Data SheetADP5138ABSOLUTE MAXIMUM RATINGS Table 4.THERMAL RESISTANCEParameterRating Thermal performance is directly linked to printed circuit board PVIN1, PVIN2, PVIN3, PVIN4, PVIN5, AVIN, −0.3 V to +6 V (PCB) design and operating environment. VOUT5 Careful attention to PCB thermal design is required. SW1, SW2, SW3, SW4 −0.3 V to +6 V FB1, FB2, FB3, FB4, FB5, EN1, EN2, EN3, EN4, −0.3 V to +6 V Table 5. Thermal Resistance EN5, POR, SYNC Package Typeθ 1JAθJCUnit PGND1, PGND2, PGND3, PGND4 to GND −0.3 V to +0.3 V CP-28-5 32.6 1.4 °C/W Operating Temperature Range (Junction) −40°C to +125°C Storage Temperature Range −65°C to +150°C 1 θJA is measured using natural convection on a JEDEC 4-layer board with the Soldering Conditions JEDEC J-STD-020 exposed pad soldered to the PCB and with thermal vias. Electrostatic Discharge (ESD) Human Body Model 2000 V ESD CAUTION Charged Device Model 500 V Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. Rev. A | Page 7 of 23 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Buck Regulator Specifications LDO Regulator Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable and Shutdown Oscillator and Phase Shift Synchronization Input Overvoltage Lockout (OVLO) Input Undervoltage Monitor (UVM) Input Undervoltage Lockout (UVLO) Output Voltage Power-Good Power-On Reset (POR) Soft Start and Power-Up Sequence Current-Limit and Short-Circuit Protection Active Output Discharge Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Factory-Programmable Options Outline Dimensions Ordering Guide Automotive Products