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Texas Instruments TPS62239DRYR
- Part No.:
- TPS62239DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62239DRYR.pdf
- Description:
- IC REG BUCK 1V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,115
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Product details
Overview
TPS62239DRYR 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 1.0 V output voltage, 2.05 V to 6 V input range, and 22 μA quiescent current in power-save mode - designed for space-constrained portable audio and low-power wireless applications.
For engineers reviewing the TPS62239DRYR datasheet, TPS62239DRYR pinout, TPS62239DRYR application, or TPS62239DRYR equivalent, key selection considerations include its 1.0 V fixed output, 3 MHz switching frequency, ultra-small 12 mm² solution size, forced-PWM capability via MODE pin, and compatibility with 1 μH inductors and 4.7 μF output capacitors.
Technical Context
The TPS62239DRYR implements a hysteretic PWM controller topology enabling stable 3 MHz operation without external compensation, supporting both automatic power-save (PFM/PWM hybrid) and forced-PWM modes. Its internal 0.7 V reference and fixed resistor divider set the 1.0 V output precisely.
It integrates high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs, features undervoltage lockout (1.8 V falling threshold), thermal shutdown at 150°C, and soft-start with ~100 μs ramp time - all optimized for Li-ion, Li-primary, or dual-alkaline battery systems requiring minimal BOM count and height-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0 V ±2.5% over –40°C to 125°C junction temperature - enables direct core supply for low-voltage DSPs and microcontrollers. |
| Switching Frequency | 3 MHz nominal - allows use of tiny 1 μH inductors and reduces output ripple without increasing filter size. |
| Input Voltage Range | 2.05 V to 6 V - supports single-cell Li-ion (2.7–4.2 V), Li-primary (up to 3.6 V), and two-alkaline (up to 3.2 V) batteries. |
| Max Output Current | 500 mA continuous - sufficient for RF transceivers, audio codecs, and low-power sensor hubs. |
| Quiescent Current | 22 μA in power-save mode - extends battery life in standby or intermittent-operation devices. |
| Package | USON-6 (1.45 mm × 1.00 mm × 0.6 mm) - enables <12 mm² total solution area and ≤0.6 mm profile for ultra-thin wearables. |
| PSRR | Up to 90 dB - suppresses input ripple and noise, making it suitable as LDO replacement in noise-sensitive analog/RF stages. |
Pinout & Package
TPS62239DRYR is housed in a 6-pin USON (Ultra Thin Small Outline No-lead) package measuring 1.45 mm × 1.00 mm × 0.6 mm, with wettable flanks and exposed thermal pad (not electrically connected). The package supports reflow soldering and provides excellent thermal performance (RθJA = 294.5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE | Mode control input | Pull low for automatic PFM/PWM transition; pull high for forced-PWM operation - eliminates audible noise and ensures predictable EMI behavior. |
| SW | Switch node | Connects to external inductor; carries high-frequency AC current - requires tight layout and short trace 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 - critical for stability and UVLO immunity. |
| FB | Feedback input | Internally tied to 1.0 V output; no external resistor network required - simplifies design and improves accuracy vs. adjustable regulators. |
| EN | Enable input | Active-high logic; pulls device into shutdown (<1 μA) when low - enables power sequencing and system-level sleep control. |
| GND | Power ground | Primary return path for input/output currents and IC substrate - must connect directly to thermal pad and low-impedance ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| 12 mm² minimum solution size | Enables integration into compact IoT sensors and hearing aids where board area is constrained to <15 mm². |
| 0.6 mm maximum solution height | Supports ultra-low-profile designs such as smart badges and flexible electronics requiring sub-1 mm stack-up. |
| 100% duty cycle capability | Allows dropout operation down to VOUT + 100 mV - maintains regulation during battery voltage sag near end-of-life. |
| High PSRR (up to 90 dB) | Reduces need for post-regulation LDOs in RF front-ends and ADC reference supplies, lowering total power loss. |
| Integrated soft-start (100 μs) | Prevents inrush current spikes that could brown-out shared battery rails in multi-rail portable systems. |
Applications
| Portable Audio Playback | Low-Power Wireless Sensor Node |
|---|---|
Use Scenario: Powering DAC, headphone amplifier, and MEMS microphone in Bluetooth earbuds with single Li-ion cell. IC Role / Device Role / Timing Role: Primary 1.0 V core supply for audio SoC; regulates against battery voltage decay and load transients. Use Value: 3 MHz switching avoids audible beat frequencies; 22 μA quiescent current extends playback time by >15% versus standard buck converters. | Use Scenario: Supplying sub-GHz transceiver (e.g., TI CC1310) and ultra-low-power MCU in battery-operated environmental monitor. IC Role / Device Role / Timing Role: Main 1.0 V rail for digital core and RF synthesizer; supports rapid wake-from-sleep transitions. Use Value: Forced-PWM mode ensures clean clock domain timing; 500 mA headroom accommodates RF transmit bursts without droop. |
| Digital Camera Image Sensor Bias | Wearable Health Monitor ASIC |
