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Texas Instruments TPS622310DRYT
- Part No.:
- TPS622310DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622310DRYT.pdf
- Description:
- IC REG BUCK 2.3V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:665
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Product details
Overview
TPS622310DRYT 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 2.3 V output, 2.05 V to 6 V input range, and 94% peak efficiency - optimized for portable audio and low-power wireless power rails.
For engineers reviewing the TPS622310DRYT datasheet, TPS622310DRYT pinout, TPS622310DRYT application, or TPS622310DRYT equivalent, key selection criteria include its ultra-small 12 mm² solution size, 22 μA quiescent current in power-save mode, forced PWM capability via MODE pin, and compatibility with 2.2 μH inductor + 4.7 μF output capacitor.
Technical Context
The TPS622310DRYT implements a hysteretic PWM controller topology enabling 3 MHz switching with excellent AC load regulation and low output ripple across 0–500 mA loads. It supports automatic transition between pulse frequency modulation (PFM) at light loads and quasi-fixed-frequency PWM at medium/heavy loads.
Its internal 0.7 V reference feeds a precision feedback loop; the FB pin connects directly to the output capacitor for stable regulation. The device integrates high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs, with thermal shutdown at 150°C and undervoltage lockout (UVLO) active below 1.8 V (falling).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.3 V ±2.5% over –40°C to 125°C junction temperature |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion, Li-primary, or two alkaline cells |
| Switching Frequency | 3 MHz - enables compact 2.2 μH inductor and minimal PCB area |
| Max Output Current | 500 mA - sustained under thermal limits with proper board layout |
| Quiescent Current | 22 μA in PFM mode - extends battery life in standby/sleep states |
| Efficiency Peak | 94% - achieved at mid-load with 3.6 V input and 2.3 V output |
| Shutdown Current | <1 μA - ensures zero-load battery drain during system off-state |
Pinout & Package
TPS622310DRYT is housed in a 1.0 mm × 1.5 mm × 0.6 mm, 6-pin USON (DRY) package with wettable flanks, optimized for automated optical inspection and high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE | Mode control input | Pull low for auto PFM/PWM; pull high for forced PWM - eliminates audible noise and enables predictable EMI filtering |
| SW | Power switch node | Connects to external inductor; carries high di/dt switching current - requires tight loop layout to minimize EMI |
| VIN | Main power input | Accepts 2.05–6 V; must be decoupled with ≥2.2 μF ceramic capacitor close to pin |
| FB | Feedback input | Direct connection to output capacitor - sets regulation point via internal 0.7 V reference |
| EN | Enable input | Active-high logic; <1 μA leakage - enables power sequencing with other rails |
| GND | Power ground | Primary return path for SW, VIN, and internal circuitry - must connect to solid thermal pad under package |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution footprint | 12 mm² total PCB area - achieved with 2.2 μH inductor and 4.7 μF output capacitor |
| Low-noise power-save mode | 22 μA IQ with sub-audible PFM frequency - suitable for sensitive analog/RF circuits |
| Forced PWM operation | Eliminates pulse skipping - enables deterministic EMI filtering and stable regulation under dynamic loads |
| High PSRR | Up to 90 dB at 100 kHz - suppresses input supply noise without additional LDO stage |
| 100% duty cycle capability | Enables lowest dropout operation - maintains regulation even when VIN ≈ VOUT |
Applications
| Portable Audio Power Rail | Low-Power Wireless Transceiver Supply |
|---|---|
Use Scenario: Powering DAC, headphone amplifier, or MEMS microphone bias in Bluetooth earbuds. IC Role / Device Role / Timing Role: Primary DC-DC regulator replacing LDO to improve battery runtime while maintaining low output ripple. Use Value: 22 μA quiescent current extends standby time; 94% efficiency at 100 mA load reduces thermal load on compact enclosure. | Use Scenario: Supplying 2.3 V to BLE SoC RF core and digital baseband during transmit/receive bursts. IC Role / Device Role / Timing Role: High-transient-response buck converter synchronized to radio activity via EN pin control. Use Value: 3 MHz switching minimizes output voltage droop during 100 mA burst currents; forced PWM mode ensures clean spectral profile for RF coexistence. |
| Digital Camera Image Sensor Bias | Wearable Health Monitor Core Supply |
Use Scenario: Providing regulated 2.3 V to CMOS image sensor analog front-end and ADC reference. IC Role / Device Role / Timing Role: Low-noise, high-PSRR power source isolating sensor from noisy digital subsystems. Use Value: 90 dB PSRR rejects digital switching noise; 12 mm² solution fits within tight camera module height constraint (≤0.6 mm). | Use Scenario: Powering ultra-low-power MCU and optical heart-rate sensor in wrist-worn fitness tracker. IC Role / Device Role / Timing Role: Always-on supply with deep-sleep current optimization and fast wake-up response. Use Value: 100 μs start-up time enables rapid sensor activation; shutdown current <1 μA preserves coin-cell battery for multi-month 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 |
|---|---|---|---|
| TPS62231DRYT | Fixed 1.8 V output; identical package, pinout, and electrical specs except VOUT | Requires redesign of feedback network if used as drop-in replacement - not compatible for 2.3 V systems | Select only when 1.8 V rail is required; no layout change needed |
| TPS622312DRYT | Fixed 2.0 V output; same 3 MHz frequency, USON-6 package, and feature set | Suitable for systems where 2.0 V tolerance allows substitution - output differs by 130 mV vs. TPS622310DRYT's 2.3 V | Verify load regulation and system margin before substitution; no PCB change required |
Compared with TPS62231DRYT and TPS622312DRYT, the TPS622310DRYT provides the precise 2.3 V output required for specific analog sensor biasing and RF IC supply rails, with identical thermal, layout, and control interface behavior - making it the optimal choice where that exact voltage is specified.
