SK6110CA33M5R

SK 6110C Synchronous Step-Up DC-DC Converter with PFM Control Description Features The SK6110C Series is a Synchronous  External parts: Coil, capacitor step-up DC/DC Converter with PFM Control.  Output voltage: Settable to between 2.1V to 5.5V in 0.1V steps With the SK6110C Series, a step-up switching  DC/DC converter can be configured by using Maximum Oscillation frequency :300KHz an external coil 、 capacitor. The built-in MOSFET is turned off by a protection circuit  Accuracy of ±2% when the voltage at the LX pin exceeds the  High efficiency :95% limit to prevent it from being damaged.  Package: SOT23,SOT23-3,SOT23-5,SOT89 Applications and TO92  Digital cameras  Electronic notebooks and PDAS  Portable CD/MD players  Cameras , video equipment  Communications equipment  Power supply for microcomputers Block Diagram Ordering Information SK6110C①②③④⑤ Designator Symbol ① A B ②③ Integer ④ ⑤ 上海洺太电子科技有限公司 T P M M5 N R G Description Standard Another pin definition Output Voltage (2.1~5.5) e.g:3.0V=②：3；③：0 Package:TO-92 Package:SOT89 Package:SOT23-3 Package:SOT23-5 Package:SOT23 RoHS / Pb Free Halogen Free -1- SUNTEK MICRO LTD Pin Assignment Table1 SK6110C A series (SOT23/SOT23-3 PKG) PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 GND GND pin 3 LX External inductor connection pin Table2 SK6110CA series (SOT23-5 PKG) PIN NO. PIN NAME FUNCTION 1 EN Shutdown pin “H”: Normal operation “L”: Step-up stopped 2 VOUT Output voltage pin 3 NC (N.C.) 4 GND GND pin 5 LX External inductor connection pin Table3 SK6110C A series (SOT89 PKG) PIN NO. PIN NAME FUNCTION 1 GND GND pin 2 VOUT Output voltage pin 3 LX External inductor connection pin Table4 SK6110C A series (TO92 PKG) PIN NO. PIN NAME FUNCTION 1 GND GND pin 2 VOUT Output voltage pin 3 LX External inductor connection pin Table 5 SK6110CB series (TO92PKG and SOT23PKG) 上海洺太电子科技有限公司 PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 GND GND pin 3 LX External inductor connection pin -2- SUNTEK MICRO LTD Marking Rule ① product code: B stand for normal pin definition C stand for different pin definition ② product code: 1 ③ output voltage code: Voltage Symbol Voltage Symbol Voltage Symbol (V) (V) (V) a b c d e f g h i j k l m 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 A B C D E F G H I J K L M 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 n o P q r s t u v w x y z 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 Symbol Voltage (V) N O P Q R S T U V W X Y Z 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 ④⑤: The last two of them are based on the time of this product which is the first time into production, the forth is the year of this product first time into production, such as expressed in "5" in 2015, in "6" in 2016 and the fifth is the mouth of this product first time into production, it can be in 1 ~ 9 , which is expressed in "0" in October, in November with an "A", 上海洺太电子科技有限公司 in December with "B". -3- SUNTEK MICRO LTD Absolute Maximum Ratings (Unless otherwise specified, Ta=25℃) PARAMETER SYMBOL RATINGS UNITS VOUT Pin Voltage VOUT VSS-0.3~VSS+8 V EN Pin Voltage EN VSS-0.3~VSS+8 V LX Pin Voltage VLX VSS-0.3~VSS+8 V LX Pin Current ILX 1000 mA 250 mW 250 mW 500 mW 500 mW SOT23 Power SOT23-3/SOT23-5 Dissipation SOT-89-3 PD TO-92 Operating Temperature TOPR -40~+85 ℃ Storage Temperature TSTG -40~+125 ℃ Soldering Temperature & Time TSOLDER 260℃，10s Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Electrical Characteristics ( Unless otherwise specified，Ta = 25℃) PARAMETER SYMBOL Output Voltage VOUT Input Voltage VIN - - Operation Start Voltage VST1 - Operation Start Voltage VST2 Input Current At No Load ISS1 Current Consumption 2 Current Consumption During Shutdown Maximum Oscillation Frequency MIN UNITS CONDITION V - 7.5 V - - 0.9 V IOUT=1mA，VOUT=2.2V~4.2V - - 1.2 V IOUT=1mA，VOUT=4.2V~5.5V - 15 25 uA VIN=1.8V, VOUT=3.0V - 25 35 uA VIN=0.9V, VOUT=3.0V ISS2 - 6 10 uA VOUT=VOUT(s) +0.5V ISSS - - 1.0 uA VEN=0V VOUT(S) X0.98 fosc Duty Ratio Duty Efficiency EFFI TYP VOUT MAX VOUT(S) X1.02 300 70 78 KHz 85 90 % VOUT=0.95xVOUT(s) , measure Waveform at LX pin VOUT=0.95xVOUT(s) % VOUT=0.95xVOUT(s) , judge VSH 0.75 - - V VSL - - 0.3 V Shutdown Pin input ISH -0.1 - 0.1 uA VEN=6V Current ISL -0.1 - 0.1 uA VEN=0V Shutdown Pin Input Voltage Oscillation at LX pin VOUT=0.95xVOUT(s) , judge stop at LX pin Remark: VOUT(S) specified above is the set output voltage value,and VOUT is the typical value of the actual output voltage 上海洺太电子科技有限公司 -4- SUNTEK MICRO LTD Application Circuits 1) SK6110C without CE 2) SK6110C with CE Note: External Component Recommendation: 1) L=47uH(Sumida) 2) CF=100uF/16V(Tantalum) 上海洺太电子科技有限公司 -5- SUNTEK MICRO LTD TYPICAL PERFORMANCE CHARACTERISTICS (Cin=Cout=100uF,L=47uH) 上海洺太电子科技有限公司 -6- SUNTEK MICRO LTD Package Information 3-pin SOT23 Outline Dimensions 上海洺太电子科技有限公司 -7- SUNTEK MICRO LTD 3-pin SOT23-3 Outline Dimensions 上海洺太电子科技有限公司 -8- SUNTEK MICRO LTD 5-pin SOT23-5L Outline Dimensions 上海洺太电子科技有限公司 -9- SUNTEK MICRO LTD 3-pin SOT89-3 Outline Dimensions 上海洺太电子科技有限公司 - 10 - SUNTEK MICRO LTD 3-pin TO92 Outline Dimensions 上海洺太电子科技有限公司 - 11 - SUNTEK MICRO LTD