2001.Jul.21 800mA LDO REGULATOR R1170X series OUTLINE The R1170 Series are positive voltage regulator ICs by CMOS process. The R1170 Series have features of high ripple rejection, low dropout voltage, high output voltage accuracy, low consumption current. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at short mode, a chip enable circuit, and thermal-shunt circuit. Output Voltage of R1170 is fixed in the IC. Low consumption current by the merit of CMOS process and built-in transistors with low ON-resistance make low dropout voltage and chip enable function prolong the battery life. These regulators are remarkable improvement on the current regulators in terms of ripple rejection, input transient response, and load transient response. Maximum Output Current is large for its compact size. Thus, the R1170 Series are suitable for various power sources for portable appliances. Since the packages for these ICs are the SOT-89-5 package or HSON6, high density mounting of the ICs on boards is possible. FEATURES Ultra-Low Supply Current* * * * * * * * TYP. 80A Low Standby Current * * * * * * * * * * * TYP. 0.1A Output Current * * * * * * * * * * * * * * * MIN. 800mA(VIN=VOUT+1.0V) Output Voltage * * * * * * * * * * * * Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V High Output Voltage Accuracy* * * * 2.0% Low Dropout Voltage* * * * * * * * * * * * TYP. 0.12V(VOUT=3.0V, IOUT=300mA) Line Regulation* * * * * * * * * * * * TYP. 0.05%/V Small Package * * * * * * * * * * * * * * * * SOT-89-5, HSON6 Built-in Current Limit Circuit Built-in Thermal Shunt Circuit Low Temperature-drift Coefficient of Output Voltage * * * * * * * * * TYP.100ppm/C APPLICATIONS Local Power source for Notebook PC. Local Power source for portable appliances, cameras, and videos. Local Power source for equipment of battery-use. Local Power source for home appliances. Rev. 1.10 -1- BLOCK DIAGRAMS R1170H Series VDD R1170D Series 4 5 V DD 6 1 VOUT V DD 5 2 VOUT - - + + Vref Vref GND Current Limit CE VOUT 1 Current Limit CE 2 3 GND 4 SELECTION GUIDE The output voltage, the chip-enable polarity, the taping type can be selected at the user's request. The selection can be made with the part number as follows; R1170X XXXX-XX Part Number a b c Code a b c d d Contents Package Type; H: SOT89-5, D: HSON-6P Designation of Output Voltage(VOUT) Stepwise setting with 0.1V increment in the range from 1.5V to 4.0V Designation of option; A: Built-in Chip Enable Circuit, Active at "L" B: Built-in Chip Enable Circuit, Active at "H" Designation of Taping Type; T1 or T2 (SOT89-5), TR(HSON-6) (Refer to Taping Specifications) PIN CONFIGURATION SOT-89-5 4 5 Mark 1 Rev. 1.10 Side 2 -2- 3 HSON-6P PIN DESCRIPTION SOT89-5 Pin No. 1 2 3 4 5 HSON-6P Pin No. 1 2 3 4 5 6 Symbol CE or CE GND NC VDD VOUT 6 5 4 1 