Power Supply Selection Guide www.union-ic.com 2Q 2013 Product Selection Guide Table of Contents Power Supply Linear Regulator ………………………………………………………………………………………………………2-4 Single Channel 300mA Output Current LDO ………………………………………………………………………2 Dual Channel 300mA Output Current LDO ………………………………………………………………………2 Single Channel 500mA Output Current LDO ………………………………………………………………………2 High Input Voltage LDO ……………………………………………………………………………………………2 Ultra Low Quiescent Current LDO……………………………………………………………………………………2 Switching Regulator …………………………………………………………………………………………………5-7 DC-DC Buck Converter ………………………………………………………………………………………………5 DC-DC Boost Converter ……………………………………………………………………………………………5 LED Backlight Boost Driver …………………………………………………………………………………………5 LED Lighting Buck Driver ……………………………………………………………………………………………5 Appendix Sales Contact …………………………………………………………………………………………………………8 www.union-ic.com 1 Union Semiconductor 2013 Product Selection Guide Linear Regulators (LDOs) Part Number Features VIN (V) (Min) VIN (V) (Max) VOUT (V) Note1 IOUT (mA) (Max) Iq@ VIN_MAX (μA) (Typ) VDROP(mV)@ IO (Max)Note2 Package 300 120 90@150mA SOT23-3 300 55 200@100mA SOT23-3 SC70-3 300mA CMOS Linear Regulators without EN Control UM165xx Ultra Low Dropout 2.5 6.0 UM365xx Standard Low Dropout 2.5 6.0 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300mA CMOS Linear Regulators with EN Control UM175xx UM375xx *UM185xx Ultra Low Dropout EN Control Standard Low Dropout EN Control Ultra Low Dropout , EN Control Reverse current protection 2.5 6.0 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300 120 90@150mA SOT23-5 2.5 6.0 1.2//1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300 55 200@100mA SOT23-5 SC70-5 2.5 6.0 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300 120 90@150mA SOT23-5 2.5 6.0 1.2//1.5/1.8/2.5/2.8/ 3.0/3.3/3.5 500 120 400@500mA DFN2020-6 2.5 5.5 1.2//1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300 120 200@100mA TSOT23-6 WDFN8 9 300@150mA SOT23-3 SOT89-3 300@150mA SOT23-3 700@100mA SOT23-5 500mA CMOS Linear Regulators UM177xx 500mA Output Current Very Low Dropout Dual Channels 300mA CMOS UM475xx Linear Regulators Dual Channel Separate EN Control High Input Voltage Linear Regulators UM142xx 12V Input Voltage 2.5 12.0 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300 *UM143xx 24V Input Voltage 2.5 24.0 1.2/1.5/1.8/2.5/2.7/ 2.8/3.0/3.3 300 2.2 5.5 1.2//1.5/1.8/2.5/2.8/ 3.0/3.3/3.5 100 Ultra Low Iq Linear Regulators UM153xx Ultra Low Iq 1.6 Note1: Besides the standard output voltages listed in the table, customized output Voltage is also available from 1.2V to 2.5V 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 2 Union Semiconductor 2013 Product Selection Guide Linear Regulators 300mA, Low Consumption Current, Wide Input Voltage Linear Regulator UM142xxS/UM142xxY/UM142xxB y y y y y y y Maximum 12V input voltage Low quiescent current: 9μA at 12V input High PSRR: 60dB range to 10kHz Low output Noise: 44μVRMS Low dropout: 270mV at 150mA load Temperature coefficient: ±100ppm/℃ Excellent line regulation: 0.05%/V The UM142xx series are 12V input voltage, high precise, high PSRR and low power consumption Linear regulators. The output voltages are selectable in 100mV steps within a range of 2.5V to 5V. It