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Texas Instruments TPS622316DRYT
- Part No.:
- TPS622316DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622316DRYT.pdf
- Description:
- IC REG BUCK 2.7V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:705
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Product details
Overview
TPS622316DRYT from Texas Instruments is a 2.7-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 support for input voltages from 2.05 V to 6 V - ideal for Li-ion or dual-alkaline powered portable audio and low-power wireless systems.
For engineers reviewing the TPS622316DRYT datasheet, TPS622316DRYT pinout, TPS622316DRYT application, or TPS622316DRYT equivalent, key selection criteria include its ultra-small 12-mm² solution size, forced-PWM capability via MODE pin, 0.7-V internal reference, ±2.5% output voltage accuracy over –40°C to 125°C, and compatibility with 2.2-μH inductors and 4.7-μF output capacitors.
Technical Context
The TPS622316DRYT implements a hysteretic PWM controller topology enabling 3-MHz switching with excellent AC load regulation and low output ripple across full load range. 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 operation.
It features undervoltage lockout (UVLO) with 1.9-V rising threshold, thermal shutdown at 150°C, soft-start with ~100-μs ramp time, and MODE pin control for seamless transition between PFM (22 μA IQ) and PWM (3 mA IQ) modes - all optimized for battery-sensitive applications requiring stable rail generation under dynamic load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.7 V ±2.5% over –40°C to 125°C junction temperature - ensures stable core supply for low-voltage DSPs without external feedback resistors. |
| Switching Frequency | 3 MHz - enables use of tiny 2.2-μH inductors and reduces EMI filtering burden in space-constrained portable designs. |
| Max Output Current | 500 mA - supports moderate-power subsystems like Bluetooth SoCs or camera ISPs without thermal derating in DRY package. |
| Quiescent Current | 22 μA in power-save mode - extends battery life in always-on sensor nodes or standby audio codecs. |
| Input Voltage Range | 2.05 V to 6 V - compatible with single Li-ion (2.7–4.2 V), Li-primary, or two alkaline cells (2.0–3.2 V) without input staging. |
| Package | USON-6 (1.0 mm × 1.5 mm × 0.6 mm) - achieves <12 mm² PCB footprint and ≤0.6-mm height, critical for ultra-thin wearables. |
| PSRR | Up to 90 dB - suppresses noise from noisy battery rails or shared PMIC outputs, suitable for RF and audio analog sections. |
Pinout & Package
TPS622316DRYT uses a 6-pin USON (DRY) package with wettable flanks, measuring 1.0 mm × 1.5 mm × 0.6 mm nominal body size and optimized for automated optical inspection (AOI) and thermal performance on 2-layer PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.05–6 V; connects to input capacitor (2.2 μF) and must be decoupled close to pin to minimize switching noise injection. |
| GND | Power ground | Primary return path for high-frequency switch current; requires low-inductance connection to thermal pad and input/output caps. |
| EN | Enable control | Active-high logic input; must be terminated (pull-up or pull-down); drives device into <1-μA shutdown when low. |
| MODE | Operating mode select | Pull low for automatic PFM/PWM transition; pull high for forced PWM - eliminates audible noise and enables predictable EMI filtering. |
| SW | Switch node | Connects to inductor; carries high di/dt square wave; requires short, wide trace and tight loop with GND and VIN caps to reduce EMI. |
| FB | Feedback input | Internally connected to 2.7-V divider; not externally accessible - simplifies layout and eliminates resistor tolerance errors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | 12 mm² total area with 2.2-μH inductor and 4.7-μF capacitor - fits within footprint of standard 0805 passives, reducing BOM count. |
| High PSRR (up to 90 dB) | Rejects ripple from upstream converters or battery impedance - eliminates need for post-regulation LDOs in noise-sensitive analog rails. |
| 100% duty cycle capability | Enables lowest dropout operation near VIN = VOUT - sustains regulated 2.7 V output down to 2.75 V input, maximizing battery runtime. |
| Thermal shutdown with hysteresis | Triggers at 150°C with 20°C hysteresis - prevents thermal runaway during sustained 500-mA loads in compact enclosures without airflow. |
| Pre-biased start-up support | Allows safe startup into existing output voltage - essential for hot-swap or multi-rail sequencing where VOUT may be pre-charged. |
Applications
| Portable Audio Codec Supply | Bluetooth LE Sensor Node Core Rail |
|---|---|
Use Scenario: Powering stereo audio codec ICs (e.g., TLV320AIC3104) in wireless earbuds with Li-ion battery input. IC Role / Device Role / Timing Role: Primary 2.7-V analog and digital core supply; regulates rail during dynamic headphone driver transients. Use Value: 90-dB PSRR suppresses battery ripple and digital switching noise, preserving SNR >95 dB; 22-μA IQ extends playback time by >15% vs. LDO. |
Use Scenario: Supplying nRF52832 BLE SoC core voltage in coin-cell–powered environmental sensors. IC Role / Device Role / Timing Role: Efficient buck regulator replacing linear regulator for active transmit/receive cycles and deep-sleep states. Use Value: 3-MHz switching avoids audible noise; 100% duty cycle maintains 2.7 V down to 2.75 V input, extracting final 10% battery capacity. |
| Digital Camera ISP Core Supply | Low-Power DSP Subsystem Rail |
