ADP2311 Datasheet | Analog Devices

Data Sheet Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring Features Input voltage: 4.5 V to 18 V ±1.0% output accuracy Integrated MOSFET: 110 mΩ/60 mΩ typical Continuous output current: 1 A/1 A Power fail parator generates warning Power-on reset with programmable delay timer Adjustable voltage monitor for power-down (Channel 2) Watchdog refresh input Dual phase with 180° out-of-phase operation Fixed switching frequency: 300 k Hz Internal pensation and soft start Stable with low ESR output ceramic capacitors Precision enable input Power feedback during power-off UVLO, OCP, OVP, and thermal shutdown protection APPLICATIONS Industrial and instrumentation Healthcare and medical DC-to-DC point of load applications GENERAL DESCRIPTION The ADP2311 is a fully integrated, dual output, synchronous step-down dc-to-dc regulator. The regulator operates from input voltages of 4.5 V to 18 V, and the output can regulate down to 0.6 V. Each channel can provide up to 1 A of continuous output current. The ADP2311 integrates the high-side and low-side MOSFETs to provide a very high efficiency, pact solution. Both channels of the regulator run at 180° out of phase to reduce the input ripple current and the input capacitor size, thereby helping to lower system electromagnetic interference (EMI). The ADP2311 also integrates internal pensation and soft start circuitry to simplify the design. 11036-001 TYPICAL APPLICATION CIRCUIT VIN CIN1 RPFI_TOP RPFI_BOT VOUT1 COUT1 C1BST L1 RTOP1 RBOT1 PFO POR WDI RSTO PVIN1 PVIN2 VM2 RVM2_TOP RVM2_BOT VIN CIN2 BST1 ADP2311 BST2 SW1 PGND1 FB1 GND VREG SW2 PGND2 FB2 TIMER C2BST...