Use Scenario: Providing stable 1.0 V bias to CMOS image sensor pixel array and column ADC in compact action camera. IC Role / Device Role / Timing Role: Low-noise power source for analog signal chain; rejects switching noise via high PSRR and small LC filter. Use Value: 90 dB PSRR suppresses 3 MHz switching artifacts in image data; 12 mm² footprint fits within narrow camera module edge. | Use Scenario: Powering optical heart-rate sensor ASIC and BLE radio in wrist-worn fitness tracker with coin-cell or thin-film battery. IC Role / Device Role / Timing Role: Single-chip 1.0 V regulator replacing discrete LDO + buck combo; manages dynamic load from LED pulsing and radio TX. Use Value: 0.6 mm height enables conformal fit under curved display; power-save mode extends 2-week battery life to >3 weeks. |
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; otherwise identical pinout, package, and electrical specs. | Not suitable for 1.0 V core rails; appropriate only where higher voltage is acceptable. | Select when system requires 1.8 V I/O or logic supply instead of 1.0 V core voltage. |
| TPS622311DRYR | Fixed 1.1 V output; 2 MHz switching frequency (vs. 3 MHz); same package and feature set. | Slightly lower switching frequency increases inductor size requirement; marginally higher light-load ripple. | Choose if 1.1 V matches ASIC requirements and 2 MHz EMI profile better suits system layout constraints. |
Compared with TPS62239DRYR, TPS62231DRYR delivers higher output voltage but cannot meet 1.0 V core needs, while TPS622311DRYR offers closer voltage matching but trades 3 MHz speed for reduced EMI sensitivity - making TPS62239DRYR optimal for strict 1.0 V, space-limited, high-frequency applications.
Availability
TPS62239DRYR is available at Aetrix Electronics and suitable for portable audio, low-power wireless sensor nodes, and wearable health monitors requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for TPS62239DRYR 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 connectivity technologies, with decades of expertise in power management ICs for battery-powered systems.
The TPS6223x product line was engineered specifically for ultra-compact, high-efficiency DC-DC conversion in portable electronics - emphasizing minimal external components, sub-millimeter height, and seamless integration with Li-based and primary battery sources.
FAQ
What is the fixed output voltage of the TPS62239DRYR?
The TPS62239DRYR has a factory-trimmed fixed output voltage of 1.0 V with ±2.5% accuracy across –40°C to 125°C junction temperature. This eliminates the need for external feedback resistors and ensures precise core voltage delivery to low-voltage processors and ASICs without calibration overhead.
Does the TPS62239DRYR require external compensation components?
No, the TPS62239DRYR uses an internal hysteretic PWM control architecture that does not require external compensation. Its 3 MHz switching frequency and integrated loop design enable stable operation with only three external components: input capacitor, output capacitor, and inductor - reducing design complexity and BOM cost.
Can the TPS62239DRYR operate from a single alkaline battery?
Yes, the TPS62239DRYR supports input voltages as low as 2.05 V, enabling reliable operation from two fresh alkaline cells (starting at ~3.2 V) down to end-of-life (~2.1 V). Its 100% duty cycle capability further sustains regulation even when VIN approaches VOUT + 100 mV.
How does the MODE pin affect TPS62239DRYR operation?
When the MODE pin is pulled low (GND), the TPS62239DRYR automatically switches between PWM (medium/heavy load) and PFM (light load) modes to maximize efficiency. When pulled high (VIN), it forces continuous PWM operation - eliminating variable-frequency noise and enabling predictable EMI filtering for sensitive RF or audio circuits.
What is the thermal performance of the TPS62239DRYR in its USON package?
The TPS62239DRYR in the DRY (USON-6) package has a junction-to-ambient thermal resistance (RθJA) of 294.5°C/W. With proper PCB copper pour on the thermal pad and ground plane, it sustains 500 mA output continuously at ambient temperatures up to 65°C without derating - verified per JEDEC JESD51-7 standards.
TPS62239DRYR 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):
- 1V
- 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)
TPS62239DRYR FAQ
1.How can I place an order for TPS62239DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62239DRYR 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 TPS62239DRYR reliable?
The price and inventory of TPS62239DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62239DRYR is usually 5 days.
3.What payment methods are accepted for TPS62239DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62239DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62239DRYR?
TPS62239DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62239DRYR 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 TPS62239DRYR?
For technical support, including TPS62239DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62239DRYR requirements.
6.How does Aetrix verify that TPS62239DRYR is sourced from the original manufacturer or authorized distributors?
All TPS62239DRYR 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 TPS62239DRYR meets industry standards.
7.What is the process for return or replacement of TPS62239DRYR?
All TPS62239DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62239DRYR, 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 TPS62239DRYR part is unused and in its original packaging.
Return procedure for TPS62239DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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