TPS62903, 3-V to 17-V, High Efficiency and Low IQ Buck Converter in 1.5-mm × 2-mm QFN Package

1 Features

High efficiency for wide duty cycle and load range
- I_Q: 4-µA typical
- Selectable switching frequency: 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 3-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 TPS62903 using the WEBENCH® Power Designer