Overview
The TPS62162DSGT from Texas Instruments is a high-efficiency, synchronous step-down DC/DC converter optimized for applications requiring high power density. This device is part of the TPS6216x family, which utilizes the advanced DCS-Control™ topology. This topology combines the advantages of hysteretic, voltage mode, and current mode control, ensuring excellent DC voltage regulation and superior load transient response. The converter operates with a high switching frequency of typically 2.25 MHz, allowing the use of small inductors and providing fast transient response and high output voltage accuracy.
The TPS62162DSGT supports a wide input voltage range from 3 V to 17 V, making it suitable for systems powered by Li-Ion batteries or 12-V intermediate power rails. It can deliver up to 1-A continuous output current at output voltages between 0.9 V and 6 V, with a 100% duty cycle mode available. The device is available in both adjustable and fixed output voltage versions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3 V to 17 V | V |
| Output Current | Up to 1 A | A |
| Output Voltage Range | 0.9 V to 6 V | V |
| Switching Frequency | Typically 2.25 MHz | Hz |
| Quiescent Current | Typically 17 µA | µA |
| Package Type | 8-Pin WSON (DSG) or 8-Pin VSSOP (DGK) | - |
| Package Size (WSON) | 2.00 mm × 2.00 mm | mm |
| Package Size (VSSOP) | 3.00 mm × 3.00 mm | mm |
| Operating Temperature Range | -40°C to 125°C | °C |
| Thermal Resistance (Junction to Ambient) | 61.8 °C/W (WSON), 184.3 °C/W (VSSOP) | °C/W |
Key Features
- DCS-Control™ Topology: Combines the advantages of hysteretic, voltage mode, and current mode control for excellent DC voltage and load transient regulation.
- Wide Input Voltage Range: From 3 V to 17 V, suitable for systems powered by Li-Ion batteries or 12-V intermediate power rails.
- High Output Current: Up to 1-A continuous output current.
- Adjustable and Fixed Output Voltage: Versions available from 0.9 V to 6 V.
- Seamless Power Save Mode Transition: Maintains high efficiency over the entire load range.
- Low Quiescent Current: Typically 17 µA in power save mode.
- Power Good Output: Indicates when the output voltage is ready.
- 100% Duty Cycle Mode: Available for specific applications.
- Short Circuit and Over Temperature Protection: Ensures device reliability.
- Pin to Pin Compatibility: With TPS62170 and TPS62125.
- Compact Packaging: Available in 8-pin WSON and VSSOP packages.
Applications
- Standard 12-V Rail Supplies: Suitable for various power supply applications.
- POL Supply From Single or Multiple Li-Ion Batteries: Ideal for battery-powered systems.
- LDO Replacement: Can replace linear voltage regulators in many applications.
- Embedded Systems: Used in various embedded system designs.
- Digital Still Cameras and Video Devices: Suitable for power management in imaging devices.
- Mobile PCs, Tablet PCs, and Modems: Used in portable electronic devices.
Q & A
- What is the input voltage range of the TPS62162DSGT?
The input voltage range is from 3 V to 17 V.
- What is the maximum output current of the TPS62162DSGT?
The maximum output current is up to 1 A.
- What are the available output voltage ranges for the TPS62162DSGT?
The output voltage range is from 0.9 V to 6 V, available in both adjustable and fixed versions.
- What is the switching frequency of the TPS62162DSGT?
The switching frequency is typically 2.25 MHz.
- What is the quiescent current in power save mode?
The quiescent current is typically 17 µA in power save mode.
- Does the TPS62162DSGT have built-in protection features?
Yes, it includes short circuit protection and over temperature protection.
- What are the package options for the TPS62162DSGT?
It is available in 8-pin WSON (DSG) and 8-pin VSSOP (DGK) packages.
- What is the operating temperature range of the TPS62162DSGT?
The operating temperature range is from -40°C to 125°C.
- Can the TPS62162DSGT be used in power sequencing applications?
Yes, power sequencing is possible by configuring the enable and open-drain power good pins.
- Is the TPS62162DSGT compatible with other Texas Instruments devices?
Yes, it is pin to pin compatible with TPS62170 and TPS62125.
