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Texas Instruments TPS622317DRYR
- Part No.:
- TPS622317DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622317DRYR.pdf
- Description:
- IC REG BUCK 2.9V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,995
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Product details
Overview
TPS622317DRYR from Texas Instruments is a 2.9-V fixed-output, 3-MHz synchronous step-down DC-DC converter in a 1-mm × 1.5-mm USON-6 package. It delivers up to 500 mA output current with 22 μA quiescent current in power-save mode, supports 2.05 V to 6 V input range, and achieves up to 94% efficiency - ideal for space-constrained Li-ion–powered portable audio and low-power wireless devices.
For engineers reviewing the TPS622317DRYR datasheet, TPS622317DRYR pinout, TPS622317DRYR application, or TPS622317DRYR equivalent, key selection criteria include its 2.9-V fixed output, ultra-small 12-mm² solution size, forced-PWM/PSM dual-mode operation, 0.7-V internal reference, and thermal shutdown at 150°C - all critical for battery-operated systems requiring high PSRR and low output ripple.
Technical Context
The TPS622317DRYR implements a hysteretic PWM controller topology enabling stable 3-MHz switching with excellent AC load regulation and minimal output voltage ripple. Its integrated high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs support continuous conduction mode in forced PWM and discontinuous mode in power-save mode.
It features a 0.7-V internal reference, 135-ns minimum on-time, and automatic transition between PFM (for light-load efficiency) and PWM (for noise-sensitive operation). The device includes undervoltage lockout (1.8 V falling threshold), thermal shutdown (150°C), and soft-start (100 μs typical startup time).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.9 V ±2.5% over –40°C to 125°C - ensures stable core supply for DSPs or RF ICs without external feedback resistors. |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion (2.7–4.2 V), Li-primary, or two alkaline cells across full discharge curve. |
| Switching Frequency | 3 MHz - enables use of tiny 2.2-μH inductors and 4.7-μF output capacitors for <12-mm² PCB area. |
| Max Output Current | 500 mA - sufficient for low-power microcontrollers, sensors, or RF transceivers in portable designs. |
| Quiescent Current | 22 μA in power-save mode - extends battery life in always-on monitoring or sleep-state applications. |
| Efficiency | Up to 94% - reduces thermal stress and improves runtime vs. LDO alternatives in medium-load conditions. |
| PSRR | Up to 90 dB - suppresses input supply noise critical for analog audio paths and sensitive RF receivers. |
Pinout & Package
TPS622317DRYR uses a 6-pin USON (DRY) package measuring 1.0 mm × 1.5 mm × 0.6 mm, optimized for ultra-dense layouts with ≤0.6-mm solution height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE | Mode control input | Pull low for automatic PFM/PWM transition; pull high for forced PWM - enables deterministic noise filtering in audio/RF stages. |
| SW | Switch node | Connects to external 2.2-μH inductor; carries high-frequency pulsed current - requires tight layout to minimize EMI and losses. |
| VIN | Input power supply | Accepts 2.05–6 V; must be decoupled with 2.2-μF ceramic capacitor close to pin to stabilize high-frequency switching. |
| FB | Feedback input | Internally connected to 2.9-V divider; not user-accessible - eliminates resistor tolerance errors and saves board space. |
| EN | Enable input | Active-high logic; must be terminated (no internal pull-down) - allows precise power sequencing with other rails. |
| GND | Power ground | Primary return path for switch current and IC bias - requires low-impedance connection to thermal pad for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | 12 mm² total footprint with only three external components (inductor + two capacitors) - fits within camera modules or hearing aids. |
| High PSRR (90 dB) | Rejects noise from noisy shared battery rails - preserves signal integrity in audio codecs and RF front-ends. |
| 100% duty cycle capability | Enables lowest dropout operation near end-of-life battery voltage - maintains 2.9-V output down to VIN = 2.9 V. |
| Thermal shutdown (150°C) | Protects against sustained overload or poor heatsinking - auto-recovers when junction cools by 20°C hysteresis. |
| Soft-start (100 μs) | Controls inrush current during power-up - prevents input rail collapse in high-impedance battery or PMIC-fed systems. |
Applications
| Portable Audio Playback | Low-Power Wireless Sensor Node |
|---|---|
Use Scenario: Powering DAC, headphone amplifier, and codec in Bluetooth earbuds with Li-ion battery. IC Role / Device Role / Timing Role: Primary 2.9-V supply regulator replacing inefficient LDO to extend playback time. Use Value: 94% efficiency and 22-μA quiescent current directly increase battery runtime by >30% vs. LDO under dynamic load. | Use Scenario: Supplying sub-GHz transceiver and ultra-low-power MCU in industrial temperature sensor node. IC Role / Device Role / Timing Role: Main system rail generator supporting deep-sleep wake-up bursts and RF transmission. Use Value: 3-MHz switching avoids interference with 2.4-GHz ISM band; PFM mode sustains 10-year battery life in sleep state. |
