 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR 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. 14SOPH-8L 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. - Built-in over voltage protection circuit. - Output trimmed to +/-3% Tolerance ORDERING INFORMATION Device IP1531 Package 14SOPH-8L Operating Temp -35 OC ~ +85 OC BLOCK DIAGRAM VIN 1 ON/OFF 2 Vref VOUT1 3 PGND ADJ2 4 VOUT2 5 On/off control SW Shutdown VOUT3 6 PGND OCL ADJ3 7 OVP TSD December. 2002 (Rev.0) www.interpionsemi.com -1- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR PIN CONNECTIONS PGND PGND IP1531 1 2 3 4 5 6 7 VIN ON/OFF VOUT1 ADJ2 VOUT2 VOUT3 ADJ3 PIN DESCRIPTIONS NO 1 2 3 4 5 6 7 8 SYMBOL VIN ON/OFF VOUT1 ADJ2 VOUT2 VOUT3 ADJ3 PGND I/O I I O I O O I DESCRIPTION Input Supply Voltage ON/OFF control Regulator 1 Output (3.3V fixed) Regulator 2 Adjustable Pin Regulator 2 Output (Adjustable) Regulator 3 Output (Adjustable) Regulator 3 Adjustable Pin Power Ground December. 2002 (Rev.0) www.interpionsemi.com -2- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ABSOLUTE MAXIMUM RATINGS(TA=25OC) CHARACTERISTICS Maximum supply voltage Input voltage Power dissipation Operating temperature Storage temperature SYMBOL Vccmax Vinmax Pd Topr Tstr VALUE 10 10 3.0* -35 ~ +85 -55 ~ +150 UNIT V V W O C C O Note> 1. When mounted on 100mm X 100mm X 1mm PCB (Phenolic resin material). 2. Power dissipation reduces 24mW/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 Input voltage SYMBOL VIN VALUE 4.5 ~ 6.0 UNIT V December. 2002 (Rev.0) www.interpionsemi.com -3- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ELECTRICAL CHARACTERISTICS ( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.) Characteristics Quiescent current OVP Detecting Voltage Reference voltage Symbol Icc Vovp Vref Condition Vcc=5V, No-Load Vcc=Variable Min. 6.5 1.212 Typ. 7 1.25 Max. 12 1.288 Units mA V V LDO REGULATOR 1 (3.3V FIXED TYPE) Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection Current limit *Note Vout1 dVline1 dVload 1 Vdrop1 RR1 Ilimit1 Temp1 Io=10mA Vin=4.5~6V, Io=10mA Ta=25 OC Vin=5V, 10mA < Io < 500mA Io=500mA F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=250mA - 3.2 60 500 - 3.3 0.01 0.4 1.1 70 0.5 3.4 0.2 0.8 1.3 - V % % V dB mA % Temperature stability LDO REGULATOR 2 (ADJUSTABLE TYPE) Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection Current limit *Note Vout2 dVline2 dVload2 Vdrop2 RR2 Ilimit2 Iadj 2 Ilmin2 Temp2 Io=10mA Vin=4.5~6V, Io=10mA Ta=25 OC Vin=5V, 10mA < Io < 400mA Io=400mA F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=200mA Vin-Vout=3.0V - Vref 60 400 10 - 0.01 0.4 1.1 70 0.1 0.5 Vin1.5V 0.4 0.8 1.3 - V % % V dB mA uA mA % Adjust pin current Minimum load current Temperature stability December. 2002 (Rev.0) www.interpionsemi.com -4- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ELECTRICAL CHARACTERISTICS ( Vin= 5V, Co=10uF, Ta = 25O C, unless otherwise specified.) Parameter Symbol Condition Min. Typ. Max. Units LDO REGULATOR 3 (ADJUSTABLE TYPE) Output Voltage Line Regulation Load Regulation Dropout voltage Ripple rejection Current limit *Note Vout3 dVline3 dVload3 Vdrop3 RR3 Ilimit3 Iadj 3 Ilmin3 Temp3 Io=10mA Vin=4.5~6V,Io=10mA Ta=25 OC Vin=5V, 10mA < Io < 400mA Io=400mA F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=200mA Vin-Vout=3.0V - Vref 60 400 10 - 0.01 0.4 1.1 70 0.1 0.5 Vin1.5V 0.4 0.8 1.3 - V % % V dB mA uA mA % Adjust pin current Minimum load current Temperature stability 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 : 500 mA, Iout2 : 400 mA, Iout3 : 400 mA ) December. 