Datasheet ADP5014 (Analog Devices) - 9

Data Sheet ADP5014 Pin No. Mnemonic Description
30, 31 PVIN1 Power Input for Channel 1. 32 COMP1 Error Amplifier Output for Channel 1. Connect an RC network from this pin to ground. 33 FB1 Feedback Sensing Input for Channel 1. 34 AVIN Analog Power Input for the Internal Control Circuitry. Connect a bypass capacitor between this pin and ground. Connect a small (10 Ω) resistor between this pin and PVINx. 35 RT Frequency Setting. Connect a resistor from RT to ground to program the switching frequency. 36 VSET1 Channel 1 Reference Voltage Setting Input. 37 VSET2 Channel 2 Reference Voltage Setting Input. 38 VREF Internal Low Noise Voltage Reference Output. 39 VSET3 Channel 3 Reference Voltage Setting Input. 40 VSET4 Channel 4 Reference Voltage Setting Input. Exposed Pad Analog Ground. The exposed pad must be connected and soldered to an external ground plane. Rev. 0 | Page 9 of 34 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY DETAILED FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS BUCK REGULATOR SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATIONAL MODES PWM Mode PSM Mode FPWM and Automatic PWM/PSM Modes LOW NOISE ARCHITECTURE INTERNAL REFERENCE (VREF) ADJUSTABLE OUTPUT VOLTAGE FUNCTION CONFIGURATIONS (CFG1 AND CFG2) PARALLEL OPERATION MANUAL/SEQUENCE MODE Manual Mode (Precision Enable) Sequence Mode GENERAL PURPOSE INPUT/OUTPUT (GPIO) OSCILLATOR Phase Shift SYNCHRONIZATION INPUT/OUTPUT POWER-GOOD FUNCTION UV COMPARATOR (SEQUENCE MODE ONLY) SOFT START STARTUP WITH PRECHARGED OUTPUT CURRENT-LIMIT PROTECTION FREQUENCY FOLD BACK SHORT-CIRCUIT PROTECTION (SCP) OVERVOLTAGE PROTECTION UNDERVOLTAGE LOCKOUT ACTIVE OUTPUT DISCHARGE SWITCH THERMAL SHUTDOWN APPLICATIONS INFORMATION ADIsimPOWER DESIGN TOOL PROGRAMMING THE OUTPUT VOLTAGE VOLTAGE CONVERSION LIMITATIONS CURRENT-LIMIT SETTING SOFT START SETTING INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION INPUT CAPACITOR SELECTION PROGRAMMING THE UVLO INPUT COMPENSATION COMPONENTS DESIGN POWER DISSIPATION Buck Regulator Power Dissipation Power Switch Conduction Loss (PCOND) Switching Loss (PSW) Transition Loss (PTRAN) Thermal Shutdown JUNCTION TEMPERATURE DESIGN EXAMPLES SETTING THE SWITCHING FREQUENCY SETTING THE OUTPUT VOLTAGE SETTING THE CONFIGUATIONS (CFG1 AND CFG2) SELECTING THE INDUCTOR SELECTING THE OUTPUT CAPACITOR DESIGNING THE COMPENSATION NETWORK PCB LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS FACTORY DEFAULT OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE