3CG708 Datasheet | BLUE ROCKET

Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring Data Sheet 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 VIN CIN1 RPFI_TOP PFI RPFI_BOT C1BST VOUT1 COUT1 L1 RTOP1 RBOT1 SW1 PGND1 FB1 GND VREG SW2 PGND2 FB2 TIMER CTIMER RBOT2 11036-001 ADP2311 TYPICAL APPLICATION CIRCUIT PFO POR WDI EN PVIN1 RSTO PVIN2 RVM2_TOP VM2 RVM2_BOT BST1 CIN2 VIN ADP2311 BST2 C2BST L2 RTOP2 VOUT2 COUT2 CVREG Figure 1. 100 95 90 VOUT = 3.3V VOUT = 5V APPLICATIONS Industrial and instrumentation Healthcare and medical DC-to-DC point of load applications EFFICIENCY (%) 85 80 75 70 65 60 55 0 0.2 0.4 0.6 0.8 1.0 11036-002 Free Datasheet http://.. OUTPUT CURRENT (A) Figure 2. Efficiency vs. Output Current at VIN = 12 V, f SW = 300 k Hz 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. An on-chip watchdog timer...