2002 (Rev.0) www.interpionsemi.com -5- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR APPLICATION SUMMARY - ON / OFF When you want to control output of the IP1531, use pin #2 as follows Main bias Q1 Pin#2 Vth As shown in figure Pin#2 is positive input of the comparator, and the other Input is threshold voltage. If the voltage of the pin#2 rises above threshold voltage, then TR Q1 will be saturated and the main bias current will be shut down. December. 2002 (Rev.0) www.interpionsemi.com -6- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR TYPICAL APPLICATION CIRCUIT PGND PGND IP1531 VIN ON/OFF VOUT1 1 2 3 ADJ2 VOUT2 VOUT3 ADJ3 4 Radj1 5 6 Radj3 7 10uF Radj2 10uF 10uF Radj4 Vinput H L Vout1 Vout2 Vout3 *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) www.interpionsemi.com -7- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR INTERNAL CIRCUIT Pin no Pin name Internal circuit 2 2 ON/OFF Regulator Output1,2,3 3,5,6 4,7 Regulator Adjustable pin Vref 4 7 3 5 6 December. 2002 (Rev.0) www.interpionsemi.com -8- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ELECTRICAL CHARACTERISTICS CURVES QUIESCENT CURRENT 10 8 Vo2=Vo3=1.25V Ro2=Ro3=1K Icc (mA) 6 4 2 0 0 2 4 6 8 10 Vcc (V) VREF TEMPERTURE STABILITY 1.270 1.265 1.260 1.255 VREF (V) 1.250 1.245 1.240 1.235 1.230 -50 0 50 100 O 150 TEMP ( C) December. 2002 (Rev.0) www.interpionsemi.com -9- IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ELECTRICAL CHARACTERISTICS CURVES (Continued) VOUT1 Load Regulation (Tj=25 C) 3.40 o 3.35 Output Voltage (V) 3.30 3.25 3.20 0 200 400 600 800 1000 Output Current (mA) VOUT2,3 Load Regulation (Tj=25 C) 1.35 o 1.30 Output Voltage (V) Vo2=Vo3=1.25V 1.25 1.20 1.15 1.10 0 200 400 600 800 1000 Output Current (mA) December. 2002 (Rev.0) www.interpionsemi.com - 10 - IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ELECTRICAL CHARACTERISTICS CURVES (Continued) VOUT1 Load Transient Response 200 Output Voltage Deviation (mV) 100 Io=50mA 0 Io=500mA -100 -200 -300 0 20 40 60 80 Time (usec) VOUT2,3 Load Transient Response 200 Output Voltage Deviation (mV) Vout2=Vout3=1.25V 100 Io=50mA 0 Io=400mA -100 -200 0 20 40 60 80 Time (usec) December. 2002 (Rev.0) www.interpionsemi.com - 11 - IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR ELECTRICAL CHARACTERISTICS CURVES (Continued) Dropout Voltage 1.4 1.2 Dropout Voltage (V) 1.0 0.8 0.6 0 200 400 600 800 Output Current (mA) December. 2002 (Rev.0) www.interpionsemi.com - 12 - IP1531 TRIPLE OUTPUT VOLTAGE LDO REGULATOR PACKAGE DIMENSION 14SOPH-8L MIN0.05 (MIN0.002) (0.019 ) 1.55 0.10 (0.061 0.004) #1 4.216 0.47 1.80MAX (0.071MAX) 8.56 0.20 (0.347 0.008) 8.70MAX (0.343MAX) 2.946 0.40 6 1.27TYP 6.00 0.30 (0.236 0.012) (0.008,+0.004,0.002) 3.95 0.2 (0.156 0.008) 0.20 -0.05 +0.10 5.72 0.60 0.20 (0.024 0.008) 0~8 (0.225) December. 2002 (Rev.0) www.interpionsemi.com (0.050TYP) - 13 - (0.008,+0.004,0.002) +0.1 0 - 0.05 |
Price & Availability of IP1531
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |