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Texas Instruments TPS62262DDCR
- Part No.:
- TPS62262DDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
TPS62262DDCR.pdf
- Description:
- IC REG BUCK 1.2V 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,695
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Product details
Overview
TPS62262DDCR from Texas Instruments is a 1.2-V fixed-output, 600-mA synchronous step-down DC/DC converter in SOT-23-5 package, operating at 2.25 MHz with power-save mode, ±1.5% output voltage accuracy in PWM mode, and 15-μA quiescent current - designed for Li-ion battery-powered mobile phones and portable media players.
For engineers reviewing the TPS62262DDCR datasheet, TPS62262DDCR pinout, TPS62262DDCR application, or TPS62262DDCR equivalent, key selection criteria include input voltage range (2 V to 6 V), fixed 1.2-V output, SOT-23-5 thermal performance (RθJA = 226.9°C/W), and MODE pin absence enabling automatic PFM/PWM transition without external control.
Technical Context
The TPS62262DDCR uses voltage-mode control with input voltage feed-forward for fast line/load regulation and supports 100% duty cycle operation near dropout. Its internal 0.6-V reference and fixed 1.2-V output imply a 2× resistor ratio in adjustable variants - but this device integrates the feedback divider, eliminating FB pin usage.
It lacks a MODE pin (per Device Comparison Table), so it operates exclusively in auto-transition PFM/PWM mode - unlike DRV-package variants. Shutdown current is <1 μA, and thermal shutdown activates at 140°C with 20°C hysteresis, ensuring robustness in compact portable layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V - eliminates external feedback resistors and simplifies BOM for dedicated rail generation. |
| Max Output Current | 600 mA at VIN ≥ 2.5 V - sufficient for low-power DSP cores and baseband processors in smartphones. |
| Input Voltage Range | 2 V to 6 V - supports single-cell Li-ion (2.7–4.2 V), two-cell alkaline (2.0–3.2 V), and 3.3-V/5-V rails. |
| Switching Frequency | 2.25 MHz (fixed) - enables use of small 2.2-μH inductors and 10-μF ceramic output capacitors for <1-mm height solutions. |
| Quiescent Current | 15 μA in PFM mode - extends battery runtime during standby or light-load states in always-on subsystems. |
| Shutdown Current | 0.1–1 μA - ensures negligible drain on battery when system is powered off via EN pin assertion. |
| Output Accuracy | ±1.5% in PWM mode - meets tight tolerance requirements for core logic supply in mobile SoCs. |
| Thermal Shutdown | 140°C activation with 20°C hysteresis - protects against sustained overload in sealed handheld enclosures. |
Pinout & Package
SOT-23-5 (DDC) package: 2.90 mm × 1.60 mm body, 1.1-mm max height, exposed pad not present - optimized for cost-sensitive, space-constrained PCBs without thermal pad routing complexity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2–6 V; requires local 4.7-μF ceramic decoupling to suppress high-frequency switching noise. |
| GND | Ground reference | Primary return path for power and control circuits; must be low-impedance connection to minimize noise coupling. |
| EN | Enable control | Active-high logic input; pulling low disables regulator and reduces current draw to <1 μA - used for power sequencing. |
| SW | Power switch node | Connects to external 2.2-μH inductor; carries high di/dt square wave - requires short, wide trace and ground guard ring. |
| FB | Feedback input | Internally connected to fixed 1.2-V divider; must be shorted to VOUT per datasheet - no external resistor required. |
Key Features
| Feature | Design Value |
|---|---|
| Auto PFM/PWM transition | No MODE pin needed - dynamically optimizes efficiency across 10 μA–600 mA load range without firmware or external logic. |
| 100% duty cycle operation | Maintains regulation down to VIN ≈ VOUT + IOUT×(RDS(on) + RL) - extracts maximum energy from aging Li-ion cells. |
| Voltage positioning | +1% output offset in PFM mode - reduces undershoot during sudden load steps (e.g., RF transmit bursts). |
| Fast soft-start | 250-μs VOUT ramp (5%→95%) - limits inrush current and prevents brownout on weak battery sources. |
| Integrated current limiting | Typical 1-A forward current limit - provides short-circuit protection without external sense resistors or ICs. |
Applications
| Mobile Phone Core Rail | Portable Media Player DSP Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processor core at 1.2 V in smartphone mainboard. IC Role / Device Role / Timing Role: Primary buck regulator delivering stable 1.2-V core voltage with dynamic voltage scaling support via EN-controlled rail sequencing. Use Value: 2.25-MHz switching enables compact 2.2-μH/10-μF filter, reducing solution footprint by >40% vs. 500-kHz alternatives while maintaining ±1.5% regulation. |
Use Scenario: Supplies 1.2-V analog/digital domain of audio codec in Bluetooth headphones. IC Role / Device Role / Timing Role: Low-noise point-of-load converter with voltage positioning to handle transient current spikes during audio playback start-up. Use Value: 15-μA quiescent current extends battery life to >10 hours in standby; PFM mode minimizes ripple-induced audible noise in sensitive analog paths. |
| Low-Power IoT Sensor Node | Wearable Fitness Tracker MCU Supply |
Use Scenario: Provides regulated 1.2-V supply to ultra-low-power microcontroller and BLE radio in coin-cell–powered environmental sensor. IC Role / Device Role / Timing Role: Always-on power stage enabling sub-10-μA sleep current and fast wake-up response via EN pin control. Use Value: <1-μA shutdown current preserves CR2032 capacity over multi-year deployments; 2-V minimum input supports full battery discharge curve. |
