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Texas Instruments TPS622314DRYT
- Part No.:
- TPS622314DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS622314DRYT.pdf
- Description:
- IC REG BUCK 1.5V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:690
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Product details
Overview
TPS622314DRYT 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 1.5 V output voltage, 2.05–6 V input range, and 22 μA quiescent current in power-save mode. It serves as an ultra-compact, high-efficiency replacement for LDOs in space-constrained portable audio and low-power wireless systems.
For engineers reviewing the TPS622314DRYT datasheet, TPS622314DRYT pinout, TPS622314DRYT application, or TPS622314DRYT equivalent, key selection criteria include its 1.5 V fixed output, 3 MHz switching frequency, 6-pin USON package footprint, and support for ≤12 mm² total solution area with 1 μH inductor and 4.7 μF output capacitor.
Technical Context
The TPS622314DRYT employs a hysteretic PWM controller architecture enabling 3 MHz operation, excellent AC load regulation, and low-output-voltage ripple across full load range. Its internal 0.7 V reference and fixed resistor divider set the 1.5 V output without external feedback components.
It supports dual operating modes: automatic PFM/PWM transition (MODE = GND) for peak light-load efficiency, and forced PWM (MODE = VIN) for consistent switching frequency and reduced noise-critical for RF and audio supply rails. Thermal shutdown activates at 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V - eliminates need for external FB resistors; ensures stable core supply for low-voltage DSPs and sensors. |
| Switching Frequency | 3 MHz - enables use of tiny 1 μH inductors and compact 4.7 μF ceramic output capacitors; reduces solution footprint to <12 mm². |
| Max Output Current | 500 mA - supports moderate-power digital loads such as Bluetooth SoCs and camera ISPs without thermal derating in DRY package. |
| 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; UVLO threshold at 1.9 V (rising). |
| Quiescent Current | 22 μA (PFM mode) - extends battery life in always-on sensor nodes and standby audio subsystems. |
| Package | USON-6 (1.0 mm × 1.5 mm × 0.6 mm) - ultra-small footprint with exposed thermal pad; RθJA = 294.5°C/W. |
| PSRR | Up to 90 dB - suppresses input ripple and noise; suitable for noise-sensitive analog/RF supply domains. |
Pinout & Package
TPS622314DRYT uses a 6-pin USON (DRY) package with 0.5 mm pitch, 1.0 mm × 1.5 mm body, and wettable flank terminals for automated optical inspection. The exposed thermal pad (EP) is connected to GND internally and must be soldered to PCB ground plane for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (Pin 1) | Mode control input | Pull low for auto PFM/PWM; pull high for forced PWM - enables deterministic noise filtering in sensitive RF sections. |
| SW (Pin 2) | Power switch node | Connects to inductor; carries high-frequency switched current - requires short, low-inductance layout to minimize EMI. |
| VIN (Pin 3) | Main power input | Accepts 2.05–6 V; decoupled with 2.2 μF ceramic capacitor close to pin for stability and transient response. |
| GND (Pin 4) | Power ground | Return path for high-side/low-side MOSFETs and IC logic; tied to EP for thermal conduction and noise reduction. |
| EN (Pin 5) | Enable input | Active-high logic; <1 μA shutdown current when pulled low - used for power sequencing or system-level sleep control. |
| FB (Pin 6) | Feedback reference | Internally connected to 1.5 V output divider; not accessible - simplifies layout and eliminates external resistor tolerance errors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | ≤12 mm² PCB area using only 1 μH inductor + 4.7 μF output capacitor - ideal for hearing aids and wearable sensors. |
| High PSRR (90 dB) | Rejects input ripple and coupled noise up to 100 kHz - enables clean power for ADCs, PLLs, and RF transceivers. |
| 100% duty cycle capability | Maintains regulation down to VIN – VOUT ≈ 0 V - supports Li-ion battery discharge down to 1.5 V without dropout failure. |
| Thermal shutdown protection | Triggers at 150°C junction temperature with 20°C hysteresis - prevents damage during sustained overload or poor heatsinking. |
| Soft-start timing | 100 μs typical ramp to 1.5 V - limits inrush current and avoids input rail collapse on weak sources like coin cells. |
Applications
| Portable Audio Playback | Low-Power Wireless Sensor Node |
|---|---|
Use Scenario: Powering DAC, headphone amplifier, and codec in Bluetooth earbuds with single Li-ion cell. IC Role / Device Role / Timing Role: Primary 1.5 V supply rail for analog audio circuitry and low-voltage digital logic. Use Value: 90 dB PSRR minimizes audible switching noise; 22 μA quiescent current extends playback time between charges. | Use Scenario: Supplying sub-GHz RF transceiver (e.g., CC1310) and microcontroller in battery-operated environmental sensor. IC Role / Device Role / Timing Role: Main system regulator delivering stable 1.5 V to RF front-end and MCU core. Use Value: 3 MHz switching allows small passive components; forced PWM mode eliminates frequency modulation in receive band. |
| Digital Camera Image Signal Processor | Wearable Health Monitor ASIC |
