AOZ1336DI

AOZ1336DI Single Channel Smart Load Switch General Description Features The AOZ1336DI is a single channel load switch with typical 27mΩ on-resistance in a small package. It contains an n-channel MOSFET for up to 5.5V input voltage operation and 4A current channel with 2.5V to 5V bias supply. The load switch is independently controlled by a low voltage control signal through ON pin.  0.8V to 5.5V input voltage range  4A continuous current  Low RDS(ON) internal NFETs  50µA low quiescent current The AOZ1336DI integrates an internal 220Ω load resistor for quick output discharge when load switch is off. The optional external capacitor connected CT for output slew rate control.  Adjustable rise time  2.5V to 5V bias voltage  Integrated quick output discharge resistor  Thermally enhanced 2mm x 2mm DFN-8L package The AOZ1336DI is available in a 2mm x 2mm DFN-8L package with bottom thermal pad and is rated over a -40°C to +85°C ambient temperature range. – 27mΩ at VBIAS = 2.5V to 5V & VBIAS > VIN Applications  Portable computers  Ultrabooks  Tablet PC  Set top boxes  LCD TVs  Telecom/Networking/Datacom equipment  SSD  Consumer electronics Typical Application VIN IN VOUT OUT CIN CL IN OUT AOZ1336DI ON ON CT OFF CT VBIAS GND VBIAS CBIAS Rev. 1.0 January 2014 www.aosmd.com Page 1 of 14 AOZ1336DI Ordering Information Part Number Temperature Range Package Environmental AOZ1336DI -40°C to +85°C 2mm x 2mm DFN-8L Green All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards. Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information. Pin Configuration IN 1 8 OUT IN 2 7 OUT ON 3 6 CT VBIAS 4 5 GND EPAD 2mm x 2mm DFN-8 (Top View) Pin Description Pin Number Pin Name Pin Function 1, 2 IN Load Switch Input. Bypass IN and GND with ceramic capacitor. 3 ON Enable Input. Load switch is on when ON is pulled high. Load switch is off when ON is pulled low. 4 VBIAS 5 GND 6 CT 7, 8 OUT EPAD Exposed Pad Rev. 1.0 January 2014 Supply input for the device. Ground. Load switch slew rate control. Load switch output. The exposed bottom pad must be connected to GND. www.aosmd.com Page 2 of 14 AOZ1336DI Functional Block Diagram IN OUT IN OUT Typical Performance Characteristics Charge Pump ON Control Logic Timing Diagram CT VBIAS Rev. 1.0 January 2014 GND www.aosmd.com Page 3 of 14 AOZ1336DI Absolute Maximum Ratings Recommend Operating Ratings Exceeding the Absolute Maximum ratings may damage the device. The device is not guaranteed to operate beyond the Maximum Operating Ratings. Parameter Rating IN, ON, VBIAS, OUT to GND Parameter -0.3V to 6V Junction Temperature (TJ) +150°C Storage Temperature (TS) -65°C to +150°C ESD Rating HBM/CDM 2kV/1kV Rating Supply Voltage (VIN) 5.5V Ambient Temperature (TA) -40°C to +85°C Package Thermal Resistance 2x2 DFN-8 (JC) 2x2 DFN-8 (JA) 12°C/W 90°C/W Electrical Characteristics TA = 25°C, VBIAS = 5V, unless otherwise specified. Specifications in BOLD indicate a temperature range of -40°C to +85°C. Symbol