Use Scenario: Generates 1.2-V core voltage for ARM Cortex-M4 MCU in wrist-worn activity monitor with OLED display. IC Role / Device Role / Timing Role: High-efficiency POL converter supporting burst-mode operation during motion-sensing intervals and deep-sleep between samples. Use Value: Auto PFM/PWM transition maintains >85% efficiency from 50 μA to 500 mA - critical for extending charge cycles between USB recharges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62262DRV | Same IC die in 2-mm × 2-mm WSON-6 package with MODE pin; adds forced PWM capability and lower RθJA (67.8°C/W). | Requires MODE pin routing and layout space for thermal pad - suitable where noise filtering or thermal headroom is critical. | Select TPS62262DRV if fixed-frequency operation is needed for EMI compliance or board area allows WSON thermal pad. |
| TPS62231DQCR | Pin-compatible SOT-23-5 successor with 3-MHz switching, 1.2-V fixed output, 12-μA IQ, and improved light-load efficiency. | Higher frequency enables smaller 1-μH inductor; tighter ±1% output accuracy; supports wider 1.8–6.5-V input range. | Choose TPS62231DQCR for new designs requiring higher efficiency, smaller magnetics, or extended input voltage margin. |
Compared with TPS62262DDCR, TPS62262DRV offers superior thermal performance and PWM mode control at the cost of added pin count and layout complexity, while TPS62231DQCR delivers measurable improvements in quiescent current, accuracy, and frequency - making it the preferred upgrade path for next-generation portable designs.
Availability
TPS62262DDCR is available at Aetrix Electronics and suitable for mobile phones, portable media players, and wearable fitness trackers requiring stable component supply across long production lifecycles and varying demand volumes.
Supply support for TPS62262DDCR 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 for battery-powered systems.
The TPS6226x product line was engineered specifically for space- and power-constrained portable electronics, delivering high-frequency, low-quiescent-current step-down regulation in minimal-footprint packages for smartphones and wearables.
FAQ
What is the output voltage configuration of the TPS62262DDCR?
The TPS62262DDCR provides a factory-trimmed fixed 1.2-V output. Unlike adjustable variants (e.g., TPS62260), it does not require external feedback resistors - the FB pin is internally connected to generate 1.2 V, simplifying design and reducing BOM count. This configuration is confirmed in the Device Comparison Table and Electrical Characteristics section of the SLVS763E datasheet.
Does the TPS62262DDCR have a MODE pin?
No, the TPS62262DDCR (DDC package) does not include a MODE pin. As documented in the Device Comparison Table, only DRV-package variants (e.g., TPS62262DRV) feature this pin. The DDC version operates exclusively in automatic PFM/PWM transition mode, optimizing efficiency without external mode control - a key differentiator from its WSON counterpart.
What is the recommended inductor value for the TPS62262DDCR?
Texas Instruments specifies 2.2 μH as the optimized inductor value for the TPS62262DDCR, paired with a 10-μF ceramic output capacitor. This combination achieves stable operation, minimal output ripple, and optimal efficiency across the 2–6 V input range. The datasheet explicitly states the device is "optimized for operation with a 2.2-μH inductor and 10-μF output capacitor" in Section 9.2.2.2.
How does the TPS62262DDCR handle thermal overload?
The TPS62262DDCR incorporates thermal shutdown that activates at approximately 140°C junction temperature, turning off both high-side and low-side MOSFETs. Operation resumes once the junction cools below 120°C (20°C hysteresis). This protection is independent of ambient conditions and is validated across the full –40°C to 85°C operating range per Section 7.4 and 8.3.5 of the SLVS763E datasheet.
Can the TPS62262DDCR operate from a single alkaline cell?
Yes, the TPS62262DDCR supports input voltages as low as 2 V, making it compatible with two-cell alkaline batteries (nominal 3 V, discharge down to ~2.0 V per cell). Its 100% duty cycle capability ensures regulation is maintained even as battery voltage drops near the 1.2-V output level - a critical feature for maximizing runtime in remote controls and wireless sensors.
TPS62262DDCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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):
- 2V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- 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
TPS62262DDCR FAQ
1.How can I place an order for TPS62262DDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62262DDCR 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 TPS62262DDCR reliable?
The price and inventory of TPS62262DDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62262DDCR is usually 5 days.
3.What payment methods are accepted for TPS62262DDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62262DDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62262DDCR?
TPS62262DDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62262DDCR 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 TPS62262DDCR?
For technical support, including TPS62262DDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62262DDCR requirements.
6.How does Aetrix verify that TPS62262DDCR is sourced from the original manufacturer or authorized distributors?
All TPS62262DDCR 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 TPS62262DDCR meets industry standards.
7.What is the process for return or replacement of TPS62262DDCR?
All TPS62262DDCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62262DDCR, 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 TPS62262DDCR part is unused and in its original packaging.
Return procedure for TPS62262DDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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