ADP2381

Data Sheet FEATURES Input voltage: 4.5 V to 20 V Integrated 44 mΩ high-side MOSFET 0.6 V ± 1% reference voltage over temperature Continuous output current: 6 A Programmable switching frequency: 250 kHz to 1.4 MHz Synchronizes to external clock: 250 kHz to 1.4 MHz 180° out-of-phase synchronization Programmable UVLO Power-good output External compensation Internal soft start with external adjustable option Startup into a precharged output Supported by ADIsimPower design tool 20 V, 6 A Synchronous Step-Down Regulator with Low-Side Driver ADP2381 TYPICAL APPLICATIONS CIRCUIT VIN CIN 1 2 3 4 5 ROSC 6 7 CSS 8 PVIN PVIN UVLO BST SW 16 15 14 13 12 11 10 9 RBOT CC_EA RC_EA 10209-001 CBST L VOUT COUT ADP2381 SW LD VREG PGND GND FB FET CVREG PGOOD RT SYNC EN/SS COMP RTOP CCP_EA APPLICATIONS Communication infrastructure Networking and servers Industrial and instrumentation Healthcare and medical Intermediate power rail conversion DC-to-dc point of load application 100 95 90 85 EFFICIENCY (%) Figure 1. 80 75 70 65 60 55 50 0 1 2 3 4 5 6 OUTPUT CURRENT (A) VOUT = 3.3V VOUT = 5V VOUT = 1.2V 10209-002 Free Datasheet http://www.Datasheet4U.com Figure 2. ADP2381 Efficiency vs. Output Current, VIN = 12 V, fSW = 250 kHz GENERAL DESCRIPTION The ADP2381 is a current mode control, synchronous, stepdown, dc-to-dc regulator. It integrates a 44 mΩ power MOSFET and a low-side driver to provide a high efficiency solution. The ADP2381 runs from an input voltage of 4.5 V to 20 V and can del...