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| 3-terminal Dropper Type Regulator SI-3003S Features q 3-terminal IC regulator with 0.8A output current q Voltage accuracy of 2% q Low Dropout voltage 0.5V at IO 0.5A, 1V at IO 0.8A q Built-in constant current type overcurrent, overvoltage and thermal protection circuits q TO-220 equivalent full-mold package External Dimensions (unit: mm) 4.2 0.2 3.2 0.2 10 0.2 2.8 0.2 16.9 0.3 7.9 0.2 40.2 0.5 a Absolute Maximum Ratings Parameter DC input voltage Output current Power Dissipation PD2 Junction temperature Operating temperature Storage temperature Junction to case thermal resistance Junction to ambient-air thermal resistance Tj TOP Tstg j-c 2 max b 2.6 0.15 (Ta =25C) Ratings 35 0.8 * 22 1.8 -40 to +150 -40 to +100 -40 to +150 5.5 66.7 2 Symbol VIN IO PD1 Unit V Conditions 0.94 0.15 (13.5) A W W C C C C/W C/W Stand-alone without heatsink With infinite heatsink Stand-alone without heatsink 0.85 -0.1 +0.2 4*P1.7 0.15 = 6.8 0.15 (root dimensions) 0.45 -0.1 +0.2 12345 j-a Terminal connections 1. VIN a: Type No. 2. (NC) b: Lot No. 3. GND 4. (NC) 5. VO (Forming No. 1115) Electrical Characteristics Parameter Input voltage Output voltage Dropout voltage Line regulation Load regulation Ripple rejection Quiescent circuit current Overcurrent protection starting current Symbol VIN VO VDIF min 6*2 4.90 (Tj=25C, VIN=14V, IO=0.5A unless otherwise specified) Ratings typ max 30 * 1 5.00 5.10 0.5 1.0 Unit V V V V mV mV dB 10 mA A IO 0.5A IO 0.8A VIN=8 to 16V IO =0 to 0.5A f=100 to 120Hz IO=0A Conditions Equivalent Circuit Diagram VIN 1 OCP TSD DRIVE DET ERR REF 5 VO VO LINE VO LOAD RREJ Iq IS1 0.9 * 3 30 100 54 3 3 GND Notes: *1. Since PD(max) = (VIN- VO) * IO=22 (W), VIN(max) and IO (max) may be limited depending on operating conditions. Refer to the Ta --PD curve to compute the corresponding values. *2. Refer to the dropout voltage. *3. IS1 rating shall be the point at which the output voltage VO (VIN=14V, IO=0.5A) drops to -5%. Standard Circuit Diagram D1 *2 1 DC input + *1 SI-3003S 3 5 4 N.C + DC output VIN C1 C2 N.C 2 CO VO Co : Output capacitor (47 to 100F, 50V) *1 C1,C2 : Anti-oscillation capacitors (C1: approx. 47F, C2: approx. 0.33F). These are required for inductive input lines or long wiring. Tantalum capacitors are recommended for C1 and Co, especially at low temperatures. *2 D1 : Protection diode. Required as protection against reverse biasing between input and output. (Recommended diode: Sanken EU2Z.) 8 s Io vs VDIF Characteristics 0.5 s Line Regulation 5.1 s Load Regulation 5.1 0.4 Dropout voltage VDIF (V) Output voltage VO (V) 0.3 5.0 IO=0A =0.2A =0.5A =0.8A IO=0.5, 0.8A =0.2A =0A Output voltage VO (V) 5.0 VIN=35V =25V =14V =6V 0.2 4.9 4.9 0.1 0 0 0.2 0.4 0.6 0.8 Output current IO (A) 0 0 5 10 15 20 25 30 35 Input voltage VIN (V) 0 0 0.2 0.4 0.6 0.8 Output current IO (A) s Output Voltage Temperature Characteristics 5.1 s Rise Characteristics 6 5 IO=0A =0.5A =0.8A s Circuit Current 250 200 Ground current lg (mA) Output voltage VO (V) Output voltage VO (V) 5.0 VIN / IO: 30V / 0A 14V / 0.5A 6V / 0.8A 4 3 2 1 0 0 2 4 6 8 10 Input voltage VIN (V) 150 IO=0.8A =0.5A =0.2A =0A 100 50 4.9 -50 0 50 100 150 0 0 5 10 15 20 25 30 35 Input voltage VIN (V) Ambient temperature Ta (C) s Overcurrent Protection Characteristics 6 5 4 3 2 1 0 0 0.5 1.0 1.5 2.0 2.5 Output current IO (A) s Thermal Protection Characteristics 6 VIN=6V IO=5mA s Ta --PD Characteristics 25 With infinite heatsink With silicone grease Heatsink: aluminum 5 4 3 2 1 0 120 Power Dissipation PD (W) 20 200 * 200 * 2mm (2.3C/W) 15 100 * 100 * 2mm (5.2C/W) 10 75 * 75 * 2mm (7.6C/W) 5 Without heatsink Output voltage VO (V) VIN=6V 14V 35V 25V Output voltage VO (V) 140 160 180 200 0 -40 0 40 80 100 Ambient temperature Ta (C) Operating temperature Ta (C) Note on Thermal Protection Characteristics: The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation, including reliability, is not guaranteed for short-circuiting over an extended period of time. 9 |
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