2 3 Description Chip Enable Pin Voltage Regulator Output Pin Ground Pin No Connection Input Pin Voltage Regulator Output Pin Symbol VOUT VOUT CE or CE GND VDD VDD Description Voltage Regulator Output Pin Voltage Regulator Output Pin Chip Enable Pin Voltage Regulator Output Pin Ground Pin Input Pin Input Pin ABSOLUTE MAXIMUM RATINGS Item Input Voltage Input Voltage(CE or CE Input Pin)*Note Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Rev. 1.10 Symbol VIN VCE VOUT IOUT PD Topt Tstg Rating Unit 7.0 V IN -0.3 ~ V +0.3 V -0.3 ~ VIN+0.3 V 1.2 A Internally limited C -40 ~ 85 C -55 ~ 125 -3- ELECTRICAL CHARACTERISTICS R1170XxxxA Item Input Voltage Supply Current1 Symbol VIN Standby Current Output voltage Istb VOUT Output Current Load regulation IOUT1 VOUT/ IOUT VDIF VOUT/ VIN RR Dropout Voltage Line regulation Ripple Rejection Output Voltage Temperature Coefficient Short Current Limit Pull-up resistance for CE pin CE Input Voltage "H" CE Input Voltage "L" Thermal Shutdown Detector Threshold Temperature Thermal Shutdown Released Temperature Rev. 1.10 ISS1 VOUT/ T ILIM RPU VCEH VCEL TTSD TTSR Conditions VIN-VOUT=1.0V VCE=GND VIN=VCE=6.0V VIN-VOUT=1.0V IOUT=100mA VIN-VOUT=1.0V VIN-VOUT=1.0V 1mAIOUT300mA IOUT=300mA IOUT=100mA VOUT+0.5VVIN8.0V f=1kHz,Ripple 0.5Vp-p VIN-VOUT=1.0V IOUT=10mA -40C Topt 85C VOUT=0V MIN. (Topt=25C) TYP. MAX. 6.0 80 160 0.1 x0.98 1.0 A x1.02 V 100 mA mV 800 30 Unit V A Refer to Dropout Voltage Table 0.05 0.30 %/V 50 dB 100 Junction Temperature 150 ppm /C mA M V V C Junction Temperature 120 C 1.25 1.50 0.00 -4- 40 2.50 5.00 VIN 0.25 R1170xxxxB Item Input voltage Supply Current1 Standby Current Reference Voltage for Adjustable Voltage Regulator Output Current Load regulation Dropout Voltage Line regulation Ripple Rejection Output Voltage Temperature Coefficient Short Current Limit Pull-down resistance for CE pin CE Input Voltage "H" CE Input Voltage "L" Thermal Shutdown Detector Threshold Temperature Thermal Shutdown Released Temperature Symbol Conditions VIN ISS1 VIN-VOUT=1.0V VCE=VIN Istb VIN=6.0V, VCE=GND VOUT VIN-VOUT=1.0V IOUT=100mA IOUT1 VIN-VOUT=1.0V VOUT/ VIN-VOUT=1.0V IOUT 1mAIOUT300mA VDIF IOUT=300mA VOUT/ IOUT=100mA VIN VOUT+0.5VVIN8.0V RR f=1kHz,Ripple 0.5Vp-p VOUT/ -40CTopt85C T ILIM VOUT=0V RPD VCEH VCEL TTSD Junction Temperature TTSR Junction Temperature Dropout Voltage by Output Voltage (Topt=25C) Output Voltage Dropout Voltage (V) VOUT(V) TYP. MAX. VOUT=1.5 0.35 0.45 VOUT=1.6 0.30 0.35 VOUT=1.7 1.8VOUT2.0 2.1VOUT2.4 2.5VOUT4.0 Rev. 1.10 0.25 0.20 0.15 0.12 0.30 0.25 0.20 0.18 -5- MIN. x0.98 (Topt=25C) MAX. Unit 6.0 V A 80 160 1.0 A 0.1 x1.02 V TYP. 800 30 100 mA mV Refer to Dropout Voltage Table 0.05 0.30 %/V 50 100 1.25 1.5 0 150 dB ppm /C mA M V V C 120 C 40 2.5 5 VIN 0.25 TEST CIRCUITS CE 1 1 IN VOUT VDD 4 5 