Datasheet Texas Instruments FX003 — Datenblatt

TPS51219
SLUSAG1B – MARCH 2011 – REVISED OCTOBER 2011 www.ti.com High Performance, Single-Synchronous Step-Down Controller
with Differential Voltage Feedback
FEATURES DESCRIPTION The TPS51219 is a small-sized single buck controller
with adaptive on-time control. It provides a choice of
control modes (D-CAPв„ў or D-CAP2в„ў) to meet a
wide range of system requirements. It is designed for
tight DC regulation requirements such as the VCCIO
application for IntelВ® notebooks. The performance
and flexibility of the TPS51219 makes it suitable for
low output voltage, high current, PC system power
rails and similar point-of-load (POL) power supplies.
Differential voltage feedback and the voltage
compensation function combine to provide high
precision power to load devices. 1 23 Differential Voltage Feedback
DC Compensation for Accurate Regulation
Wide Input Voltage Range: 3 V to 28 V
Output Voltage Range: 0.5 V to 2.0 V with
Fixed Options of 1.05 V and 1.00 V
Wide Output Load Range: 0 A to 20 A+
Adaptive On-Time Modulation with Selectable
Control Architecture and Frequency
– D-CAPв„ў Mode at 300 kHz/400 kHz for Fast …