TPS54331 3-A 28-V Step-Down DC-DC Converter
3-A, 28-V input non-synchronous buck converter with integrated 80-mOhm high-side MOSFET, fixed 570-kHz switching, Eco-mode pulse skipping, and adjustable slow-start.
Aliase:TPS54331D, TPS54331DR, TPS54331DDA
SOIC-8 Top View
8 Pins
Pinout Table8
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | BOOT | Digital | Bootstrap capacitor connection (0.1 uF to PH) |
| 2 | VIN | Power | 3.5 V to 28 V input supply |
| 3 | EN | Digital | Enable, low below 1.25 V; float to enable |
| 4 | SS | Digital | Slow-start capacitor sets output rise time |
| 5 | VSENSE | Digital | Inverting input of gm error amplifier |
| 6 | COMP | Digital | Error amplifier output, PWM comparator input |
| 7 | GND | Ground | Ground |
| 8 | PH | Digital | Source of internal high-side power MOSFET |