| Digital Camera Image Sensor Bias | Wearable Health Monitor Core Supply |
Use Scenario: Providing clean 2.9-V bias to CMOS image sensor and ISP in compact action camera. IC Role / Device Role / Timing Role: Low-noise, high-PSRR DC-DC converter minimizing switching artifacts in captured video. Use Value: 90-dB PSRR and optimized PFM ripple suppression prevent visible banding in low-light video capture. | Use Scenario: Powering optical heart-rate sensor ASIC and BLE SoC in wrist-worn fitness tracker. IC Role / Device Role / Timing Role: Compact, thermally efficient main regulator operating across wide ambient temperature range. Use Value: –40°C to 125°C junction rating and 0.6-mm profile enable reliable operation inside sealed, space-limited enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS622311DRYR | Fixed 1.1-V output; same 3-MHz frequency, package, and feature set. | Targets lower-voltage DSP cores or FPGA I/O banks instead of 2.9-V analog/audio rails. | Select when system requires 1.1-V rail with identical size and efficiency profile. |
| TPS622314DRYR | Fixed 1.5-V output; otherwise identical electrical and thermal specifications. | Suitable for 1.5-V logic domains or specific sensor interfaces incompatible with 2.9-V supply. | Choose for 1.5-V subsystems where pin compatibility and layout reuse are prioritized. |
Compared with TPS622317DRYR, TPS622311DRYR and TPS622314DRYR share identical USON-6 packaging, 3-MHz operation, and PFM/PWM modes but differ solely in factory-trimmed output voltage - enabling direct layout reuse across multiple voltage rails in multi-rail portable designs.
Availability
TPS622317DRYR is available at Aetrix Electronics and suitable for portable audio, low-power wireless sensor nodes, and digital camera image sensor biasing requiring stable component supply and long-term production continuity.
Supply support for TPS622317DRYR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS6223x product line was designed specifically for ultra-compact, high-efficiency battery-powered portable devices needing minimal external components and sub-12-mm² power solutions.
FAQ
What is the fixed output voltage of the TPS622317DRYR?
The TPS622317DRYR provides a factory-trimmed fixed output voltage of 2.9 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 for analog audio stages or RF biasing circuits without calibration.
Does the TPS622317DRYR support forced PWM mode?
Yes, the TPS622317DRYR supports forced PWM mode via the MODE pin: pulling MODE high disables power-save mode and locks the device into quasi-fixed-frequency 3-MHz operation. This is essential for noise-sensitive applications like audio amplifiers where deterministic switching frequency simplifies EMI filtering.
What is the minimum input voltage required for TPS622317DRYR startup?
The TPS622317DRYR requires a minimum input voltage of 2.05 V to initiate startup, as defined by its undervoltage lockout rising threshold. It remains functional down to the falling UVLO threshold of 1.8 V, enabling operation across the full discharge curve of Li-primary or two-alkaline-cell sources.
How does the TPS622317DRYR manage thermal protection?
The TPS622317DRYR integrates thermal shutdown that activates at 150°C junction temperature, turning off both MOSFETs. Operation resumes automatically once the junction cools by 20°C hysteresis. This protects against sustained overload in confined enclosures while maintaining reliability in wearable or medical-grade designs.
Can the TPS622317DRYR start into a prebiased output?
Yes, the TPS622317DRYR supports start-up into a prebiased output capacitor. When enabled, it begins regulating from the existing output voltage rather than discharging it, preventing disruptive voltage reversals in systems with multiple tightly coupled rails or hold-up capacitors.
TPS622317DRYR 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):
- 2.9V
- 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)
TPS622317DRYR FAQ
1.How can I place an order for TPS622317DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622317DRYR 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 TPS622317DRYR reliable?
The price and inventory of TPS622317DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622317DRYR is usually 5 days.
3.What payment methods are accepted for TPS622317DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622317DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622317DRYR?
TPS622317DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622317DRYR 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 TPS622317DRYR?
For technical support, including TPS622317DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622317DRYR requirements.
6.How does Aetrix verify that TPS622317DRYR is sourced from the original manufacturer or authorized distributors?
All TPS622317DRYR 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 TPS622317DRYR meets industry standards.
7.What is the process for return or replacement of TPS622317DRYR?
All TPS622317DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS622317DRYR, 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 TPS622317DRYR part is unused and in its original packaging.
Return procedure for TPS622317DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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