Use Scenario: Providing regulated 1.5 V to ISP core in compact action camera with limited PCB real estate. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter replacing larger LDOs to reduce heat and extend runtime. Use Value: 12 mm² solution size fits tight camera module layouts; 500 mA output supports burst-mode image processing. | Use Scenario: Powering ultra-low-power ECG/PPG analog front-end and ARM Cortex-M0+ in wrist-worn device. IC Role / Device Role / Timing Role: Always-on supply rail with minimal quiescent draw during sleep cycles. Use Value: 22 μA PFM quiescent current maximizes battery life over multi-week wear periods; USON-6 footprint matches miniaturized flex PCB constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS622313DRYT | Fixed 1.3 V output; identical package, pinout, and electrical specs otherwise. | Suitable where lower core voltage is required for newer ultra-low-power MCUs. | Select when target SoC specifies 1.3 V nominal supply and compatibility with existing 1.5 V layout is not required. |
| TPS622315DRYT | Fixed 1.15 V output; same 3 MHz frequency, USON-6 package, and feature set. | Used in advanced sensor hubs and AI edge accelerators needing sub-1.2 V logic rails. | Choose for next-generation designs requiring tighter voltage margins and higher efficiency at light loads. |
Compared with TPS622314DRYT, TPS622313DRYT and TPS622315DRYT share identical thermal, packaging, and dynamic performance but differ solely in fixed output voltage - making them drop-in replacements only when board-level feedback network is absent and voltage tolerance permits.
Availability
TPS622314DRYT is available at Aetrix Electronics and suitable for portable audio, low-power wireless sensor networks, and wearable health monitors requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS622314DRYT 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 where PCB area, height, and quiescent power are critical constraints.
FAQ
What is the fixed output voltage of the TPS622314DRYT?
The TPS622314DRYT has a factory-trimmed fixed output voltage of 1.5 V. This value is set by an internal resistor divider referenced to the 0.7 V bandgap, eliminating the need for external feedback components. Output voltage accuracy is ±2.5% over –40°C to 125°C junction temperature, ensuring reliable operation in portable and industrial environments where the TPS622314DRYT is deployed.
Does the TPS622314DRYT require external feedback resistors?
No, the TPS622314DRYT does not require external feedback resistors. It integrates a precision resistor divider that sets the output to 1.5 V, directly connecting the internal reference to the FB pin. This simplifies design, improves accuracy by removing external resistor tolerance effects, and reduces PCB area - a key advantage confirmed in the TPS622314DRYT datasheet Section 6 and Functional Block Diagram.
What package type and dimensions does the TPS622314DRYT use?
The TPS622314DRYT uses the DRY package: a 6-pin USON (Ultra-Small Outline No-lead) with 0.5 mm pitch, 1.0 mm × 1.5 mm body size, and 0.6 mm maximum height. Its wettable flank leads support automated optical inspection, and the exposed thermal pad (EP) must be soldered to PCB ground for thermal performance. This package enables the industry-leading ≤12 mm² solution size cited in the TPS622314DRYT datasheet.
Can the TPS622314DRYT operate with a 2.05 V input supply?
Yes, the TPS622314DRYT supports a minimum input voltage of 2.05 V, as specified in the Recommended Operating Conditions table. It remains functional down to the falling UVLO threshold (~1.8 V), enabling operation from partially discharged Li-primary or two alkaline cells. At 2.05 V input and 1.5 V output, the device maintains regulation via 100% duty cycle operation - a documented capability in the TPS622314DRYT datasheet Section 8.4.1 and Electrical Characteristics table.
How does the MODE pin affect TPS622314DRYT operation?
The MODE pin on the TPS622314DRYT selects between two operating modes: pulling MODE low enables automatic PFM/PWM transition for optimal light-load efficiency (22 μA IQ), while pulling MODE high forces continuous PWM mode for predictable switching frequency and reduced noise. This dual-mode capability is explicitly defined in Pin Functions (Section 6) and Device Functional Modes (Section 8.4.2) of the TPS622314DRYT datasheet.
TPS622314DRYT 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):
- 1.5V
- 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)
TPS622314DRYT FAQ
1.How can I place an order for TPS622314DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS622314DRYT 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 TPS622314DRYT reliable?
The price and inventory of TPS622314DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS622314DRYT is usually 5 days.
3.What payment methods are accepted for TPS622314DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS622314DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS622314DRYT?
TPS622314DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS622314DRYT 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 TPS622314DRYT?
For technical support, including TPS622314DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS622314DRYT requirements.
6.How does Aetrix verify that TPS622314DRYT is sourced from the original manufacturer or authorized distributors?
All TPS622314DRYT 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 TPS622314DRYT meets industry standards.
7.What is the process for return or replacement of TPS622314DRYT?
All TPS622314DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS622314DRYT, 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 TPS622314DRYT part is unused and in its original packaging.
Return procedure for TPS622314DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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