DATASHEET ISL9113 FN8313 Rev 3.00 Low Input Voltage and High Efficiency Synchronous Boost Converter with 1.3A February 23, 2015 Switch The ISL9113 provides a power supply solution for devices Features powered by three-cell alkaline, NiCd, NiMH or one-cell Up to 95% efficiency at typical operating conditions Li-Ion/Li-Polymer batteries. It offers either a fixed 5V or an adjustable output option for USB-OTG or portable HDMI Input voltage range: 0.8V to 4.7V applications. The device is guaranteed to supply 500mA from Output current: Up to 500mA (V = 3.0V, V = 5.0V) BAT OUT a 3V input and 5V output and has a typical 1.3A peak current Low quiescent current: 20A (typical) limit. High 1.8MHz switching frequency allows for the use of tiny, low-profile inductors and ceramic capacitors to minimize Logic control shutdown (I < 1A) Q the size of the overall solution. Fixed 5V, 5.1V or adjustable output The ISL9113 is an internally compensated, fully integrated 1.2V EN high logic synchronous converter optimized for efficiency with minimal Output disconnect during shutdown external components. At light load, the device enters skip mode and consumes only 20A of quiescent current, resulting Skip mode under light load condition in higher efficiency at light loads and maximum battery life. Undervoltage lockout The device is available in an 8 Ld DFN package and a 6 bump Fault protection: OVP (ADJ version only), OTP, short circuit WLCSP. 8 Ld 2mmx2mm DFN package and 6 bump 0.8mmx1.36mm WLCSP Related Literature Applications AN1816, ISL9113ERAZ-EVZ, ISL9113ER7Z-EVZ Evaluation Board User Guide Products including portable HDMI and USB-OTG Smartphones Tablet and mobile internet devices 100 V = 4.2V BAT V = 3.6V 95 BAT V = 3.0V BAT 2.2H 90 85 8 V = OUT 80 5V/500mA SW 2 V BAT = V OUT 75 0.8V TO 4.7V 7 V 3 BAT V = 2.3V 70 BAT NC V = 1.2V BAT 4.7F 4.7F 5 65 EN 1 PGND 60 V 1k FAULT 4 6 FAULT AGND 55 V = 5.0V OUT 50 0.0001 0.001 0.01 0.1 1 LOAD CURRENT (A) FIGURE 1. TYPICAL APPLICATION (ISL9113ER7Z) FIGURE 2. FIXED 5V EFFICIENCY (ISL9113ER7Z) FN8313 Rev 3.00 Page 1 of 15 February 23, 2015 EFFICIENCY (%)ISL9113 Block Diagrams ISL9113ER7Z C1 V V OUT BAT C2 7 2 V INT VOLTAGE UVLO SELECTOR START-UP N-WELL SWITCH SW L1 GATE DRIVER 8 V OUT OVP AND ANTI-CROSS CONDUCTION SW ZCD V OUT 4 CURRENT FAULT SENSE CONTROL LOGIC DIGITAL V OUT AND SOFT-START CURRENT SLOPE COMP LIMIT FAULT EN MONITORING 5 g m OFF ON VOLTAGE CLAMP 1.8MHz THERMAL REFERENCE GENERATOR OSCILLATOR SHUTDOWN 1 6 FN8313 Rev 3.00 Page 2 of 15 February 23, 2015 V INT