VIN VBIAS Iq IOFF ID IPLS IINOFF Parameter Conditions Typ. Max. Units IN Supply Voltage 0.8 VBIAS V VBIAS Supply Voltage 2.5 5.5 V Quiescent Supply Current of VBIAS IOUT = 0V, VON = 0V, VIN = VON = 5V 50 75 µA VBIAS Shutdown Supply Current VON = 0V, VOUT = 0V 1 2 µA Maximum Continuous Current VIN = VON = 5V 4 A Maximum Pulsed Switch Current VIN = VON = 5V Pulse < 300µs, 2% Duty Cycle 6 A VON = 0V, VOUT = 0V, VIN = 5V 2.1 8 VON = 0V, VOUT = 0V, VIN = 3.3V 0.3 3 VON = 0V, VOUT = 0V, VIN = 1.8V 0.07 2 VON = 0V, VOUT = 0V, VIN = 0.8V 0.04 1 IN Shutdown Supply Current ON Leakage Current VON = 5V VONH ON High Level Voltage VIN = 0.8V to 5V VONL ON Low Level Voltage VIN = 0.8V to 5V ION Min. 1 1.2 µA µA V 0.5 V Switching ON Resistance RON Switch ON-State Resistance IOUT = -200mA, VIN = 0.8V to 5V 27 33 mΩ RPD Output Pull-Down Resistance IOUT = 15mA, VIN = 5V, VON = 0V 220 300 Ω Note: Greater on-resistance if VIN > VBIAS. Rev. 1.0 January 2014 www.aosmd.com Page 4 of 14 AOZ1336DI Switching Characteristics VON 50% 50% t OFF tON 90% VOUT 90% tD-ON 50% 50% 10% 1% tR 10% tF Test conditions: TA = 25°C, CIN = 1µF, CT = 1nF, CL = 0.1µF, RL = 10Ω (unless otherwise specified). Symbol Parameter Min. Typ. Max. Units VIN = 5V, VBIAS = VON = 5V tON Turn-ON Time 1420 tD-ON Turn-ON Delay time 450 tR Turn-ON Rise Time 1740 tOFF tF Turn-OFF Time 7.7 Turn-OFF Fall Time 2.5 µs VIN = 0.8V, VBIAS = VON = 5V Turn-ON Time 620 tD-ON Turn-ON Delay time 450 tR Turn-ON Rise Time 280 tON tOFF tF Turn-OFF Time 89 Turn-OFF Fall Time 10 µs VIN = 2.5V, VBIAS = VON = 2.5V tON Turn-ON Time 2100 tD-ON Turn-ON Delay time 780 tR Turn-ON Rise Time 2200 tOFF tF Turn-OFF Time µs 8 Turn-OFF Fall Time 2.5 VIN = 0.8V, VBIAS = VON = 2.5V Turn-ON Time 1250 tD-ON Turn-ON Delay time 730 tR Turn-ON Rise Time 750 tON tOFF tF Turn-OFF Time 76 Turn-OFF Fall Time 10 Rev. 1.0 January 2014 www.aosmd.com µs Page 5 of 14 AOZ1336DI Typical Characteristics Quiescent Current vs. VBIAS RPD vs. VIN (VIN=VBIAS, VON=5V) 70 60 -40ºC 228 25ºC 70ºC 85ºC 227 226 RPD (Ω) 50 IBIAS (μA) (VBIAS=5.5V) 229 40 225 224 -40ºC 223 30 25ºC 70ºC 85ºC 222 20 221 220 10 2.5 2.8 3.0 3.3 3.5 3.8 4.0 4.3 VBIAS (V) 4.5 4.8 5.0 0.8 5.3 5.5 1.3 1.8 RDSON vs. VIN 3.3 3.8 VIN (V) 4.3 4.8 5.3 5.8 (TA=25ºC, VOUT=2V) 2.5 40 2.0 35 VOUT (V) RSDON (mΩ) 2.8 VOUT vs. VON (VBIAS=2.5V, IOUT=-200mA) 45 2.3 30 1.5 1.0 25 VBIAS = 2.5V -40ºC 20 0.5 25ºC 70ºC 85ºC VBIAS = 3.3V VBIAS = 5.0V VBIAS = 5.5V 0 15 0.8 1.1 1.4 1.7 VIN (V) 2.0 2.3 2.6 0.5 0.7 0.9 VON (V) 1.1 1.3 RDSON vs. VIN (VBIAS=5.5V, IOUT=-200mA) 40 RDSON (mΩ) 35 30 25 20 -40ºC 25ºC 70ºC 85ºC 15 10 0.8 1.1 Rev. 1.0 January 2014 1.4 1.7 VIN (V) 2.0 2.3 2.6 www.aosmd.com Page 6 of 14 AOZ1336DI Typical Characteristics (Continued) tON vs. VIN tD-ON vs. VIN (VBIAS=2.5V) 2500 (VBIAS=5.5V) 500 450 400 2000 1500 tD-ON (μs) tON (μs) 350 1000 300 250 200 150 -40ºC 500 -40ºC 100 25ºC 70ºC 85ºC 25ºC 70ºC 85ºC 50 0 0 0.8 1.0 1.2 1.4 1.6 1.8 VIN (V) 2.0 2.2 2.4 0.8 2.6 