2015 Q1 Power Supply Selection Guide Company Profile Who We Are Founded in 2001, Union Semiconductor is a fabless integrated circuit design company, engaged in inventing, designing and marketing high performance linear and mixed-signal integrated circuits (ICs) for use in a variety of electronic equipment. Union Semiconductor’s products bridge the analog real world and digital world by detecting, measuring, amplifying, converting power supply and providing protection for electronic circuits. Corporate Mission Union Semiconductor’s mission is to continuously develop high quality and innovative mixed signal IC solutions that add value to customers’ electronics equipment worldwide. Products and Applications Our products include power supplies, power management circuits, analog switches, interface circuits, ESD protection ICs and EMI filters. Union Semiconductor markets over 180 analog ICs for uses in a wide variety of electronic equipment. These include PCs and their peripherals, portable devices, instrumentation, test equipments and digital consumer electronics. Contact Us Union Semiconductor, Incorporated. Add: Room 606, No. 570 Shengxia Road, Zhangjiang Hi-Tech Park, Shanghai Zip Code: 201210 Tel: 86-21-51093966 Fax: 86-21-51026018 Website: www.union-ic.com www.union-ic.com Union Semiconductor Table of Contents Power Supply Linear Regulators ········································································································································1-4 Single Channel ≤350mA Output Current LDOs ····························································································1 Dual Channel 300mA Output Current LDOs ···································································································1 Single Channel 500mA Output Current LDOs ·································································································1 High Input Voltage LDOs ·································································································································1 Ultra Low Input Voltage LDOs ·························································································································1 Ultra Low Quiescent Current LDOs ·················································································································1 Low Output Noise LDOs ·································································································································1 Switching Regulators ·······································································································································5-7 DC-DC Buck Converters ·································································································································5 DC-DC Boost Converters ·······························································································································5 LED Backlight Boost Drivers ··························································································································5 LED Lighting Buck Drivers ·····························································································································5 Appendix Sales Contact ···················································································································································8 www.union-ic.com Union Semiconductor Product Selection Guide Linear Regulators (LDOs) Part Features Number VIN (V) VIN (V) (Min) (Max) 2.5 5.5 VOUT (V) IOUT Iq (μA) VDROP (mV) (mA) @ VIN_MAX @ IO (Max) (Max) (Typ) Note2 150 10 155 @ 150mA 300 120 90 @ 150mA 300 55 200 @ 100mA 350 90 150 @ 150mA SOT23-3 300 120 90 @ 150mA SOT23-5 300 55 200 @ 100mA 300 120 90 @ 150mA 350 90 150 @ 150mA Package 150mA CMOS Linear Regulator with EN Control *UM3730 Output Auto Discharge 1.0V to 3.3V with 0.1V Interval DFN4 1.0×1.0 SOT353 300mA/350mA CMOS Linear Regulators without EN Control UM165xx UM365xx UM1650 Ultra Low Dropout, Input Under Voltage Lockout Standard Low Dropout 350mA, Ultra Low Dropout, Input Under Voltage Lockout 2.5 2.5 2.5 6.0 6.0 6.0 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 Note1 1.2V to 5.0V with 0.1V Interval Fixed 1.0V to 4.0V with 0.1V Interval SOT23-3 SOT23-3 SOT323 300mA/350mA CMOS Linear Regulators with EN Control UM175xx UM375xx Ultra Low Dropout, EN Control, Input Under Voltage Lockout Standard Low Dropout EN Control 2.5 6.0 2.0 6.0 2.5 6.0 Ultra Low Dropout, EN Control, *UM185xx Input Under Voltage Lockout, Reverse Current Protection Input Under Voltage Lockout, 1.2V to 5.0V with 0.1V Interval 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 Note1 Fixed 1.0V to 4.0V 350mA, Ultra Low Dropout, UM1750 2.8/3.3 Note1 2.5 6.0 Excellent Load Transient with 0.1V Interval, or Adjustable Output SOT23-5 SOT353 SOT23-5 DFN6 2.0×2.0 SOT89-5 SOT23-5 from 1.0V to 5.0V 500mA CMOS Linear Regulator Fixed 1.0V to 4.0V 500mA Output Current, UM1770 Ultra Low Dropout, 2.5 6.0 Input Under Voltage Lockout with 0.1V Interval, or Adjustable Output 500 120 450 @ 500mA 300 120 200 @ 100mA DFN6 2.0×2.0 SOT89-5 from 1.0V to 5.0V Dual Channel 300mA CMOS Linear Regulator UM4750 Dual Channel Separate EN Control 2.5 5.5 1.2//1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 Note1 SOT23-6 DFN8 3.0×3.0 DFN6 2.0×2.0 High Input Voltage Linear Regulators UM142xx UM1430 UM1440 12V Input Voltage 18V Input Voltage 18V Input Voltage with EN Control 2.5 12.0 3.6 18.0 3.6 18.0 2.2 5.5 2.5V to 5.0V with 0.1V Interval 2.0V to 6.0V with 0.1V Interval 2.0V to 6.0V with 0.1V Interval 300 9 300 @ 150mA 30 4.8 300 @ 30mA 30 4.8 300 @ 30mA 0.8 130 @ 30mA SOT23-3 SOT89-3 SOT23-3 SOT23-5, SOT89-3 SOT23-5 SOT89-5 Ultra Low Quiescent Current Linear Regulators UM153xx UM154xx *UM1550 Ultra Low Iq Ultra Low Iq with EN Control Wide Input Voltage Range, Ultra Low Iq 2.2 5.5 1.8 8.0 1.2//1.5/1.8/2.5/2.8/ 200 @ 3.0/3.3/3.5 Note1 VIN≥3.5V 1.2//1.5/1.8/2.5/2.8/ 200 @ 3.0/3.3/3.5 Note1 VIN≥3.5V 1.2V to 5.0V with 0.1V Interval 0.8 130 @ 30mA 1.0 200 @ 100mA SOT23-3, SOT89-3 DFN4 1.8×1.2 SOT23-5, SOT89-5 DFN6 2.0×2.0 DFN6 2.0×2.0 250 SOT23-3, SOT23-5 SOT89-3 Ultra Low Input Voltage Linear Regulator *UM1230 1.4V Input Voltage 1.4 5.25 2.7 5.5 0.8V to 3.6V with 0.1V Interval 300 50 150 45 290 @ 300mA， DFN4 1.0×1.0 VOUT>3.0V SOT23-5, SOT353 Low Output Noise Linear Regulator UM1330 150mA Output Current, 40μVrms Low Noise 1.5V to 3.3V with 0.1V Interval SOT23-5 140 @ 150mA SOT353 DFN6 2.0×2.0 Note1: Besides the standard output voltages listed in the table, customized output Voltage is also available from 1.2V to 5.0V at step of 100mV. Contact factory for product availability. Note2: Dropout voltage is defined for Vo≥2.5V device only. *: Future product. Contact factory for availability information. www.union-ic.com 1 Union Semiconductor Product Selection Guide Linear Regulators Ultra Low Quiescent Current Linear Regulator UM153xx/UM154xx Quiescent Current