also can be customized on command. The UM142xx series are available in a low profile SOT23-3& SOT89-3 package, which are lead (Pb)-free. Quiescent Current VS Input Voltage Applications y y y y y 14 13 12 11 10 9 8 7 6 5 4 3 2 Quiescent Current(uA) Key Features Reference voltage source Battery powered equipment Hand-Hold equipment Wireless LAN GPS receivers 5 6 7 8 9 10 11 12 Input Voltage(V) Benefits SOT23-3 SOT89-3 VIN y Low quiescent current: 9μA at 12V y Low output noise: 44μVRMS UM142xxS GND SOT89-3 VDD GND UM142xxB UM142xxY VOUT GND UM142xx Pin Configurations VDD VOUT VOUT GND VDD Ultra Low Quiescent Current Linear Regulator UM153xxS/ UM153xxY Applications y y y y y y Battery-Powered systems Reference voltage sources Cameras, video cameras Portable AV systems Portable games Cellular phones The UM153xx series are ultra low quiescent current low dropout linear regulators designed for low power portable applications. The range of output voltage is from 1.5V to 3.6V while operated from 2.2V to 5.5V input. The device is available in a low profile SOT23-3 or SOT89-3 package. Quiescent Current vs Input Voltage 1.6 1.4 1.4 1.2 1.2 1.0 0.8 0.6 0.4 www.union-ic.com 0.8 0.6 0.4 0.0 0.0 2 2.5 3 3.5 4 4.5 5 -40 5.5 -20 0 20 40 60 80 100 120 Temperature ( ℃) Input Voltage (V) SOT23-3 SOT89-3 VIN UM153xxY UM153xxS y Very low operating voltage: 2.2V range: <3uA 1.0 0.2 0.2 Benefits y Ultra low Iq over all operating voltage Quiescent Current vs Temperature 1.6 Quiescent Current (uA) y Operating voltage range: 2.2-5.5V y Available output voltage version: 1.5,1.8,2.5,2.7,2.8,3.0,3.3,3.6V y Ultra low Iq: <3uA y Fast transient response y Output current limit y Stable with 1μF output capacitor y Thermal overload protection y Low profile SOT23-3 or SOT89-3 Package Quiescent Current (uA) Key Features GND VOUT GND VIN VOUT UM153xx Pin Configurations 3 Union Semiconductor 2013 Product Selection Guide Linear Regulators 300mA, Micropower, VLDO Linear Regulator UM375xxS/UM375xxP Very low dropout: <200mV@100mA Maximum input voltage: 6.0V Low noise:100μVRMS (10Hz to 100kHz) ±2% voltage accuracy at 150mA Fixed output voltage: 1.2V to 5.0V with 100mV interval y Output current limit y Thermal overload protection y Low profile SOT23-5 and SOT353 Package y y y y y Applications y Bluetooth/802.11 cards y PDAs and notebook computers y Portable instruments and Battery-Powered systems y Cellular phones The UM375xx series are very low dropout (VLDO) linear regulators designed for low power portable applications. Typical output noise is only 100μVRMS and maximum dropout is just 200mV at the load current of 100mA.The internal P-channel MOSFET pass transistor requires no base current, allowing the device to draw only 90 μA during normal operation at the maximum load current of 300mA. Dropout Voltage vs Output Current 350 300 D ropou t V o ltage(m V ) Key Features SOT23-5 SOT353 250 200 150 100 50 1 VIN 2 GND 3 EN VOUT 5 NC 4 0 0 25 50 75 100 125 150 175 200 225 250 275 300 Output Current(mA) Dropout Voltage vs Output Current Pin Configurations 300mA, Micropower, Dual Channel VLDO Linear Regulator UM475xxS/UM475xxDA Key Features y y y y y y y y Very low dropout: <200mV@100mA Operating voltage range: 2.5-5.5V 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 and 8 leads DFN3.0×3.0 packages The UM475xx 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 UM475 Package Type S: SOT23-6 DA: DFN8 Channel 2 Output Voltage Channel 1 Output Voltage Applications y Bluetooth/802.11 cards y PDAs and notebook computers y Portable instruments and Battery-Powered systems y Cellular phones 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 Benefits SOT23-6 y Low profile packages y Separated enable control y Available multiple output voltage combination VOUT1 VIN DFN3030-8L EN1 VIN 1 EN1 2 VOUT2 GND EN2 3 NC 4 GND 9 8 VOUT1 7 NC 6 GND 5 VOUT2 EN2 UM475xx Pin Configurations www.union-ic.com 4 Union Semiconductor 2013 Product Selection Guide Switching Regulators DC/DC Buck Converter Part Number Description VIN (V) VOUT (V) Iout (mA) (Max) Frequency (MHz) (Typ) Peak Efficiency Package Sync Low Voltage Buck Converter (VIN≤6V) UM3500 Current Mode PWM Buck 2.5 ~ 5.5 0.6 ~VIN 600 1.5 96% SOT23-5 UM3501 Current Mode PWM Buck with Light Load Mode 2.5 ~ 5.5 0.6 ~VIN 600 1.2 90% SOT23-5 UM3510 Current Mode PWM Buck 2.5 ~ 5.5 0.6 ~VIN 1000 1.5 96% SOT23-5 *UM3540 Current Mode PWM Buck with Light Load Mode 2.7 ~ 6.0 0.6 ~0.9×VIN 4000 1.5 95% SOP8 DFN3030-10L High Input Voltage High Output Current Buck Converter (VIN≥6V, IOUT≥2A) *UM5432 Current Mode PWM Buck with Light Load Mode 2.5 ~ 12.0 0.6 ~VIN 2000 0.2-1.2 (adjustable) 92% QFN3535-14L *UM5482 Current Mode PWM Buck 4.75-18.0 0.9 ~15 2000 0.34 90 SOP8 VIN (V) VOUT (V) ILIMIT (mA) (Max) Frequency (MHz) Typ. Peak Efficiency Package 0.9 ~ 4.4 2.5 ~ 5 600 0.6 92% SOT23-6 2.0 ~ 6.0 1.2~28 450 1（Max.） 88% SOT23-5 VIN (V) VOUT (V) (Max) ILIMIT (mA) (Max) Frequency (MHz) (Max) Peak Efficiency Package DC/DC Boost Converter Part Number *UM3429 UM1660S Description Voltage Mode PWM Boost with Light Load Mode Constant Voltage PFM Boost Converter LED Backlight Boost Driver Part Number Description UM1661 Constant Current PFM Boost Converter with Over Voltage Protection 2.0 ~ 6.0 24 1600 2 88% SOT23-6 *UM1662S Constant Voltage PFM Boost Converter 2.0 ~ 6.0 28 450 1 88% SOT23-5 *UM1663 Constant Current PWM Boost Converter 2.7 ~ 5.5 40 1200 1 90% SOT23-5 DFN2020-8 LED Lighting Buck Driver Part Number Description VIN (V) Vsense (mV) (Typ) ILIMIT (mA) (Min). Frequency (MHz) (Max) Peak Efficiency Package UM1350 30V input 350mA Step Down Current Mode LED Driver 7 ~ 30 100 370 1 >90% SOT23-5 *UM1351S 30V input 800mA Step Down Current Mode LED Driver 7~ 30 100 1000 1 >90% SOT23-5 UM1360S 40V input 1A Step Down Current Mode LED Driver 6~ 40 100 1500 1 >90% SOT23-5 *UM1370S 40V input 1.2A Step Down Current Mode LED Driver 6~ 40 100 1800 1 >90% SOT23-5 *: Future product, contact factory. www.union-ic.com 5 Union Semiconductor 2013 Product Selection Guide Switching Regulators 30V, 350mA LED Lighting Driver UM1350 Key Features y y y y y y y y y y y 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) ISENSE L1 UM1350 C1 100µH 1µF Applications y y y y VIN MR16 and general lighting Automotive lighting Low voltage industrial lighting Illuminated signs ADJ Floating LX GND Typical application circuit 1 LX Benefits y DC voltage or PWM dimming y High efficiency (up to 95%) y Inherent open-circuit LED protection VIN 5 2 GND 3 ADJ UM1350 Pin