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Texas Instruments TPS62232DRYR
- Part No.:
- TPS62232DRYR
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62232DRYR.pdf
- Description:
- IC REG BUCK 1.2V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:12,575
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Product details
Overview
TPS62232DRYR 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 1.2 V output voltage, 2.05 V to 6 V input range, and 22 μA quiescent current in power-save mode - optimized for Li-ion, dual-alkaline, or single-Li-primary powered portable audio and low-power wireless systems.
For engineers reviewing the TPS62232DRYR datasheet, TPS62232DRYR pinout, TPS62232DRYR application, or TPS62232DRYR equivalent, key selection criteria include its 1.2 V fixed output, 3 MHz switching frequency, ultra-small 12 mm² solution size, forced-PWM capability via MODE pin, and thermal shutdown at 150°C - all critical for space-constrained, battery-sensitive designs.
Technical Context
The TPS62232DRYR implements a hysteretic PWM controller topology enabling stable 3 MHz operation with excellent AC load regulation and low output ripple across 0–500 mA loads. It supports automatic transition between pulse-frequency modulation (PFM) at light loads and quasi-fixed-frequency PWM at medium/heavy loads.
Its internal 0.7 V reference feeds a precision feedback loop; the device features integrated high-side (600–850 mΩ) and low-side (350–480 mΩ) MOSFETs, 135 ns minimum on-time, and undervoltage lockout with 1.9 V rising threshold - ensuring robust startup and dropout performance down to VIN = VOUT + 1 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±2.5% over –40°C to 125°C - enables direct core supply for low-voltage DSPs and microcontrollers without external resistor divider. |
| Switching Frequency | 3 MHz nominal - allows use of 2.2 μH inductor and 4.7 μF output capacitor, minimizing solution footprint to <12 mm². |
| Max Output Current | 500 mA continuous - supported by internal 850 mA typical switch current limit and thermal shutdown at 150°C. |
| Quiescent Current | 22 μA in PFM mode - extends battery life in always-on portable media and sensor nodes. |
| Input Voltage Range | 2.05 V to 6 V - supports single Li-primary, two alkaline, or wide-range Li-ion batteries including depleted states. |
| Efficiency | Up to 94% - achieved via synchronous rectification and low RDS(on) MOSFETs, reducing heat generation in sealed enclosures. |
| Shutdown Current | <1 μA - ensures zero-load battery drain during system sleep or storage modes. |
Pinout & Package
TPS62232DRYR is housed in a 1 mm × 1.5 mm × 0.6 mm, 6-pin USON (DRY) package with wettable flanks for automated optical inspection. The package is lead-free, RoHS-compliant, and rated for –40°C to 125°C junction operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (Pin 1) | Mode control input | Pull low for auto PFM/PWM transition; pull high for forced PWM - eliminates audible noise and enables predictable EMI filtering. |
| SW (Pin 2) | Power switch node | Connects to external 2.2 μH inductor; carries high di/dt switching current - requires short, low-inductance PCB trace. |
| VIN (Pin 3) | Main power input | Accepts 2.05–6 V; must be decoupled with 2.2 μF ceramic capacitor placed adjacent to pin for stability and PSRR. |
| GND (Pin 4) | Power ground | Common return for VIN, SW, FB, EN, and MODE; requires low-impedance thermal pad connection to PCB ground plane. |
| EN (Pin 5) | Enable input | Active-high logic; must be terminated (no internal pull-up); drives shutdown state with <1 μA current when low. |
| FB (Pin 6) | Feedback input | Internally connected to 1.2 V output divider; not user-accessible - simplifies layout and eliminates external resistor errors. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | 12 mm² total PCB area with only three external components (inductor, input cap, output cap) - ideal for hearing aids and wearables. |
| High PSRR (up to 90 dB) | Rejects input ripple and noise above 10 kHz - enables clean power delivery to RF transceivers and audio codecs without LDO post-regulation. |
| Optimized power-save mode | Maintains <10 mVPP output ripple at 10 mA load using 2.2 μH/4.7 μF - avoids audible coil whine in portable media players. |
| 100% duty cycle capability | Supports dropout operation down to VIN = VOUT - extends usable battery life in deep-discharge scenarios (e.g., 1.2 V out from 1.3 V cell). |
| Thermal shutdown with hysteresis | Shuts down at 150°C junction temperature and resumes at 130°C - prevents thermal runaway during sustained 500 mA loads in confined spaces. |
Applications
| Portable Audio Playback | Low-Power Wireless Sensor Node |
|---|---|
|
Use Scenario: Powering DAC, headphone amplifier, and codec in Bluetooth earbuds with 1.2 V core rail. IC Role / Device Role / Timing Role: Primary DC-DC regulator supplying stable 1.2 V at up to 300 mA with sub-10 mV ripple to prevent audio distortion. Use Value: Replaces inefficient LDOs, extending single-charge battery life by >40% while maintaining SNR >95 dB. |
Use Scenario: Supplying MCU, BLE radio, and analog sensor interface in coin-cell-powered environmental monitor. IC Role / Device Role / Timing Role: Efficient 1.2 V core supply enabling 2 μA sleep current and fast wake-up from shutdown via EN pin. Use Value: Achieves 5-year coin-cell lifetime by combining 22 μA quiescent current with <1 μA shutdown draw. |
