Overview
The TPS62203DBVTG4 is a high-efficiency synchronous step-down DC-DC converter produced by Texas Instruments. This device is part of the TPS6220x family, which is designed for high efficiency and compact size, making it ideal for various portable and low-power applications. The TPS62203DBVTG4 operates with a fixed frequency pulse width modulation (PWM) at moderate to heavy load currents and switches to power save mode with pulse frequency modulation (PFM) at light load currents, ensuring optimal efficiency across a wide range of operating conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VI) | 2.5 | 6.0 | V | |
| Output Voltage (VO) | 3.3 | 3.3 | V | |
| Output Current (IO) | 300 | mA | ||
| Switching Frequency (fS) | 650 | 1000 | 1500 | kHz |
| Operating Junction Temperature (TJ) | -40 | 125 | °C | |
| Efficiency | Up to 95% | % | ||
| Package | SOT-23 (5-pin) | |||
| Inductor (L) | 4.7 | 10 | µH | |
| Input Capacitor (CI) | 4.7 | µF | ||
| Output Capacitor (CO) | 10 | µF |
Key Features
- High Efficiency: Up to 95% efficiency, making it suitable for power-sensitive applications.
- Compact Package: Available in a 5-pin SOT-23 package, minimizing system size.
- Advanced Control Scheme: Uses a fast response voltage mode control scheme with input voltage feed forward for superior line and load regulation.
- Dynamic Output-Voltage Positioning: Adjusts output voltage based on load current to optimize efficiency.
- Low Quiescent Current: Operating quiescent current as low as 15 µA and shutdown supply current as low as 0.1 µA.
- Undervoltage Lockout: Prevents device misoperation at low input voltages.
- Small External Components: Requires only three small external components (inductor, input capacitor, and output capacitor).
Applications
- PDAs and Pocket PCs: Ideal for portable devices requiring efficient power management.
- Cellular Phones and Smart Phones: Suitable for mobile devices with stringent power requirements.
- Digital Cameras: Used in camera systems to ensure efficient power conversion.
- Portable Media Players: Enhances battery life in portable media devices.
- Portable Equipment: General use in various portable electronic devices.
Q & A
- What is the typical switching frequency of the TPS62203DBVTG4?
The typical switching frequency is 1000 kHz, with a range of 650 kHz to 1500 kHz.
- What is the maximum output current of the TPS62203DBVTG4?
The maximum output current is 300 mA.
- What is the package type of the TPS62203DBVTG4?
The device is available in a 5-pin SOT-23 package.
- What is the efficiency range of the TPS62203DBVTG4?
The efficiency can be up to 95%.
- What are the recommended external components for the TPS62203DBVTG4?
The device requires an inductor (4.7 µH to 10 µH), an input capacitor (4.7 µF), and an output capacitor (10 µF).
- How does the TPS62203DBVTG4 manage low input voltages?
The device features an undervoltage lockout circuit to prevent misoperation at low input voltages.
- What is the operating junction temperature range of the TPS62203DBVTG4?
The operating junction temperature range is from -40°C to 125°C.
- What is the quiescent current of the TPS62203DBVTG4 in operating mode?
The operating quiescent current is typically 15 µA.
- What is the shutdown supply current of the TPS62203DBVTG4?
The shutdown supply current is typically 0.1 µA.
- In which applications is the TPS62203DBVTG4 commonly used?
The device is commonly used in PDAs, pocket PCs, cellular phones, smart phones, digital cameras, portable media players, and other portable equipment.
