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The TPS62152-Q1 device is an easy-to-use
synchronous step-down dc-dc converter optimized for applications with high power density and features a fixed 3.3-V output with a current capability of up to
1 A. A high switching frequency of 2.5 MHz (typical) allows the use of small inductors and provides fast transient response as well as high output-voltage accuracy by use of the DCS-Control topology.
With a wide operating input voltage range of 4 V to 17 V, the device is ideally suited for systems powered from either a Li-Ion or other batteries as well as from 12-V intermediate power rails.
The soft-start pin controls the output voltage start-up ramp, which allows operation either as a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and open-drain power-good pins.
In power-save mode, the device draws quiescent current of about 17 μA from VIN. Power-save mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. Entering shutdown mode turns the device off, and shutdown current consumption is less than 2 μA.
The device package is a 16-pin VQFN measuring
3-mm × 3-mm (RGT) and has an exposed thermal pad for better thermal performance.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS62152-Q1 Automotive Wide Input, Fixed 3-V Output Voltage, 1-A Step-Down Converter in 3 × 3-mm QFN Package datasheet (Rev. B) | PDF | HTML | 29 Sep 2015 |
| Analog Design Journal | Understanding 100% mode in low-power DC/DC converters | 22 Jun 2018 | ||
| Analog Design Journal | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 24 Oct 2017 | ||
| Analog Design Journal | Testing tips for applying external power to supply outputs without an input voltage | 24 Oct 2016 | ||
| Analog Design Journal | Understanding frequency variation in the DCS-Control(TM) topology | 30 Oct 2015 | ||
| Analog Design Journal | Five steps to a great PCB layout for a step-down converter | 29 Jan 2015 | ||
| Analog Design Journal | High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions | 25 Jul 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| VQFN (RGT) | 16 | View options |
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