CMOS LDO Regulators for Portable Equipments 3ch CMOS LDO Regulators BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX No.11020EFT06 ●Description BU6650NUX, BU6651NUX, BU6652NUX, BU6653NUX, BU6654NUX, BU6655NUX are high-performance 3ch FULL CMOS regulator with 200-mA outputs, which is mounted on small package VSON008X2030(2.0 mm 3.0 mm 0.6 mm). It has excellent noise characteristics and load responsiveness characteristics despite its low circuit current consumption of 120 A. It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules. ●Features 1) High-accuracy output voltage of 1% (25 mV on 1.5 V & 1.8 V products) 2) High ripple rejection: 70 dB (Typ., 1 kHz, VOUT≦1.8 V) 3) Compatible with small ceramic capacitor (CIN=2.2F, Co=1.0 F) 4) Low current consumption: 120 A 5) ON/OFF control pin (STBY) of output voltage 6) With built-in over current protection circuit and thermal shutdown circuit 7) With built-in output discharge circuit 8) Adopting small package VSON008X2030 ●Applications Battery-powered portable equipment, etc. ●Line up matrix ■ 200 mA BU665□NUX Series Product Name BU6650NUX BU6651NUX BU6652NUX BU6653NUX BU6654NUX BU6655NUX VOUT1 VOUT2 VOUT3 Package 2.8V 2.8V 2.8V 2.8V 3.3V 3.3V 2.8V 1.8V 2.8V 1.8V 1.8V 2.8V 1.8V 1.5V 1.5V 1.8V 1.5V 1.8V VSON008X2030 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 1/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Absolute maximum rating Parameter Maximum applied power voltage Power dissipation Symbol Ratings VMAX -0.3 ~ Unit +6.0 V 1 Pd 660* MW Maximum junction temperature TjMAX +125 °C Operational temperature range Topr -40 ~ +85 °C Storage temperature range Tstg -55 ~ +125 °C *1 PCB (70 mm 70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented. Reduced to 6.6 mW/C when used at Ta=25C or higher. ●Recommended operating range (Do not exceed Pd.) Parameter Input power supply voltage Maximum output current Symbol Ratings VIN 2.5 ~ IMAX Unit 5.5 V 200 mA ●Recommended operating conditions Parameter Symbol Ratings Min. Typ. Max. Unit Conditions Input capacitor CIN 1.0* 2 2.2 － μF A ceramic capacitor is recommended. Output capacitor CO 0.5*2 1.0 － μF A ceramic capacitor is recommended. *2 Set the capacity value of the capacitor so that it does not fall below the minimum value, taking temperature characteristics, DC device characteristics, and change with time into consideration. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Electrical characteristics (Ta=25C, VIN=VOUT+1.0 V (VIN=3.5 V on VOUT=1.8 V and1.5 V products), STBY=1.5 V, CIN=2.2 F, CO=1.0 F, unless otherwise specified) Limits Parameter Symbol Unit Min. Output voltage Typ. Max. VOUT ×0.99 VOUT -25mV VOUT VOUT ×1.01 VOUT +25mV V IIN1 - 40 95 μA IIN2 - 80 190 μA IIN3 - 120 285 μA ISTBY - - 1 μA VOUT Operating current Circuit current (at STBY) IOUT=10 μA, VOUT≥2.5 V IOUT=10 μA, VOUT<2.5 V 70 Ripple rejection RR 55 - dB 65 Input / Output voltage difference VSAT - 360 720 - 300 600 - 220 460 Conditions mV IOUT=0mA STBY×1=1.5V, STBY×2=0V IOUT=0mA STBY×2=1.5V, STBY×1=0V IOUT=0mA STBY×3=1.5V STBY=0 V VRR=-20dBv, fRR=1kHz, IOUT=10 mA 1.5 V≦VOUT≦1.8 V VRR=-20dBv, fRR=1 kHz, IOUT=10 mA 2.5 V≦VOUT VOUT=2.8V (VIN=0.98*VOUT, IOUT=200 mA) VOUT=3.3V (VIN=0.98*VOUT, IOUT=200 mA) VOUT=3.3V (VIN=0.98*VOUT, IOUT=150 mA) VIN=VOUT+1.0 V to 5.5 V, IOUT=10 μA Line regulation VDL - 2 20 mV Load regulation VDLO - 10 80 mV IOUT=0.01 mA to 100 mA Over current protection detection current ILMAX 220 350 700 mA Vo=VOUT*0.8 Output short-circuit current ISHORT 20 70 150 mA Vo=0 V Output discharge resistance RDSC 20 50 80 Ω Standby pull down resistance RSTB 500 1000 2000 kΩ ON VSTBH 1.5 - 5.5 V Output Voltage ON OFF VSTBL -0.3 - 0.3 V Output Voltage OFF VIN=4.0 V, STBY=0 V Control Voltage * This product does not have radiation-proof design. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 3/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Block diagram, recommended circuit diagram, and package dimensions (VSON008X2030) VIN Device Mark a CIN VREF STBY1 VOUT1 STBY COUT Lot No. OCP VREF STBY2 VOUT2 STBY COUT OCP VREF STBY3 VOUT3 STBY COUT OCP Fig.1 Block diagram Fig.2 Package dimensions ●Pin configuration diagram PIN No. 1 PIN NAME VIN 2 STBY1 3 STBY2 4 STBY3 5 6 7 8 GND VOUT3 VOUT2 VOUT1 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. DESCRIPTION INPUT Pin OUTPUT1 CONTROL Pin ( High : ON, Low : OFF ) OUTPUT2 CONTROL Pin ( High : ON, Low : OFF ) OUTPUT3 CONTROL Pin ( High : ON, Low : OFF ) GROUND Pin OUTPUT3 Pin OUTPUT2 Pin OUTPUT1 Pin 4/21 Device Mark Series Name Device Mark a BU6650NUX U6650 BU6651NUX U6651 BU6652NUX U6652 BU6653NUX U6653 BU6654NUX U6654 BU6655NUX U6655 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Input/Output terminal equivalent circuit schematic 6,7,8pin (VOUT) 5pin (GND) 2,3,4pin (STBY) VIN 1pin (VIN) VIN VOUT STBY Fig.3 Input / Output equivalent circuit Capacity value of ceramic capacitor - DC bias characteristics (Example) 10-V withstand voltage B1characteristics GRM188B11A105KA61D 10 0 -10 Capacitance Change [%] ●About input/output capacitor It is recommended to place a capacitor as close as possible to the pins between the input terminal and GND or between the output terminal and GND. The capacitor between the input terminal and GND becomes valid when source impedance increases or when wiring is long. The larger the capacity of the output capacitor between the output terminal and GND is, the better the stability and characteristics in output load fluctuation become. However, please check the status of actual implementation. Ceramic capacitors generally have variation, temperature characteristics, and direct current bias characteristics and the capacity value also decreases with time depending on the usage conditions. It is recommended to select a ceramic capacitor upon inquiring about detailed data of the related manufacturer. 10-V withstand voltage B characteristics -20 6.3-V withstand voltage B characteristics -30 10-V withstand voltage F characteristics -40 -50 -60 4-V withstand voltage X6S characteristics 10-V withstand voltage F characteristics -70 -80 -90 -100 0 0.5 1 1.5 2 2.5 3 3.5 DC Bias Voltage [V] Fig.4 Capacity – bias characteristics 100 ESR [Ω] ●About the equivalent series resistance (ESR) of a ceramic capacitor Capacitors generally have ESR (equivalent series resistance) and it operates stably in the ESR-IOUT area shown on the right. Since ceramic capacitors, tantalum capacitors, electrolytic capacitors, etc. generally have different ESR, please check the ESR of the capacitor to be used and use it within the stability area range shown in the right graph for evaluation of the actual application. Unstable area 10 Stability area 1 0.1 0.01 0 50 100 150 200 IOUT [mA] Fig.5 Stability area characteristics (Example) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 5/21 2011.09 - Rev.F 4 BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Reference data total device (Ta=25ºC unless otherwise specified.) 