vs Ambient Temperature Quiescent Current vs Input Voltage Quiescent Current vs Input Voltage 1.6 1.4 1.4 1.2 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2 2.5 UM15333S VIN=4.3V 1.0 0.8 0.6 0.4 0.2 UM15315S 3 3.5 4 4.5 5 0.0 5.5 -40 Input Voltage (V) -20 0 20 VIN GND 4 3 VIN Battery-Powered Systems Reference Voltage Sources Cameras, Video Cameras Portable AV Systems Portable Games Cellular Phones UM153xxS GND Very Low Operating Voltage: 2.2V Ultra Low Iq Over All Operating Voltage Range: <3μA VIN 1 GND 2 GND VOUT EN 3 5 4 60 80 100 120 UM153xxY UM153xxS, SOT23-3 Benefits 40 Temperature (℃) VIN Applications Quiescent Current vs Temperature 1.6 Quiescent Current (uA) Ultra Low Iq: 0.8μA @ VIN=3V Operating Voltage Range: 2.2V to 5.5V Dropout Voltage: 100mV (Typ) @ Iload=50mA, VOUT>3.0V Output Voltage: 1.3V to 5.0V 100mA Guaranteed Output Current @ VIN≥3V 200mA Guaranteed Output Current @ VIN≥3.5V Fast Transient Response With Enable Control (UM154xx) Quiescent Current (uA) Key Features VIN UM153xxY, SOT89-3 VOUT 2 NC UM153xxDA, DFN4 1.8×1.2 VOUT 1 6 VIN GND 2 GND GND 2 5 EN EN 3 4 VIN NC 3 4 NC 5 VOUT NC 1 NC 1 VOUT VOUT UM154xxS, SOT23-5 UM154xxY, SOT89-5 UM154xxDA, DFN6 2.0×2.0 UM153xx/UM154xx Pin Configurations 300mA, Micropower, Dual Channel VLDO Linear Regulator UM4750S/UM4750DA/UM4750DB Key Features Very Low Dropout: <200mV @ 100mA Operating Voltage Range: 2.5V to 5.5V Low Noise: 200μVRMS (10Hz to 100kHz) Dual LDO Outputs (300mA/300mA) Output Current Limit Stable with 1μF Output Capacitor Thermal Overload Protection Low Profile SOT23-6, 6-Lead DFN2.0×2.0 and 8-Lead DFN3.0×3.0 Packages Applications Bluetooth/802.11 Cards PDAs and Notebook Computers Portable Instruments and Battery-Powered Systems Cellular Phones Benefits Low Profile Packages Separated Enable Control Available Multiple Output Voltage Combination The UM4750 series are dual channel very low dropout (VLDO) linear regulators with separated enable control. The range of output voltage is from 1.2V to 5.0V while operated from 2.5V to 5.5V input. Typical output noise is only 200μVRMS and maximum dropout is just 200mV at the load current of 100mA. Naming Rule - UM4750 Channel 2 Output Voltage Channel 1 Output Voltage Package Type S: SOT23-6 DA: DFN6 2.0×2.0 DB: DFN8 3.0×3.0 Available Voltage Version Code Voltage Code Voltage Code Voltage Code Voltage A B C D E 5 4.8 4.7 4.5 4.3 F G H J K 4.2 4 3.8 3.6 3.5 L M N P Q 3.3 3 2.8 2.7 2.5 R S T U 1.8 1.5 1.3 1.2 DFN6 2.0×2.0 SOT23-6 VOUT1 VIN DFN8 3.0×3.0 EN1 VOUT2 GND VIN 1 6 VOUT1 GND 2 5 VOUT2 EN1 3 4 EN2 VIN 1 EN1 2 EN2 3 NC 4 8 VOUT1 GND 9 7 NC 6 GND 5 VOUT2 EN2 UM4750 Pin Configurations www.union-ic.com 2 Union Semiconductor Product Selection Guide Linear Regulators 18V, 30mA, Low Consumption Linear Regulator UM1430/UM1440 Key Features Input Voltage Range: 3.6V to 18V Output Voltage: 2.0V to 6.0V with 100mV Interval 30mA Guaranteed Output Current Low Quiescent Current: 4.8μA (Typ) at 18V Input Low Dropout Voltage: 200mV (Typ) at 30mA With Enable Control (UM1440S/UM1440Y) VIN 2 GND 3 EN 8 7 VIN VIN GND 3 NC 4 4 GND UM1430S UM1430Y UM1430B 5 UM1430S-xx, SOT23-3 GND VOUT VIN VOUT UM1430Y-xx, SOT89-3 3 EN UM1440Y-xx, SOT89-5 VIN GND NC 2 VIN 6 4 5 VOUT 1 VOUT 5 UM1440S-xx, SOT23-5 Quiescent Current vs Input Voltage Quisecent Cuerrent (uA) 1 GND VOUT VIN 1 GND 2 NC 3 VIN UM1430B-xx, SOT89-3 5 VOUT 4 NC UM1430S5-xx, SOT23-5 UM1430/UM1440 Pin Configurations 2 1 0 2 4 6 8 10 12 14 Input Voltage (V) 16 18 350mA, Micropower, Low Dropout Linear Regulator