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 ORDERING INFORMATION - 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 Device IP1521 Package Operating Temp 14SOPH-8L -35 OC ~ +85 OC BLOCK DIAGRAM VIN 1 VOUT1 2 PGND N/C 3 ON/OFF 4 Vref VOUT2 5 August. 2002 (Rev.4) N/C 6 ON/OFF SW N/C 7 OCP PGND SHUT DOWN OVP TSD WWW.INTERPIONSEMI.COM -1- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR PIN CONNECTIONS PGND PGND IP1521 1 2 3 4 VIN VOUT1 N/C ON/OFF VOUT2 DESCRIPTION 5 6 7 N/C N/C PIN DESCRIPTIONS NO SYMBOL I/O 1 VIN I Input Supply Voltage 2 VOUT1 O Reg +3.3V Output 3 N/C - No Connection 4 ON/OFF I ON/OFF Control 5 VOUT2 O Reg +1.8V Output 6 N/C - No Connection 7 N/C - No Connection 8 PGND - Power Ground August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -2- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR ABSOLUTE MAXIMUM RATINGS(TA=25OC) CHARACTERISTICS SYMBOL VALUE UNIT Maximum supply voltage VINmax 10 V ON/OFF voltage Vonoff 10 V Power dissipation Pd 3.5* W Operating temperature Topr -35 ~ +85 O Storage temperature Tstr -55 ~ +150 O Maximum output current Iomax 700 C C 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 Power Dissipation (W) 4 3 2 SOA 1 0 25 50 75 100 125 150 175 Ambient Temperature (°C) RECOMMENDED OPERATING CONDITIONS CHARACTERISTICS SYMBOL VALUE UNIT Supply voltage Vcc 4.5 ~ 6.0 V Input voltage Vin 4.5 ~ 6.0 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 Min. Typ. Max. Units - 7 11 mA Vcc=Variable 6.5 - - V Io=10mA 3.2 3.3 3.4 V Vin=4.5~6V, Io=10mA - 0.035 0.2 % Vin=5V, 10mA < Io < 500mA - 0.4 0.8 % Io=500mA - 1.1 1.3 V F=120Hz, Co=10uF Tantalum (Vin-Vout)=3V, Io=200mA 60 70 - dB Vin-Vout=2V 650 - - mA - 0.5 - % - 100 - uV 1.746 1.8 1.854 V Vcc=5V, No-Load 3.3V REGULATOR PART Output Voltage Vout1 Line Regulation dVline1 Load Regulation dVload 1 Dropout voltage Vdrop1 Ripple rejection RR1 Current limit *Note Ilimit1 Temperature stability Temp1 Output noise voltage 1 Vn1 Iout=300mA 1.8V REGULATOR PART Io=10mA Output Voltage Vout2 Line Regulation dVline2 Vin=4.5~6V, Io=10mA - 0.035 0.2 % Load Regulation dVload2 Vin=5V, 10mA < Io < 300mA - 0.4 0.8 % Dropout voltage Vdrop2 Io=300mA 1.7 2.1 V Ripple rejection RR2 Current limit *Note Ilimit2 Temperature stability Temp2 Output noise voltage 2 Vn2 August. 2002 (Rev.4) F=120Hz, Co=10uF Tantalum (Vin-Vout)=3V, Io=100mA 60 70 Vin-Vout=3.5V 450 - - mA - 0.5 - % - 100 - uV Iout=150mA WWW.INTERPIONSEMI.COM dB -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 Von Vout=Enabled - - 0.8 V Off voltage Voff Vout=Disabled 2.0 - - 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 Main bias Pin#4 IP1521 HIGH off LOW on Q1 Pin#4 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. Vth on/off function August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM -6- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR TYPICAL APPLICATION CIRCUIT PGND PGND IP1521 VIN VOUT1 N/C 1 2 3 ON/OFF VOUT2 4 6 7 10uF H 3.3V August. 2002 (Rev.4) N/C 5 10uF Vinput N/C L Von/off 1.8V WWW.INTERPIONSEMI.COM -7- IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR INTERNAL CIRCUIT Pin no Pin name 2 Regulator output1 5 Regulator Output2 August. 2002 (Rev.4) Internal circuit 2 5 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 Icc (mA) 8 6 4 2 0 0 2 4 6 8 10 Vcc (V) VREF TEMPERATURE STABILITY 1.82 1.81 VREF (V) 1.80 1.79 1.78 1.77 1.76 -50 0 50 100 150 O TEMP ( C) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 10 - IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR ILoad1 vs Vdrop1 Dropout Voltage1 (V) 1.4 1.2 1.0 0.8 0.6 0 100 200 300 400 500 600 700 800 600 700 800 Output Current1 (mA) ILoad2 vs Vdrop2 2.0 Dropout Voltage (V) 1.8 1.6 1.4 1.2 1.0 0.8 0 100 200 300 400 500 Output Current (mA) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 11 - IP1521 DUAL OUTPUT VOLTAGE SERIES REGULATOR o VOUT1 Load Regulation (Tj=25 C) 3.40 Output Voltage1 (V) 3.35 3.30 3.25 3.20 0 200 400 600 800 1000 1200 Output Current1 (mA) o VOUT2 Load Regulation (Tj=25 C) 1.82 Output Voltage (V) 1.80 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 Output Voltage Deviation (mV) 200 100 Io=50mA Io=50mA 0 -100 Io=450mA -200 -300 0 20 40 60 80 100 Time (usec) VOUT2 Load Transient Response Output Voltage Deviation (mV) 200 100 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 0.47 (0.061 0.004) (0.019) (MIN0.002) 1.55 0.10 (0.008,+0.004,-0.002) (0.050TYP) +0.10 -0.05 0.406 1.27TYP 8.56 0.20 ( 0.347 0.008) 2.946 8.70MAX (0.343MAX) 4.216 #1 6.00 0.30 1.80MAX (0.008,+0.004,-0.002) 0.20 +0.10 -0.05 (0.236 0.012) 3.95 0.2 (0.156 0.008) 5.72 0.60 0.20 (0.071MAX) 0~8 (0.225) (0.024 0.008) August. 2002 (Rev.4) WWW.INTERPIONSEMI.COM - 14 -