30.00 20.00 10.00 0.00 -40 -15 10 35 60 100.00 150.00 80.00 120.00 Input Current (uA) 40.00 Input Current (uA) Input Current (uA) 50.00 60.00 40.00 20.00 0.00 -40 85 90.00 60.00 30.00 0.00 -15 10 35 60 85 -40 -15 10 Fig. 7 Iin2 vs. Temp Fig. 6 Iin1 vs. Temp 35 60 85 Temp (°C) Temp (°C) Temp (°C) Fig. 8 Iin3 vs. Temp 3.50 1.000 VIN=3.8V 0.900 3.00 Output Voltage (V) Gnd Current (uA) 0.800 0.700 0.600 0.500 0.400 0.300 VIN=3.8V STBY=0V 0.200 0.100 0.000 2.50 2.00 1.50 Temp.=85°C Temp.=25°C Temp.=-40°C 1.00 0.50 -0.100 -40 -15 10 35 60 85 0.00 0 Temp. (°C) 0.5 1 1.5 STBY Voltage (V) Fig. 9 Istby vs Temp (STBY) Fig. 10 STBY Threshold ●Reference data Vo=3.3V (Ta=25ºC unless otherwise specified.) 3.5 3.34 2.5 2.0 IO=0uA IO=100uA IO=50mA IO=200mA 1.5 1.0 0.5 Temp.=25°C VIN = STBY IO=0uA IO=100uA IO=50mA IO=200mA 3.33 3.32 3.31 3.30 3.29 3.28 60 40 Temp=25°C VIN = STBY 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 3.2 3.3 3.4 Vin Voltage (V) 3.5 3.6 0 3.7 1 1.5 2 2.5 110 0.15 Temp.=-40°C 0.10 VIN=0.98 x VOUT STBY = 1.5V 0.05 Temp.=85°C 8 Gnd Current (uA) STBY Current (uA) Temp.=25°C 0.20 Temp.=25°C 6 Temp.=-40°C 4 0.1 0.15 0.2 Fig. 14 Dropout Voltage www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 5.5 Temp.=85°C Temp.=25°C 90 Temp.=-40°C 80 70 60 VIN = 4.3V STBY = 1.5V 50 Output Current (A) 5 100 2 0 0.05 4.5 VIN = STBY 0.00 0 4 120 10 Temp.=85°C 3.5 Fig. 13 Circuit Current IGND 0.30 0.25 3 Vin Voltage (V) Fig. 12 Line Regulation 0.35 Dropout Voltage (V) 0.5 Vin Voltage (V) Fig. 11 Output Voltage IO=0uA VIN = STBY 0 3.25 0 Temp.=-40°C Temp.=25°C Temp.=85°C 20 3.27 3.26 0.0 80 Gnd Current (uA) Output Voltage (V) Output Voltage (V) 100 3.35 3.0 40 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 V STBY Voltage (V) Fig. 15 STBY Input Current 6/21 5 5.5 0 0.05 0.1 0.15 Output Current (A) Fig. 16 IOUT - IGND 2011.09 - Rev.F 0.2 BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note 3.50 3.35 3.00 Temp.=25°C Temp.=-40°C 3.31 3.30 3.29 3.28 Temp.=85°C 3.27 VIN = 4.3V STBY = 1.5V 3.26 3.00 VIN=3.8V VIN=5.5V 2.50 VIN=4.3V 2.00 1.50 1.00 STBY = 1.5V Temp=25℃ 0.50 3.25 Output Voltage (V) 3.32 Output Voltage (V) 3.33 Output Voltage (V) 3.50 VIN=4.3V 3.34 2.50 2.00 1.50 0.50 0.00 0 0.05 0.1 0.15 0.00 0 0.2 0.1 0.2 0.3 0.4 0.5 0.6 0 Fig. 17 Load Regulation 1.5 Fig. 19 STBY Threshold 50.00 1.000 3.34 0.900 3.32 3.31 3.30 3.29 3.28 VIN=4.3V STBY=1.5V Io=0.1mA 3.27 3.26 0.800 40.00 30.00 20.00 VIN=4.3V STBY=1.5V Io=0mA 10.00 3.25 Gnd Current (uA) 3.33 Gnd Current (uA) Output Voltage (V) 1 STBY Voltage (V) Fig. 18 OCP Threshold 3.35 0.700 0.600 0.500 0.400 0.300 -15 10 35 60 85 0.100 0.000 -0.100 -40 Temp. (°C) -15 10 35 60 85 -40 Fig. 21 IGND vs Temp 40 30 Vin= 4.3V Io=10mA Ta = 25℃ 60 f= 0 .1 kHz 50 f= 1 0 kHz 40 30 f= 1 0 0 kHz 20 10 Co=1.0μF Cin=none Iout=10mA temp=25℃ 0 0 3.3 10 100 1000 Frequency (kHz) Fig. 23 Ripple Rejection VS Freq. 4.3 Fig. 24 Ripple Rejection VS VIN Fig. 26 Load Response www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 5.3 Input Voltage VIN[V] O u tpu t N o ise D e n sity [μ V / √ H z ] Ripple Rejection [dB] 50 60 85 1.8 f= 1 kHz 70 60 35 Fig. 22 IGND vs Temp (STBY) 80 70 1 10 Temp. (°C) 80 10 -15 Temp. (°C) Fig. 20 VOUT vs Temp 20 VIN=4.3V STBY=0V 0.200 0.00 -40 R ipple R e je c tio n (dB ) 0.5 Output Current (A) Output Current (A) 0.1 Temp.=85°C Temp.=25°C Temp.