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| IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR DESCRIPTION The IP1521 is a dual output voltage series regulator which can provide up to 600mA of output current. The IP1521 consists of 1 -fixed 3.3V and 1-fixed 1.8V regulators. 14SOPH-8L FEATURES - 1-Fixed 3.3V Regulator with Internal NPN TR. - 1-Fixed 1.8V Regulator with Internal NPN TR. - Built-in TSD Circuit. - Built-in Current Limit Circuit. - Built-in ON/OFF Control Circuit. - Built-in Over Voltage Protection Circuit. - Output Trimmed to +/-3% Tolerance ORDERING INFORMATION Device IP1521 Package 14SOPH-8L Operating Temp -35 OC ~ +85 OC BLOCK DIAGRAM VIN 1 VOUT1 2 PGND N/C 3 ON/OFF 4 Vref VOUT2 5 N/C 6 7 PGND TSD ON/OFF SW SHUT DOWN N/C OCP OVP August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -1- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR PIN CONNECTIONS PGND PGND IP1521 1 VIN 2 VOUT1 3 N/C 4 5 6 N/C 7 N/C ON/OFF VOUT2 PIN DESCRIPTIONS NO 1 2 3 4 5 6 7 8 SYMBOL VIN VOUT1 N/C ON/OFF VOUT2 N/C N/C PGND I/O I O I O DESCRIPTION Input Supply Voltage Reg +3.3V Output No Connection ON/OFF Control Reg +1.8V Output No Connection No Connection Power Ground August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -2- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR ABSOLUTE MAXIMUM RATINGS(TA=25OC) CHARACTERISTICS Maximum supply voltage ON/OFF voltage Power dissipation Operating temperature Storage temperature Maximum output current SYMBOL VINmax Vonoff Pd Topr Tstr Iomax VALUE 10 10 3.5* -35 ~ +85 -55 ~ +150 700 UNIT V V W O C C O mA Note> 1. When mounted on 100mm X 100mm X 1mm PCB (Phenolic resin material). 2. Power dissipation reduces 28mW/OC for using above Ta=25O C 3. Do not exceed Pd and SOA. POWER DISSIPATION CURVE 4 Power Dissipation (W) 3 2 SOA 1 0 25 50 75 100 125 150 175 Ambient Temperature (C) RECOMMENDED OPERATING CONDITIONS CHARACTERISTICS Supply voltage Input voltage SYMBOL Vcc Vin VALUE 4.5 ~ 6.0 4.5 ~ 6.0 UNIT V V August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -3- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR ELECTRICAL CHARACTERISTICS ( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.) Characteristics Quiescent current OVP Detecting Voltage Symbol Icc Vovp Condition Vcc=5V, No-Load Vcc=Variable Min. 6.5 Typ. 7 - Max. 11 - Units mA V 3.3V REGULATOR PART Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection Current limit Temperature stability Output noise voltage 1 *Note Vout1 dVline1 dVload 1 Vdrop1 RR1 Ilimit1 Temp1 Vn1 Io=10mA Vin=4.5~6V, Io=10mA Vin=5V, 10mA < Io < 500mA Io=500mA F=120Hz, Co=10uF Tantalum (Vin-Vout)=3V, Io=200mA Vin-Vout=2V Iout=300mA 3.2 60 650 - 3.3 0.035 0.4 1.1 70 0.5 100 3.4 0.2 0.8 1.3 - V % % V dB mA % uV 1.8V REGULATOR PART Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection Current limit Temperature stability Output noise voltage 2 *Note Vout2 dVline2 dVload2 Vdrop2 RR2 Ilimit2 Temp2 Vn2 Io=10mA Vin=4.5~6V, Io=10mA Vin=5V, 10mA < Io < 300mA Io=300mA F=120Hz, Co=10uF Tantalum (Vin-Vout)=3V, Io=100mA Vin-Vout=3.5V Iout=150mA 1.746 - 1.8 0.035 0.4 1.7 1.854 0.2 0.8 2.1 V % % V dB 60 450 - 70 0.5 100 - mA % uV August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -4- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR ELECTRICAL CHARACTERISTICS (Continued) ( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.) ON/OFF CONTROL PART On voltage Off voltage Von Voff Vout=Enabled Vout=Disabled 2.0 0.8 V V * Note Don't exceed following current limit. ( Iout1 : 650 mA, Iout2 : 450 mA ) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -5- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR APPLICATION SUMMARY - ON / OFF When you want to control output of the IP1521, use pin #4 as follows Pin#4 Main bias IP1521 off on HIGH LOW Q1 Pin#4 Vth As shown in figure Pin#4 is positive input of the comparator, and the other Input is threshold voltage. If the voltage of the pin#4 rises above threshold voltage, then TR Q1 will be saturated and the main bias current will be shut down. on/off function August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -6- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR TYPICAL APPLICATION CIRCUIT PGND PGND IP1521 VIN 1 VOUT1 2 N/C 3 ON/OFF VOUT2 4 5 N/C 6 N/C 7 10uF Vinput 3.3V H L Von/off 1.8V 10uF August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -7- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR INTERNAL CIRCUIT Pin no Pin name Internal circuit 2 Regulator output1 2 5 Regulator Output2 5 August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -8- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR INTERNAL CIRCUIT (Continued) Pin no Pin name Internal circuit 4 4 ON / OFF August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -9- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR VCC vs ICC 10 8 Icc (mA) 6 4 2 0 0 2 4 6 8 10 Vcc (V) VREF TEMPERATURE STABILITY 1.82 1.81 1.80 VREF (V) 1.79 1.78 1.77 1.76 -50 0 50 100 O 150 TEMP ( C) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 10 - IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR ILoad1 vs Vdrop1 1.4 Dropout Voltage1 (V) 1.2 1.0 0.8 0.6 0 100 200 300 400 500 600 700 800 Output Current1 (mA) ILoad2 vs Vdrop2 2.0 1.8 Dropout Voltage (V) 1.6 1.4 1.2 1.0 0.8 0 100 200 300 400 500 600 700 800 Output Current (mA) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 11 - IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR VOUT1 Load Regulation (Tj=25 C) 3.40 o 3.35 Output Voltage1 (V) 3.30 3.25 3.20 0 200 400 600 800 1000 1200 Output Current1 (mA) VOUT2 Load Regulation (Tj=25 C) 1.82 o 1.80 Output Voltage (V) 1.78 1.76 1.74 1.72 0 200 400 600 800 1000 1200 Output Current (mA) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 12 - IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR VOUT1 Load Transient Response 200 Output Voltage Deviation (mV) 100 Io=50mA Io=50mA 0 -100 Io=450mA -200 -300 0 20 40 60 80 100 Time (usec) VOUT2 Load Transient Response 200 Output Voltage Deviation (mV) 100 Io=50mA 0 Io=350mA -100 -200 -300 0 20 40 60 80 100 Time (usec) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 13 - IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR PACKAGE DIMENSION 14SOPH-8L MIN0.05 (0.061 0.004) (0.019) 1.55 0.10 (MIN0.002) #1 4.216 0.47 0.406 1.80MAX (0.071MAX) +0.10 -0.05 8.70MAX (0.343MAX) 2.946 8.56 0.20 (0.347 0.008) 6.00 0.30 (0.236 0.012) (0.008,+0.004,-0.002) 3.95 0.2 (0.156 0.008) 0.20 +0.10 -0.05 5.72 0.60 0.20 (0.024 0.008) (0.225) 0~8 August. 2002 (Rev.4) 1.27TYP WWW.INTERPIONSEMI.COM (0.050TYP) - 14 - (0.008,+0.004,-0.002) |
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