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SI3122V

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1-1-1 Linear Regulator IC SI-3000V Series 3-Terminal, Low Dropout Voltage Linear Regulator IC ■Features ■Absolute Maximum Ratings (Ta=25°C) • TO-3P package 3-terminal regulator Ratings Symbol Parameter SI-3052V • Output current: 2.0A SI-3122V/3152V VIN DC Output Current IO 2.0 A PD1 • Low dropout voltage: VDIF ≤ 1V (at IO=2.0A) 50(TC=25°C) W • Built-in foldback-overcurrent protection circuit Power Dissipation 25 PD2 Junction Temperature 30 Unit DC Input Voltage V 1.6(Without heatsink, stand-alone operation) W °C Top –20 to +100 °C Storage Temperature Tstg –30 to +125 °C Thermal Resistance (junction to case) • For stabilization of the secondary-side output voltage of switching power supplies. –30 to +125 Operating Ambient Temperature ■Applications Tj θ j-c 2.0 °C/W • Electronic equipment ■Electrical Characteristics (Ta=25°C) Ratings Parameter Symbol SI-3052V min. Input Voltage 4.9 max. 15 Conditions min. 5.1 11.8 VIN=8V, IO=1.0A VDIF max. min. 25 16 12.0 12.2 14.8 VIN=16V, IO=1.0A typ. max. 15.0 15.2 25 0.5 1.0 1.0 IO=1.0A 1.0 Conditions Ripple Rejection Overcurrent Protection Starting Current V IO=2.0A 10 ∆VOLINE Conditions 30 20 VIN=6 to 15V, IO=1.0A 40 ∆VOLOAD Conditions 60 20 VIN=13 to 25V, IO=1.0A 100 80 60 mV VIN=16 to 25V, IO=1.0A 200 80 VIN=8V, IO=0 to 2.0A VIN=16V, IO=0 to 2.0A ±0.5 +1.5 ±1.5 54 54 200 VIN=20V, IO=0 to 2.0A ∆VO/∆Ta RREJ Temperature Coefficient of Output Voltage V V VIN=20V, IO=1.0A 0.5 Conditions Load Regulation typ. 0.5 Dropout Voltage Line Regulation unit SI-3152V 13 5.0 6 VO Output Voltage VIN SI-3122V typ. mV 54 Conditions IS1 Conditions dB f=100 to 120HZ 2.4 2.4 VIN=8V mV/°C 2.4 VIN=16V VIN=20V A The following are also available: SI-3522V(5.2V), SI-3062V(6V), SI-3082V(8V), SI-3922V(9.2V), SI-3102V(10V), SI-3132V(13.1V), SI-3182V(18V), SI-3202V(20V). *1: These products cannot be used in the following applications because the built-in foldback-type overcurrent protection may cause errors during start-up stage. (1) Constant current load (2) Positive and negative power supply (3) Series-connected power supply (4) VO adjustment by raising ground voltage *2: Is1 is specified at the 5% drop point of output voltage VO. (where VO=VIN + 3V) 56 IC

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