V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches Smart Load Switch Over-temperature protection Short circuit, overcurrent protection Bidirectional on / off switching Low-resistance power switch IN EN OUT Input protection: over / under voltage protection, negative voltage tolerance Slew rate controlled on / off Output discharge GND-referenced, low-voltage logic control and hysteresis Integrated gate pump for enhanced lowvoltage performance Fault alert and auto retry WHAT ARE SMART LOAD SWITCHES? Vishay Siliconix smart load switches are integrated low-resistance power switches with optimized features, as shown in Figure 1. The family provides improved controllability, safety, and compact sizes in designs for power distribution, sequencing, and protection. Features Benefits Low Vin operation The integrated gate driving circuit extends the minimum Vin range, bringing lower switch resistance and improved efficiency Low-voltage GPIO enable Low-voltage GPIO enable is simplified GPIO control that can be used to implement power distribution and sequencing of multiple sub-systems Slew rate control Load switches with slew rate control provide a controlled supply ramp, reducing inrush current Quick output discharge The output node has a defined decay with quick output discharge and does not leave the node floating Fault protection and isolation Load switches with fault protection and isolation can have integrated protection features such as reverse current, over temperature, current limiting, and short circuit for increased robustness Small solution size Integrated load switches in small package sizes use significantly less PCB area compared to a discrete implementation. Reduced BOM count translates into lower manufacturing costs RESOURCES • Product web page - www.vishay.com/power-ics • For technical questions contact [email protected] One of the World’s Largest Manufacturers of Discrete Semiconductors and Passive Components SELECTOR GUIDE 1/8 VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches Load Management In many applications, there is a repetition of power rails of the same voltage. Instead of using multiple DC/DC converters to generate the same voltage rails, load switches can be used to distribute the power from the DC/DC converter and sequence it in the appropriate order, reducing the board space required. Problem VSupply SMPS-1 SMPS-2 SMPS-3 Solution VOUT 1.8 V Storage VSupply SMPS-1 VOUT 1.8 V Storage VOUT 1.8 V Processor SiP324xx VOUT 1.8 V Comm SiP324xx VOUT 1.8 V Processor VOUT 1.8 V Comm Sequencing Order Power Saving Functions not used at all times can be turned off using a load switch, reducing power consumption and prolonging battery life. This is more important for blocks with high power consumption, such as graphics, processors, radios, and memory in ultra-compact applications. Problem Bluetooth 4GPA Memory Storage Processor PMIC Solution WiFi Bluetooth Load Switch Application Processors 4GPA Load Switch Graphics Imaging Display Memory Storage Load Switch Processor PMIC Load Switch WiFi Load Switch Application Processors Load Switch Graphics Imaging Display Vishay Siliconix offers smart load switches with resistance ranges