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| IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC DESCRIPTION The IP1620 is an integrated circuit that has triple LDO regulators and one reset circuit. All the LDO regulators have their own internal npn power transistors and their nominal output voltages are 1.65V and 3.4V, respectively. The reset circuit monitors the status of the regulator input voltage and outputs the RESET signal. RESET becomes high after the delay time that is determined by the external capacitor at Td pin. The delay time begins to start after the input voltage reaches above 4.2V. 14SOPH-8L FEATURES - 1-Fixed 3.4V LDO regulator with internal NPN TR. - 1-Fixed 1.65V LDO regulator with internal NPN TR. - Typical reset detection voltage of 4.2V. - Built-in TSD circuit. - Built-in current limit circuit. - Built-in over voltage protection circuit. - Output trimmed to +/-3% tolerance. ORDERING INFORMATION Device IP1622 Package 14SOPH-8L Operating Temp -35OC ~ +85OC BLOCK DIAGRAM April.2003 (Rev.1) www.interpionsemi.com -1- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC PIN CONNECTIONS PIN DESCRIPTIONS NO 1 2 3 4 5 6 7 8 SYMBOL Vin Vdet Vout1 RESET Vout2 N/C Cd PGND I/O I I O O O O DESCRIPTION Input Supply Voltage Detection voltage input Regulator1 1.65V Output RESET output pin Regulator2 3.4V Output NO CONNECTION Delay time capacitor pin Power Ground April.2003 (Rev.1) www.interpionsemi.com -2- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ABSOLUTE MAXIMUM RATINGS(TA=25OC) CHARACTERISTICS Maximum supply voltage Input voltage Power dissipation Operating temperature Storage temperature Maximum output limit current SYMBOL Vccmax Vinmax Pd Topr Tstr Io_limit VALUE 10 10 3.0* -35 ~ +85 -55 ~ +150 900 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 24mW/OC for using above Ta=25OC 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 SYMBOL VIN VALUE 4.5 ~ 6.0 UNIT V April.2003 (Rev.1) www.interpionsemi.com -3- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS ( Vin= 5V, Co=10uF, Ta = 25OC, unless otherwise specified.) Characteristics Quiescent current OVP Dectecting Voltage Symbol Icc Vovp Condition Vcc=5V, No-Load Vcc=Variable Min. 6.5 Typ. 9 7.5 Max. 15 Units mA V LDO REGULATOR 1 (1.65V FIXED TYPE) Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection*Note1 Current limit *Note2 Temperature stability*Note1 Noise Voltage Vout1 dVline1 dVload 1 Vdrop1 RR1 Ilimit1 Temp1 Vn1 Io=10mA Vin=4.5~6V, Io=10mA Ta=25OC Vin=5V, 10mA < Io < 500mA Io=500mA F=120Hz, Co=10uF Tantalum Vin-Vout=3V, Io=250mA Vin=5V f=10Hz~10kHz Io=250mA 1.6 60 500 1.65 0.035 0.4 2.5 70 0.5 100 1.7 0.2 1 2.8 V % % V dB mA % uVrms LDO REGULATOR 2 (3.4V FIXED TYPE) Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection*Note1 Current limit *Note2 Temperature stability*Note1 Noise Voltage Vout2 dVline2 dVload 2 Vdrop2 RR2 Ilimit2 Temp2 Vn2 Io=10mA Vin=4.5~6V, Io=10mA Ta=25OC Vin=5V, 10mA < Io < 300mA Io=300mA F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=150mA Vin=5V f=10Hz~10kHz Io=120mA 3.3 60 300 3.4 0.035 0.4 0.9 70 0.5 100 3.5 0.2 1 1.2 V % % V dB mA % uVrms April.2003 (Rev.1) www.interpionsemi.com -4- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS ( Vin= 5V, Co=10uF, Ta = 25OC, unless otherwise specified.) Parameter Symbol Condition Min. Typ. Max. Units RESET PART Detection voltage Td threshold voltage Hysteresis voltage