G2118 Global Mixed-mode Technology Sync. Rectifier Step Up Converter Features General Description Up to 92% Efficiency at V = 5V from 3.3V Input The G2118is a compact, high-efficiency, synchronous OUT Low Quiescent Current 100A step-up converter with power Mosfets embedded and Guaranteed 3A Output Current at V = 5V with output turn off true shutdown function and ad- OUT from 3.3V Input justable output current limiting with foldback for a sin- 520KHz PWM Switching Frequency gle-cell Li-ion/polymer battery. The G2118 uses only Synchronous and Embedded Power Mosfets 100 A (typ) quiescent current and allows the converter No Schottky Diode Required to switch only when needed at no load and light loads, Internal Soft-Start to Limit Inrush Current and when load is higher than 100mA, it uses Adjustable Output fixed-frequency PWM technique at 500KHz. It features Output turn off true shutdown function a current mode control for fast transient response with Current Mode Operation with Internal Com- internal compensation. The G2118 includes cy- pensation for Excellent Line and Load Transi- cle-by-cycle current limit to maximum inductor current ent Response and over-temperature protection circuit. The G2118 is Overload/Short-Circuit Protection with hiccup suitable for iPad-like computers, smart phones and control portable handheld devices. Shutdown Current <20A The G2118 is available in a SOP-8 (FD) and Thermal Shutdown TSSOP-20 (FD) . The operating temperature range is Available in SOP-8 (FD) , TSSOP-20 (FD) from -40C to +85C. Application iPad-like computers, smart phones and porta- ble handheld devices. Ordering Information ORDER TEMP. PACKAGE MARKING NUMBER RANGE (Green) G2118F11U G2118 -40C to +85C SOP-8 (FD) G2118F21U G2118 -40C to +85C TSSOP-20 (FD) Note: F1:SOP-8 (FD), F2:TSSOP-20 (FD), 1: Bonding Code U: Tape & Reel Green : Lead Free / Halogen Free. Pin Configuration Typical Application Circuit GG22118118 GG21121188 G2118G2118 PGPGNNDD 11 2020 PGPGNDND 2.22.2HH VV =5=5VV//3A3A 3~3~4.24.2VV OUOUTT LXLX 22 1919 VOUTVOUT LXLX VOUTVOUT 88 VOUVOUTT LXLX 11 CC LXLX 33 1818 VOVOUTUT CC RR OUOUTT ININ batbat R1R1 TheTherrmmaall LXLX 44 1717 VOUTVOUT 0~0~55 6868F+F+00..11FF 4747FF LXLX 22 77 VOVOUUTT ThTheerrmmaall CC :1:10p0pF~F~3300ppFF CC PaPadd LXLX VOUVOUTT VBATVBAT 55 1616 PadPad FBFB CC VVBATBAT 66 1515 VOVOUTUT babatt FBFB VBAVBATT 33 66 11FF PGNDPGND ILMILM0011 77 1414 FBFB PGNPGNDD R2R2 ILILMM0011 GNGNDD 88 1313 GNGNDD 44 55 GNGNDD ILILMM0011 GNDGND GNGNDD 99 1212 GNGNDD GNGNDD 1010 1111 GNGNDD SOP-SOP-8 (8 (FFDD)) GGND&PGNND&PGNDD TTSSOSSOP-P-20 (20 (FFD)D) NNoottee:: R Reeccoommmmeendnd c coonnenneccttiioon tn thhee T Thherermmaall P Paadd t too t thhe Pe PGGNNDD f foor er exxcceelllleentnt p poowewer dr diissssiipapattiionon.. VOUVOUTT==VVRREEF*(F*(11+R1+R1//R2R2), w), whherere Ve VRREFEF ty typicpicaall i iss 1 1..2323VV Ver: 0.2 Jul 25, 2016 1 G2118 Global Mixed-mode Technology Absolute Maximum Ratings VOUT to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V Continuous Power Dissipation (T = +25C) A LX to GND . . . . . . . . . . . . . . . . .. .-0.3V to 8.5V<10nS SOP-8 (FD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9W ILM01 to GND . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V TSSOP-20 (FD). . . . . . . . . . . . . . . . . . . . . . . . 2.1W OC to GND . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V FB to GND . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 6V Storage Temperature . . . . . . . . . . . . . . . . . -55~150C VBAT to GND . . . . . . . . . . . . . . . . . . . . . . .-0.3V to 6V Operation Temperature. . . . . . . . . . . . . . . . . -40~85C Thermal Resistance of Junction to Ambient ( ) JA SOP-8 (FD) . . . . . . . . . . . . . . . . . . . . . . . . . 132C/W TSSOP-20 (FD). . . . . . . . . . . . . . . . . . . . . . . . .60C/W Electrical Characteristics (V = 5V, V = 3.6V, L = 2.2H, C = 47F, C = 68F+0.1F, T = 25C) OUT BAT IN OUT A The device is not guaranteed to function outside its operating conditions. Parameters with MIN and/or MAX limits are 100% tested at +25C, unless otherwise specified. DESCRIPTION PARAMETER CONDITIONS MIN TYP MAX UNITS General Input operation voltage V 2.7 --- 4.5 V BAT Iload=3A Vbat=3.3V Output voltage V --- --- 5.3 V OUT V =3.6 FB>1.25 No load, no switching BAT Input Quiescent current I --- 100 150 A BAT (exclude input current from ILM0&ILM1 ) Shutdown supply current I ILM01=0 --- 10 20u A BAT Oscillator& Protection Switching Frequency Fosc 360 520 680 KHz Soft-Start Interval SS --- 4 --- ms FB Regulation Voltage V 1.208 1.227 1.246 V FB FB Input Current I FB=1.23V --- --- 100 nA FB OC De-Glitch T deglitch OC flag from 1 to 0 --- 4 --- ms T precharge+ Startup into a short-Circuit OC flag from 1 to 0 --- 10 --- ms T deglitch Restart time in SCP T scp restart OC flag keep 0 --- 64 --- ms Current Limit Response Time T oc response --- Tosc --- s Maximum Duty Cycle D FB=1.2V 82 86 92 % max DC-DC Switches VOUT Leakage Current I ILM01=0 ,V=5V --- 1 5 A PVOUT LK OUT LX Leakage Current I ILM01=0 V=5V --- 1 5 A LX LK OUT R -N --- 30 --- ON Switch ON Resistance m R-P --- 40 --- ON Peak Current Limit I LIM ILM01=1 at V =4.2V 5 --- --- BAT A ILM01=1 at V=3V 7 --- --- BAT ILM01=1, V =3.3V, V =5V, I =3A Efficiency BAT OUT OUT --- 92 --- % Protection Block VOUT Short-Circuit V OUT V Falling Edge --- --- V SCP Threshold (1-0.25) VOUT Short-Circuit V OUT V Ring Edge --- --- V SCP Threshold (1-0.9) VBAT UVLO Threshold V Falling Edge -- 2.58 -- V UVLO VBAT UVLO Threshold V Rling Edge -- 2.66 -- V UVLO Thermal Shutdown Threshold Rising Edge, 10C hysteresis --- 145 --- C Control Block ILM01 Input High Level Vih ilm 1.5 --- 5.5 V ILM01 Input Low Level Vil ilm 0 --- 0.5 V ILM01 Internal Pull-Low Rin ilm 440 550 660 K Resistance Ver: 0.2 Jul 25, 2016 2