Overview
The TPS62207DBVTG4 from Texas Instruments is a high-efficiency, synchronous step-down DC-DC converter. This device is part of the TPS6220x family and is specifically designed for portable systems powered by 1-cell Li-Ion or 3-cell batteries. It operates with a fixed output voltage of 1.2V and is capable of delivering up to 300mA of output current. The converter features a compact SOT-23 package, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VI) | 2.5 | 6.0 | V | |
| Output Voltage (VO) | 1.2 | 1.2 | 1.2 | V |
| Output Current (IO) | 300 | mA | ||
| Efficiency | 95% | % | ||
| Switching Frequency | 650 | 1000 | 1500 | kHz |
| Operating Junction Temperature (TJ) | -40 | 150 | °C | |
| Storage Temperature (Tstg) | -65 | 150 | °C | |
| P-Channel MOSFET On-Resistance (rds(ON)) | 430 | 530 | 660 | mΩ |
| N-Channel MOSFET On-Resistance (rds(ON)) | 530 | 660 | 850 | mΩ |
Key Features
- High Efficiency: Up to 95% efficiency, reducing heat and increasing battery life in portable devices.
- Compact Package: Available in a small SOT-23 package, ideal for space-constrained designs.
- Fixed Output Voltage: Fixed output voltage of 1.2V, suitable for various low-voltage applications.
- Low Quiescent Current: Operating quiescent current as low as 15µA, and shutdown current as low as 0.1µA, minimizing standby power consumption.
- Power Save Mode: Operates in power save mode (PFM) at light load currents, enhancing efficiency and reducing power loss.
- Soft Start: Internal soft start circuit to limit inrush current during start-up, preventing voltage drops and ensuring smooth operation.
- Undervoltage Lockout: Prevents the device from misoperating at low input voltages, ensuring reliable performance.
- Dynamic Voltage Positioning: Provides additional headroom for voltage drop during load transients, ensuring stable output voltage.
Applications
- Portable Electronics: Ideal for battery-powered devices such as smartphones, tablets, and handheld gaming consoles.
- Wearable Devices: Suitable for smartwatches, fitness trackers, and other wearable technology due to its compact size and low power consumption.
- IoT Devices: Used in Internet of Things (IoT) devices that require efficient power management and compact design.
- Industrial Automation: Can be used in industrial automation systems where space is limited and high efficiency is required.
Q & A
- What is the output voltage of the TPS62207DBVTG4?
The output voltage of the TPS62207DBVTG4 is fixed at 1.2V.
- What is the maximum output current of the TPS62207DBVTG4?
The maximum output current is 300mA.
- What is the typical efficiency of the TPS62207DBVTG4?
The typical efficiency is up to 95%.
- What is the operating junction temperature range of the TPS62207DBVTG4?
The operating junction temperature range is from -40°C to 150°C.
- What package type is the TPS62207DBVTG4 available in?
The TPS62207DBVTG4 is available in a SOT-23 package.
- Does the TPS62207DBVTG4 have a soft start feature?
Yes, the TPS62207DBVTG4 has an internal soft start circuit to limit inrush current during start-up.
- What is the purpose of the undervoltage lockout in the TPS62207DBVTG4?
The undervoltage lockout prevents the device from misoperating at low input voltages.
- How does the power save mode in the TPS62207DBVTG4 enhance efficiency?
The power save mode (PFM) at light load currents enhances efficiency by reducing power loss and minimizing standby power consumption.
- What are some typical applications of the TPS62207DBVTG4?
Typical applications include portable electronics, wearable devices, IoT devices, and industrial automation systems.
- What is the switching frequency range of the TPS62207DBVTG4?
The switching frequency range is from 650kHz to 1500kHz.
