ADP2389
FEATURES
Input voltage: 4.5 V to 18 V Continuous output current: 12 A Integrated MOSFETs: 17 mΩ high-side/4.5 mΩ low-side 0.6 V ± 0.5% reference voltage Programmable switching frequency range: 200 k Hz to 2200 k Hz Enhanced transient response Programmable current limit with ±10% accuracy Precision enable and power good External pensation and soft start PFM mode (ADP2390 only) Start up into a precharged output Supported by the ADIsim Power design tool
APPLICATIONS munication infrastructure Networking and servers Industrial and instrumentation Healthcare and medical Intermediate power rail conversions DC-to-DC point of load applications
TYPICAL APPLICATIONS CIRCUIT
VIN CIN
RFTW RILIM RT CVREG
VIN PVIN EN
PGOOD
BST SW
ADP2389/ ADP2390
FTW ILIM RT VREG
SS PGND
CBST L
VOUT COUT
RTOP RBOT RC
CSS CC
Figure 1.
GENERAL DESCRIPTION
The ADP2389/ADP2390 are current mode control, synchronous step-down, dc-to-dc regulators. They integrate a 17 mΩ high-side power MOSFET and a 4.5...
