1-1-4 Linear Regulator ICs SI-3000ZD Series Surface-Mount, Low Dropout Voltage ■Features ■Absolute Maximum Ratings • Compact surface-mount package (TO263-5) Parameter (Ta=25°C) Symbol Ratings Unit VIN*1 10 V Output Control Terminal Voltage VC 6 V DC Output Current IO*1 3.0 A • Low circuit current at output OFF: Iq (OFF) ≤ 1µA Power Dissipation PD*3 3 W • Built-in overcurrent and thermal protection circuits Junction Temperature Tj –30 to +125 °C Operating Ambient Temperature Top –30 to +85 °C Storage Temperature Tstg –40 to +125 °C Thermal Resistance (Junction to Ambient Air) θ j-a 33.3 °C/W Thermal Resistance (Junction to Case) θ j-c 3 °C/W DC Input Voltage • Output current: 3.0A • Low dropout voltage: VDIF ≤ 0.6V (at IO = 3.0A) ■Applications • Secondary stabilized power supply (local power supply) ■Recommended Operating Conditions Parameter Symbol Input Voltage Ratings *2 VIN Output Current Unit to 6*1 IO 0 to 3 A Top (a) –20 to +85 °C Operating Junction Temperature Top (j) –20 to +100 °C Output Voltage Variable Range VOADJ 1.2 to 5 V Operating Ambient Temperature Remarks V Only for SI-3011ZD. Refer to the block diagram. *1: VIN (max) and IO (max) are restricted by the relation PD = (VIN - VO) × IO. *2: Set the input voltage to 2.4V or higher when setting the output voltage to 2.0V or lower (SI-3011ZD). *3: When mounted on glass-epoxy board of 40 × 40mm (copper laminate area 100%). ■Electrical Characteristics (Ta=25°C, VC=2V, unless otherwise specified) Ratings Parameter Symbol SI-3011ZD (Variable type) min. Output Voltage (Reference Voltage VADJ for SI-3011ZD) 1.078 Conditions max. min. 1.100 1.122 3.234 VIN=VO+1V, IO=10mA Conditions Load Regulation VDIF 1 Conditions RREJ Conditions *4 VC, IH Control Voltage (Output OFF)*3 VC, IL VC Control Current(Output ON) Terminal Control Current(Output OFF) VIN=5V, VC=0V ±0.3 ±0.3 Tj=0 to 100°C Tj=0 to 100°C 60 60 VIN=VO+1V, f=100 to 120HZ, IO=0.1A VIN=5V, f=100 to 120HZ, IO=0.1A 0.8 100 100 VC=2.7V –5 0 VC=0V VC=2.7V –5 0 VC=0V mV V mA µA A 2 0.8 mV dB VIN=5V 2 V mV/ °C 3.2 IC, IH IC, IL 1.5 1 VIN=VO+1V Conditions Conditions 1 VIN=5V, IO=0A, VC=2V 3.2 Conditions Control Voltage (Output ON)*3 1.5 VIN=VO+1V, VC=0V ∆VO/∆Ta IS1 0.6 IO=3A 1 Conditions Current*2 VIN=5V, IO=0 to 3A VIN=VO+1V, IO=0A, VC=2V Iq (OFF) Ripple Rejection 40 0.6 Iq Temperature Coefficient of Output Voltage 10 IO=3A (VO=2.5V) Conditions Circuit Current at Output OFF 3.366 VIN=4.5 to 5.5V, IO=10mA VIN=3.3V, IO=0 to 3A (VO=2.5V) Conditions Quiescent Circuit Current 3.300 40 Conditions Dropout Voltage max. VIN=5V, IO=10mA VIN=3.3 to 5V, IO=10mA (VO=2.5V) ∆VOLOAD Unit typ. 10 ∆VOLINE Line Regulation Overcurrent Protection Starting VO (VADJ) SI-3033ZD typ. V µA µA *1: Set the input voltage to 2.4V or higher when setting the output voltage to 2.0V or lower. *2: IS1 is specified at the –5% drop point of output voltage VO under the condition of Output Voltage parameter. *3: Output is OFF when the output control terminal (VC terminal) is open. Each input level is equivalent to LS-TTL level. Therefore, the device can be driven directly by LS-TTLs. *4: These products cannot be used for 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 80 ICs SI-3000ZD Series ■External Dimensions (TO263-5) (Unit : mm) 10.0 1.2 +0.10 1.3 –0.05 (6.8) ±0.1 (R0.3) ±0.2 4.9 2.54 ±0.3 2.0 ±0.10 ±0.3 ±0.2 2.4 (R0.3) (0.75) ±0.2 4.9 0.88 Pin Assignment q VC w VIN e GND (Common to the rear side of product) r VO t Sense (ADJ for SI-3011ZD) 15.30 15.3 9.2± ±0.3 ±0.15 0.10 (3°) (3°) ±0.2 (2×R0.45) (3°) ±0.2 ±0.2 9.2 (4.6) 3-R0.3 φ1.5 Dp: (4.4) ±0.2 4.5 (1.75) (15°) ±0.2 (8.0) ±0.2 (0.40) Case temperature measurement point 0~6° (0.5) ±0.1 ±0.1 ±0.25 (1.7 0.8 ±0.25 ) (1.7 ) 1 2 3 4 ±0.25 (1.7 0.8 ±0.25 (1.7 ) ) 5 ±0.2 9.9 (3°) (3°) Plastic Mold Package Type Flammability: UL94V-0 Product Mass: Approx. 1.48g 2-R0.3 10.0 0.1 ±0.02 ■Block Diagram SI-3011ZD VIN 2 4 * R3 Drive ON/ OFF 1 TSD OCP AMP1 5 - + + REF R1 + CIN VC CIN: Input capacitor (Approx. 10µF) CO: Output capacitor (47µF or larger) The output voltage may oscillate if a low ESR type capacitor (such as a ceramic capacitor) is used for the output capacitor in the SI-3000ZD Series. VO + ADJ CO - R2 + 3 GND SI-3033ZD VIN 2 4 R1, R2: Output voltage setting resistors The output voltage can be set by connecting R1 and R2 as shown at left. The recommended value for R2 is 10kΩ or 11kΩ. VO + 5 CIN VC ON/ OFF 1 TSD OCP AMP1 - + SENSE + REF + Drive R1= (VO–VADJ) / (VADJ/R2) *: Insert R3 in case of setting VO to VO ≤ 1.8V. The recommended value for R3 is 10kΩ. CO + 3 GND ■Reference Data Copper Laminate Area (on Glass-Epoxy Board) vs. Thermal Resistance (from Junction to Ambient Temperature) (Typical Value) Junction to Ambient Temperature Thermal Resistance θ j-a (°C/W) 55 • A higher heat radiation effect can be achieved by enlarging the copper laminate area connected to the inner frame to which a monolithic IC is mounted. • Obtaining the junction temperature Measure GND terminal temperature TC with a thermocouple, etc. Then substitute this value in the following formula to obtain the junction temperature. 50 When Using Glass-Epoxy Board of 40 × 40 mm 45 40 Tj=PD×θ j–C+TC PD= (VIN–VO)•IOUT 35 30 0 200 400 600 800 1000 1200 1400 1600 1800 Copper Laminate Area (mm2) ICs 81