UM1650/UM1750 Key Features Input Voltage Range: 2.5V to 6.0V 350mA Guaranteed Output Current Fixed Output Voltage of UM1650 and UM1750 from 1.0V to 4.0V with 0.1V Interval Adjustable Output Voltage of UM1750: 1.0V to 5.0V ±2% Voltage Accuracy at VOUT>1.5V ±30mV Voltage Accuracy at VOUT≤1.5V Low Dropout Voltage: 150mV (Max) at 150mA PSRR=63dB @ f=100Hz Excellent Load Transient Response Low Quiescent Current: 90μA (Typ) GND 1 IN 1 3 IN OUT 2 5 OUT GND 2 5 OUT GND 2 SHDN 3 4 NC Fixed Output, UM1650S-xx, SOT23-3 SHDN 3 4 FB Fixed Output, UM1750S-xx, SOT23-5 NC 1 SHDN 3 4 5 OUT GND GND 2 GND VIN SHDN 3 FB GND VIN IN NC SHDN NC GND NC IN OUT VOUT Fixed Output, UM1750DA-xx, DFN6 2.0×2.0 4 Adjustable Output, UM1750Y-00, SOT89-5 Fixed Output, UM1750Y-xx, SOT89-5 1 Adjustable Output, UM1750S-00, SOT23-5 1 5 VOUT GND 2 SHDN IN 1 1 FB Adjustable Output, UM1750DA-00, DFN6 2.0×2.0 UM1650/UM1750 Pin Configurations www.union-ic.com 3 Union Semiconductor Product Selection Guide Linear Regulators 500mA, Micropower, Ultra Low Vdrop Linear Regulator UM1770 Key Features Very Low Dropout: 450mV (Max) at 500mA Low Enable Threshold Voltage Maximum Input Voltage: 6.0V Fixed Output Voltage: 1.0V to 4.0V with 0.1V Interval Adjustable Output Voltage: 1.0V to 5.0V ±2.0% Voltage Accuracy at 500mA Under Voltage Lockout Output Current Limit Short-Circuit and Thermal Overload Protection 5 VOUT NC 1 GND 2 SHDN 3 4 GND GND 2 VIN SHDN 3 Fixed Output, UM1770Y-xx, SOT89-5 SHDN 5 VOUT FB 1 GND 4 VIN Adjustable Output, UM1770Y-00, SOT89-5 1 GND VIN NC SHDN NC GND VOUT 1 FB NC VIN Fixed Output, UM1770DA-xx, DFN6 2.0×2.0 VOUT Adjustable Output, UM1770DA-00, DFN6 2.0×2.0 UM1770 Pin Configurations 150mA, Micropower, Low Dropout Linear Regulator UM3730 Key Features Input Voltage Range: 2.5V to 5.5V 150mA Guaranteed Output Current ±2% Voltage Accuracy at 150mA Low Dropout Voltage: 155mV (Typ) at 150mA Low Enable Threshold Voltage Low Quiescent Current: 10μA Available Fixed Output Voltage: 1.0V to 3.3V with 0.1V Interval Output Auto Discharge VIN 4 EN 3 1 VOUT 2 GND UM3730DA, DFN4 1.0×1.0 (Top View) UM3730P, SOT353 UM3730 Pin Configurations www.union-ic.com 4 Union Semiconductor Product Selection Guide Switching Regulators DC/DC Buck Converters Part Number Description Iout (mA) Frequency (MHz) Peak (Max) (Typ) Efficiency 0.6~VIN 600 1.5 96% SOT23-5 2.5~5.5 0.6~VIN 600 1.2 90% SOT23-5 2.5~5.5 0.6~VIN 600 1.2 90% DFN6 2.0×2.0 2.5~5.5 0.6~VIN 1000 1.5 96% * DFN6 2.0×2.0 VIN (V) VOUT (V) 2.5~5.5 Package Sync Low Voltage Buck Converters (VIN≤6V) UM3500 UM3501 UM3501DA Current Mode PWM Buck Current Mode PWM Buck with Light Load Mode Current Mode PWM Buck with Light Load Mode SOT23-5 UM3510 Current Mode PWM Buck * DFN8 2.0×2.0 *UM3540 Current Mode PWM Buck with Light Load Mode 2.7~6.0 0.6~0.9×VIN 4000 1.5 95% SOP8 DFN10 3.0×3.0 High Input Voltage High Output Current Buck Converters (VIN≥6V, IOUT≥2A) *UM5432 *UM5482 Current Mode PWM Buck with Light Load Mode Current Mode PWM Buck 2.5~12.0 0.6~VIN 2000 4.75~18.0 0.9~15 2000 VIN (V) VOUT (V) (mA) 0.2~1.2 (Adjustable) 0.34 92% QFN14 3.5×3.5 90 SOP8 DC/DC Boost Converters ILIMIT Part Number Description (Max) *UM3429 UM1660 UM1665 Voltage Mode PWM Boost with Light Load Mode Constant Voltage PFM Boost Converter Constant Voltage PFM Boost Converter Frequency (MHz) Peak (Typ) Efficiency Package 0.9~4.4 2.5~5 600 0.6 92% SOT23-6 2.0~6.0 2.0~28 450 1 (Max) 88% 2.0~6.0 2.0~28 500 1 (Max) 88% VOUT (V) ILIMIT (mA) Frequency (MHz) Peak (Max) (Max) (Max) Efficiency 2.0~6.0 24 1600 2 