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Texas Instruments TPS62232DRYT
- Part No.:
- TPS62232DRYT
- Manufacturer:
- Texas Instruments
- Package:
- 6-UFDFN
- Datasheet:
-
TPS62232DRYT.pdf
- Description:
- IC REG BUCK 1.2V 500MA 6SON
- Quantity:
- Payment:
- Shipping:
Inventory:45,353
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Product details
Overview
TPS62232DRYT 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, 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 power rails.
For engineers reviewing the TPS62232DRYT datasheet, TPS62232DRYT pinout, TPS62232DRYT application, or TPS62232DRYT equivalent, key selection criteria include its 1.2 V fixed output, 3 MHz switching frequency, 6-pin USON thermal performance (RθJA = 294.5°C/W), forced-PWM capability via MODE pin, and compatibility with 2.2 μH inductors and 4.7 μF output capacitors.
Technical Context
The TPS62232DRYT implements a hysteretic PWM controller architecture enabling 3 MHz operation, excellent AC load regulation, and low-output ripple across 0–500 mA loads. Its internal 0.7 V reference feeds a precision feedback loop tied to the FB pin, supporting fixed 1.2 V output via internal resistor divider.
It operates in automatic power-save mode (PFM/PWM transition) when MODE = GND, reducing IQ to 22 μA at light loads, or forced PWM mode (MODE = VIN) for noise-sensitive applications requiring consistent switching frequency and minimized spectral content.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V - eliminates external feedback resistors; supports low-voltage DSP/core supplies. |
| Switching Frequency | 3 MHz - enables use of tiny 2.2 μH inductors and compact 4.7 μF ceramic output capacitors. |
| Max Output Current | 500 mA - sufficient for low-power microcontrollers, audio codecs, and RF front-ends. |
| 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. |
| Quiescent Current | 22 μA (PFM mode) - extends battery life in always-on sensor or standby circuits. |
| Efficiency | Up to 94% - reduces thermal load in sealed or thermally constrained enclosures. |
| PSRR | Up to 90 dB - suppresses input supply noise critical for analog/RF signal chains. |
Pinout & Package
TPS62232DRYT is housed in a 1 mm × 1.5 mm × 0.6 mm, 6-pin USON (DRY) package with wettable flanks, optimized for automated optical inspection and thermal dissipation via bottom-side thermal pad connection to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MODE (Pin 1) | Mode control input | Pull low for auto PFM/PWM transition; pull high for forced PWM-enables deterministic EMI filtering. |
| SW (Pin 2) | Switch node | Connects to inductor; carries high di/dt switching current-requires tight layout and short trace routing. |
| VIN (Pin 3) | Input power supply | Accepts 2.05–6 V; requires local 2.2 μF ceramic decoupling placed near pin. |
| GND (Pin 4) | Power ground | Common return for VIN, SW, FB, EN, MODE; must be solidly connected to thermal pad and system ground. |
| EN (Pin 5) | Enable input | Active-high logic; floating not allowed-tie to VIN or controller GPIO for sequencing. |
| FB (Pin 6) | Feedback input | Internally connected to 1.2 V divider; no external resistors needed-simplifies layout and improves accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small solution size | ≤12 mm² PCB area with 1 μH inductor and 4.7 μF capacitor-fits beneath 1.0 mm height constraints. |
| High PSRR (90 dB) | Maintains clean 1.2 V rail despite noisy battery or shared input supply-critical for ADCs and RF ICs. |
| 100% duty cycle operation | Enables lowest dropout-supports 1.2 V output even with VIN as low as 1.25 V during brownout. |
| Thermal shutdown (150°C) | Protects against sustained overload or poor heatsinking-auto-recovery after junction cools by 20°C hysteresis. |
| Soft-start (100 μs) | Controls inrush current into output cap-prevents input voltage sag on weak sources like coin cells. |
Applications
| Low-Power DSP Core Supply | Portable Audio Codec Power |
|---|---|
Use Scenario: Powers ARM Cortex-M0+ or RISC-V MCU core running at 48 MHz with burst-mode processing. IC Role / Device Role / Timing Role: Primary 1.2 V core regulator delivering stable, low-noise supply synchronized to clock domain. Use Value: 94% efficiency and 22 μA quiescent current extend runtime in battery-powered edge nodes without compromising wake-up latency. | Use Scenario: Supplies stereo audio DAC/ADC in Bluetooth earbuds with real-time ANC processing. IC Role / Device Role / Timing Role: Clean 1.2 V analog supply isolating sensitive audio paths from digital switching noise. Use Value: 90 dB PSRR and forced-PWM mode suppress input ripple and enable predictable EMI filter design for FCC/CE compliance. |
| Digital Camera Image Sensor Bias | Wireless Sensor Node MCU Rail |
