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Texas Instruments TPS62243DRVR
- Part No.:
- TPS62243DRVR
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS62243DRVR.pdf
- Description:
- IC REG BUCK 1.8V 300MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:10,208
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Product details
Overview
TPS62243DRVR from Texas Instruments is a synchronous step-down DC-DC converter optimized for battery-powered portable electronics, delivering up to 300 mA at a fixed 1.8 V output with 2.25-MHz fixed-frequency PWM or automatic PFM mode, operating from 2.0 V to 6.0 V input - ideal for mobile phone baseband power rails.
For engineers reviewing the TPS62243DRVR datasheet, TPS62243DRVR pinout, TPS62243DRVR application, or TPS62243DRVR equivalent, key selection criteria include its 1.8 V fixed output, WSON-6 package footprint, MODE-pin controllable PWM/PSM transition, ≤15 μA quiescent current in PFM, and integrated high-/low-side MOSFETs with 240 mΩ/180 mΩ typical RDS(on).
Technical Context
The TPS62243DRVR implements voltage-mode control with input-voltage feedforward for fast line/load regulation and stable operation with small ceramic capacitors. Its dual-mode operation - forced PWM (MODE = VIN) or automatic PFM/PWM transition (MODE = GND) - enables noise-sensitive or ultra-low-power system design.
It integrates undervoltage lockout (1.85 V falling threshold), thermal shutdown (140 °C), soft-start (250 μs ramp time), and 100% duty-cycle dropout operation to extend battery runtime. The device uses internal 0.6 V reference and supports fixed 1.8 V output without external feedback resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V - eliminates need for external feedback divider; simplifies layout and reduces BOM count. |
| Input Voltage Range | 2.0 V to 6.0 V - supports single Li-ion (2.7–4.2 V), two/three-cell alkaline, and 3.3 V/5 V rails. |
| Max Output Current | 300 mA - sufficient for baseband processors, RF transceivers, and low-power DSPs in handheld devices. |
| Switching Frequency | 2.25 MHz (typical) - enables use of tiny 2.2 µH inductors and 0603-size 4.7 µF/10 µF ceramic capacitors. |
| Quiescent Current | 15 µA (PFM mode, no load) - extends standby battery life in always-on subsystems like Bluetooth headsets. |
| Efficiency | >94% (at 300 mA, VIN = 3.6 V) - minimizes thermal dissipation in space-constrained WSON-6 package. |
| Shutdown Current | <1 µA - ensures near-zero leakage during system sleep or power-off states. |
Pinout & Package
TPS62243DRVR is housed in a thermally enhanced 6-pin WSON package (2.0 mm × 2.0 mm × 0.8 mm) with exposed thermal pad (Pin 6 = GND). The package supports <1-mm solution height and requires PCB thermal vias under the pad for optimal junction-to-board conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 5) | Power input supply | Accepts 2.0–6.0 V; must be decoupled with ≥4.7 µF ceramic capacitor close to pin. |
| GND (Pin 6) | Ground reference & thermal pad | Primary return path; exposed pad must be soldered to PCB ground plane with ≥4 thermal vias. |
| EN (Pin 4) | Enable control input | Active-high logic; pull high to enable, low to enter shutdown (<1 µA ISD). |
| FB (Pin 3) | Feedback input | Internally connected to 1.8 V output divider; no external resistors required for fixed-output variant. |
| SW (Pin 1) | Switch node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance routing. |
| MODE (Pin 2) | Operation mode select | Pull to GND for auto PFM/PWM transition; pull to VIN for forced fixed-frequency PWM (reduces EMI). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-/low-side MOSFETs | 240 mΩ / 180 mΩ typical RDS(on) - reduces conduction loss and eliminates external switch drivers. |
| Power save mode (PSM) | Automatic PFM entry below ~10 mA load - maintains >85% efficiency down to microamp loads. |
| Soft-start | 250 µs VOUT ramp time (5% → 95%) - limits inrush current and prevents input rail collapse on weak sources. |
| 100% duty cycle operation | Enables regulation down to VIN ≈ VOUT + IOUT×RDS(on) - maximizes usable battery voltage range. |
| Thermal shutdown with hysteresis | 140 °C trip, 120 °C recovery - protects against sustained overload or poor heatsinking without oscillation. |
Applications
| Bluetooth Headsets | Mobile Phone Baseband |
|---|---|
|
Use Scenario: Powering Bluetooth audio codec and RF transceiver in compact ear-worn form factor. IC Role / Device Role / Timing Role: Primary 1.8 V LDO-replacement buck regulator supplying digital core logic. Use Value: 15 µA quiescent current extends talk/standby time; 2.25 MHz switching avoids audible noise in audio band. |
Use Scenario: Generating 1.8 V supply for application processor I/O or memory interface in smartphone PMIC subsystem. IC Role / Device Role / Timing Role: Standalone point-of-load converter with fast transient response for burst-mode processing. Use Value: Voltage-mode control + feedforward delivers <10 µs load-step response; WSON-6 footprint saves board area. |
| WLAN Modules | Digital Cameras |
|
Use Scenario: Supplying 1.8 V to IEEE 802.11b/g/n MAC/baseband IC in portable hotspot or IoT gateway. IC Role / Device Role / Timing Role: Efficient mid-rail converter between main 3.3 V rail and low-voltage WLAN chipset. Use Value: >94% peak efficiency reduces thermal load in sealed enclosures; MODE pin allows EMI tuning during RF transmit. |