from 100 mΩ down to 6.5 mΩ. For various circuit design considerations, they are offered as a series with feature options for turn-on slew rate, output discharge, reverse blocking, undervoltage lockout, logic high / low enable, and overcurrent protection. Parts are available in a variety of compact plastic packages as well as wafer-level chipscale package options. Vishay’s chipscale packages feature a unique top-side lamination to enhance mechanical ruggedness of the package, thus improving reliability during SMT handling. SELECTOR GUIDE 2/8 VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches SiP32458/9 Switch Resistance Comparison SiP32458, SiP32459 50 45 Switch ON Resistance (Ohm) The SiP32458/9 are 20 mΩ switches with superior low and flat RDS(ON) over a wide Vin range without compromising operating quiescent current. The parts incorporate an adaptive charge pump to drive the PMOS gate when turned on. FEATURES AND BENEFITS: • • • • • Wide operation voltage range: 1.5 V to 5.5 V 20 mΩ low and flat RDS(ON) over the full voltage range Low quiescent current of 2.8 μA at 3 V Low logic control EN with integrated pull-down resistor Reverse blocking functionality at turn-off Smartphones, PDAs, cell phones Handheld instrumentation and PCs Handheld POS Data storage 35 30 SiP32458/9 Competition 25 20 15 10 5 0 1 2 3 4 5 6 Switch Input Voltage (V) APPLICATIONS: • • • • 40 Ron (mΩ) Part Number TD(on) (ms) TR (ms) TD(oFF) (µs) Output Discharge Reverse Blocking SiP32458DB-T2-GE1 20 500 3 18 – √ SiP32459DB-T2-GE1 20 500 3 18 √ – SiP32101, SiP32102, SiP32103 Ultra-Low-Resistance Bidirectional Switches The SiP32101, SiP32102, and SiP32103 offer the lowest resistance for bidirectional battery-isolated switches in compact 12-bump WCSP 1.3 mm by 1.7 mm packages, which enable a 91 % smaller PCB footprint over discrete solutions. System Charging Block System Connector Power Input S1 Ultra-low switch resistance: 6.5 mΩ at 3.3 V 5 A DC current capability Wide input voltage range: 2.3 V to 5.5 V Bidirectional ON and OFF switching Low quiescent current: 0.015 nA typical 1.4 V logic high for direct low-voltage control interface • Slew rate control • EN pin with integrated 500 KΩ pull resistor Charger Output S2 To Battery Pack Port A FEATURES AND BENEFITS: • • • • • • System Power Input Charging Control and Regulator G1 Port B G2 /EN ON/OFF Slew Rate Gate Drive Control and Level Shift GND 26 mm2 2.3 mm2 Discrete Solution SiP3210x Integrated Solution APPLICATIONS: • • • • • • Smartphones and tablets Power bank and battery Portable meters and test instruments Communication devices with embedded batteries Portable medical and healthcare systems Data storage SELECTOR GUIDE 3/8 Part Number Control Logic EN Resistor SiP32101DB-T1-GE1 Low Enable Pull Down SiP32102DB-T1-GE1 High Enable Pull Down SiP32103DB-T1-GE1 Low Enable Pull Up VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches SiP4282, Quiescent Current vs Input Voltage SiP4282 and SiP32431 Series 800 Ultra-Low-Quiescent-Current Load Switches The SiP32431 features 40 pA ultra-low quiescent current. They are of great advantage for those designs with limited battery size and long standby time. FEATURES AND BENEFITS: • • • • Wide operation voltage range: 1.5 V to 5.5 V 100 μs and 1 ms slew rate options Low switch ON resistance: 100 mΩ Featuring output discharge, reverse blocking, and undervoltage lockout • Compact TDFN4 1.2 mm by 1.6 mm package QUIESCENT CURRENT (pA) 700 600 500 400 300 200 100 0 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 VIN (V) APPLICATIONS: • • • • Portable instruments Healthcare devices Smartphones / cellular phones PMP, GPS, DSC Power Input SiP32419, SiP32429, SiP32430 VIN Programmable Overcurrent Protection EN The SiP32419, SiP32429, and SiP32430 smart load switches integrate multiple features that enhance controllability and safety. They provide settable overcurrent protection and soft start time for slew rate control. Their ultra-fast 1 μs short-circuit response and thermal shutdown provide enhanced levels of protection. The SiP32419 and SiP32429 offer current limit settings in the range of 750 mA to 3.5 A, and the SiP32430 offers current limit settings in the range of 150 mA to 1 A. ILIM Rset VOUT Bias up to 28 V /FLG SS Css /PG GND FEATURES AND BENEFITS: APPLICATIONS: • • • • • • • • • • • • • • • • • • • Wide operation voltage range: 6 V to 28 V Programmable switch turn-on Adjustable current limit < 1 μs short-circuit protection response time Over-temperature protection Input undervoltage lockout Convenient low-voltage control logic Power Good and Fault Flag outputs with blanking time Compact DFN10 3 mm by 3 mm package SiP32419 latches off on Fault SiP32429 and SiP32430 auto retry after 150 ms SELECTOR GUIDE 4/8 To Load Industrial Telecommunication Data storage, HDD, SSD Portable equipment Motor drivers Digital cameras Computing Medical and healthcare equipment VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches Vishay Siliconix Smart Load Switch Product Offering Combining advanced process technology and circuit design, Vishay Siliconix offers best-in-class smart load switch products that include slew rate control load switches, current-limiting, and low-resistance bidirectional switches. Vishay Siliconix offers smart load switches in both wafer-level chipscale packages and plastic package options. Slew Rate Control Load Switches VIN (min) Config Part Number Package SiP32508DT SOT23-6L 3.05 mm x 2.85 mm SiP32510DT SiP32431DR3 SiP32411DR SC70-6L 2 mm x 2 mm VIN (max) VIN (V) Rds (mΩ) IQ VIN (V) Rds (mΩ) IQ Continuous Current 1.1 48 10 µa 5.5 47 105 µA 3A 1.5 395 <1 nA 147 <1 nA 1A NA 1.1 105 6.7 µa 1.5 350 <1 nA 1.6 ms √ 100 µs NA 101 71 µA 2A 5.5 105 150 µs 1.2 A 1.8 1.5 230 2.5 µA √ NA √ NA NA √ High 2.5 µA 350 <1 nA <1 nA 1.2 A 100 µs TDFN4 1.2 mm x 1.6 mm SiP32408DNP 1.8 230 2.5 µA 2.5 µA NA 5.5 66 6.7 µA √ 62 71 µA 2A High 150 µs 1.1 NA 45 44 3A √ SiP32409DNP √ SiP32448DNP SELECTOR GUIDE √ 100 µs 105 SiP32472DNP High <1 nA SiP32431DNP3 SiP32459DB High 1 ms SiP4282ADNP3 SiP32458DB High √ √ SiP4282ADNP2 SiP32411DNP 2 ms Reverse Enable Blocking 1 ms PPAK-SC75 SiP4282ADVP3 1.6 mm x 1.6 mm SiP4282DVP3 SiP4282DNP3 Output Discharge 5.5 SiP4282ADVP2 Single Slew Rate 1.8 38 10 µA WCSP6 1.0 mm x 1.5 mm 1.5 38 2 µA uDFN4, 1.1 mm x 1.1 mm 1.2 32 120 µA 4A 20 6 µA 3A NA NA 5.5 2.7 ms √ High √ High √ 86 1.4 µA 5.5 46 5/8 5.8 µA 