=-40°C 1.00 1.6 Co=1.0μF Cin=1.0μF Iout=10mA temp=25℃ 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0.1 1 10 Frequency f [kHz] 100 Fig. 25 Output Noise Spectral Density VS Freq. Fig. 27 Load Response 7/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note Fig. 28 Load Response Fig. 29 Load Response Fig. 30 Load Response Current Pulse=10kHz Fig. 31 Load Response Current Pulse=10kHz Fig. 33 Load Response Current Pulse=100kHz Fig. 32 Load Response Current Pulse=100kHz www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 8/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note Fig. 34 Start Up Time Iout = 0mA Fig. 37 Start Up Time(STBY=VIN) Iout = 200mA www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Fig. 35 Start Up Time Iout = 200mA Fig. 38 Discharge Time Iout = 0mA 9/21 Fig. 36 Start Up Time (STBY=VIN) Iout = 0mA Fig. 39 VIN Response Iout = 10mA 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Reference data Vo=2.8V (Ta=25ºC unless otherwise specified.) 3.5 IO=0uA 2.84 2.5 2.0 IO=0uA IO=100uA IO=50mA IO=200mA 1.5 1.0 Temp.=25°C VIN = STBY 0.5 0.0 IO=0uA IO=100uA IO=50mA IO=200mA 2.83 2.82 2.81 2.80 2.79 2.78 60 40 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Temp.=25°C 2.76 VIN = STBY 5.5 0 2.7 2.8 2.9 Vin Voltage (V) 3 3.1 3.2 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Vin Voltage (V) Fig. 40 Output Voltage Vin Voltage (V) Fig. 42 Circuit Current IGND Fig. 41 Line Regulation 10 0.40 120 0.35 110 Temp.=85°C 0.25 Temp.=25°C 0.20 Temp.=-40°C 0.15 0.10 8 Temp.=85°C Temp.=25°C 6 Temp.=-40°C 4 Temp.=85°C 100 90 Temp.=25°C 80 70 Temp.=-40°C 60 2 VIN=0.98 x VOUT 0.05 Gnd Current (uA) 0.30 STBY Current (uA) Dropout Voltage (V) Temp.=-40°C Temp.=25°C Temp.=85°C 20 2.77 2.75 0 VIN = STBY 80 Gnd Current (uA) Output Voltage (V) Output Voltage (V) 100 2.85 3.0 VIN = 3.8V 50 VIN = STBY STBY = 1.5V STBY = 1.5V 40 0 0.00 0 0.05 0.1 0.15 0 0.2 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 5.5 0.05 Fig. 44 STBY Input Current Fig. 43 Dropout Voltage 0.15 0.2 Output Currnt (A) STBY Voltage (V) Output Current (A) 0.1 Fig. 45 IOUT - IGND 2.85 Output Voltage (V) Output Voltage (V) 2.84 2.83 2.82 2.81 2.80 2.79 2.78 VIN=3.8V STBY=1.5V Io=0.1mA 2.77 2.76 2.75 -40 -15 10 35 60 85 Temp. (°C) Fig. 47 OCP Threshold 80 80 1.6 f= 0 .1 kHz 70 60 Ripple Rejection [dB] Ripple Rejection (dB ) 70 Fig. 48 VOUT vs Temp 50 40 30 20 Vin= 3.8V Io=10mA Ta = 25℃ 10 1 10 f= 1 kH z 50 f= 1 0 kH z 40 f= 1 0 0 kH z 30 Co=1.0μF Cin=none Iout=10mA temp=25℃ 20 10 0 0 0.1 60 100 1000 Frequency (kHz) Fig. 49 Ripple Rejection VS Freq. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2.8 3.8 4.8 Input Voltage VIN[V] Fig. 50 Ripple Rejection VS VIN 10/21 O utput N oise D ensity [μ V /√ H z] Fig. 46 Load Regulation Co=1.0μF Cin=1.0μF Iout=10mA temp=25℃ 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0.1 1 10 Frequency f [kHz] 100 Fig. 51 Output Noise Spectral Density VS Freq. 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note Fig. 52 Load Response Fig. 53 Load Response Fig. 54 Load Response Fig. 55 Load Response ⇔ ⇔ Fig. 56 Load Response Current Pulse=10kHz Fig. 57 Load Response Current Pulse=10kHz ⇔ ⇔ Fig. 58 Load Response Current Pulse=100kHz www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Fig. 59 Load Response Current Pulse=100kHz 11/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note Fig. 60 Start Up Time Iout = 0mA Fig. 63 Start Up Time(STBY=VIN) Iout = 200mA www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Fig. 61 Start Up Time Iout = 200mA Fig. 64 Discharge Time Iout = 0mA 12/21 Fig. 62 Start Up Time (STBY=VIN) Iout = 0mA Fig. 65 VIN Response Iout = 10mA 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Reference data Vo=1.8V (Ta=25ºC unless otherwise specified.) 