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| qSI-3000LU Series SI-3000LU Series Surface-Mount, Low Current Consumption, Low Dropout Voltage Dropper Type sFeatures * * * * * * Compact surface-mount package (SOT-89-5) Output current: 250 mA Low current consumption lq (OFF) 1A (VC = 0 V) Low dropout voltage: VDIF0.5 V (at IO = 250 mA) 5 types of output voltages (Adj, 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, *3 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. *3: For the SI-3012LU, set the input voltage to at least 2.4 V, and secure the minimum voltage as explained in Setting DC Input Voltage, Dropper Type Application Note. qSI-3000LU Series sElectrical Characteristics Ratings Parameter Symbol VO Conditions VDIF Dropout Voltage Conditions Conditions VLINE Line Regulation Conditions VLOAD Load Regulation Conditions Temperature Coefficient of Output Voltage Ripple Rejection Conditions Quiescent Circuit Current OFF Circuit Current Overcurrent Protection Starting Current*1 Control Voltage (Output ON)*2 Control Voltage (Output OFF)*2 (Ta=25C, VC=2V unless otherwise specified) (Under development) (Under (Under development) SI-3012LU min. SI-3018LU SI-3025LU development) SI-3033LU SI-3050LU Unit typ. max. min. typ. max. min. typ. max. min. typ. max. min. typ. max. V Output Voltage 1.210 1.250 1.290 1.764 1.800 1.836 2.450 2.500 2.550 3.234 3.300 3.366 4.900 5.000 5.100 VIN=VO+1V, IO=10mA 0.3 IO=100mA(VO=3.3V) 0.5 IO=250mA(VO=3.3V) 10 VIN=VO+1 to VO+5V, IO=10mA( VO=3.3V) 20 VIN=VO+1V, IO=1 to 250mA( VO=3.3V) 0.3 55 10 VIN=2.5 to 5V, IO=10mA 20 0.5 VIN=3.3V, IO=10mA 0.5 VIN=3.3V, IO=10mA 0.3 IO=100mA 0.5 IO=250mA 10 VIN=3.3 to 5V, IO=10mA 40 10 VIN=4.5 to 8V, IO=10mA 40 VIN=5V, IO=0 to 250mA 0.3 55 15 VIN=6 to 10V, IO=10mA 40 0.5 0.5 VIN=5V, IO=10mA 0.3 VIN=6V, IO=10mA 0.3 V mV mV VIN=3.3V, IO=1 to 250mA VIN=3.3V, IO=0 to 250mA 0.2 55 0.25 Tj=0 to 100C 55 55 dB VIN=6V, f=100 to 120HZ 150 VIN=6V, IO=0mA, VC=2V 1 VIN=6V, VC=0V 260 VIN=5V 2.0 0.8 40 VC=2V 0 VC=0V -5 0.5 0 0.8 40 -5 0.5 0 2.0 0.8 40 -5 0.5 VIN=6V V VIN=6V, IO=0 to 250mA 0.3 mV/C VO/Ta Conditions RREJ VIN=VO+1V, VIN=3.3V, f=100 to 120HZ VIN=3.3V, f=100 to 120HZ VIN=5V, f=100 to 120HZ f=100 to 120HZ( VO=3.3V) 150 VIN=VO+1V, IO=0mA VC=2V, R2=100k 1 VIN=VO+1V, VC=0V 260 VIN=VO+1V 2.0 0.8 40 0 -5 0.5 0 2.0 0.8 40 -5 0.5 260 VIN=3.3V 2.0 150 VIN=3.3V, IO=0mA VC=2V 1 VIN=3.3V, VC=0V 260 VIN=3.3V 150 VIN=3.3V, IO=0mA, VC=2V 1 VIN=3.3V, VC=0V 260 150 VIN=5V, IO=0mA, VC=2V 1 VIN=5V, VC=0V Iq Conditions Iq(OFF) Conditions IS1 Conditions VC, IH VC, IL IC, IH Conditions IC, IL Conditions VO A A mA VC Pin Control Current (Output ON) A A V Control Current (Output OFF) Output OFF Voltage *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-3033LU, 6 V for SI-3050LU), and IO = 10 mA. *2: Output is OFF when the output control pin (VC pin) is open. Each input level is equivalent to that for LS-TTL. Therefore, the device can be driven directly by an LS-TTL circuit. sExternal Dimensions 4.5 4.20.05 t 0.05 (Unit : mm) 1.60.05 4.20.05 4.20.05 r 0.900.1 0.10.05 0.40.03 0.40 2.50.05 q w e 0.900.1 4.20.05 4.70.05 4.20.05 4.30.05 ( 1 .0 0.0 5) Pin Arrangement q ADJ w GND e VC r VIN t VO Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 0.05g 0.40.05 1.50.05 1.50.05 1.50.05 qSI-3000LU Series sBlock Diagram SI-3012LU SI-3018LU, SI-3025LU, SI-3033LU, SI-3050LU VIN 4 5 VO VIN 4 5 VO VC 3 TSD + - 1 Adj 3 TSD 1 Adj 2 GND + - 2 GND REF REF sStandard External Circuit SI-3018LU, SI-3025LU, SI-3033LU, SI-3050LU VIN 4 VO 5 VDJ 1 2 GND CO + CIN Load VC 3 + SI-3012LU VIN CIN 4 3 1 2 GND VC R2 CO 5 VO R1 CO : Output capacitor (10F or larger) The SI-3000LU 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. Settings for SI-3012LU output voltage (recommended voltage: 1.5 V to 15 V) R1 and R2: Resistors for output setting The output voltage can be set by connecting R1 and R2 as shown in the diagram on the left. R2: 100 k is recommended R1=(VO-VADJ)/(VADJ/R2) * + VIN + Load sReference Data Copper Laminate Area vs Power Dissipation Tj=100C PWB size 40x40 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 1000 Copper Laminate Area (mm2) qSI-3000LU Series sTypical Characteristics of SI-3033LU (Ta=25C) IO vs. VDIF Characteristics 0.6 Output Voltage Characteristics 5 Line Regulation 3.34 lO=0mA 0.5 Dropout Voltage VDIF (V) 4 3.32 lO=0mA 0.4 Output Voltage VO (V) Output Voltage VO (V) 3.30 3 0.3 3.28 lO=250mA 3.26 2 lO=250mA 1 0.2 0.1 3.24 0 50 100 150 200 250 300 3.22 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 Output ON/OFF Control 5 Overcurrent Protection Characteristics 5 3.32 Dropout Voltage VDIF (V) 3.30 8V 3.28 6V 3.26 5V Output Voltage VO (V) 3 VIN=5V 2 Output Voltage VO (V) VIN=3.8V 4 4 3 VIN=3.8V 2 5V 3.24 1 1 8, 10V 3.22 0 50 100 150 200 250 300 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0 100 200 300 400 Output Current IO (mA) Output Control Voltage VC (V) Output Current IO (mA) |
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