Availability
TPS622310DRYT is available at Aetrix Electronics and suitable for portable audio, low-power wireless, and wearable health monitor designs requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS622310DRYT 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 specializing in analog, embedded processing, and power management technologies, with leadership in high-efficiency DC-DC conversion for battery-powered systems.
The TPS6223x product line was designed specifically for space-constrained, battery-operated devices needing ultra-small, high-frequency buck converters with low IQ and low-noise operation - targeting portable media, wearables, and wireless edge nodes.
FAQ
What is the output voltage tolerance of the TPS622310DRYT over temperature?
The TPS622310DRYT has a fixed 2.3 V output with ±2.5% accuracy over the full operating junction temperature range of –40°C to 125°C. This specification is guaranteed per TI's SLVS941G datasheet Section 7.5, and includes initial tolerance, line regulation, and load regulation effects - ensuring stable biasing for precision analog circuits across environmental extremes. The TPS622310DRYT uses an internal 0.7 V reference and resistor divider to achieve this accuracy without external components.
Can the TPS622310DRYT operate with a 2.1 V input voltage?
No, the TPS622310DRYT cannot operate reliably at 2.1 V input. Its absolute minimum input voltage is 2.05 V, but the recommended minimum is higher depending on output voltage: for 2.3 V output, the datasheet specifies a minimum VIN of 2.5 V at 350 mA load and 3 V at 500 mA load (Section 7.3). At 2.1 V, the device remains below UVLO rising threshold (1.9–2.05 V), preventing startup. The TPS622310DRYT requires ≥2.5 V for functional operation under typical load conditions.
Does the TPS622310DRYT require an external feedback resistor network?
No, the TPS622310DRYT does not require an external feedback resistor network. It is a fixed-output converter with internally trimmed 2.3 V regulation, achieved via an integrated resistor divider referenced to the 0.7 V internal bandgap. The FB pin connects directly to the output capacitor per the typical application schematic (Section 9.2), eliminating component count and layout sensitivity. This distinguishes the TPS622310DRYT from adjustable variants like the TPS6223x family members with external FB dividers.
What is the thermal resistance (RθJA) of the TPS622310DRYT in its DRY package?
For the TPS622310DRYT in the 6-pin USON (DRY) package, the junction-to-ambient thermal resistance RθJA is 294.5°C/W under standard JEDEC JESD51-7 conditions (Section 7.4). This value assumes a 2-layer board with 1-in² copper pour under the package. Real-world RθJA will improve significantly with enhanced thermal vias and larger ground planes - critical for sustaining 500 mA output current. The TPS622310DRYT's thermal shutdown activates at 150°C to protect against sustained overload.
How does the MODE pin affect efficiency and noise performance of the TPS622310DRYT?
When the MODE pin of the TPS622310DRYT is pulled low (GND), the device operates in automatic PFM/PWM mode - maximizing efficiency at light loads (e.g., 22 μA IQ) but generating variable-frequency switching noise. When pulled high (VIN), it enters forced PWM mode - maintaining fixed 3 MHz operation, enabling predictable EMI filtering, and reducing output voltage ripple at the cost of higher light-load IQ (~3 mA). This dual-mode flexibility lets designers optimize the TPS622310DRYT for either battery life or signal integrity based on system requirements.
TPS622310DRYT 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):
- 2.3V
- 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)
TPS622310DRYT FAQ
1.How can I place an order for TPS622310DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622310DRYT 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 TPS622310DRYT reliable?
The price and inventory of TPS622310DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622310DRYT is usually 5 days.
3.What payment methods are accepted for TPS622310DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622310DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622310DRYT?
TPS622310DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622310DRYT 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 TPS622310DRYT?
For technical support, including TPS622310DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622310DRYT requirements.
6.How does Aetrix verify that TPS622310DRYT is sourced from the original manufacturer or authorized distributors?
All TPS622310DRYT 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 TPS622310DRYT meets industry standards.
7.What is the process for return or replacement of TPS622310DRYT?
All TPS622310DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS622310DRYT, 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 TPS622310DRYT part is unused and in its original packaging.
Return procedure for TPS622310DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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