Configurations ISENSE 4 SOT23-5 40V, 1A LED Lighting Driver UM1360S Key Features Integrated 40V 0.5Ω NDMOS 1A output current Wide input voltage range: 6V to 40V ± 5% LED current accuracy Up to 95% efficiency Adjustable constant LED current Analog or PWM dimming control Over temperature and open circuit LED protection y Up to 1MHz switching frequency y Pb-Free SOT23-5 package y y y y y y y y The UM1360S 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 40V 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 40V) Low voltage industrial lighting Illuminated signs DC/DC or AC/DC LED driver application General purpose, constant current source ISENSE 10µF Floating VSET 100µH LX Typical application circuit 1 LX VIN 5 Benefits 2 GND y DC voltage or PWM dimming y Inherent open-circuit LED protection 3 VSET UM1360S Pin Configurations www.union-ic.com L1 UM1360S Ci Applications y y y y VIN 6 ISENSE 4 SOT23-5 Union Semiconductor 2013 Product Selection Guide Switching Regulators 600mA, 1.2MHz, Synchronous Step-Down DC-DC Converter UM3501 y y y y y y y y y y 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 Thermal fault protection Lead free SOT23-5 package Applications y y y y y y Cellular and smart phones Microprocessors and DSP core supplies Wireless and DSL modems PDAs, GPS MP3 player Portable instruments UM3501 is a high-efficiency pulse-width-modulated (PWM) step-down DC-DC converter, capable of delivering 600mA output current over a wide input voltage range from 2.5V to 5.5V. The UM3501 automatically turns off the synchronous rectifier while the inductor current is low and enters discontinuous PWM mode. This can increase efficiency at light load condition. Efficiency vs Load Current (Vout=1.8V) 100 90 80 70 Efficiency (%) Key Features Pulse Skipping Mode improve efficiency 60 50 40 30 VIN=2.5V VIN=3.6V VIN=4.2V VIN=5.5V 20 10 0 1 10 100 1000 Output Current (mA) L 2.2uH VIN 2.5V~5.5V Benefits y Pulse skipping mode improve efficiency at light load operation y Synchronous rectifier, no external schottky diode required. y Ultra low shutdown current C1 4.7uF VOUT= 1.8V SW VIN R2 634K UM3501 EN GND C2 10uF FB R1 316K UM3501 typical application circuit 28V Low Power DC/DC Boost Converter UM1660S Key Features y y y y y y y y 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 Available in Tiny SOT23-5 Package Applications y y y y y y LCD Bias Supply White LED Supply for LCD Backlights Digital Still Camera PDAs, Organizers and Handheld PCs Cellular Phones Standard 3.3V/5V to 12V Conversion The UM1660S 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 V OUT = V IN - 28V SW VIN C IN 4.7 µF D1 R1 UM1660S EN C FF COUT 1 µF FB GND R2 UM1660S typical application circuit www.union-ic.com 7 Union Semiconductor 2013 Sales Contact Union Semiconductor Sales Office Union Semiconductor, Inc. Add: 5201 Great America Pkwy, Suite 320, Santa Clara, CA 95054 Tel : +1-503-617-6545 E-mail: [email protected] Union Semiconductor (Shanghai) Ltd. Add: 2F, No.3, Lane 647 Songtao Road, Zhangjiang Hi-Tech Park, Shanghai Tel : (86)21- 51093966 Fax: (86)21- 51026018 E-mail:[email protected] Union Semiconductor (Shenzhen) Ltd. Add: Rm922-924,HangGangFuChun Commercial Building,No.6031,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 2013