Detection reference voltage temperature coeffcient *Note1 Reset output current High level output voltage Low level output voltage "H" transport delay time "L" transport delay time Vd Vtd Vhys TCVd IRESET Voh Vol tdLH tdHL Vin=L/H/L RL=4.7K, Vtd=variable RL=4.7K, Vin=L/H/L Ta= -20OC ~ +85OC Vd=0V, VRESET=0.4V RL=4.7K RL=4.7K RL=4.7K, Cd=0.22uF RL=4.7K, Cd=0.22uF 4.0 1.5 0.2 3 3.8 4.2 1.65 0.6 0.01 4.5 0.1 40 50 4.4 1.8 0.9 4.8 0.4 V V V %/OC mA V V ms us * Note1 These parameters are guaranteed, but not 100% tested in mass production. * Note2 Don't exceed the specified current limit in each output voltage. April.2003 (Rev.1) www.interpionsemi.com -5- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC TYPICAL APPLICATION CIRCUIT April.2003 (Rev.1) www.interpionsemi.com -6- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC TIMING CHART FOR RESET CIRCUIT April.2003 (Rev.1) www.interpionsemi.com -7- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC INTERNAL CIRCUIT Pin no Pin name Internal circuit 4 RESET 3,5 Regulator Output1,2 April.2003 (Rev.1) www.interpionsemi.com -8- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS CURVES QUIESCENT CURRENT 10 8 Icc (mA) 6 4 2 0 0 2 4 6 8 10 Vcc (V) VREF TEMPERTURE STABILITY 1.67 1.66 VREF (V) 1.65 1.64 1.63 1.62 -50 0 50 100 o 150 Temp ( C) April.2003 (Rev.1) www.interpionsemi.com -9- IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS CURVES (Continued) VOUT1 Load Regulation (Tj=25 C) 1.70 o Output Voltage (V) 1.65 1.60 1.55 1.50 0 200 400 600 800 1000 Output Current (mA) VOUT2 Load Regulation (Tj=25 C) 3.45 o Output Voltage (V) 3.40 3.35 3.30 3.25 0 200 400 600 Output Current (m A) April.2003 (Rev.1) www.interpionsemi.com - 10 - IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS CURVES (Continued) VOUT1 Load Transient Response 200 Output Voltage Deviation (mV) 100 Io=50mA 0 Io=500mA -100 -200 0 20 40 60 80 Time (usec) VOUT2 Load Transient Response 200 Output Voltage Deviation (mV) 100 Io=50mA 0 Io=300mA -100 -200 -300 0 20 40 60 80 Time (usec) April.2003 (Rev.1) www.interpionsemi.com - 11 - IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS CURVES (Continued) Dropout Voltage (Vout2=3.4V) 1.1 Dropout Voltage (V) 1.0 0.9 0.8 0.7 0.6 0 100 200 300 400 500 Output Current (mA) Detection Voltage vs. RESETB Voltage 5 4 VRESETB (V) 3 2 1 0 0 1 2 3 4 5 Detection Voltage (V) April.2003 (Rev.1) www.interpionsemi.com - 12 - IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS CURVES (Continued) RESETB High Level Output Voltage 5.0 4.5 VRESETB (V) 4.0 3.5 3.0 0 10 20 30 40 Isource (uA) RESETB Low Level Output Voltage 0.4 0.3 VRESETB (V) 0.2 0.1 0.0 0 2 4 6 8 10 Isink (m A) April.2003 (Rev.1) www.interpionsemi.com - 13 - IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC ELECTRICAL CHARACTERISTICS CURVES (Continued) TD Voltage vs. RESETB Voltage 5 4 VRESETB (V) 3 2 1 0 0.0 0.5 1.0 1.5 2.0 TD Voltage (V) R ESET IC Tim ing C hart 6 RESETB 5 4 VDET Voltage (V) 3 TD 2 1 0 0 25 50 75 100 125 150 175 200 T im e (m sec) April.2003 (Rev.1) www.interpionsemi.com - 14 - IP1622 DUAL OUTPUT VOLTAGE LDO REGULATOR + RESET IC PACKAGE DIMENSION 14SOPH-8L MIN0.05 1.55 0.10 (0.061 0.004) (MIN0.002) #1 6.00 0.30 (0.236 0.012) 1.80MAX (0.071MAX) 3.95 0.2 (0.156 0.008) 5.72 0.60 0.20 (0.024 0.008) (0.225) 0~8 April.2003 (Rev.1) www.interpionsemi.com - 15 - |
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