DATASHEET ISL8215M FN8878 Rev.2.00 15A 42V Single-Channel DC/DC Step-Down Power Module Nov 26, 2018 The ISL8215M power module is a single-channel, Features synchronous step-down, non-isolated complete power 15A single-channel complete power supply supply, capable of delivering up to 15A of continuous Integrates controller, MOSFETs, and inductor current. Operating from a single 7V to 42V wide input power rail and integrating the controller, power inductor, 7V to 42V wide input voltage range and MOSFETs, the ISL8215M requires only a few external Adjustable output voltage components to operate and is optimized for space 0.6V to 12V wide output voltage range constrained applications. 40ns on-time low duty cycle conversion capable The ISL8215M is based on a valley current mode PWM 1.5% accuracy over line, load, and temperature control scheme and provides fast transient response and excellent loop stability. It offers an adjustable output Up to 96.5% efficiency voltage range of 0.6V to 12V with better than 1.5% 300kHz to 2MHz adjustable PWM operations accuracy over line, load, and temperature. A 40ns typical External synchronization up to 1MHz minimum on-time and an adjustable operating frequency allow it to support low duty cycle, single-step down Selectable light-load PSM/DEM efficiency mode conversions to point-of-load voltages and its operating Enable pin and power-good flag frequency can also be synchronized with an external clock Programmable soft-start or voltage tracking signal. The ISL8215M implements a selectable Pulse Skipping Mode (PSM) with Diode Emulation Mode (DEM) Complete protection to improve light-load efficiency for battery related UVLO, programmable overcurrent, overvoltage, and applications. A programmable soft-start reduces the inrush over-temperature current from the input supply while a dedicated enable pin Prebias output start-up and power-good flag allow for easy system power rails sequencing with voltage tracking capability. Excellent 19mmx13mmx5.3mm HDA package efficiency and low thermal resistance permit full power Applications operation without heatsinks. Industrial and medical equipment Input Undervoltage Lockout (UVLO), over-temperature, programmable overcurrent, output overvoltage, and output Aftermarket automotive prebias start-up protections ensure safe operations under Telecom and datacom equipment abnormal operating conditions. Related Literature The ISL8215M is available in a compact RoHS compliant For a full list of related documents, visit our website: thermally-enhanced 19mmx13mmx5.3mm HDA package. ISL8215M product page 270pF 4.02 ISL8215M 100 20 VIN1 PH 95 7V to 42V Input 5V 15A Output VIN VOUT 90 2 CIN C OUT RS 85 ENABLE EN 80 POWER GOOD PGOOD 75 VCC 70 MOD/SYNC VOUT1 65 3.3Vout, 300kHz 60 RT FB 5Vout, 300kHz 55 SS/TRK OCS 12Vout, 600kHz 50 5.9k SGND PGND 10F 1F 205k 01234567 89 101112131415 Load C urrent (A) Figure 2. V = 24V IN Figure 1. Typical Application Circuit FN8878 Rev.2.00 Page 1 of 42 Nov 26, 2018 Efficiency (%)ISL8215M Contents 1. Overview . 4 1.1 Typical Application Circuits 4 1.2 Block Diagram 6 1.3 Ordering Information . 7 1.4 Pin Configuration 7 1.5 Pin Descriptions . 7 2. Specifications 10 2.1 Absolute Maximum Ratings . 10 2.2 Thermal Information . 10 2.3 Recommended Operating Conditions . 10 2.4 Electrical Specifications 11 3. Typical Performance Curves 14 3.1 Efficiency Performance 14 3.2 Output Voltage Ripple . 15 3.3 Load Transient Response Performance . 16 3.4 Start-Up Waveforms . 17 3.5 Derating 18 4. Functional Description 19 4.1 Power-Good Indicator . 19 4.2 Self-Enable Operation . 19 4.3 Enable . 20 4.4 Prebiased Power-Up 20 4.5 PWM/CCM Mode . 20 4.6 PSM/DEM Light-Load Efficiency Mode 20 4.7 Internal 5V Linear Regulator (VCC) . 20 4.8 Gate Control Logic Optimization . 20 5. Application Information 21 5.1 Output Voltage Programming . 21 5.2 Switching Frequency Selection 21 5.3 External Frequency Synchronization 22 5.4 Soft-Start Operation . 22 5.5 Tracking Operation . 23 5.6 Input Voltage Range 25 5.7 Input Capacitor Selection . 25 5.8 Output Capacitor Selection . 25 6. Protection Circuits 27 6.1 Undervoltage Lockout (UVLO) . 27 6.2 Overcurrent Protection . 27 FN8878 Rev.2.00 Page 2 of 42 Nov 26, 2018