88% SOT23-6 2.0~6.0 28 450 1 88% SOT23-5 2.7~5.5 40 1200 1 90% Vsense (mV) ILIMIT (mA) Frequency (MHz) Peak (Typ) (Min). (Max) Efficiency 7~30 100 370 1 >90% SOT23-5 6~35 100 1000 1 >90% SOT23-5 6~35 100 1000 1 >90% SOT89-5 6~35 100 1200 1 >90% SOT23-5 6~35 100 1200 1 >90% SOT89-5 6~40 100 1500 1 >90% SOT23-5 6~40 100 1800 1 >90% SOT23-5 SOT23-5 DFN6 2.0×2.0 SOT23-5 DFN6 3.0×3.0 LED Backlight Boost Drivers Part Number Description VIN (V) Package Constant Current PFM Boost UM1661 Converter with Over Voltage Protection *UM1662S *UM1663 Constant Voltage PFM Boost Converter Constant Current PWM Boost Converter SOT23-5 DFN8 2.0×2.0 LED Lighting Buck Drivers Part Number UM1350 UM1351S UM1351Y UM1360S UM1360Y UM1361S *UM1370S Description 30V Input 350mA Step-Down Current Mode LED Driver 35V Input 700mA Step-Down Current Mode LED Driver 35V Input 700mA Step-Down Current Mode LED Driver 35V, 1A Step-Down Current Mode LED Driver, with Frequency Jitter 35V, 1A Step-Down Current Mode LED Driver, with Frequency Jitter 40V Input 1A Step-Down Current Mode LED Driver 40V Input 1.2A Step-Down Current Mode LED Driver VIN (V) Package *: Future product, contact factory. www.union-ic.com 5 Union Semiconductor Product Selection Guide Switching Regulators 30V, 350mA LED Lighting Driver UM1350 Key Features Internal 30V NDMOS Switch 350mA Output Current Wide Input Voltage Range: 6V to 30V ±5% LED Current Accuracy High Efficiency (up to 95%) Analog or PWM Dimming Control 40V Transient Capability Inherent Open-Circuit LED Protection Output Shutdown Control Up to 1MHz Switching Frequency Pb-Free SOT23-5 Package The UM1350 is capable of driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. This step-down converter provides an externally adjustable output current of up to 350mA from an input supply between 6V and 30V. It can even reach 8 watts of output power, depending on supply voltage and external components. The UM1350 is available in a low profile SOT23-5 package. D1 Rs 0.33ohm VIN (up to 30V) VIN L1 UM1350 C1 100µH 1µF Floating ADJ MR16 and General Lighting Automotive Lighting Low Voltage Industrial Lighting Illuminated Signs LX GND Applications ISENSE Typical Application Circuit 1 LX VIN 5 2 GND Benefits DC Voltage or PWM Dimming High Efficiency (up to 95%) Inherent Open-Circuit LED Protection 3 ADJ ISENSE 4 SOT23-5 UM1350 Pin Configuration 35V, 1A LED Lighting Driver UM1360S/UM1360Y Key Features Integrated 35V 0.4Ω NDMOS 1A Output Current Wide Input Voltage Range: 6V to 35V ±5% LED Current Accuracy Up to 95% Efficiency Adjustable Constant LED Current Analog or PWM Dimming Control Improved EMI through Frequency Jitter Over Temperature and Open-Circuit LED Protection Up to 1MHz Switching Frequency Pb-Free SOT23-5 and SOT89-5 Packages The UM1360 is a PWM step-down converter with internal power switch, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 6V and 35V and employs hysteretic control with a high side current sense resistor to set the constant output current up to 1A. D1 Rs 0.1ohm VIN (up to 35V) VIN ISENSE L1 UM1360 Ci 10µF Floating VSET 100µH LX Applications Low Voltage Industrial Lighting Illuminated Signs DC/DC or AC/DC LED Driver Application General Purpose, Constant Current Source Typical Application Circuit 1 VSET ISENSE 5 5 VIN LX 1 GND 2 2 GND Benefits VSET 3 DC Voltage or PWM Dimming Inherent Open-Circuit LED Protection 3 LX VIN UM1360S SOT23-5 4 ISENSE 4 UM1360Y SOT89-5 UM1360 Pin Configurations www.union-ic.com 6 Union Semiconductor Product Selection Guide Switching Regulators 600mA, 1.2MHz, Synchronous Step-Down DC-DC Converter UM3501/UM3501DA UM3501 is a high-efficiency pulse-width-modulated (PWM) step-down Efficiency vs. Load Current (VOUT=1.8V) 100 DC-DC converter, capable of delivering 600mA output current over a wide input 90voltage range from 2.5V to 5.5V. The UM3501 automatically 80 synchronous rectifier while the inductor current is low and turns off the enters discontinuous PWM mode. This can increase efficiency at light 70 load condition. 