 22 μA quiescent current in PFM mode enables >5-year battery life on CR2032 when paired with duty-cycled radio operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.8 V output; identical package, pinout, and electrical specs except VOUT | Used where lower core voltage required (e.g., ARM Cortex-M0+ at 1.8 V), not drop-in for 2.1 V systems | Select only if target rail matches 1.8 V; verify load transient response meets timing margin for specific MCU |
| TPS62232DRYR | Fixed 1.2 V output; same switching frequency, thermal specs, and package | Targets ultra-low-voltage digital logic (e.g., FPGA I/O banks or ASIC cores), incompatible with 2.1 V requirement | Not suitable for direct replacement; requires full schematic and layout review due to different feedback setpoint |
Compared with TPS62234DRYR, TPS62231DRYR and TPS62232DRYR share identical thermal, package, and control architecture but differ exclusively in fixed output voltage - making them functionally parallel variants rather than drop-in alternatives for 2.1 V applications.
Availability
TPS62234DRYR is available at Aetrix Electronics and suitable for portable audio, low-power DSP core supply, and wireless sensor node applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62234DRYR 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 company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and connectivity products for industrial, automotive, and personal electronics markets.
The TPS6223x product line delivers ultra-small, high-frequency synchronous buck converters targeting space-constrained battery-powered devices where minimal solution size, high efficiency at light loads, and low-noise operation are critical design requirements.
FAQ
What is the fixed output voltage of the TPS62234DRYR?
The TPS62234DRYR has a factory-trimmed fixed output voltage of 2.1 V. This value is set internally using a precision resistor divider network, eliminating the need for external feedback resistors. The output voltage accuracy is specified as ±2.5% over the full –40°C to 125°C junction temperature range, ensuring stable rail generation for sensitive analog and digital circuits without calibration.
Does the TPS62234DRYR require external feedback resistors?
No, the TPS62234DRYR does not require external feedback resistors. It integrates an internal resistor divider referenced to a 0.7 V bandgap, configured to deliver its fixed 2.1 V output. Pin 6 (FB) must be connected directly to the output capacitor's positive terminal - no resistive network or compensation components are needed, simplifying layout and reducing BOM count.
How does the MODE pin affect operation of the TPS62234DRYR?
The MODE pin on the TPS62234DRYR selects between two operating modes: pulling MODE low enables automatic power-save mode (PFM at light loads, PWM at heavy loads), while pulling MODE high forces continuous PWM operation across all load conditions. Forced PWM eliminates low-frequency switching artifacts, making it ideal for noise-sensitive applications like RF transceivers or high-fidelity audio paths.
What is the minimum input voltage required for the TPS62234DRYR to start up?
TPS62234DRYR requires a minimum input voltage of 2.05 V to initiate startup. Below this threshold, the undervoltage lockout (UVLO) circuit prevents switching. The rising UVLO threshold is 1.9 V to 2.05 V, allowing reliable operation down to nearly depleted Li-primary or dual-alkaline battery voltages while maintaining regulation until VIN falls below 1.9 V.
Can the TPS62234DRYR operate with a pre-biased output capacitor?
Yes, the TPS62234DRYR supports start-up into a pre-biased output capacitor. Its soft-start circuitry detects the existing output voltage and ramps the output monotonically to the nominal 2.1 V level without causing reverse current flow or output overshoot - a critical feature for hot-plug scenarios and multi-rail power sequencing in portable systems.
TPS62234DRYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-UFDFN
- 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):
- 2.05V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.1V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (1.45x1)
TPS62234DRYR FAQ
1.How can I place an order for TPS62234DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62234DRYR 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 TPS62234DRYR reliable?
The price and inventory of TPS62234DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62234DRYR is usually 5 days.
3.What payment methods are accepted for TPS62234DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62234DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62234DRYR?
TPS62234DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62234DRYR 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 TPS62234DRYR?
For technical support, including TPS62234DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62234DRYR requirements.
6.How does Aetrix verify that TPS62234DRYR is sourced from the original manufacturer or authorized distributors?
All TPS62234DRYR 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 TPS62234DRYR meets industry standards.
7.What is the process for return or replacement of TPS62234DRYR?
All TPS62234DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62234DRYR, 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 TPS62234DRYR part is unused and in its original packaging.
Return procedure for TPS62234DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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