R1170Hxx1B Series OUT Iout VOUT VDD IN OUT 5 4 ISS R1170Hxx1B Series 10F 10F 10F 10F 2 2 GND Standard Test Circuit 1 IN CE Supply Current Test Circuit CE 1 VOUT VDD 4 5 R1170Hxx1B Series GND OUT IN Iout CE VOUT VDD 4 R1170Hxx1B Series 10F OUT 5 10F 10F P.G 2 2 GND Test Circuit for Ripple Rejection, Input Transient Response Rev. 1.10 -6- GND I1 Test Circuit for Load Transient Response I2 Technical Notes on External Components and Typical Application Phase Compensation In these ICs, phase compensation is made with Output capacitor for securing stable operation even if the load current is varied. For this purpose, use as much as 10F Capacitor as CL. If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be unstable. Evaluate your circuit with considering frequency characteristics. Further, refer to the Typical Characteristics No.12. Mounting on PCB Make VDD and GND lines sufficient. If the impedance of these is high, current flows, the noise might be picked up or be a cause of unstable operation. Further use as much as 10F Capacitor between VDD pin and GND pin as close as possible. Set an Output capcitor between VOUT pin and GND pin for phase compensation as close as possible. (Refer to the example of typical application) Example of the typical application of R1170HxxxB CE VDD IN R1170Hxx1B CI OUT CL GND CI=10F(Ceramic), CL=10F(Ceramic) Rev. 1.10 VOUT -7- TYPICAL CHARACTERISTICS 1)Output Voltage vs. Output Current(Topt=25C) R1170X151B R1170X201B 2.5 VIN=3.5V 2 Output Voltage VOUT(V) Output Voltage VOUT(V) 2 1.5 1.5 1 VIN=3V 0.5 VIN=2.5V 1 VIN=3V 0.5 0 VIN=4V 0 0 500 1000 Output Current IOUT(mA) 1500 0 500 1000 Output Current IOUT(mA) R1170X301B 1500 R1170X401B 4.5 3.5 4 Output Voltage VOUT(V) 3 Output Voltage VOUT(V) VIN=3.5V 2.5 2 VIN=4.5V VIN=4V 1.5 VIN=5V 1 0.5 3.5 3 2.5 VIN=5.5V 2 VIN=5V 1.5 1 VIN=6V 0.5 0 0 0 500 1000 Output Current IOUT(mA) 1500 0 500 1000 Output Current IOUT(mA) 1500 2)Output Voltage vs. Input Voltage(Topt=25C) R1170X151B R1170X201B 2.2 2.1 1.6 IOUT = 1mA Output Voltage VOUT(V) Output Voltage VOUT(V) 1.7 IOUT = 10mA 1.5 IOUT = 10mA 2 IOUT = 1mA 1.9 1.4 1.8 IOUT = 100mA IOUT = 100mA 1.7 1.3 IOUT = 300mA IOUT = 300mA 1.6 1.2 1.5 1.4 1.1 1 Rev. 1.10 2 3 4 Input Voltage VIN(V) 5 6 -8- 1 2 3 4 Input Voltage VIN(V) 5 6 R1170X301B R1170X401B 3.2 4.2 IOUT = 10mA 4.1 IOUT = 1mA Output Voltage VOUT(V) Output Voltage VOUT(V) 3.1 3 2.9 IOUT = 100mA 2.8 IOUT = 300mA 2.7 2.6 IOUT = 1mA IOUT = 10mA 4 3.9 3.8 IOUT=100mA 3.7 IOUT=300mA 3.6 3.5 3.4 2.5 2 3 4 Input Voltage VIN(V) 5 3.5 6 4 4.5 5 5.5 6 Input Voltage VIN(V) 3)Dropout Voltage vs. Output Current R1170X201B 0.4 0.4 0.35 0.35 25C 85C 0.3 0.25 -40C 0.2 0.15 0.1 Dropout Voltage VDIF(V) Dropout Voltage VDIF(V) R1170X151B 0.45 0.3 0.25 25C 85C 0.2 -40C 0.15 0.1 0.05 0.05 0 0 0 100 200 300 