1-1-4 Linear Regulator ICs SI-3000ZF Series 5-Terminal, Low Dropout Voltage ■Features ■Absolute Maximum Ratings • Compact full-mold package (equivalent to TO220) Parameter 10 V VC 6 V DC Output Current IO*1 3.0 A PD1 20 (With infinite heatsink) W PD2 1.5 (Without heatsink, stand-alone operation) W Tj –30 to +125 °C Operating Ambient Temperature Top –30 to +100 °C Storage Temperature Tstg –30 to +125 °C Thermal Resistance (Junction to Case) θ j-c 5.0 °C/W Thermal Resistance (Junction to Ambient Air) θ j-a 66.7 (Without heatsink, stand-alone operation) °C/W Power Dissipation Junction Temperature • Built-in overcurrent and thermal protection circuits ■Applications • Secondary stabilized power supply (local power supply) Unit VIN*1 • Low dropout voltage: VDIF ≤ 0.7V (at IO = 3.0A) • Low circuit current at output OFF: Iq (OFF) ≤ 1µA Ratings Output Control Terminal Voltage DC Input Voltage • Output current: 3.0A (Ta = 25°C) Symbol ■Recommended Operating Conditions Parameter Symbol Ratings *2 to 6*1 Unit Input Voltage VIN Output Current 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 V *1: VIN (max) and IO (max) are restricted by the relationship PD = (VIN - VO) × IO. *2: Set the input voltage to 2.4V or higher when setting the output voltage to 2.0V or lower. ■Electrical Characteristics (Ta = 25°C, VC = 2V, unless otherwise specified) Symbol Parameter SI-3011ZF min. VADJ Reference Voltage max. 1.100 1.122 VIN=VO+1V, IO=10mA ∆VOLINE Line Regulation 10 Conditions VIN=3.3 to 5V, IO=10mA (VO=2.5V) ∆VOLOAD Load Regulation 40 Conditions VIN=3.3V, IO=0 to 3A (VO=2.5V) VDIF Dropout Voltage 0.7 Conditions IO=3A (VO=2.5V) Iq Quiescent Circuit Current 1 Conditions 1 Conditions VIN=VO+1V, VC=0V ∆VO/∆Ta Temperature Coefficient of Output Voltage ±0.3 Conditions 60 Conditions Overcurrent Protection Starting Current*2 *4 IS1 ON)*3 VC, IH Control Voltage (Output OFF)*3 VC, IL VC Control Current(Output ON) Terminal Control Current(Output OFF) 3.2 2 0.8 IC, IH IC, IL Conditions 100 VC=2.7V –5 0 VC=0V *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 Output Voltage parameter conditions. *3: Output is OFF when the output control terminal VC 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 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 82 ICs mV V mA µA A VIN=VO+1V Conditions mV dB VIN=VO+1V, f=100 to 120HZ, IO=0.1A Conditions V mV/ °C Tj=0 to 100°C RREJ Ripple Rejection 1.5 VIN=VO+1V, IO=0A, VC=2V Iq (OFF) Circuit Current at Output OFF Control Voltage (Output 1.078 Conditions Unit typ. V µA µA SI-3000ZF Series ■External Dimensions (TO220F-5) (unit : mm) 4.2±0.2 ±0.2 2.8 ±0.2 Pin Assignment q VC w VIN e GND r Vo t ADJ (17.9) 16.9±0.3 4.0±0.2 7.9±0.2 φ 3.2±0.2 0.5 10.0 (2.0) 2.6±0.1 ±0.15 0.95 Plastic Mold Package Type Flammability: UL94V-0 Product Mass: Approx. 2.3g 4.6±0.6 (4.6) +0.2 0.85 –0.1 +0.2 P1.7±0.7×4=6.8±0.7 0.45 –0.1 3.9±0.7 (4.3) 8.2±0.7 1 2 3 4 5 ■Typical Connection Diagram/Block Diagram CIN: Input capacitor (Approx. 10µF) This capacitor is required when the input line contains inductance or when the wiring is long. CO: Output capacitor (47µF or higher) The output voltage may oscillate if a low ESR type capacitor (such as a ceramic capacitor) is used for the output capacitor in SI-3000ZF. SI-3011ZF VIN 2 4 VO + * R3 Drive VC ON/ OFF 1 TSD OCP AMP1 5 - + + REF R1 + CIN ADJ - CO R2 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. + 3 GND R1= (VO–VADJ) / (VADJ/R2) *: Insert R3 in case of setting VO to VO ≤ 1.8V. The recommended value for R3 is 10kΩ. ■Ta-PD Characteristics Power Dissipation PD (W) 25 With Infinite Heatsink 20 15 10 With Silicone Grease Heatsink: Aluminum 200×200×2mm (2.3°C/W) 100×100×2mm (5.2°C/W) 75×75×2mm (7.6°C/W) 5 Without heatsink 0 –30 0 25 50 75 100 Ambient Temperature Ta (°C) ICs 83