Overview
The TPS62801YKAT from Texas Instruments is a high-efficiency, ultra-low quiescent current synchronous step-down converter. This device is part of the TPS6280x family, which features advanced DCS-Control topology for seamless transition between power save and forced PWM modes. The TPS62801YKAT is designed for applications requiring high efficiency over a wide load current range, from microamperes to several hundred milliamperes. It operates with an input voltage range of 1.75V to 5.5V and can deliver up to 1A of output current. The device is packaged in a tiny 6-pin, 0.35mm pitch WCSP (DSBGA) package, making it ideal for space-constrained designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 1.75V to 5.5V | V |
| Output Current | Up to 1A | A |
| Output Voltage Range | 0.8V to 1.55V (in 50-mV steps) | V |
| Switching Frequency | Typically 4MHz | Hz |
| Quiescent Current (Power Save Mode) | Typically 2.3µA | µA |
| Output Voltage Accuracy (PWM Mode) | ±1% | % |
| Package Type | 6-pin DSBGA (YKA) | - |
| Package Size | 1.05 mm × 0.70 mm | mm |
| Thermal Shutdown Temperature | Typically 160°C | °C |
Key Features
- High Efficiency: The TPS62801YKAT achieves high efficiency across a wide load current range, thanks to TI's DCS-Control topology.
- Ultra-Low Quiescent Current: The device operates with a typical quiescent current of 2.3µA in power save mode.
- Flexible Output Voltage Setting: The output voltage can be set using a resistor-to-digital (R2D) converter, allowing for 16 selectable output voltages.
- Smart Enable Pin: The device features a smart enable pin with an internal 500-kΩ pulldown resistor to prevent uncontrolled start-up.
- Thermal Shutdown and Short Circuit Protection: Integrated thermal shutdown and current limit protection for high-side and low-side MOSFETs.
- Output Discharge Function: Ensures a defined down-ramp of the output voltage when the device is disabled.
- Compact Package: Tiny 6-pin, 0.35mm pitch WCSP package supporting design heights below 0.6mm and design sizes below 5mm².
Applications
The TPS62801YKAT is suitable for a variety of applications requiring high efficiency and low quiescent current, including:
- Battery-powered devices such as smartphones, tablets, and wearables.
- Portable electronics like handheld games, GPS devices, and cameras.
- Industrial control systems and IoT devices.
- Automotive systems requiring low power consumption and high reliability.
- Medical devices where power efficiency and compact design are critical.
Q & A
- What is the input voltage range of the TPS62801YKAT?
The input voltage range is from 1.75V to 5.5V.
- What is the maximum output current of the TPS62801YKAT?
The maximum output current is up to 1A.
- What is the typical switching frequency of the TPS62801YKAT?
The typical switching frequency is 4MHz.
- What is the quiescent current in power save mode?
The typical quiescent current in power save mode is 2.3µA.
- How is the output voltage set on the TPS62801YKAT?
The output voltage can be set using a resistor-to-digital (R2D) converter.
- What is the package type and size of the TPS62801YKAT?
The device is packaged in a 6-pin DSBGA (YKA) package with dimensions of 1.05 mm × 0.70 mm.
- Does the TPS62801YKAT have thermal shutdown protection?
Yes, the device has thermal shutdown protection with a typical threshold of 160°C.
- What is the purpose of the output discharge function?
The output discharge function ensures a defined down-ramp of the output voltage when the device is disabled.
- Is the TPS62801YKAT suitable for battery-powered devices?
Yes, it is highly suitable due to its high efficiency and ultra-low quiescent current.
- What are some common applications for the TPS62801YKAT?
Common applications include battery-powered devices, portable electronics, industrial control systems, automotive systems, and medical devices.
