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Texas Instruments TPS62260DDCTG4
- Part No.:
- TPS62260DDCTG4
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
TPS62260DDCTG4.pdf
- Description:
- IC REG BUCK ADJ 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,523
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Product details
Overview
TPS62260DDCTG4 from Texas Instruments is a synchronous step-down DC/DC converter optimized for battery-powered portable electronics. It delivers up to 600 mA output current from 2 V–6 V input, operates at 2.25 MHz fixed switching frequency, supports power save mode with 15-μA quiescent current, and features adjustable output voltage (0.6 V to VIN) via external feedback divider - used in mobile phone core logic rails.
For engineers reviewing the TPS62260DDCTG4 datasheet, TPS62260DDCTG4 pinout, TPS62260DDCTG4 application, or TPS62260DDCTG4 equivalent, key selection criteria include input voltage range compatibility with single-cell Li-ion (2.0–6.0 V), light-load efficiency in PFM mode, MODE-pin controllable PWM/PSM transition, thermal shutdown behavior (140°C), and SOT-23-5 package constraints for space-constrained PCB layouts.
Technical Context
The TPS62260DDCTG4 employs voltage-mode control with input-voltage feed-forward for fast line/load regulation and stable operation with small ceramic capacitors. Its integrated high-side (480 mΩ max) and low-side (380 mΩ max) MOSFETs enable synchronous rectification, while the internal 0.6-V reference and FB pin support precise output adjustment.
It implements dynamic voltage positioning (+1% in PFM mode) to suppress load-step undershoot/overshoot, undervoltage lockout (1.85 V falling threshold), and 100% duty-cycle dropout operation to extend battery runtime. The absence of a MODE pin in the DDC package means automatic PFM/PWM transition - unlike DRV variants with forced-PWM capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.0 V to 6.0 V - supports single Li-ion, two/three alkaline cells, and 3.3/5-V rails without external regulators. |
| Max Output Current | 600 mA at VIN ≥ 2.5 V - sufficient for DSP cores, microcontroller I/O banks, and RF front-end biasing. |
| Switching Frequency | 2.25 MHz (±12.5%) - enables use of sub-3-mm inductors (e.g., 2.2 μH) and compact 0603/0805 capacitors. |
| Quiescent Current | 15 μA in PFM mode (MODE = GND) - extends battery life in standby/sleep states of portable devices. |
| Output Voltage Range | 0.6 V to VIN - programmable via external resistor divider; internal 0.6-V reference ensures ±1.5% accuracy in PWM mode. |
| Shutdown Current | 0.1 μA typical (EN = GND) - minimizes battery drain during full system power-off. |
| Thermal Shutdown | 140°C junction temperature with 20°C hysteresis - protects IC and PCB under sustained overload or poor airflow. |
Pinout & Package
SOT-23-5 (DDC) package: 2.90 mm × 1.60 mm footprint, 1.1-mm height, thermally enhanced pad-less construction. Pin 1 = VIN, Pin 2 = GND, Pin 3 = EN, Pin 4 = FB, Pin 5 = SW.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input supply | Accepts 2–6 V; requires local 4.7-μF ceramic decoupling; connects directly to battery or intermediate rail. |
| GND (Pin 2) | Ground reference | Primary return path for power and feedback circuits; must be low-impedance connection to PCB ground plane. |
| EN (Pin 3) | Enable control input | Active-high logic: >1 V enables regulator; <0.4 V forces shutdown (<1-μA IQ); supports power sequencing. |
| FB (Pin 4) | Feedback input | Monitors output via resistor divider; sets VOUT = 0.6 V × (1 + R1/R2); sensitive to noise - route away from SW node. |
| SW (Pin 5) | Switch node | Connects to inductor; carries high di/dt pulses; requires short, wide trace and ground stitching to minimize EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Power Save Mode (PFM) | Automatic entry below ~10–20 mA load; reduces IQ to 15 μA while maintaining ±1% output regulation via +1% voltage positioning. |
| Fast Transient Response | Voltage-mode control with feed-forward enables <250 μs output ramp-up and minimal overshoot during 10–90% load steps. |
| Low-Dropout Operation | 100% duty cycle mode engages as VIN approaches VOUT, sustaining regulation down to VIN = VOUT + IOUT×(RDS(on)_HS + DCR_L). |
| Integrated Protection | Current-limit protection (0.8–1.2 A), thermal shutdown (140°C), and undervoltage lockout (1.85 V falling) prevent fault propagation. |
| Small Solution Size | Supports 2.2-μH inductor and 10-μF output capacitor - total BOM area < 12 mm² with 0603/0805 passives and SOT-23-5 IC. |
Applications
| Mobile Phone Baseband Core Supply | Portable Media Player Audio Codec Bias |
|---|---|
Use Scenario: Powers ARM-based application processor core (e.g., OMAP, Snapdragon) requiring dynamically scaled 0.8–1.2 V at up to 500 mA. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated, low-noise core voltage with fast load transient response. Use Value: Enables deep-sleep modes via 15-μA quiescent current and maintains voltage stability during burst processing using voltage positioning. |
Use Scenario: Supplies clean 1.8-V bias to stereo audio DAC/ADC in MP3 players and Bluetooth headsets. IC Role / Device Role / Timing Role: Low-ripple, low-noise POL converter operating in forced-PWM (via MODE pin on DRV variant) or auto-PFM for battery longevity. Use Value: Achieves <10-mVpp output ripple with 22-pF feedforward capacitor and 10-μF X5R ceramic output cap - meeting SNR requirements. |
| Industrial Sensor Node Microcontroller Rail | Wearable Fitness Tracker BLE SoC Supply |