| Digital Camera Image Sensor Core | Wearable Health Monitor SoC |
|
Use Scenario: Delivering clean 1.2 V to CMOS image sensor digital core during burst capture sequences. IC Role / Device Role / Timing Role: High-PSRR buck converter rejecting switching noise from adjacent RF sections during active imaging. Use Value: Eliminates horizontal banding artifacts by maintaining >85 dB PSRR at 3 MHz switching frequency. |
Use Scenario: Powering ultra-low-power ARM Cortex-M0+ MCU and bio-signal ADC in wrist-worn ECG patch. IC Role / Device Role / Timing Role: Compact, thermally robust 1.2 V supply supporting continuous 24/7 operation under skin-contact thermal constraints. Use Value: Enables full-system height ≤0.6 mm via 1 mm × 1.5 mm package and 12 mm² layout - critical for conformal wearables. |
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; identical 3 MHz frequency, package, and feature set. | Targets higher-voltage DSP cores or I/O rails where 1.8 V is required instead of 1.2 V. | Select when system requires 1.8 V rail with same size, efficiency, and thermal profile. |
| TPS62235DRYR | Fixed 1.2 V output but 2 MHz switching frequency; otherwise identical pinout and specs. | Better EMI filtering margin due to lower fundamental frequency; slightly larger inductor (2.2 μH still valid) may be used. | Choose for noise-sensitive applications where 2 MHz fundamental eases compliance with CISPR-22 Class B limits. |
Compared with TPS62232DRYR, TPS62231DRYR provides higher output voltage for legacy 1.8 V logic, while TPS62235DRYR trades 3 MHz speed for improved EMI headroom at 2 MHz - both share identical USON-6 packaging and thermal behavior but differ in output voltage or frequency tuning.
Availability
TPS62232DRYR is available at Aetrix Electronics and suitable for portable audio playback, low-power wireless sensor nodes, and wearable health monitors requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS62232DRYR 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 consumer electronics - emphasizing minimal solution size, low quiescent current, and robust light-load performance.
FAQ
What is the fixed output voltage of the TPS62232DRYR?
The TPS62232DRYR has a factory-trimmed fixed output voltage of 1.2 V, with accuracy of ±2% at 25°C and ±2.5% over the full –40°C to 125°C junction temperature range. This eliminates the need for external feedback resistors and ensures consistent regulation across production units without calibration.
Does the TPS62232DRYR require external feedback resistors?
No, the TPS62232DRYR does not require external feedback resistors. Its 1.2 V output is internally set via a precision resistor divider connected to the FB pin, which is not accessible to the user - simplifying design, reducing BOM count, and improving long-term output voltage stability.
Can the TPS62232DRYR operate from a single alkaline cell?
Yes, the TPS62232DRYR supports input voltages as low as 2.05 V, enabling reliable operation from a single fresh alkaline cell (1.5 V nominal) or two partially discharged alkaline cells (down to ~1.025 V per cell). Its 100% duty cycle capability further extends usable runtime near end-of-life.
What is the purpose of the MODE pin on the TPS62232DRYR?
The MODE pin on the TPS62232DRYR selects between automatic PFM/PWM operation (MODE = GND) and forced PWM mode (MODE = VIN). Forced PWM eliminates pulse skipping, enabling predictable EMI filtering and eliminating audible noise - critical for audio and RF-sensitive applications.
How does the TPS62232DRYR handle thermal overload?
The TPS62232DRYR integrates thermal shutdown that disables both MOSFETs when junction temperature exceeds 150°C (typical), then resumes operation once temperature falls below 130°C due to built-in 20°C hysteresis - preventing damage during sustained high-current operation in compact enclosures.
TPS62232DRYR 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):
- 1.2V
- 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)
TPS62232DRYR FAQ
1.How can I place an order for TPS62232DRYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62232DRYR 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 TPS62232DRYR reliable?
The price and inventory of TPS62232DRYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62232DRYR is usually 5 days.
3.What payment methods are accepted for TPS62232DRYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62232DRYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62232DRYR?
TPS62232DRYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62232DRYR 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 TPS62232DRYR?
For technical support, including TPS62232DRYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62232DRYR requirements.
6.How does Aetrix verify that TPS62232DRYR is sourced from the original manufacturer or authorized distributors?
All TPS62232DRYR 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 TPS62232DRYR meets industry standards.
7.What is the process for return or replacement of TPS62232DRYR?
All TPS62232DRYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62232DRYR, 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 TPS62232DRYR part is unused and in its original packaging.
Return procedure for TPS62232DRYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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