Overview
The TPS62170DSGR is a synchronous step-down DC-DC converter produced by Texas Instruments. It is part of the TPS6217x family, which utilizes the advanced DCS-Control™ (Direct Control with Seamless transition into power save mode) topology. This topology combines the advantages of hysteretic, voltage mode, and current mode control, ensuring high efficiency and fast response to dynamic load changes. The device is designed for applications requiring a high level of power management efficiency and reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 3 V to 17 V |
| Output Current | Up to 500 mA |
| Output Voltage Range | 0.9 V to 6 V (adjustable and fixed versions) |
| Package Type | 8-pin WSON (DSG) or 8-WFDFN Exposed Pad |
| Package Size | 2-mm × 2-mm |
| High-Side MOSFET ON-Resistance (VIN ≥ 6 V) | 300 mΩ to 600 mΩ |
| Low-Side MOSFET ON-Resistance (VIN ≥ 6 V) | 120 mΩ to 200 mΩ |
| Quiescent Current in Power Save Mode | About 17 μA from VIN |
| Shutdown Current Consumption | Less than 2 μA |
Key Features
- Advanced DCS-Control™ topology for high efficiency and fast response to load changes.
- Pulse Width Modulation (PWM) mode for medium and heavy load conditions.
- Power save mode for light loads, maintaining high efficiency.
- Internally compensated regulation network for stable operation with small external components.
- Low ESR capacitor compatibility.
- Power sequencing capability through enable and open-drain power good pins.
- High accuracy DC load regulation.
Applications
The TPS62170DSGR is suitable for a variety of applications requiring efficient power management, such as:
- Portable electronics.
- Industrial control systems.
- Automotive systems.
- Medical devices.
- Consumer electronics.
Q & A
- What is the input voltage range of the TPS62170DSGR? The input voltage range is from 3 V to 17 V.
- What is the maximum output current of the TPS62170DSGR? The maximum output current is up to 500 mA.
- What are the output voltage options for the TPS62170DSGR? The output voltage can be adjusted between 0.9 V and 6 V, and there are also fixed output voltage versions available.
- What is the package type and size of the TPS62170DSGR? The device is available in an 8-pin WSON (DSG) or 8-WFDFN Exposed Pad package, with a size of 2-mm × 2-mm.
- How does the DCS-Control™ topology benefit the TPS62170DSGR? The DCS-Control™ topology combines the advantages of hysteretic, voltage mode, and current mode control, ensuring high efficiency and fast response to dynamic load changes.
- What is the quiescent current in power save mode? The quiescent current in power save mode is about 17 μA from VIN.
- How much current does the device consume in shutdown mode? The shutdown current consumption is less than 2 μA.
- Can the TPS62170DSGR support power sequencing? Yes, power sequencing is possible by configuring the enable and open-drain power good pins.
- What types of capacitors are compatible with the TPS62170DSGR? The device is compatible with low ESR capacitors.
- What are some typical applications for the TPS62170DSGR? Typical applications include portable electronics, industrial control systems, automotive systems, medical devices, and consumer electronics.
