IP1524 INTERPION | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 12
Technical content
December. 2002 (Rev.0) - 1 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com The IP1524 is a dual output voltage LDO regulator which can provide up to 500mA of output current. The IP1524 consists of 1-fixed 3.3V and 1-adjustable regulators. - 1-Fixed 3.3V LDO regulator with internal NPN TR. - 1-Adjustable LDO regulator with internal NPN TR. - Built-in TSD circuit. - Built-in current limit circuit. - Built-in over voltage protection circuit. - Output trimmed to +/-3% Tolerance
DESCRIPTION
FEATURES
-35OC ~ +85 OC
ORDERING INFORMATION
December. 2002 (Rev.0) - 2 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com PIN DESCRIPTIONS NO SYMBOL I/O I Input Supply Voltage ON/OFF I ON/OFF control VOUT1 O Regulator 1 Output (3.3V fixed) ADJ2 I Regulator 2 Adjustable Pin VOUT2 O Regulator 2 Output (Adjustable) N/C No Connection N/C I No Connection PGND Power Ground PIN CONNECTIONS VOUT1 VIN ON/OFF VOUT2 PGND ADJ2 N/C PGND N/C IP1524
December. 2002 (Rev.0) - 3 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com CHARACTERISTICS SYMBOL VALUE UNIT Maximum supply voltage Vccmax V Input voltage Vinmax V Power dissipation Pd 3.0* W Operating temperature Topr -35 ~ +85 OC Storage temperature Tstr -55 ~ +150 OC 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 Power Dissipation (W) Ambient Temperature (°C) 25 50 75 100 125 150 175 RECOMMENDED OPERATING CONDITIONS CHARACTERISTICS SYMBOL VALUE UNIT Input voltage VIN 4.5 ~ 6.0 V SOA ABSOLUTE MAXIMUM RATINGS(TA=25OC)
December. 2002 (Rev.0) - 4 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com
ELECTRICAL CHARACTERISTICS
Min. Typ. Max. Units Quiescent current Icc Vcc=5V, No-Load mA OVP Dectecting Voltage Vovp Vcc=Variable 6.5 V Reference voltage Vref 1.212 1.25 1.288 V LDO REGULATOR 1 (3.3V FIXED TYPE) Output Voltage Vout1 Io=10mA 3.2 3.3 3.4 V Line Regulation dVline1 Vin=4.5~6V, Io=10mA 0.01 0.2 Load Regulation dVload 1 Ta=25OC Vin=5V, 10mA < Io < 500mA 0.4 0.8 Dropout voltage Vdrop1 Io=500mA 1.1 1.3 V Ripple rejection RR1 F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=250mA dB Current limit *Note Ilimit1 500 mA Temperature stability Temp1 0.5 LDO REGULATOR 2 (ADJUSTABLE TYPE) Output Voltage Vout2 Io=10mA Vref Vin- 1.5V V Line Regulation dVline2 Vin=4.5~6V, Io=10mA 0.01 0.2 Load Regulation dVload2 Ta=25OC Vin=5V, 10mA < Io < 400mA 0.4 0.8 Dropout voltage Vdrop2 Io=400mA 1.1 1.3 V Ripple rejection RR2 F=120Hz, Co=10uF Tantalum Vin-Vout=2V, Io=200mA dB Current limit *Note Ilimit2 500 mA Adjust pin current Iadj 2 0.1 uA Minimum load current Ilmin2 mA Temperature stability Temp2 0.5 On voltage Von Vout=Enabled 0.8 V Off voltage Voff Vout=Disabled 2.0 V ON/OFF CONTROL PART ( Vin= 5V, Co=10uF, Ta = 25OC, unless otherwise specified.) *Note Don’ t exceed following current limit
December. 2002 (Rev.0) - 5 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com APPLICATION SUMMARY - ON / OFF When you want to control output of the IP1524, use pin #2 as follows 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. Pin#2 Vth Main bias
December. 2002 (Rev.0) - 6 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com TYPICAL APPLICATION CIRCUIT Vout1 Vout2 Vinput 10uF VOUT1 VIN ON/OFF VOUT2 PGND ADJ2 N/C PGND N/C IP1524 10uF ON/OFF Radj1 Radj2 *CALCULATION OF OUTPUT VOLTAGE VOUT2 = VREF ( 1 + (Radj1 / Radj2) ) =1.25V ( 1 + (Radj1 / Radj2) )
December. 2002 (Rev.0) - 7 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com Pin no Pin name Internal circuit ON/OFF 3,4,5 Regulator Output1,2 Regulator Adjustable pin INTERNAL CIRCUIT Vref
December. 2002 (Rev.0) - 8 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com ELECTRICAL CHARACTERISTICS CURVES Vo2=1.25V Ro2=1K QUIESCENT CURRENT Icc (mA) Vcc (V) -50 100 150 1.230 1.235 1.240 1.245 1.250 1.255 1.260 1.265 1.270 VREF TEMPERTURE STABILITY VREF (V) TEMP ( OC)
December. 2002 (Rev.0) - 9 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com ELECTRICAL CHARACTERISTICS CURVES (Continued) 200 400 600 800 1000 3.20 3.25 3.30 3.35 3.40 VOUT1 Load Regulation (Tj=25 oC) Output Voltage (V) Output Current (mA) 200 400 600 800 1000 1.10 1.15 1.20 1.25 1.30 1.35 Vo2=1.25V VOUT2 Load Regulation (Tj=25 oC) Output Voltage (V) Output Current (mA)
December. 2002 (Rev.0) - 10 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com ELECTRICAL CHARACTERISTICS CURVES (Continued) -300 -200 -100 100 200 Io=50mA Io=500mA VOUT1 Load Transient Response Output Voltage Deviation (mV) Time (usec) -200 -100 100 200 Vout2=1.25V Io=50mA Io=400mA VOUT2 Load Transient Response Output Voltage Deviation (mV) Time (usec)
December. 2002 (Rev.0) - 11 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com ELECTRICAL CHARACTERISTICS CURVES (Continued) 200 400 600 800 0.6 0.8 1.0 1.2 1.4 Dropout Voltage Dropout Voltage (V) Output Current (mA)
December. 2002 (Rev.0) - 12 - IP1524 DUAL OUTPUT VOLTAGE LDO REGULATOR www.interpionsemi.com PACKAGE DIMENSION 14SOPH-8L 6.00 0.30 (0.236 0.012) 3.95 0.2 (0.156 0.008) 5.72 (0.225) 0.60 0.20 (0.024 0.008) 0.20 +0.10 -0.05 0~8 0.47 (0.019) 0.406 +0.10 -0.05 1.27TYP (0.050TYP) 1.80MAX (0.071MAX) MIN0.05 (MIN0.002) 1.55 0.10 (0.061 0.004) 2.946 4.216 8.56 0.20 (0.347 0.008) 8.70MAX (0.343MAX)