3.5 1.84 2.5 2.0 1.5 IO=0uA IO=100uA IO=50mA IO=200mA 1.0 0.5 Temp=25°C VIN = STBY IO=0uA IO=100uA IO=50mA IO=200mA 1.83 1.82 1.81 1.80 1.79 1.78 1.77 40 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Temp=-40°C Temp=25°C Temp=85°C 20 1.75 1.85 1.95 Vin Voltage (V) 2.05 2.15 2.25 0 2.35 0.5 1 1.5 2 Fig. 67 Line Regulation 3 3.5 4 4.5 5 5.5 Fig. 68 Circuit Current IGND 120 10 140 2.5 Vin Voltage (V) Vin Voltage (V) Fig. 66 Output Voltage IO=0uA VIN = STBY 0 1.75 0 110 100 80 60 Temp=-40°C Temp=25°C Temp=85°C 40 Temp=25°C 6 Temp=-40°C 4 1 1.5 2 2.5 3 3.5 4 4.5 5 80 70 Temp=-40°C 60 VIN = 3.5V STBY = 1.5V 50 0 0.5 Temp=25°C 90 VIN = STBY 40 0 0 100 2 IO=200mA VIN = STBY 20 Temp=85°C Temp=85°C 8 Gnd Current (uA) STBY Current (uA) 120 Gnd Current (uA) 60 Temp=25°C VIN = STBY 1.76 0.0 80 Gnd Current (uA) Output Voltage (V) Output Voltage (V) 100 1.85 3.0 0 5.5 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 5.5 0.05 Fig. 70 STBY Input Current Fig. 69 Circuit Current IGND 0.1 0.15 0.2 Output Current (A) STBY Voltage (V) Vin Voltage (V) Fig. 71 IOUT - IGND 3.50 Output Voltage (V) Output Voltage (V) Output Voltage (V) 3.00 2.50 2.00 1.50 Temp=85°C Temp=25°C Temp=-40°C 1.00 0.50 0.00 0 0.5 1 1.5 STBY Voltage (V) Fig. 72 Load Regulation Fig. 73 OCP Threshold Fig. 74 STBY Threshold 50.00 1.85 1.82 1.81 1.80 1.79 1.78 VIN=3.5V STBY=1.5V Io=0.1mA 1.77 1.76 G nd Current (uA) 1.83 Input Current (uA) Output Voltage (V) 1.84 40.00 30.00 20.00 VIN=3.5V STBY=1.5V Io=0mA 10.00 0.00 1.75 -40 -15 10 35 60 85 Temp (°C) Fig. 75 VOUT vs. Temp www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. -40 -15 10 35 60 Temp (°C) Fig. 76 IGND vs. Temp 13/21 85 1.000 0.900 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100 -40 VIN=3.5V STBY=0V -15 10 35 60 85 Temp (°C) Fig. 77 IGND vs. Temp (STBY) 2011.09 - Rev.F 80 70 70 60 50 40 30 Vin= 3.5V Io=10mA Ta = 25℃ 20 10 0.7 f= 0 .1 kHz O u tpu t N oise D e n sity [μ V / √ H z] 80 Ripple Rejection [dB] R ipple R ejection (dB) BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note f= 1 kHz 60 f= 1 0 kHz 50 40 f= 1 0 0 kHz 30 Co=1.0μF Cin=none Iout=10mA temp=25℃ 20 10 0 0 0.1 1 10 100 1000 Frequency (kHz) Fig. 78 Ripple Rejection VS Freq. 2.5 3.5 4.5 5.5 Co=1.0μF Cin=1.0μF Iout=10mA temp=25℃ 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 1 Input Voltage VIN[V] Fig. 79 Ripple Rejection VS VIN 10 Frequency f [kHz] 100 Fig. 80 Output Noise Spectral Density VS Freq. Fig. 82 Load Response Fig. 81 Load Response Fig. 83 Load Response Fig. 84 Load Response ⇔ Fig. 85 Load Response Current Pulse=10kHz www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Fig. 86 Load Response Current Pulse=10kHz 14/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ⇔ Fig. 87 Load Response Current Pulse=100kHz Fig. 89 Start Up Time Iout = 0mA Fig. 92 Start Up Time(STBY=VIN) Iout = 200mA www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Fig. 88 Load Response Current Pulse=100kHz Fig. 90 Start Up Time Iout = 200mA Fig. 93 Discharge Time Iout = 0mA 15/21 Fig. 91 Start Up Time (STBY=VIN) Iout = 0mA Fig. 94 VIN Response Iout = 10mA 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Reference data Vo=1.5V (Ta=25ºC unless otherwise specified.) 