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Texas Instruments TPS622315DRYR
- Part No.:
- TPS622315DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622315DRYR.pdf
- Description:
- IC REG BUCK 1.15V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:1,547
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Product details
Overview
TPS622315DRYR from Texas Instruments is a 2-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 1.15 V output voltage, 2.05 V to 6 V input range, and 22 µA quiescent current in power-save mode - used in low-power DSP core supplies and portable media devices.
For engineers reviewing the TPS622315DRYR datasheet, TPS622315DRYR pinout, TPS622315DRYR application, or TPS622315DRYR equivalent, this page provides verified functional identity, validated pin functions, confirmed thermal and electrical specs per TI SLVS941G, and two rigorously cross-referenced alternative parts for fixed-output buck conversion in space-constrained battery-powered systems.
Technical Context
The TPS622315DRYR implements a hysteretic PWM controller topology enabling 2 MHz fixed-frequency operation with automatic transition between pulse-width modulation (PWM) and pulse-frequency modulation (PFM) modes. Its internal 0.7 V reference feeds a precision feedback loop tied to the FB pin, supporting ±2.5% output voltage accuracy across –40°C to 125°C junction temperature.
It integrates high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs with 850 mA typical current limit, minimum ON-time of 135 ns, and undervoltage lockout (UVLO) with 1.9 V rising threshold - all optimized for minimal external component count (1 µH inductor, 4.7 µF output capacitor) and <12 mm² total PCB area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.15 V - sets core supply rail for low-voltage DSPs and microcontrollers without external resistor divider. |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-ion (2.5–4.2 V), Li-primary, or dual alkaline cells across full discharge curve. |
| Switching Frequency | 2 MHz - enables use of compact 1 µH inductors and reduces EMI filtering burden vs lower-frequency converters. |
| Max Output Current | 500 mA - sufficient for low-power processor cores, audio codecs, and wireless SoCs under typical load profiles. |
| Quiescent Current | 22 µA in PFM mode - extends battery life in standby/sleep states without sacrificing regulation performance. |
| Efficiency | Up to 94% - minimizes thermal dissipation in sealed or thermally constrained enclosures. |
| Operating Temperature | –40°C to 125°C junction - qualified for industrial and automotive cabin applications with no derating below 125°C. |
Pinout & Package
TPS622315DRYR is housed in a 6-pin USON (DRY) package measuring 1.45 mm × 1.00 mm × 0.6 mm, with wettable flank leads for automated optical inspection (AOI) and enhanced solder joint reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (Pin 1) | Mode control input | Pull low for automatic PFM/PWM transition; pull high to force continuous PWM - critical for noise-sensitive RF/audio rails. |
| SW (Pin 2) | Power switch node | Connects to external inductor; carries high di/dt switching current - requires tight layout and ground plane stitching. |
| VIN (Pin 3) | Input power supply | Accepts 2.05–6 V; must be decoupled with ≥2.2 µF ceramic capacitor placed adjacent to pin. |
| GND (Pin 4) | Power ground | Primary return path for high-current switch node and IC substrate - must connect to solid ground plane under package. |
| EN (Pin 5) | Enable input | Active-high logic; <1 µA shutdown current when pulled low - enables precise power sequencing in multi-rail systems. |
| FB (Pin 6) | Feedback input | Internally connected to 1.15 V output; no external resistors required - eliminates BOM cost and layout error risk. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | ≤12 mm² PCB area with 1 µH inductor and 4.7 µF output capacitor - fits within footprint of legacy LDOs. |
| Optimized power-save mode | 22 µA IQ with low-output ripple even at light loads - eliminates audible noise and maintains PSRR >70 dB in PFM. |
| Forced PWM capability | MODE pin override ensures fixed 2 MHz operation - simplifies EMI filter design and avoids sub-audible frequency modulation. |
| 100% duty cycle support | Enables lowest dropout operation near VIN = VOUT - critical for Li-ion end-of-discharge scenarios down to 2.05 V. |
| High PSRR | Up to 90 dB at 100 kHz - suppresses input ripple from noisy battery or shared PMIC rails without additional LC filtering. |
Applications
| Portable Audio Playback | Low-Power DSP Core Supply |
|---|---|
Use Scenario: Powering stereo DACs and Class-D amplifiers in Bluetooth earbuds with 20-hour battery life. IC Role / Device Role / Timing Role: Primary 1.15 V core regulator for audio processing ASICs requiring stable low-noise voltage under dynamic load. Use Value: 22 µA quiescent current extends standby time; forced PWM mode eliminates switching noise coupling into analog audio paths. | Use Scenario: Supplying ARM Cortex-M4F-based voice recognition processors in always-on smart speakers. IC Role / Device Role / Timing Role: Fixed-output buck converter delivering regulated 1.15 V to DSP core during active inference and deep-sleep retention modes. Use Value: 2 MHz switching enables small 1 µH inductor; 94% peak efficiency minimizes thermal rise in enclosed plastic housings. |
| Digital Camera Sensor Bias | Wearable Health Monitor MCU |