Use Scenario: Powering image sensor interface and JPEG encoder ASIC in ultra-thin digital camera or action cam. IC Role / Device Role / Timing Role: Compact, low-noise power source for noise-sensitive analog front-end and digital signal chain. Use Value: Forced PWM mode (MODE = VIN) suppresses switching frequency harmonics near sensor clock domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62242DRVR | Fixed 1.2 V output; identical package, pinout, and electrical specs except VOUT. | Used where 1.2 V core logic supply is required instead of 1.8 V I/O rail. | Select TPS62242DRVR only when system architecture mandates 1.2 V - not a drop-in replacement for 1.8 V designs. |
| TPS62260DRVR | Same WSON-6 package but higher 600 mA rating, 2.5 MHz fSW, and improved light-load efficiency (12 µA IQ). | Suitable for next-generation designs requiring higher current headroom or tighter EMI control. | TPS62260DRVR offers scalability but requires validation of inductor/capacitor sizing due to higher fSW and current capability. |
Compared with TPS62243DRVR, TPS62242DRVR provides identical functionality at 1.2 V output - requiring schematic and layout revision for voltage change - while TPS62260DRVR delivers higher current and lower quiescent current in the same footprint, enabling performance upgrades without mechanical redesign.
Availability
TPS62243DRVR is available at Aetrix Electronics and suitable for Bluetooth headsets, mobile phone baseband supplies, and WLAN modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp.
Supply support for TPS62243DRVR 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 portable and industrial systems.
The TPS6224x product line was designed specifically for space-constrained, battery-operated consumer electronics - emphasizing ultra-small solution size (<1 mm height), high light-load efficiency, and seamless integration into multi-rail power architectures.
FAQ
What is the output voltage of the TPS62243DRVR and is it adjustable?
The TPS62243DRVR provides a fixed 1.8 V output voltage. It does not support external adjustment - the FB pin is internally connected to a precision resistor divider tied to the 0.6 V reference, eliminating the need for external feedback components. This simplifies design and improves accuracy versus adjustable variants like TPS62240DRVR.
Does the TPS62243DRVR require an external inductor and output capacitor?
Yes, the TPS62243DRVR requires an external inductor (typically 2.2 µH) and output capacitor (typically 10 µF ceramic) to complete the buck converter circuit. The datasheet specifies stable operation with 1.5–4.7 µH inductors and 4.7–22 µF output capacitors; recommended values ensure optimal efficiency, ripple, and transient response.
How does the MODE pin affect the operation of the TPS62243DRVR?
The MODE pin on the TPS62243DRVR selects between two operating modes: when pulled low (GND), the device automatically transitions between PWM and PFM to maximize light-load efficiency; when pulled high (VIN), it operates exclusively in fixed-frequency PWM mode - reducing output voltage ripple and EMI at the cost of higher quiescent current under light loads.
What is the thermal performance of the TPS62243DRVR in its WSON-6 package?
The TPS62243DRVR in DRV (WSON-6) package has a junction-to-ambient thermal resistance (RθJA) of 67.8 °C/W under standard JEDEC PCB conditions. With proper PCB thermal design - including soldering the exposed thermal pad to a solid ground plane using ≥4 thermal vias - it sustains full 300 mA output continuously at 85 °C ambient temperature.
Can the TPS62243DRVR operate with a 2.0 V input supply?
Yes, the TPS62243DRVR supports input voltages as low as 2.0 V. At this minimum VIN, it delivers up to 150 mA while maintaining regulation - sufficient for end-of-battery-life operation in single-cell Li-ion or two-cell alkaline systems. Its 100% duty-cycle capability ensures continued regulation even when VIN approaches VOUT.
TPS62243DRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- 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):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 300mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS62243DRVR FAQ
1.How can I place an order for TPS62243DRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62243DRVR 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 TPS62243DRVR reliable?
The price and inventory of TPS62243DRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62243DRVR is usually 5 days.
3.What payment methods are accepted for TPS62243DRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62243DRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62243DRVR?
TPS62243DRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62243DRVR 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 TPS62243DRVR?
For technical support, including TPS62243DRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62243DRVR requirements.
6.How does Aetrix verify that TPS62243DRVR is sourced from the original manufacturer or authorized distributors?
All TPS62243DRVR 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 TPS62243DRVR meets industry standards.
7.What is the process for return or replacement of TPS62243DRVR?
All TPS62243DRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62243DRVR, 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 TPS62243DRVR part is unused and in its original packaging.
Return procedure for TPS62243DRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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