400 Output Current IOUT(mA) 500 0 100 R1170X301B 500 R1170X401B 0.3 0.25 85C 0.2 -40C 0.15 25C 0.1 0.05 0 0 100 200 300 400 0.2 25C 85C 0.15 0.1 -40C 0.05 0 500 0 Output Current IOUT(mA) Rev. 1.10 Dropout Voltage VDIF(V) 0.25 Dropout Voltage VDIF(V) 200 300 400 Output Current IOUT(mA) -9- 100 200 300 400 Output Current IOUTmA 500 4)Output Voltage vs. Temperature R1170X151B IOUT=10mA 1.60 2.10 1.58 2.08 1.55 2.05 1.53 1.50 1.48 1.45 2.03 2.00 1.98 1.95 1.93 1.43 1.90 1.40 -50 -25 0 25 50 Temperature Topt(C) R1170X301B 75 -50 100 -25 0 25 50 75 100 Temperature Topt (C) R1170X401B VIN=4V IOUT=10mA 3.20 4.20 3.15 4.15 Output Voltage VOUT (V) Output Voltage VOUT (V) VIN=3V IOUT=10mA Output Voltage VOUT (V) Output Voltage VOUT (V) R1170X201B VIN=2.5V 3.10 3.05 3.00 2.95 2.90 2.85 VIN=5V IOUT=10mA 4.10 4.05 4.00 3.95 3.90 3.85 2.80 3.80 -50 -25 0 25 50 Temperature Topt(C) 75 100 -50 -25 0 25 50 Temperature Topt(C) 75 100 5)Supply Current vs. Input Voltage(Topt=25C) R1170X201B 120 100 100 Supply Current Iss(uA) Supply Current Iss(uA) R1170X151B 120 80 60 40 20 80 60 40 20 0 0 0 Rev. 1.10 1 2 3 4 5 Input Voltage VIN(V) 6 0 7 - 10 - 1 2 3 4 5 Input Voltage VIN(V) 6 7 R1170X301B 120 R1170X401B 120 100 Supply Current Iss(uA) Supply Current IssuA) 100 80 60 40 20 80 60 40 20 0 0 0 1 2 3 4 5 Input Voltage VIN(V) 6 0 7 1 2 3 4 5 Input Voltage VIN(V) 6 7 6)Supply Current vs. Temperature R1170X151B R1170X201B VIN=3V 160 160 140 140 Supply Current Iss (uA) Supply Current Iss (uA) VIN=2.5V 120 100 80 60 40 120 100 80 60 40 20 20 -50 -25 0 25 50 Temperature Topt (C) 75 100 -50 -25 R1170X301B 75 100 R1170X401B VIN=5V VIN=4V 160 160 140 140 Supply Current Iss (uA) Supply Current Iss (uA) 0 25 50 Temperature Topt (C) 120 100 80 60 120 100 80 60 40 40 20 20 -50 Rev. 1.10 -25 0 25 50 Temperature Topt (C) 75 -50 100 -25 0 25 50 Temperature Topt (C) -11- 75 100 7)Dropout Voltage vs. Set Output Voltage(Topt=25C) R1170XXXXB 0.35 Dropout Voltage VDIF(V) 0.3 0.25 IOUT=500mA 0.2 IOUT=300mA 0.15 0.1 IOUT=100mA 0.05 0 1 1.5 2 2.5 3 Set Output Voltage VSET(V) 3.5 4 8)Ripple Rejection vs. Frequency R1170X151B R1170X201B VIN=2.5V+0.5Vp-p 80 70 70 Ripple Rejection RR (dB) Ripple Rejection RR (dB) 80 60 50 40 30 20 10 0 0.01 60 50 40 30 20 10 0.1 1 10 Ripple Frequency f (kHz) R1170X301B 0 0.01 100 100 VIN=5V+0.5Vp-p IOUT=100mA 70 70 Ripple Rejection RR (dB) Ripple Rejection RR (dB) 80 60 50 40 30 20 10 Rev. 1.10 0.1 1 10 Ripple Frequency f(kHz) R1170X401B VIN=4V+0.5Vp-p IOUT=100mA 80 0 0.01 VIN=3V+0.5Vp-p IOUT=100mA IOUT=100mA 60 50 40 30 20 10 0.1 1 10 Ripple Frequency f (kHz) 100 - 12 - 0 0.01 0.1 1 10 Ripple Frequency f (kHz) 100 9)Ripple Rejection vs. Input Voltage R1170X301B IOUT = 1mA COUT = 10uF COUT = 10uF 60 60 f = 400Hz f = 400Hz 50 f =1kHz Ripple Rejection RR(dB) Ripple