1.2 A 170 µs √ VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches Slew Rate Control Load Switches VIN (min) Config Part Number Package VIN (V) Rds (mΩ) VIN (max) VIN (V) IQ Rds (mΩ) IQ Continuous Current Slew Rate Output Discharge Reverse Enable Blocking NA SiP32460DB 140 µs SiP32461DB √ SiP32462DB 1.2 95 2 µA 5.5 50 4.5 µA 2A 8.5 µs SiP32467DB High NA NA 140 SiP32468DB Single SiP32451DB SiP32452DB Low √ WCSP4 0.8 mm x 0.8 mm √ √ 0.9 56 10 µA 2.5 54 34 µA 1.2 A 25 µs SiP32453DB NA √ High SiP32454DB 0.8 30 10 µA 2.5 28 34 µA 1.2 A 1.3 ms SiP32455DB Dual (2 to 1) SiP32413DNP SiP32414DNP Dual SiP32416DNP NA TDFN8 2 mm x 2 mm 1.1 66 6.7 µA 5.5 62 71 µA 2A TDFN8 2 mm x 2 mm 1.1 66 6.7 µA 5.5 62 71 µA 2A 150 µs NA NA High / Low 150 µs √ High 2.5 ms Current Limiting Switches Current Limit Setting Range Over-Current Response Slew Rate OTP Enable 56 mΩ 139 µA 0.75 A ~ 3.5 A Off after 8 ms limit, switch latch at Off Settable √ High 28 V 56 mΩ 139 µA 0.75 A ~ 3.5 A Off after 8 ms limit, 150 ms auto retry after Off Settable √ High 28 V 56 mΩ 139 µA 0.15 A ~ 1 A Off after 8 ms limit, 150 ms auto retry after Off Settable √ High Part Number Package VIN (min) VIN (max) SiP32419 DFN10 3 mm x 3 mm 6V 28 V SiP32429 DFN10 3 mm x 3 mm 6V SiP32430 DFN10 3 mm x 3 mm 6V SELECTOR GUIDE Rds IQ 6/8 VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches Bi-directional Switches VIN (min) Part Number Package SiP32101 VIN (max) IQ Continuous Current (A) Slew Rate Reverse Blocking Enable EN Resistor 5.1 30 pA 7 2.3 ms √ Low Pull Down 5.5 5.1 30 pA 7 2.3 ms √ High Pull Down 20 pA 5.5 5.1 30 pA 7 2.3 ms √ Low Pull Up 95 1.2 µA 5.5 50 5.8 µA 1.2 170 µs √ High Pull Down 95 1.2 µA 5.5 50 5.8 µA 1.2 170 µs √ Low Pull Down VIN (V) Rds (mΩ) IQ VIN (V) Rds (mΩ) WCSP 1.3 mm x 1.7 mm 2.3 8 20 pA 5.5 SiP32102 WCSP 1.3 mm x 1.7 mm 2.3 8 20 pA SiP32103 WCSP 1.3 mm x 1.7 mm 2.3 8 SiP32460 WCSP 0.8 mm x 0.8 mm 1.2 SiP32467 WCSP 0.8 mm x 0.8 mm 1.2 SELECTOR GUIDE 7/8 VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 V I S H AY I N T E R T E C H N O L O G Y, I N C . POWER MANAGEMENT ICs Smar t Load Switches WORLDWIDE SALES CONTACTS THE AMERICAS EUROPE UNITED STATES GERMANY VISHAY AMERICAS ONE GREENWICH PLACE SHELTON, CT 06484 UNITED STATES PH: +1-402-563-6866 FAX: +1-402-563-6296 VISHAY ELECTRONIC GMBH DR.-FELIX-ZANDMAN-PLATZ 1 95100 SELB GERMANY PH: +49-9287-71-0 FAX: +49-9287-70435 ASIA FRANCE SINGAPORE VISHAY INTERTECHNOLOGY ASIA PTE LTD. 37A TAMPINES STREET 92 #07-00 SINGAPORE 528886 PH: +65-6788-6668 FAX: +65-6788-0988 VISHAY S.A. 199, BD DE LA MADELEINE 06003 NICE, CEDEX 1 FRANCE PH: +33-4-9337-2727 FAX: +33-4-9337-2726 P.R. CHINA UNITED KINGDOM VISHAY CHINA CO., LTD. 15D, SUN TONG INFOPORT PLAZA 55 HUAI HAI WEST ROAD SHANGHAI 200030 P.R. CHINA PH: +86-21-22315555 FAX: +86-21-22315551 VISHAY LTD. SUITE 6C, TOWER HOUSE ST. CATHERINE’S COURT SUNDERLAND ENTERPRISE PARK SUNDERLAND SR5 3XJ UNITED KINGDOM PH: +44-191-516-8584 FAX: +44-191-549-9556 JAPAN VISHAY JAPAN CO., LTD. SHIBUYA PRESTIGE BLDG. 4F 3-12-22, SHIBUYA SHIBUYA-KU TOKYO 150-0002 JAPAN PH: +81-3-5466-7150 FAX: +81-3-5466-7160 SELECTOR GUIDE 8/8 VMN-SG2205-1502 THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000