Use Scenario: Provides 3.3-V or adjustable 2.8-V rail to ultra-low-power MCU (e.g., MSP430, nRF52) in battery-operated environmental sensors. IC Role / Device Role / Timing Role: High-efficiency buck converter enabling multi-year operation on coin-cell or Li-SOCl₂ batteries. Use Value: Delivers >85% efficiency at 1–10 mA loads via PFM mode and supports cold-temperature operation down to –40°C ambient. |
Use Scenario: Powers Bluetooth Low Energy system-on-chip (e.g., DA14580, nRF52832) in wrist-worn devices with tight height constraints (<1 mm). IC Role / Device Role / Timing Role: Compact, low-profile DC/DC regulator enabling <1-mm solution height using 2-mm × 1.6-mm SOT-23-5 and 0.8-mm-height inductor. Use Value: Maintains regulation across full battery discharge (4.2 V → 2.5 V) using 100% duty cycle mode - maximizing usable battery capacity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62260DRV | 6-pin WSON (2×2 mm) with MODE pin; supports forced-PWM operation; higher thermal performance (RθJA = 67.8°C/W vs 226.9°C/W). | Preferred where EMI filtering is critical (fixed-frequency PWM required) or PCB layout allows larger thermal pad. | Select TPS62260DRV if MODE pin control or improved thermal dissipation is needed; not pin-compatible with DDC package. |
| TPS62740DSSR | Lower IQ (360 nA shutdown, 250 nA operational), 200-mA output, 2–5.5 V input; designed for energy-harvesting and coin-cell applications. | Better suited for ultra-low-power IoT nodes with intermittent wake cycles; insufficient for 600-mA loads. | Choose TPS62740DSSR only for sub-200-mA, nanowatt-class systems - not a functional replacement for TPS62260DDCTG4's 600-mA capability. |
Compared with TPS62260DRV, the TPS62260DDCTG4 trades MODE-pin flexibility and thermal margin for smaller footprint and lower assembly cost; compared with TPS62740DSSR, it delivers 3× higher output current but lacks nanoamp-level quiescent operation - making it optimal for mid-power portable applications where size and cost dominate.
Availability
TPS62260DDCTG4 is available at Aetrix Electronics and suitable for mobile phones, portable media players, and industrial sensor nodes requiring stable component supply, long-lifecycle availability, and consistent parametric performance across production batches.
Supply support for TPS62260DDCTG4 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.
The TPS6226x product line was designed specifically for space- and power-constrained portable electronics, delivering high-frequency, high-efficiency step-down regulation from single-cell Li-ion and multi-cell alkaline sources.
FAQ
What is the maximum output current capability of the TPS62260DDCTG4?
The TPS62260DDCTG4 delivers up to 600 mA when input voltage is ≥2.5 V, 300 mA at 2.3–2.5 V, and 150 mA at 2.0–2.3 V. This stepped current limit ensures safe operation across the full 2–6 V input range while protecting internal MOSFETs and maintaining thermal stability in the SOT-23-5 package.
Does the TPS62260DDCTG4 support fixed output voltages?
No - the TPS62260DDCTG4 is the adjustable version of the TPS6226x family. Fixed-output variants (e.g., TPS62261DDCTG4 = 1.8 V, TPS62262DDCTG4 = 1.2 V) exist, but the TPS62260DDCTG4 requires an external resistor divider on the FB pin to set VOUT between 0.6 V and VIN, using the internal 0.6-V reference.
How does the TPS62260DDCTG4 manage efficiency at light loads?
The TPS62260DDCTG4 automatically enters power save mode (PFM) at light loads, reducing quiescent current to 15 μA and skipping switching cycles to maintain >80% efficiency down to ~1 mA. Unlike MODE-pin-equipped variants, the DDC package uses internal logic for seamless PFM/PWM transition without external control.
What thermal considerations apply to the TPS62260DDCTG4 in SOT-23-5 package?
The TPS62260DDCTG4 in DDC package has a junction-to-ambient thermal resistance (RθJA) of 226.9°C/W. To avoid thermal shutdown at 600 mA, keep ambient temperature ≤60°C or add copper pour and thermal vias. Derate output current above 60°C ambient per the thermal characteristics table in the datasheet.
Can the TPS62260DDCTG4 operate with a 2.0-V input supply?
Yes - the TPS62260DDCTG4 supports 2.0-V minimum input, enabling use with deeply discharged Li-ion cells or two alkaline cells. At 2.0 V, it delivers up to 150 mA and enters 100% duty cycle mode to sustain regulation, though output voltage accuracy degrades slightly near dropout due to RDS(on) and inductor DCR effects.
TPS62260DDCTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS62260DDCTG4 FAQ
1.How can I place an order for TPS62260DDCTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62260DDCTG4 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 TPS62260DDCTG4 reliable?
The price and inventory of TPS62260DDCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62260DDCTG4 is usually 5 days.
3.What payment methods are accepted for TPS62260DDCTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62260DDCTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62260DDCTG4?
TPS62260DDCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62260DDCTG4 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 TPS62260DDCTG4?
For technical support, including TPS62260DDCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62260DDCTG4 requirements.
6.How does Aetrix verify that TPS62260DDCTG4 is sourced from the original manufacturer or authorized distributors?
All TPS62260DDCTG4 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 TPS62260DDCTG4 meets industry standards.
7.What is the process for return or replacement of TPS62260DDCTG4?
All TPS62260DDCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62260DDCTG4, 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 TPS62260DDCTG4 part is unused and in its original packaging.
Return procedure for TPS62260DDCTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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