Packaging information
| Package | Pins VQFN-HR (RPJ) | 9 |
| Operating temperature range (°C) -40 to 165 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TPS62902
- High efficiency for wide duty cycle and load range
- I Q: 4 µA typical
- Selectable switching frequency of 2.5 MHz and 1.0 MHz
- R DS(ON): 62-mΩ high side, 22-mΩ low side
- Automatic efficiency enhancement (AEE)
- Small 1.5-mm × 2.0-mm VQFN package with 0.5-mm pitch
- Up to 2-A continuous output current
- ±0.9% feedback voltage accuracy across temp (-40°C to 150°C)
- Configurable ouput voltage options:
- V FB external divider: 0.6 V to 5.5 V
- V SET internal divider: 16 options between 0.4 V and 5.5 V
- DCS-Control™ topology with 100% mode
- Highly flexible and easy to use
- Optimized pinout for single-layer routing
- Precise enable input
- Forced PWM or auto power save mode
- Power good output
- Selectable active output discharge
- Adjustable soft start and tracking
- No external bootstrap capacitor required
- Create a custom design using the TPS62902 using the WEBENCH Power Designer
Description for the TPS62902
The TPS62902 is a highly-efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high V OUT accuracy of ± 1% with DCS-Control topology. The wide input voltage range of 3-V to 17-V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.
The TPS62902 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across V IN, V OUT, and load current. The device includes a S-CONF/MODE input to set the internal/external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.
The device is available in small 9-pin VQFN package measuring 1.50 mm × 2.00 mm with 0.5-mm pitch.