Use Scenario: Provides regulated 1.2 V bias to CMOS image sensor's analog front-end during preview mode. IC Role / Device Role / Timing Role: Low-ripple, fast-transient response supply ensuring pixel-level analog integrity during exposure ramp. Use Value: 3 MHz switching and optimized PFM reduce output voltage deviation <±5 mV under 100 mA step load-preserving SNR. | Use Scenario: Powers sub-GHz IoT transceiver (e.g., CC1310) in soil moisture sensor with 10-year battery life target. IC Role / Device Role / Timing Role: Always-on 1.2 V rail enabling ultra-low-power sleep states and rapid wake-up to transmit data. Use Value: 22 μA IQ in PFM mode and 1 μA shutdown current minimize average consumption-key for >10-year operation. |
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 otherwise. | Used where higher core voltage required (e.g., legacy 1.8 V I/O domains); not drop-in for 1.2 V systems. | Select only if target rail voltage matches 1.8 V; verify downstream logic compatibility. |
| TPS62235DRYT | Fixed 1.2 V output but rated for 2 MHz switching (vs. 3 MHz); same USON-6 package and pinout. | Better EMI predictability at lower frequency; slightly larger inductor (3.3 μH typical) required for equivalent ripple. | Prefer for noise-sensitive RF modules where 2 MHz fundamental falls outside critical bands. |
Compared with TPS62231DRYT (1.8 V) and TPS62235DRYT (2 MHz, 1.2 V), the TPS62232DRYT uniquely delivers 1.2 V at 3 MHz-enabling smallest passive component footprint while maintaining full compatibility with TI's TPS6223x family layout and thermal design rules.
Availability
TPS62232DRYT is available at Aetrix Electronics and suitable for portable audio, wireless sensor nodes, and low-power DSP core supplies requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS62232DRYT 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 over 50 years of innovation in high-reliability power conversion.
The TPS6223x product line was designed specifically for ultra-compact, high-efficiency battery-powered applications-emphasizing minimal solution size, low IQ, and robust transient response in sub-2 mm² footprints.
FAQ
What is the fixed output voltage of the TPS62232DRYT?
The TPS62232DRYT provides a factory-trimmed fixed output voltage of 1.2 V. This value is set internally via a precision resistor divider referenced to a 0.7 V bandgap, eliminating the need for external feedback components and ensuring ±2.5% accuracy across –40°C to 125°C junction temperature.
Does the TPS62232DRYT require external feedback resistors?
No, the TPS62232DRYT does not require external feedback resistors. Its 1.2 V output is achieved using an internal resistor divider network connected to the FB pin, simplifying PCB layout, reducing component count, and improving output voltage accuracy and stability compared to adjustable regulators.
What package type and dimensions does the TPS62232DRYT use?
The TPS62232DRYT uses a 6-pin USON (DRY) package measuring 1.0 mm × 1.5 mm × 0.6 mm with wettable flanks. This ultra-compact, leadless package supports high-density layouts and efficient thermal transfer through its exposed thermal pad, which must be soldered to a PCB ground plane.
How does the MODE pin affect TPS62232DRYT operation?
The MODE pin on the TPS62232DRYT selects between two operating modes: when pulled low (GND), it enables automatic PFM/PWM transition for peak efficiency across load range; when pulled high (VIN), it forces continuous PWM mode-reducing output ripple and enabling predictable EMI filtering for noise-critical applications.
What is the minimum input voltage required for TPS62232DRYT startup?
TPS62232DRYT requires a minimum input voltage of 2.05 V to initiate startup. Below this threshold, the undervoltage lockout (UVLO) circuit disables switching. The rising UVLO threshold is 1.9–2.05 V, ensuring reliable turn-on as battery voltage recovers from transient droop.
TPS62232DRYT 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)
TPS62232DRYT FAQ
1.How can I place an order for TPS62232DRYT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62232DRYT 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 TPS62232DRYT reliable?
The price and inventory of TPS62232DRYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62232DRYT is usually 5 days.
3.What payment methods are accepted for TPS62232DRYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62232DRYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62232DRYT?
TPS62232DRYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62232DRYT 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 TPS62232DRYT?
For technical support, including TPS62232DRYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62232DRYT requirements.
6.How does Aetrix verify that TPS62232DRYT is sourced from the original manufacturer or authorized distributors?
All TPS62232DRYT 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 TPS62232DRYT meets industry standards.
7.What is the process for return or replacement of TPS62232DRYT?
All TPS62232DRYT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62232DRYT, 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 TPS62232DRYT part is unused and in its original packaging.
Return procedure for TPS62232DRYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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