1.2 1.6 2.0 2.4 tON vs. VIN 3.2 3.6 VIN (V) 4.0 4.4 4.8 5.2 5.6 tR vs. VIN (VBIAS=5.5V) 1600 2.8 (VBIAS=2.5V) 2500 1400 2000 1200 tR (μs) tON (μs) 1000 800 1500 1000 600 400 -40ºC 200 25ºC 70ºC 85ºC -40ºC 500 25ºC 70ºC 85ºC 0 0 0.8 1.2 1.6 2.0 2.4 1200 2.8 3.2 3.6 VIN (V) 4.0 4.4 4.8 0.8 5.2 5.6 1.0 1.2 1.4 1.6 1.8 VIN (V) tD-ON vs. VIN tR vs. VIN) (VBIAS=2.5V) (VBIAS=5.5V) 2000 2.0 2.2 2.4 2.6 1800 1000 1600 1400 tR (μs) tD-ON (μs) 800 600 1200 1000 800 400 600 -40ºC 200 -40ºC 25ºC 70ºC 85ºC 400 25ºC 70ºC 85ºC 200 0 0 0.8 1.0 1.2 Rev. 1.0 January 2014 1.4 1.6 1.8 VIN (V) 2.0 2.2 2.4 2.6 www.aosmd.com 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 VIN (V) 4.0 4.4 4.8 5.2 5.6 Page 7 of 14 AOZ1336DI Typical Characteristics (Continued) tOFF vs. VIN tOFF vs. VIN (VBIAS=2.5V) 90 80 70 -40ºC 90 -40ºC 25ºC 70ºC 85ºC 80 25ºC 70ºC 80ºC 70 tOFF (μs) 60 tOFF (μs) (VBIAS=5.5V) 100 50 40 30 60 50 40 30 20 20 10 10 0 0 0.8 1.0 1.2 1.4 1.6 1.8 VIN (V) 2.0 2.2 2.4 0.8 2.6 1.2 1.6 2.0 2.4 tF vs. VIN 4.4 4.8 5.2 5.6 (VBIAS=5.5V) 14 -40ºC -40ºC 12 12 25ºC 70ºC 85ºC 10 25ºC 70ºC 85ºC 10 8 tF (μs) tF (μs) 4.0 tF vs. VIN (VBIAS=2.5V) 14 2.8 3.2 3.6 VIN (V) 6 8 6 4 4 2 2 0 0 0.8 1.0 1.2 Rev. 1.0 January 2014 1.4 1.6 1.8 VIN (V) 2.0 2.2 2.4 2.6 www.aosmd.com 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 VIN (V) 4.0 4.4 4.8 5.2 5.6 Page 8 of 14 AOZ1336DI Functional Characteristics Turn-ON & Turn-ON Rise Times Turn-ON & Turn-ON Rise Times (VIN=0.8V, VBIAS=5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) (VIN=5V, VBIAS=5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) VON (5V/div) VON (5V/div) VOUT (200mV/div) VOUT (2V/div) Turn-ON & Turn-ON Rise Times Turn-ON & Turn-ON Rise Times (VIN=0.8V, VBIAS=2.5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) (VIN=2.5V, VBIAS=2.5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) VON (5V/div) VON (5V/div) VOUT (200mV/div) VOUT (1V/div) Turn-OFF & Turn-OFF Fall Times Turn-OFF & Turn-OFF Fall Times (VIN=0.8V, VBIAS=5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) (VIN=5V, VBIAS=5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) Rev. 1.0 January 2014 VON (5V/div) VON (5V/div) VOUT (1V/div) VOUT (200mV/div) www.aosmd.com Page 9 of 14 AOZ1336DI Functional Characteristics (Continued) Turn-OFF Fall Times Turn-OFF Fall Times (VIN=0.8V, VBIAS=2.5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) (VIN=2.5V, VBIAS=2.5V, CIN=1μF, CT=1nF, CL=0.1μF, RL=10Ω) VON (5V/div) VON (5V/div) VOUT (1V/div) VOUT (200mV/div) Turn-ON & Turn-OFF @ IOUT = 4A Turn-ON & Turn-OFF @ IOUT = 4A (VIN=2.5V, VBIAS=5V, CIN=4.7μF, CL=4.7μF) (VIN=5V, VBIAS=5V, CIN=4.7μF, CL=4.7μF) Rev. 1.0 January 2014 VON (5V/div) VON (5V/div) VOUT (2V/div) VOUT (1V/div) IOUT (2A/div) IOUT (2A/div) www.aosmd.com Page 10 of 14 AOZ1336DI Detailed Description Applications Information ON/OFF Control The basic AOZ1336DI application circuit is shown in the first page. Component selection is explained below. The