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Texas Instruments TPS622310DRYR
- Part No.:
- TPS622310DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622310DRYR.pdf
- Description:
- IC REG BUCK 2.3V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,806
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Product details
Overview
TPS622310DRYR from Texas Instruments is a 2.3-V fixed-output, 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 94% peak efficiency, 22-μA quiescent current in power-save mode, and 0.7-V internal reference voltage. It serves as a high-efficiency replacement for LDOs in space-constrained portable audio and low-power wireless systems.
For engineers reviewing the TPS622310DRYR datasheet, TPS622310DRYR pinout, TPS622310DRYR application, or TPS622310DRYR equivalent, key selection criteria include its 2.05–6-V input range, forced-PWM capability via MODE pin, 12-mm² minimum PCB solution size, and thermal shutdown at 150°C - all critical for battery-powered embedded designs requiring ultra-small footprint and low-noise regulation.
Technical Context
The TPS622310DRYR implements a hysteretic PWM controller topology enabling 3-MHz switching with excellent AC load regulation and <1% output voltage ripple across 0–500 mA loads. Its dual-mode operation - automatic PFM/PWM transition at light-to-medium loads and forced-PWM mode when MODE = VIN - ensures both ultra-low IQ (22 μA) and predictable EMI behavior.
Internally, it integrates PMOS/NMOS synchronous switches with 600-mΩ/350-mΩ typical RDS(ON), a 0.7-V precision bandgap reference, undervoltage lockout (UVLO) with 1.9-V rising threshold, and soft-start with ~100-μs VOUT ramp time. The feedback loop uses direct FB-to-VOUT connection without external resistor divider, as output voltage is factory-fixed at 2.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.3 V ±2.5% over –40°C to 125°C junction temperature - eliminates external feedback resistors and simplifies layout. |
| Switching Frequency | 3 MHz nominal - enables use of 2.2-μH inductor and 4.7-μF output capacitor for compact 12-mm² solution. |
| Max Output Current | 500 mA continuous - supported by internal 850-mA high-side current limit and thermal shutdown at 150°C. |
| Quiescent Current | 22 μA in power-save mode (MODE = GND) - extends battery life in always-on sensor or standby circuits. |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion (2.5–4.2 V), Li-primary, or two-alkaline battery inputs without dropout issues. |
| Efficiency | Up to 94% at medium load - reduces thermal stress and improves power density versus linear regulators. |
| Package | USON-6 (DRY), 1.0 mm × 1.5 mm × 0.6 mm - compatible with automated assembly and fits under 0.6-mm height constraints. |
Pinout & Package
TPS622310DRYR is housed in a 6-pin, 1.0 mm × 1.5 mm × 0.6 mm wettable-flank USON (DRY) package with exposed thermal pad (non-electrical). Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise orientation from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE | Mode control input | Pull low for auto PFM/PWM; pull high for forced PWM - enables deterministic noise filtering in RF-sensitive designs. |
| SW | Power switch node | Connects to inductor - carries high di/dt switching current; requires tight layout and Kelvin connection to minimize ringing. |
| VIN | Main power input | Accepts 2.05–6 V; must be decoupled with ≥2.2-μF ceramic capacitor close to pin for stability and transient response. |
| FB | Feedback input | Internally connected to 2.3-V reference; externally tied directly to VOUT - no external resistors needed. |
| EN | Enable input | Active-high logic; <0.6-V threshold for disable - supports precise power sequencing with other rails. |
| GND | Power ground | Primary return path for SW, VIN, and internal circuitry - must connect to low-impedance ground plane under thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | 12 mm² total PCB area using only 2.2-μH inductor and 4.7-μF output capacitor - ideal for wearables and hearing aids. |
| High PSRR (up to 90 dB) | Maintains clean 2.3-V output despite noisy input sources - suitable for analog/RF supply domains without extra LC filtering. |
| 100% duty cycle operation | Enables lowest possible dropout - delivers regulated 2.3 V even when VIN drops to 2.3 V, extending battery runtime. |
| Thermal shutdown with hysteresis | Shuts down at 150°C; resumes at 130°C - protects against sustained overload while preventing thermal oscillation. |
| Pre-biased start-up support | Starts safely into precharged output capacitor - prevents reverse current flow and system-level brownout during hot-plug events. |
Applications
| Portable Audio Codec Supply | Wireless Sensor Node Core Rail |
|---|---|
|
Use Scenario: Powers stereo audio codec in Bluetooth earbuds with Li-ion battery input varying from 4.2 V to 2.8 V. IC Role / Device Role / Timing Role: Primary 2.3-V core supply for ADC/DAC and digital interface logic. Use Value: 94% efficiency minimizes heat near ear canal; 3-MHz switching moves noise beyond audible band; 22-μA IQ extends playback time in pause mode. |
Use Scenario: Supplies 32-bit ARM Cortex-M0+ MCU and sub-GHz RF transceiver in battery-operated environmental sensor. IC Role / Device Role / Timing Role: Main system rail enabling low-power active/sleep cycling with fast wake-up. Use Value: 100% duty cycle sustains 2.3 V output down to 2.3 V VIN - maximizes usable battery capacity; forced-PWM mode ensures consistent timing for RF calibration. |
| Digital Camera Image Sensor Bias | Low-Power DSP Core Supply |
|