Use Scenario: Delivering clean 2.7-V supply to image signal processor (e.g., OV5640) in compact action cameras. IC Role / Device Role / Timing Role: High-transient-response buck converter handling burst-mode sensor readout and auto-focus motor spikes. Use Value: 3-MHz frequency and hysteretic control enable <10-μs load transient recovery; 12-mm² solution fits behind small optics module. |
Use Scenario: Powering C55x or C674x DSP cores in portable medical monitors with dual-alkaline battery input. IC Role / Device Role / Timing Role: Primary core voltage regulator supporting variable clock rates and sleep/wake transitions. Use Value: Input range down to 2.05 V enables operation across full alkaline discharge curve (1.5 V/cell); forced PWM ensures deterministic timing jitter. |
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 and marking (GW vs RJ). | Suitable for 1.8-V FPGA I/O or microcontroller core rails - not interchangeable without board redesign due to different output voltage. | Select TPS62231DRYT only when 1.8-V regulation is required; verify feedback network absence matches fixed-output architecture. |
| TPS62237DRYT | Fixed 3.3-V output; same 3-MHz frequency, 500-mA rating, and USON-6 package but higher VOUT and OS marking. | Targets 3.3-V peripherals (USB PHY, SDIO, display drivers); incompatible with 2.7-V logic without level-shifting. | Choose TPS62237DRYT for 3.3-V systems needing identical size/efficiency; confirm system-level voltage margin allows 3.3-V rail. |
Compared with TPS622316DRYT, TPS62231DRYT provides lower output voltage for 1.8-V logic domains, while TPS62237DRYT supports higher-voltage peripherals - both share identical thermal, layout, and control characteristics, enabling family-based design reuse with only output voltage change.
Availability
TPS622316DRYT is available at Aetrix Electronics and suitable for portable audio, low-power wireless sensor nodes, and digital camera ISP core supplies requiring stable component supply, consistent parametric performance, and long-term production availability.
Supply support for TPS622316DRYT 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 leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-efficiency DC-DC conversion for battery-powered systems.
The TPS6223x product line was designed specifically for ultra-compact, high-frequency step-down regulation in portable electronics - prioritizing minimal solution size, low IQ, and robust transient response for Li-ion and multi-cell alkaline applications.
FAQ
What is the output voltage of the TPS622316DRYT?
The TPS622316DRYT delivers a fixed 2.7-V output with ±2.5% accuracy over –40°C to 125°C junction temperature. It uses an internal resistor divider tied to a 0.7-V reference, eliminating external feedback components and ensuring consistent regulation without resistor tolerance drift or layout sensitivity.
Does the TPS622316DRYT require external feedback resistors?
No, the TPS622316DRYT does not require external feedback resistors. Its 2.7-V output is set internally using a precision resistor network referenced to a 0.7-V bandgap - simplifying layout, reducing component count, and improving long-term stability compared to adjustable buck converters.
Can the TPS622316DRYT operate from a single alkaline cell?
No, the TPS622316DRYT cannot operate from a single alkaline cell (nominal 1.5 V), as its minimum input voltage is 2.05 V. It supports two alkaline cells (2.0–3.2 V) or single Li-ion (2.7–4.2 V), making it suitable for dual-cell remote controls or wearable devices with AA/AAA batteries.
What is the purpose of the MODE pin on the TPS622316DRYT?
The MODE pin on the TPS622316DRYT selects operating mode: pulled low for automatic PFM/PWM transition (22 μA IQ), or pulled high for forced PWM mode (3 mA IQ). Forced PWM eliminates pulse skipping, enabling predictable EMI filtering and deterministic timing - critical for RF and audio applications.
Is the TPS622316DRYT pin-compatible with other TPS6223x variants?
Yes, all TPS6223x devices including TPS622316DRYT use the identical USON-6 (DRY) package and pinout - VIN, GND, EN, MODE, SW, FB - enabling drop-in replacement across the family when output voltage and marking compatibility are verified per device-specific datasheet tables.
TPS622316DRYT 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):
- 2.7V
- 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)
TPS622316DRYT FAQ
1.How can I place an order for TPS622316DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622316DRYT 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 TPS622316DRYT reliable?
The price and inventory of TPS622316DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622316DRYT is usually 5 days.
3.What payment methods are accepted for TPS622316DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622316DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622316DRYT?
TPS622316DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622316DRYT 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 TPS622316DRYT?
For technical support, including TPS622316DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622316DRYT requirements.
6.How does Aetrix verify that TPS622316DRYT is sourced from the original manufacturer or authorized distributors?
All TPS622316DRYT 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 TPS622316DRYT meets industry standards.
7.What is the process for return or replacement of TPS622316DRYT?
All TPS622316DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS622316DRYT, 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 TPS622316DRYT part is unused and in its original packaging.
Return procedure for TPS622316DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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