TPS56921PWPR ,4.5V to 17V Input, 9A Synchronous Step-Down Converter with VID Control 20-HTSSOP -40 to 125FEATURES • Overcurrent Protection for Both MOSFETs2 with Hiccup Mode for Severe Fault Conditions• V ..
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TPS56921PWPR
4.5V to 17V Input, 9A Synchronous Step-Down SWIFT?Converter with VID Control
TPS56921
www.ti.com SLVSBL4–OCTOBER 2012
4.5V to 17V Input, 9A Synchronous Step Down SWIFT™ Converter With VID Controllow-side MOSFETs. After the initial power-up, the output voltage canbe changedby codes sentto theIC2C compatible VID Control bus. Current mode control provides space savings easy compensation.
The output voltage controlledby the SS pin which helps startup inrush current.
sequencingis the enable and the open drain good pins. The output voltage
user-configurable voltage divider.
Cycleby cycle high-side fet protects the TPS56921 situations andis enhanceda low-side which prevents current runaway. Therea low-side sinking current
which turnsoffto prevent excessive reverse current. protection will be triggered for longer than the preset time. hiccup protection disables thermal shutdown temperature and the part again after the