AOZ1336DI is enabled when the ON pin is on active high with 1.2V or above voltage. The device is disabled when the ON pin voltage is 0.5V or lower. The EN input is compatible with both TTL and CMOS logic. VBIAS Voltage Range For optimal on-resistance of load switch, make sure VIN ≤ VBIAS and VBIAS is within the voltage range from 2.5V to 5.5V. On-resistance of load switch will be higher if VIN > VBIAS. Resistance curves of a typical sample device at different VBIAS and different VIN are shown as below. 60 VBIAS = 2.5V RDSON (mΩ) 55 VBIAS = 3.3V VBIAS = 3.6V VBIAS = 4.2V VBIAS = 5.0V VBIAS = 5.5V 50 40 35 30 25 1.0 1.5 2.0 Output Capacitor Selection A capacitor of 0.1μF or higher value is recommended to be place between the OUT pins and GND. The switching times are affected by the capacitance. A larger capacitor makes the initial turn-on transient smoother. This capacitor must be large enough to supply a fast transient load in order to prevent the output from dropping. Thermal Considerations To ensure proper operation, the maximum junction temperature of the AOZ1336DI should not exceed 150°C. Several factors attribute to the junction temperate rise: load current, MOSFET on-resistance, junction-to-ambient thermal resistance, and ambient temperature. The maximum load current can be determined by: 45 0.5 Input Capacitor Selection A capacitor of 1μF or higher value is recommended to be place close to the IN pins of AOZ1336DI. This capacitor can reduce the voltage drop caused by the in-rush current during the turn-on transient of the load switch. A higher value capacitor can be used to further reduce the voltage drop during high-current application. 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VIN (V) I LOAD  MAX  = Adjustable Rise Time The slew rate of VOUT can be adjusted by external capacitors connected to the corresponding CT and GND pins. Multiply the input voltage and the slew rate to obtain the rise time. The table below shows rise times, which are measured on a typical device at VBIAS = 5V. CT (pF) Rise Time (µs) 10%~90%, CL=0.1µF, CIN1µF, RL=10Ω (Typical values at 25°C, 25V X7R 10% Ceramic Cap) VIN=5V 3.3V 1.8V 1.5V 1.2V 1.05V 0.8V 0 58 42 33 29 26 24 22 220 372 226 130 104 91 81 66 470 740 486 255 198 169 148 115 1000 1607 1021 570 452 366 322 252 2200 3532 2447 1351 1139 904 785 664 4700 7275 4708 2802 2277 1920 1663 1286 10000 16640 10700 6372 5176 4425 3868 3098 Rev. 1.0 January 2014 T J  MAX  – T C ---------------------------------- JC  R DSON It is noted that the maximum continuous load current is 4A. Layout Guidelines Good PCB is important for improving the thermal performance of AOZ1336DI. Place the input and output bypass capacitors close to the IN and OUT pins. The input and output PCB traces should be as wide as possible for the given PCB space. Use a ground plane to enhance the power dissipation capability of the device. www.aosmd.com Page 11 of 14 AOZ1336DI Package Dimensions, DFN2x2_8L, EP1_S