Rejection RR(dB) IOUT = 10mA R1170X301B 40 30 f = 10kHz 20 10 50 f =1kHz 40 30 f = 10kHz 20 10 0 0 3 3.2 3.4 Input Voltage VIN(V) R1170X301B 3 3.6 3.2 3.4 3.6 Input Voltage VIN(V) IOUT = 100mA COUT = 10uF 60 f = 400Hz 50 Ripple Rejection RR(dB) f =1kHz 40 f = 10kHz 30 20 10 0 3 3.2 3.4 Input Voltage VIN(V) 3.6 10)Input Transient Response (Topt=25C) tr=tf=10us R1170X151B COUT=Ceramic 10uF IOUT=100mA 4 1.8 Output Voltage VOUT(V) 1.7 Input Voltage 3 2.5 1.65 2 1.6 Output Voltage 1.55 1.5 1 1.5 0.5 1.45 1.4 0 Rev. 1.10 20 40 60 80 100 Time t(us -13- 120 140 160 180 0 200 Input Voltage VIN(V) 3.5 1.75 R1170X301B tr=tf=10us IOUT=100mA COUT=Ceramic 10uF 6 Input Voltage 3.2 4 3.1 Output Voltage 3 3 2 2.9 1 2.8 0 0 20 40 60 80 100 Time t(us) R1170X301B 120 140 160 180 200 tr=tf=10us IOUT=100mA COUT = Ceramic 4.7uF 3.4 Output Voltage VOUT(V) 5 Input Voltage VIN(V) 3.3 3.3 6 5 Input Voltage 3.2 4 3.1 Output Voltage 3 3 2 2.9 1 2.8 0 20 40 60 80 100 120 140 160 180 Input Voltage VIN(V) Output Voltage VOUT(V) 3.4 0 200 Time t(us) 11)Load Transient ResponseTopt=25C) R1170X151B CIN = Ceramic 10uF tr=tf=3us COUT =Ceramic 10uF 120 1.9 100 80 1.8 Output Current 60 1.7 1.6 Output Voltage 40 20 1.5 1.4 0 20 40 60 80 100 Time t(us) Rev. 1.10 - 14 - 120 140 160 180 0 200 Output Current IOUT(mA) Output Voltage VOUT(V) VIN=2.5V 2 tr=tf=3us CIN = Ceramic 10uF COUT =Ceramic 10uF Output Voltage VOUT(V) VIN=4V 3.5 120 3.4 100 3.3 80 Output Current 3.2 60 3.1 40 Output Voltage 3 20 2.9 0 20 40 60 80 100 120 140 160 180 Output Current IOUT(mA) R1170X301B 0 200 Time t(us) tr=tf=3us CIN = Ceramic 10uF Output Voltage VOUT(V) VIN=4V COUT =Ceramic 4.7uF 3.5 120 3.4 100 3.3 Output Current 3.2 80 60 3.1 Output Voltage 3 40 20 2.9 0 20 40 60 80 100 Time t(us) 120 140 160 180 Output Current IOUT(mA) R1170X301B 0 200 12)Stable Area(Topt=25C,VIN=Set Output Voltage+1V,CIN=Ceramic 10F) CE Vout R1170XXXXB VIN Vin GND Ceramic Spectrum Capacitor S.A. ESR Analyzer Ceramic IIout Capacitor As an output capacitor for this IC, Ceramic capacitor is recommendable. However, other low ESR type capacitor can be used with this IC. For your reference, noise level is tested with the circuit as shown above, and if the noise level is 40V or less than 40V, the ESR values are plotted as stable area. Upper limit is described in the next four graphs, or ESR vs. Output Current. (Hatched area is the stable area.) Rev. 1.10 -15- R1170X151B R1170X151B C OUT =Ceramic 4.7uF C OUT=Ceramic 10uF 100 100 10 ESROhm) ESROhm) 10 1 0.1 1 0.1 0 200 400 600 800 0 COUT=Ceramic 10uF 800 C OUT =Ceramic 4.7uF 100 10 ESR(Ohm) ESROhm) 600 R1170X301B R1170X301B 1 10 1 0.1 0.1 0 200 400 600 0 800 200 400 Output Current I OUT (mA) Output Current IOUT(mA) Rev. 1.10 400 Output Current IOUT(mA) Output Current IOUT (mA) 100 200 - 16 - 600 800