ADP5051 Datasheet | Analog Devices

Integrated Power Solution with Quad Buck Regulators, Supervisory Circuit, and I2C Interface Data Sheet Features Wide input voltage range: 4.5 V to 15.0 V ±1.5% output accuracy over full temperature range 250 k Hz to 1.4 MHz adjustable switching frequency Adjustable/fixed output options via factory fuse or I2C interface I2C interface with interrupt on fault conditions Power regulation Channel 1 and Channel 2: programmable 1.2 A/2.5 A/4 A sync buck regulators with low-side FET driver Channel 3 and Channel 4: 1.2 A sync buck regulators Single 8 A output (Channel 1 and Channel 2 in parallel) Dynamic voltage scaling (DVS) for Channel 1 and Channel 4 Precision enable with 0.8 V accurate threshold Active output discharge switch Programmable phase shift in 90° steps Individual channel FPWM/PSM selection Frequency synchronization input or output Optional latch-off protection on OVP/OCP failure Power-good flag on selected channels Low input voltage detection Open-drain processor reset with external adjustable threshold monitoring Watchdog refresh input Manual reset input Overheat detection on junction temperature UVLO, OCP, and TSD protection C1 C0 FB1 PVIN1 TYPICAL APPLICATION CIRCUIT VREG VDD SYNC/MODE RT INT VREG OSCILLATOR 100m A 4.5V TO 15V C2 P1 EN1 SS12 CHANNEL 1 BUCK (4A) VREG BST1 SW1 C3 L1 VOUT1 C4 DL1 PGND DL2 RILIM1 RILIM2 Q1 C5 PVIN2 P2 EN2 Q2 CHANNEL 2 BUCK (4A) VREG SW2 BST2 FB2 C6 L2 VOUT2 C7 PVIN3 C8 P3 EN3 SS34 CHANNEL 3 BUCK (1.2A) BST3 C9 SW3 FB3 PGND3 BST4 L3 VOUT3 C10 PVIN4 C11 P4 EN4 WDI MR CHANNEL 4 BUCK (1.2A) SW4 FB4 PGND4 RSTO WATCHDOG AND RESET VTH C12 L4 VOUT4 C13 VREG VOUTx VDDIO SCL SDA I2C ALERT PWRGD...