Analog Devices ADP2360
High Efficiency Buck Regulator
FEATURES
Input voltage supply range: 4.5 V to 60 V Adjustable output voltage range: 0.8 V to VIN Factory-programmable fixed output voltage options of 3.3 V and 5.0 V Continuous output current up to 50 mA Adjustable peak inductor current limit up to 140 mA Pulse frequency modulation (PFM) control Very high efficiency 90% at VIN = 9 V, VOUT = 3.3 V, IOUT = 10 mA 87% at VIN = 9 V, VOUT = 3.3 V, IOUT = 1 mA Low shutdown current: <4 μA Low quiescent current: 12 μA typical in sleep mode 100% duty cycle operation Undervoltage lockout (UVLO) No external compensation required Enable input with precision thresholds Programmable soft start Power-good output Thermal shutdown (TSD) protection 8-lead LFCSP packageAPPLICATIONS
4 mA to 20 mA loop powered systems HART modems Building automation Distributed power systems Industrial control supplies Other high VIN, low IOUT systems 50 mA, 60 V, High Efficiency Buck Regulator ADP2360 VIN CIN PG TYPICAL APPLICATION CIRCUIT ADP2360 8 VIN SW 7 L1 VOUT RPG 2 PG ON OFF 1 EN 5 SS CSS PGND 6 FB 4 ITH 3 AGND (EPAD) 9 RITH COUT 13944-001 Figure 1.