ip1531 Interpion semiconductor Inc., ip1531 Datasheet
ip1531
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ip1531 Summary of contents
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... DESCRIPTION The IP1531 is a triple output voltage LDO regulator which can provide up to 500mA of output current. The IP1531 consists of 1 -fixed 3.3V and 2 -adjustable regulators. FEATURES - 1-Fixed 3.3V LDO regulator with internal NPN TR. - 2-Adjustable LDO regulators with internal NPN TR. - Built-in TSD circuit. - Built-in current limit circuit. ...
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... SYMBOL 1 VIN 2 ON/OFF 3 VOUT1 4 ADJ2 5 VOUT2 6 VOUT3 7 ADJ3 8 PGND December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR IP1531 VOUT1 ADJ2 VOUT3 VOUT2 I/O DESCRIPTION I Input Supply Voltage I ON/OFF control O Regulator 1 Output (3.3V fixed) I Regulator 2 Adjustable Pin O Regulator 2 Output (Adjustable) O Regulator 3 Output (Adjustable) ...
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... Do not exceed Pd and SOA. POWER DISSIPATION CURVE SOA Ambient Temperature (°C) RECOMMENDED OPERATING CONDITIONS CHARACTERISTICS Input voltage December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR O C) SYMBOL Vccmax Vinmax Pd Topr Tstr C for using above Ta= 100 ...
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... Ripple rejection RR2 *Note Current limit Ilimit2 Adjust pin current Iadj 2 Minimum load current Ilmin2 Temperature stability Temp2 December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR Condition Vcc=5V, No-Load Vcc=Variable - Io=10mA Vin=4.5~6V, Io=10mA Ta= Vin=5V, 10mA < Io < 500mA Io=500mA F=120Hz, Co=10uF Tantalum ...
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... ON/OFF CONTROL PART On voltage Von Off voltage Voff * Note Don’t exceed following current limit. ( Iout1 : 500 mA, Iout2 : 400 mA, Iout3 : 400 mA ) December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR Condition Io=10mA Vin=4.5~6V,Io=10mA Ta= Vin=5V, 10mA < Io < 400mA Io=400mA F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=200mA Vin-Vout=3 ...
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... APPLICATION SUMMARY - ON / OFF When you want to control output of the IP1531, use pin #2 as follows Pin#2 Vth December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR Main bias Q1 As shown in figure Pin#2 is positive input of the comparator, and the other Input is threshold voltage. ...
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... VIN ON/OFF 1 2 Vinput H *CALCULATION OF OUTPUT VOLTAGE VOUT2 = VREF ( 1 + (Radj1 / Radj2) ) =1.25V ( 1 + (Radj1 / Radj2) ) VOUT3 = VREF ( 1 + (Radj3 / Radj4) ) =1.25V ( 1 + (Radj3 / Radj4) ) December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR PGND IP1531 VOUT1 ADJ2 VOUT2 Radj1 10uF Radj2 10uF Vout1 Vout2 L www ...
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... INTERNAL CIRCUIT Pin no Pin name 2 ON/OFF Regulator Output1,2,3 3,5,6 4,7 Regulator Adjustable pin December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR Internal circuit 2 Vref www.interpionsemi.com ...
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... ELECTRICAL CHARACTERISTICS CURVES 1.270 1.265 1.260 1.255 1.250 1.245 1.240 1.235 1.230 -50 December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR QUIESCENT CURRENT Vcc (V) VREF TEMPERTURE STABILITY 0 50 100 O TEMP ( C) www.interpionsemi.com Vo2=Vo3=1.25V Ro2=Ro3= 150 - 9 - ...
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... ELECTRICAL CHARACTERISTICS CURVES (Continued) 3.40 3.35 3.30 3.25 3.20 0 1.35 1.30 1.25 1.20 1.15 1.10 0 December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR VOUT1 Load Regulation (Tj=25 200 400 600 Output Current (mA) VOUT2,3 Load Regulation (Tj=25 200 400 600 Output Current (mA) www.interpionsemi.com o C) 800 1000 o C) Vo2=Vo3=1.25V 800 1000 - 10 - ...
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... ELECTRICAL CHARACTERISTICS CURVES (Continued) 200 100 0 -100 -200 -300 0 200 100 0 -100 -200 0 December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR VOUT1 Load Transient Response Io=500mA 20 40 Time (usec) VOUT2,3 Load Transient Response Vout2=Vout3=1.25V Io=400mA 20 40 Time (usec) www.interpionsemi.com Io=50mA 60 ...
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... ELECTRICAL CHARACTERISTICS CURVES (Continued) 1.4 1.2 1.0 0.8 0.6 0 December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR Dropout Voltage 200 400 Output Current (mA) www.interpionsemi.com 600 800 - 12 - ...
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... PACKAGE DIMENSION #1 6.00 (0.236 3.95 (0.156 5.72 0.60 0.20 (0.225) (0.024 0.008) December. 2002 (Rev.0) IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR 14SOPH-8L 0.30 0.012) 0.2 0.008) 0~8 www.interpionsemi.com MIN0.05 1.55 (MIN0.002) 0.10 (0.061 0.004) 1.80MAX (0.071MAX ...