Use Scenario: Provides clean 2.3-V bias to CMOS image sensor in compact action camera with limited board area. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupled from digital switching noise. Use Value: High PSRR (90 dB) rejects noise from nearby processor and memory; 12-mm² footprint frees space for optics and battery. |
Use Scenario: Delivers stable 2.3-V supply to TI C5000 DSP core in portable medical diagnostic device. IC Role / Device Role / Timing Role: Precision voltage source for signal processing pipeline requiring minimal voltage drift. Use Value: ±2.5% output accuracy over –40°C to 125°C ensures consistent ADC reference; soft-start prevents inrush-induced system reset. |
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 1.8-V logic or I/O supply is required instead of 2.3 V. | Select TPS62231DRYR only if target system requires 1.8 V - no PCB change needed due to pin-to-pin compatibility. |
| TPS62232DRYR | Fixed 1.2-V output; same USON-6 package and functional behavior, differing only in feedback reference. | Suitable for low-voltage microcontroller cores or FPGA I/O banks needing 1.2 V. | Choose TPS62232DRYR when lower output voltage is mandated - shares identical layout, BOM, and thermal profile. |
Compared with TPS622310DRYR, TPS62231DRYR and TPS62232DRYR offer identical dynamic performance, package, and feature set but differ solely in factory-trimmed output voltage - enabling drop-in selection across 1.2 V, 1.8 V, and 2.3 V rails without redesigning power stage layout or recalculating compensation.
Availability
TPS622310DRYR is available at Aetrix Electronics and suitable for portable audio, wireless sensor nodes, and digital camera applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPS622310DRYR 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 and embedded processing technologies, with leadership in power management ICs for portable and industrial applications.
The TPS6223x product line was designed specifically for ultra-compact, high-efficiency DC-DC conversion in battery-powered devices - prioritizing minimal solution size, low quiescent current, and robust operation across wide input voltage and temperature ranges.
FAQ
What is the fixed output voltage of the TPS622310DRYR?
The TPS622310DRYR has a factory-trimmed fixed output voltage of 2.3 V with ±2.5% accuracy over –40°C to 125°C junction temperature. This eliminates the need for external feedback resistors and ensures consistent regulation without calibration. The 2.3-V level is optimized for interfacing with specific low-voltage logic families and analog sensors requiring precise biasing.
Does the TPS622310DRYR require external feedback resistors?
No, the TPS622310DRYR does not require external feedback resistors. Its 2.3-V output is internally set using a precision 0.7-V bandgap reference and fixed resistor divider. The FB pin must be connected directly to the output capacitor - no external components are needed for voltage setting, reducing BOM count and PCB area.
How does the MODE pin affect TPS622310DRYR operation?
The MODE pin on the TPS622310DRYR selects between two operating modes: when pulled low (to GND), it enables automatic PFM/PWM transition for highest light-load efficiency (22 μA IQ); when pulled high (to VIN), it forces continuous PWM mode for predictable switching frequency and reduced output ripple - critical for noise-sensitive RF or audio circuits.
What is the minimum input voltage required for TPS622310DRYR startup?
The TPS622310DRYR requires a minimum input voltage of 2.05 V to initiate startup, per its undervoltage lockout (UVLO) specification. Once enabled, it supports 100% duty cycle operation, allowing regulated 2.3-V output even as VIN declines to 2.3 V - maximizing usable energy from aging or deeply discharged batteries.
Is the TPS622310DRYR pin-compatible with other TPS6223x variants?
Yes, the TPS622310DRYR is pin-compatible with all members of the TPS6223x family in the DRY (USON-6) package, including TPS62231DRYR (1.8 V) and TPS62232DRYR (1.2 V). Identical pinout, package dimensions, and electrical interface allow seamless voltage rail substitution without PCB revision - only the output voltage differs.
TPS622310DRYR 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)
TPS622310DRYR FAQ
1.How can I place an order for TPS622310DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622310DRYR 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 TPS622310DRYR reliable?
The price and inventory of TPS622310DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622310DRYR is usually 5 days.
3.What payment methods are accepted for TPS622310DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622310DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622310DRYR?
TPS622310DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622310DRYR 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 TPS622310DRYR?
For technical support, including TPS622310DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622310DRYR requirements.
6.How does Aetrix verify that TPS622310DRYR is sourced from the original manufacturer or authorized distributors?
All TPS622310DRYR 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 TPS622310DRYR meets industry standards.
7.What is the process for return or replacement of TPS622310DRYR?
All TPS622310DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS622310DRYR, 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 TPS622310DRYR part is unused and in its original packaging.
Return procedure for TPS622310DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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