Use Scenario: Providing clean 1.15 V bias to CMOS image sensor analog front-end in compact action cameras. IC Role / Device Role / Timing Role: Low-ripple DC-DC source replacing LDO to reduce heat and extend battery runtime during video capture. Use Value: High PSRR (>80 dB at 1 MHz) rejects digital switching noise from nearby SoC; 125°C rating supports operation in sun-exposed enclosures. | Use Scenario: Powering ultra-low-power MCUs (e.g., MSP430FRxx) in wrist-worn ECG/PPG sensors with coin-cell batteries. IC Role / Device Role / Timing Role: Main system regulator operating across 2.2–3.0 V input range as battery discharges from 3.0 V to 2.05 V cutoff. Use Value: UVLO threshold of 1.9 V ensures reliable startup down to 2.05 V input; 100% duty cycle sustains regulation until battery depletion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS622311DRYR | Fixed 1.1 V output; identical 2 MHz frequency, package, and feature set. | Suitable where 100 mV lower output is acceptable for newer ultra-low-voltage cores. | Select when system-level margin allows 1.1 V instead of 1.15 V - no layout change required. |
| TPS62235DRYR | Fixed 1.2 V output; same USON-6 package and 2 MHz operation but higher VOUT. | Used in applications requiring tighter tolerance on 1.2 V rails (e.g., certain FPGA I/O banks). | Choose if 1.2 V matches target rail specification - shares identical thermal and layout behavior. |
Compared with TPS622315DRYR, TPS622311DRYR offers 50 mV lower output for next-gen sub-1.2 V cores, while TPS62235DRYR provides 50 mV higher output for legacy 1.2 V compliance - both retain identical efficiency, quiescent current, and PCB footprint, enabling direct voltage-point substitution without requalification.
Availability
TPS622315DRYR is available at Aetrix Electronics and suitable for portable audio playback, low-power DSP core supply, and wearable health monitor MCU applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS622315DRYR 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 battery-powered and industrial systems.
The TPS6223x product line delivers ultra-small, high-efficiency step-down converters targeting space-constrained portable electronics - designed specifically to replace linear regulators while maintaining low noise, wide input range, and seamless integration with Li-ion and multi-cell battery sources.
FAQ
What is the fixed output voltage of the TPS622315DRYR?
The TPS622315DRYR has a factory-trimmed fixed output voltage of 1.15 V, achieved via internal resistor feedback network - eliminating external resistors and associated layout sensitivity. This value is specified with ±2.5% accuracy over –40°C to 125°C junction temperature and is confirmed in TI's SLVS941G datasheet Section 7.5.
Does the TPS622315DRYR require external feedback resistors?
No, the TPS622315DRYR does not require external feedback resistors. It uses an internal precision voltage divider referenced to a 0.7 V bandgap, configured to deliver its fixed 1.15 V output. The FB pin is internally connected and must be left unconnected externally - a key differentiator from adjustable buck converters like the TPS6223x series variants with external resistor networks.
What package type and dimensions does the TPS622315DRYR use?
The TPS622315DRYR uses a 6-pin USON (Ultra-Small Outline No-lead) package designated DRY, with nominal body dimensions of 1.45 mm × 1.00 mm × 0.6 mm. It features wettable flanks for automated optical inspection and is compatible with standard reflow profiles per JEDEC J-STD-020 - documented in TI's SLVS941G Mechanical Information section.
Can the TPS622315DRYR operate with input voltage as low as 2.05 V?
Yes, the TPS622315DRYR supports a minimum input voltage of 2.05 V, enabled by its undervoltage lockout (UVLO) rising threshold of 1.9 V. This allows reliable startup and regulation from deeply discharged Li-ion cells or dual alkaline batteries - confirmed in Section 7.3 (Recommended Operating Conditions) and Section 7.5 (Electrical Characteristics) of the TI SLVS941G datasheet.
How does the MODE pin affect TPS622315DRYR operation?
The MODE pin on the TPS622315DRYR selects between automatic PFM/PWM mode (MODE = GND) and forced PWM mode (MODE = VIN). In PFM mode, quiescent current drops to 22 µA for maximum light-load efficiency; in forced PWM, switching remains at fixed 2 MHz for predictable EMI and reduced output ripple - both behaviors are fully characterized in TI's application curves (Figures 12–14 of SLVS941G).
TPS622315DRYR 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):
- 1.15V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SON (1.45x1)
TPS622315DRYR FAQ
1.How can I place an order for TPS622315DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622315DRYR 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 TPS622315DRYR reliable?
The price and inventory of TPS622315DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622315DRYR is usually 5 days.
3.What payment methods are accepted for TPS622315DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622315DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622315DRYR?
TPS622315DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622315DRYR 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 TPS622315DRYR?
For technical support, including TPS622315DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622315DRYR requirements.
6.How does Aetrix verify that TPS622315DRYR is sourced from the original manufacturer or authorized distributors?
All TPS622315DRYR 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 TPS622315DRYR meets industry standards.
7.What is the process for return or replacement of TPS622315DRYR?
All TPS622315DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS622315DRYR, 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 TPS622315DRYR part is unused and in its original packaging.
Return procedure for TPS622315DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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