b D e R Pin#1 Identification Option 1 E1 E L D1 TOP VIEW A c BOTTOM VIEW A1 Seating Plane SIDE VIEW Dimensions in millimeters RECOMMENDED LAND PATTERN 0.50 0.25 0.25 0.85 0.90 1.70 0.30 Symbols A A1 Min. 0.70 0.00 Nom. 0.75 0.02 b c D 0.18 0.25 D1 E E1 e L 1.50 UNIT: mm 1.90 1.10 1.90 0.50 Max. 0.80 0.05 0.30 0.20 REF 2.00 2.10 1.50 1.60 2.00 2.10 0.90 1.00 0.50 BSC 0.20 0.30 0.40 Dimensions in inches Symbols A A1 Min. 0.028 0.000 Nom. 0.030 0.001 b c D 0.007 0.010 0.075 0.043 D1 E E1 e 0.075 0.020 L 0.008 Max. 0.031 0.002 0.012 0.008 REF 0.079 0.083 0.059 0.063 0.079 0.083 0.035 0.039 0.020 BSC 0.012 R aaa 0.20 0.15 R aaa 0.008 0.006 bbb ccc 0.10 0.10 bbb ccc 0.004 0.004 ddd 0.08 ddd 0.003 0.016 Notes: 1. Dimensions and tolerances conform to ASME Y14.5M-1994. 2. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. 3. Dimension b applied to metallized terminal and is measured between 0.10mm and 0.30mm from the terminal tip. If the terminal has the optional radius on the other end of the terminal, dimension b should not be measured in that radius area. 4. Coplanarity ddd applies to the terminals and all other bottom surface metallization. Rev. 1.0 January 2014 www.aosmd.com Page 12 of 14 AOZ1336DI Tape and Reel Dimensions, DFN2x2_8L, EP1_S Carrier Tape T P1 D1 P2 E1 E2 E B0 P0 D0 A0 K0 Feeding Direction UNIT: mm Package DFN 2x2 A0 B0 K0 2.30 2.30 ±0.20 ±0.20 1.00 ±0.20 D0 D1 E 1.00 1.50 MIN. +0.10/-0.0 E1 8.00 1.75 +0.30/-0.10 ±0.10 Reel E2 P0 P1 P2 T 3.50 ±0.05 4.00 ±0.20 4.00 ±0.20 2.00 ±0.05 0.30 ±0.05 W1 S G K N M V R H W UNIT: mm Tape Size Reel Size M W1 H K S G N W 8mm ø178 ø178.00 ø70.50 9.00 11.80 ø13.00 10.25 2.40 ø9.80 ±1.00 ±1.00 ±0.50 ±1.10 +0.5/-0.2 ±0.20 ±0.10 R N/A V N/A Leader / Trailer & Orientation Unit Per Reel: 3000pcs Trailer Tape 300mm Min. OR 75 Empty Pockets Rev. 1.0 January 2014 Components Tape Orientation in Pocket www.aosmd.com Leader Tape 500mm Min. OR 125 Empty Pockets Page 13 of 14 AOZ1336DI Package Marking AOZ1336DI (DFN2x2-8) B C XX Part Number Code Y W LT Week & Year Code Assembly Location Code Option Code Assembly Lot Code LEGAL DISCLAIMER Applications or uses as critical components in life support devices or systems are not authorized. AOS does not assume any liability arising out of such applications or uses of its products. AOS reserves the right to make changes to product specifications without notice. It is the responsibility of the customer to evaluate suitability of the product for their intended application. Customer shall comply with applicable legal requirements, including all applicable export control rules, regulations and limitations. AOS' products are provided subject to AOS' terms and conditions of sale which are set forth at: http://www.aosmd.com/terms_and_conditions_of_sale LIFE SUPPORT POLICY ALPHA AND OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. Rev. 1.0 January 2014 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.aosmd.com Page 14 of 14