60 Key Features High Efficiency: up to 90% 2.5V to 5.5V Input Voltage Range 600mA Output Current 1.2MHz Constant Switching Frequency Integrated Main Switch and Synchronous Rectifier Pulse Skipping Mode Operation at Light Load Condition Low Quiescent Current: 50µA <1µA Shutdown Current Lead Free SOT23-5 (UM3501) and DFN6 2.0×2.0 (UM3501DA) Packages Efficiency (%) 50 Pulse Skipping Mode improves efficiency at light load operation. 40 30 VIN=2.5V VIN=3.6V VIN=4.2V VIN=5.5V 20 10 0 1 10 100 1000 Output Current (mA) Benefits Pulse Skipping Mode Improves Efficiency at Light Load Operation Synchronous Rectifier, No External Schottky Diode Required Ultra Low Shutdown Current VIN 2.5V~5.5V L 2.2uH VIN SW UM3501 UM3501DA C1 4.7uF EN GND VOUT= 1.8V R2 634K C2 10uF FB R1 316K UM3501/UM3501DA Typical Application Circuit 28V Low Power DC/DC Boost Converter UM1660S/UM1660DA Key Features 2.0V to 6.0V Input Voltage Range Adjustable Output Voltage up to 28V 400mA Internal Switch Current Up to 1MHz Switching Frequency 36μA Typical No Load Quiescent Current 1μA Maximum Shutdown Current Internal Soft-Start Tiny SOT23-5 and DFN6 2.0×2.0 Packages The UM1660 is a PFM controlled step-up DC-DC converter with a switching frequency up to 1MHz. The device is ideal to generate output voltage for small to medium LCD bias supplies and white LED backlight supplies from a single cell Li-ion battery. The part can also be used to generate standard 3.3V/5V to 12V power conversions. L1 10 µ H V IN = 2.0- 6V EN LCD Bias Supply White LED Supply for LCD Backlights Digital Still Cameras PDAs, Organizers and Handheld PCs Cellular Phones Standard 3.3V/5V to 12V Conversion COUT 1µF FB GND R2 UM1660 Typical Application Circuit SW 1 GND 2 FB 3 5 4 UM1660S (Top View) www.union-ic.com C FF R1 UM1660 C IN 4 .7 µ F VOUT = V IN - 28V SW VIN Applications D1 7 VIN EN VIN 1 6 SW GND 2 5 NC EN 3 4 FB UM1660DA (Top View) Union Semiconductor Sales Contact Union Semiconductor Sales Office Union Semiconductor, Inc. Add: 5201 Great America Pkwy, Suite 320, Santa Clara, CA 95054 Tel: +1-855-668-7711 E-mail: [email protected] Union Semiconductor (Shanghai) Ltd. Add: Room 606, No. 570 Shengxia Road, Zhangjiang Hi-Tech Park, Shanghai Tel: (86)21-51093966 Fax: (86)21-51026018 E-mail: [email protected] Union Semiconductor (Shenzhen) Ltd. Add: Room 1202, Anhui Building, No. 6007 Shennan Road, Futian District, Shenzhen Tel: (86)755-88309242/88309243/88309244 Fax: (86)755-88309242-808 E-mail: [email protected] Union Semiconductor (HK) Ltd. Add: Unit 202, No.8 Science Park West Avenue, Hong Kong Science & Technology Park, NT, Hong Kong Tel: (852)22107006 Fax: (852)83431122 E-mail: [email protected] Union Semiconductor, Beijing Office Tel: (86)21-68367050 E-mail: [email protected] Union Semiconductor, Qingdao Office Tel: (86)21-68367050 E-mail: [email protected] www.union-ic.com 8 Union Semiconductor Add:Unit 606,No.570 Shengxia Road,Zhangjiang Hi-Tech Park,Shanghai Zip Code:201210 Tel:86-21-51093966 Fax:86-21-51026018 Website:www.union-ic.com