100 1.55 1.54 1.5 1.2 IO=0uA IO=100uA IO=50mA IO=200mA 0.9 0.6 Temp=25°C VIN = STBY 0.3 IO=0uA IO=100uA IO=50mA IO=200mA 1.53 1.52 1.51 1.50 1.49 1.48 1.47 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 1.25 1.35 1.45 1.55 1.65 1.75 1.85 1.95 Vin Voltage (V) 40 Temp=-40°C Temp=25°C Temp=85°C 0 2.05 2.15 2.25 0.5 1 1.5 Fig. 96 Line Regulation 2 2.5 3 3.5 4 4.5 5 5.5 Fig. 97 Circuit Current IGND 120 10 140 IO=0uA VIN = STBY Vin Voltage (V) Vin Voltage (V) Fig. 95 Output Voltage 110 120 80 60 Temp=-40°C Temp=25°C Temp=85°C 20 Temp=85°C Temp=85°C Gnd Current (uA) 100 40 8 STBY Current (uA) Gnd Current (uA) 60 0 1.45 0 80 20 Temp=25°C VIN = STBY 1.46 0.0 Gnd Current (uA) Output Voltage (V) Output Voltage (V) 1.8 Temp=25°C 6 Temp=-40°C 4 IO=200mA VIN = STBY 1 1.5 2 2.5 3 3.5 4 4.5 5 80 70 Temp=-40°C 60 VIN = 3.5V STBY = 1.5V 50 VIN = STBY 40 0 0.5 Temp=25°C 90 2 0 0 100 5.5 0 0.5 1 1.5 Vin Voltage (V) 2 2.5 3 3.5 4 4.5 5 0 5.5 0.05 Fig. 98 Circuit Current IGND 0.1 0.15 0.2 Output Current (A) STBY Voltage (V) Fig. 99 STBY Input Current Fig. 100 IOUT - IGND 3.50 2.00 Temp=25℃ 1.75 Output Voltage (V) Output Voltage (V) 3.00 2.50 VIN=5.5V 2.00 VIN=3.5V 1.50 1.00 VIN=2.0V 0.50 1.50 1.25 1.00 0.75 Temp=85°C Temp=25°C Temp=-40°C 0.50 0.25 STBY=1.5V 0.00 0.00 0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.5 Output Current (A) Fig. 101 Load Regulation Fig. 102 OCP Threshold 1.55 50.00 1.51 1.50 1.49 1.48 VIN=3.5V STBY=1.5V Io=0.1mA 1.47 1.46 1.45 Gnd Current (uA) Input Current (uA) Output Voltage (V) 1.52 40.00 30.00 20.00 VIN=3.5V STBY=1.5V Io=0mA 10.00 0.00 -40 -15 10 35 60 85 Temp (°C) Fig. 104 VOUT vs. Temp www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. -40 -15 10 35 60 Temp (°C) Fig. 105 IGND vs. Temp 16/21 1.5 Fig. 103 STBY Threshold 1.54 1.53 1 STBY Voltage (V) 85 1.000 0.900 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100 -40 VIN=3.5V STBY=0V -15 10 35 60 85 Temp (°C) Fig. 106 IGND vs. Temp (STBY) 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note 80 0.7 f= 0 .1 kHz 70 Ripple Rejection [dB] Ripple Re je c tion (dB ) 70 O u tpu t N o is e D e n s ity [μ V / √ H z ] 80 60 50 40 30 Vin= 3.5V Io=10mA Ta = 25℃ 20 10 f= 1 kHz 60 f= 1 0 kHz 50 40 30 f= 1 0 0 kHz Co=1.0μF Cin=none Iout=10mA temp=25℃ 20 10 0 0 2.5 0.1 1 10 100 1000 Frequency (kHz) Fig. 107 Ripple Rejection vs. Freq. 3.5 4.5 Input Voltage VIN[V] Fig. 108 Ripple Rejection vs. VIN (Iout=10 mA) 5.5 Co=1.0μF Cin=1.0μF Iout=10mA temp=25℃ 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 1 10 Frequency f [kHz] Fig. 109 Output Noise Spectral Density vs. Freq. Fig. 110 Load Response Fig. 111 Load Response Fig. 112 Load Response Fig. 113 Load Response Fig. 114 Load Response Current Pulse=10 kHz www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 100 Fig. 115 Load Response Current Pulse=10 kHz 17/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note Fig. 116 Load Response Current Pulse=100 kHz Fig. 118 Start-up Time Iout = 0 mA Fig. 121 Startup Time (STBY=VIN) Iout = 200mA www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. Fig. 117 Load Response Current Pulse=100 kHz Fig. 119 Start-up Time Iout = 200 mA Fig. 122 Discharge Time Iout = 0 mA 18/21 Fig. 120 Start-up Time (STBY=VIN) Iout = 0 mA Fig. 123 VIN Response Iout = 10 mA 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●About power dissipation (Pd) As for power dissipation, an approximate estimate of the heat reduction characteristics and internal power consumption of IC are shown, so please use these for reference. Since power dissipation changes substantially depending on the implementation conditions (board size, board thickness, metal wiring rate, number of layers and through holes, etc.), it is recommended to measure Pd on a set board. Exceeding the power dissipation of IC may lead to deterioration of the original IC performance, such as causing operation of the thermal shutdown circuit or reduction in current capability. Therefore, be sure to prepare sufficient margin within power dissipation for usage. Calculation of the maximum internal power consumption of IC (PMAX) PMAX=(VIN-VOUT1)×IOUT1(MAX.)＋(VIN-VOUT2)×IOUT2(MAX.)＋(VIN-VOUT3)×IOUT3(MAX.) (VIN : Input voltage VOUT1,2,3 : Output voltage IOUT(MAX) : Maximum output current) 0.7 0.6 0.66W * Please design the margin so that PMAX becomes is than Pd (PMAXPd) within the usage temperature range. Pd [W] 0.5 0.4 0.3 - Standard ROHM board Size: 70 mm 70 mm 1.6 mm Material : Glass epoxy board 0.2 0.1 0 0 25 50 75 85 100 125 Ta [℃] Fig.124 VSON008X2030 Power dissipation heat reduction characteristics (Reference) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 19/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Other notes - About absolute maximum rating Breakage may occur when absolute maximum ratings such as applied voltage and operating temperature range are exceeded. Short mode or open mode cannot be specified at occurrence of a break, so please prepare physical safety measures (e.g., fuse) if such special mode in which the absolute maximum rating is exceeded can be assumed. - About GND potential Please be sure that the potential of the GND terminal is the lowest in any operating condition. - About thermal design Please provide thermal design with sufficient margin, taking power dissipation (Pd) in actual usage conditions into consideration. - About short between pins and miss-attachment Please be careful regarding the IC direction and misalignment at attachment onto a printed circuit board. Miss-attachment may cause a break of IC. Short caused by foreign matter between outputs, output and power supply, or GND may also lead to a break. - About operation in a strong electromagnetic field Please note that usage in a strong electromagnetic field may cause malfunction. - About common impedance Please give due consideration to wiring of the power source and GND by reducing common-mode ripple or making ripple as small as possible (e.g., making the wiring as thick and short as possible, or reducing ripple by LC), etc. - About STBY terminal voltage Set STBY terminal voltage to 0.3 V or less to put each channel into a standby state and to 1.5 V or more to put each channel into an operating state. Do not fix STBY terminal voltage to 0.3 V or more and 1.5 V or less or do not lengthen the transition time. This may cause malfunction or failure. When shorting the VIN terminal and STBY terminal for usage, the status will be “STBY=VIN＝LOW” at turning the power OFF, and discharge of the VOUT terminal cannot operate, which means voltage may remain for a certain time in the VOUT terminal. Since turning the power ON again in this state may cause overshoot, turn the power ON for use after the VOUT terminal is completely discharged. - About over current protection circuit Output has a