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| qSI-3000LUS Series SI-3000LUS Series Surface-Mount, Low Current Consumption, Low Dropout Voltage Dropper Type sFeatures * * * * * Compact surface-mount package (SOT-89-3) Output current: 250 mA Low dropout voltage: VDIF 0.5 V (at IO = 250 mA) 4 types of output voltages (1.8 V, 2.5 V, 3.3 V, 5.0 V) available Built-in dropping type overcurrent, thermal protection circuits sApplications * Auxiliary power supply for PC * Battery-driven electronic equipment sAbsolute Maximum Ratings Parameter DC Input Voltage DC Output Current Power Dissipation Junction Temperature Storage Temperature Thermal Resistance (Junction to Ambient Air) Symbol VIN IO PD*1 Tj*2 Top*2 Ratings 18 250 0.75 -40 to +135 -40 to +125 146 Unit V mA W C C C/W (Ta=25C) j-a *1 *1: When mounted on glass-epoxy board 40 x 40 mm (copper laminate area 2%) *2: Thermal protection circuits may operate if the junction temperature exceeds 135C sRecommended Operating Conditions Parameter Input Voltage DC Output Current Ambient Operating Temperature Symbol min. VIN IO Top *2 Ratings max. VO+2*1 250 85 Unit V mA C 0 -20 *1: VIN (max) and IO (max) are restricted by the relationship PD = (VIN - VO) x IO. Calculate these values referring to the reference data. *2: Refer to the dropout voltage section. qSI-3000LUS Series sElectrical Characteristics Ratings Parameter Symbol VO Conditions VDIF Dropout Voltage Conditions 0.5 Conditions Line Regulation Load Regulation Temperature Coefficient of Output Voltage Ripple Rejection Quiescent Circuit Current Overcurrent Protection Starting Current*1 VLINE Conditions VLOAD Conditions VO/Ta Conditions RREJ Conditions Iq Conditions IS1 Conditions 260 VIN=3.3V 55 VIN=3.3V, f=100 to 120HZ 250 VIN=3.3V, IO=0mA 260 VIN=3.3V 55 VIN=3.3V, f=100 to 120HZ 250 VIN=3.3V, IO=0mA 260 VIN=5V 0.25 10 VIN=3.3 to 5V, IO=10mA 40 VIN=3.3V, IO=0 to 250mA 0.25 Tj=0 to 100C 55 SI-3018LUS min. Output Voltage 1.764 typ. 1.800 (Under development) (Ta=25C, VC=2V unless otherwise specified) (Under development) (Under development) SI-3025LUS min. 2.450 typ. 2.500 SI-3033LUS min. 3.234 typ. 3.300 max. 3.366 0.3 0.5 10 VIN=4.5 to 8V, IO=10mA 40 VIN=5V, IO=0 to 250mA 0.3 SI-3050LUS min. 4.900 typ. 5.000 Unit max. 1.836 0.3 max. 2.550 0.3 max. 5.100 0.3 0.5 10 V V VIN=3.3V, IO=10mA VIN=3.3V, IO=10mA IO=100mA 0.5 IO=250mA 10 VIN=3.3 to 5V, IO=10mA 40 VIN=3.3V, IO=0 to 250mA VIN=5V, IO=10mA VIN=6V, IO=10mA mV mV mV/C dB VIN=6 to 10V, IO=10mA 40 VIN=6V, IO=0 to 250mA 0.3 55 VIN=6V, f=100 to 120HZ 250 VIN=6V, IO=0mA 260 VIN=6V VIN=5V, f=100 to 120HZ 250 VIN=5V, IO=0mA A mA *1: Is1 is specified as the 5% drop point of output voltage VO on the condition that VIN=3.3 V (5 V for SI-3033LUS, 6 V for SI-3050LUS), and IO=10 mA. sExternal Dimensions 4.5 (1.7) (R (0.4) (Unit : mm) 1.6 0.3 ) ( 1 0.25 .0) 2.5 4.25max. 0.8min. 1 0.49max. 2 0.54 max. 3 (5 ) (5 45 ) 0.49max. 0.4 (8) (R (8) Pin Arrangement q VIN w GND e VOUT Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 0.05g 1.5 1.5 0.16 1.5 15 ) (0.1) 0. qSI-3000LUS Series sBlock Diagram VIN 1 3 VO TSD + - 2 GND REF sStandard External Circuit VIN 1 CIN 3 VO + VIN GND 2 + Load CO 1000 CO: Output capacitor (10 F or larger) The SI-3000LUS series can be operated on the circuit even if a low ESR ceramic capacitor is used as the output capacitor. CIN:Input capacitor (0.1 to 10 F) This capacitor is required in the case of an inductive input line or long wiring. sReference Data Copper Laminate Area vs. Power Dissipation Tj=100C PWB size 40 x 40 1 Ta=25C 0.9 Ta=40C Ta=60C Ta=85C Power Dissipation PD (W) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 10 * A monolithic IC is mounted. The inner frame stage is connected to the GND pin (pin 2). Therefore, enlarging the copper laminate area leading to the GND pin achieves a heat radiation effect. * How to calculate the junction temperature Measure the temperature (TC) of the GND pin (pin 2) lead section using a thermistor, etc. Substitute this value in the following formula and calculate the junction temperature. Tj=PDxj-c+Tc (j-c=5C/W) 100 Copper Laminate Area (mm2) qSI-3000LUS Series sTypical Characteristics of SI-3033LUS (Ta=25C) IO vs. VDIF Characteristics 0.6 Output Voltage Characteristics 5 Line Regulation 3.34 lO=0mA 0.5 3.32 Dropout Voltage VDIF (V) Output Voltage VO (V) 0.4 lO=0mA 3 Output Voltage VO (V) 4 3.30 0.3 3.28 lO=250mA 3.26 2 lO=250mA 1 0.2 0.1 3.24 3.22 0 50 100 150 200 250 300 0 2 4 6 8 10 0 4 6 8 10 Output Current IO (mA) Input Voltage VIN (V) Input Voltage VIN (V) Load Regulation 3.34 Overcurrent Protection Characteristics 5 3.32 Dropout Voltage VDIF (V) 3.30 8V 6V 3.26 5V Output Voltage VO (V) VIN=3.8V 4 3 VIN=3.8V 3.28 2 5V 3.24 1 8, 10V 3.22 0 50 100 150 200 250 300 0 0 100 200 300 400 Output Current IO (mA) Output Current IO (mA) |
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