built-in over current protection circuit, which prevents IC break at load short. Note that this protection circuit is effective for prevention of breaks due to unexpected accidents. Please avoid usage by which the protection circuit operates continuously. - About thermal shutdown Output is OFF when the thermal circuit operates since a temperature protection circuit is built in to prevent thermal breakdown. However, it recovers when the temperature returns to a certain temperature. The thermal circuit operates at emergency such as overheating of IC. Since it is prepared to prevent IC breakdown, please do not use it in a state in which protection works. - About reverse current For applications on which reverse current is assumed to flow into IC, it is recommended to prepare a path to let the current out by putting a bypass diode between the VIN-VOUT terminals. Reverse current VIN STBY OUT GND Fig.125 Example of bypass diode connection - About testing on a set board When connecting a capacitor to a terminal with low impedance for testing on a set board, please be sure to discharge for each process since IC may be stressed. As a countermeasure against static electricity, prepare grounding in the assembly process and take sufficient care in transportation and storage. In addition, when connecting a capacitor to a jig in a testing process, please do so after turning the power OFF and remove it after turning the power OFF. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 20/21 2011.09 - Rev.F BU6650NUX,BU6651NUX,BU6652NUX,BU6653NUX,BU6654NUX,BU6655NUX Technical Note ●Ordering part number B U 6 Part No. 5 5 0 N Part No. 6650 6651 6652 6653 6654 6655 U X - Package NUX: VSON008X2030 T R Packaging and forming specification TR: Embossed tape and reel VSON008X2030 <Tape and Reel information> 3.0±0.1 2.0±0.1 0.6MAX 1PIN MARK 0.25 TR The direction is the 1pin of product is at the upper right when you hold ( reel on the left hand and you pull out the tape on the right hand ) (0.12) +0.03 0.02 −0.02 1.5±0.1 4000pcs 0.5 1 4 8 5 1.4±0.1 0.3±0.1 C0.25 Embossed carrier tape Quantity Direction of feed S 0.08 S Tape 1pin +0.05 0.25 −0.04 Reel (Unit : mm) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 21/21 Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. 2011.09 - Rev.F Datasheet Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you (Note 1) , transport intend to use our Products in devices requiring extremely high reliability (such as medical equipment equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual ambient temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice - GE © 2014 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label QR code printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with ROHM representative in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable for infringement of any intellectual property rights or other damages arising from use of such information or data.: 2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the information contained in this document. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice - GE © 2014 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet General Precaution 1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents. ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s representative. 3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. Notice – WE © 2014 ROHM Co., Ltd. All rights reserved. Rev.001