●SI-3000LSA Series SI-3000LSA Series Surface-Mount, Low Current Consumption, Low Dropout Voltage Dropper Type ■Features • • • • Compact surface-mount package (SOP-8) Output current: 1 A Low current consumption: Iq(OFF) ( 1 µA (VC = 0 V) Low dropout voltage: VDIF≤0.8 V (at IO = 1 A) VDIF ≤1.2 V (IO = 1 A) for SI-3018LSA • 4 types of output voltages (1.8 V, 2.5 V, 3.3 V, 5.0 V) available • Output ON/OFF control compatible with LS-TTL • Built-in foldback overcurrent, thermal protection circuits ■Applications • Auxiliary power supply for PC • Battery-driven electronic equipme ■Absolute Maximum Ratings Parameter (Ta=25°C) Symbol Ratings Unit DC Input Voltage VIN 16 V DC Output Current IO 1 A PD1*1 1.16 W Power Dissipation PD2*2 1.1 W Junction Temperature Tj*3 –30 to +150 °C Ambient Operating Temperature Top –30 to +150 °C Storage Temperature Tstg –30 to +150 °C Thermal Resistance (Junction to Lead (pin 8)) Thermal Resistance (Junction to Ambient Air) θ j-I 36 °C/W θ j-a *2 100 °C/W *1: When mounted on glass-epoxy board 56.5 × 56.5 mm (copper laminate area 100%) *2: When mounted on glass-epoxy board 40 × 40 mm (copper laminate area 100%). *3: Thermal protection circuits may operate if the junction temperature exceeds 135°C ■Recommended Operating Conditions Parameter Ratings Symbol SI-3018LSA 3.1 to 3.5*1 SI-3025LSA *2 Unit SI-3033LSA to 3.5*1 *2 to 5.2*1 SI-3050LSA *2 DC Input Voltage Range VIN DC Output Current Range IO 0 to 1 A Operating Junction Temperature Tjop –20 to +125 °C Ambient Operating Temperature Taop –30 to +85 °C *1: VIN (max) and IO (max) are restricted by the relationship PD = (VIN – VO) × IO. Calculate these values referring to the reference data. *2: Refer to the dropout voltage section. to 8.0 V ●SI-3000LSA Series ■Electrical Characteristics (Ta=25°C, VC=2V unless otherwise specified) Ratings SI-3018LSA Symbol Parameter VO Output Voltage SI-3033LSA min. typ. max. min. typ. max. min. typ. max. 1.764 1.800 1.836 2.450 2.500 2.550 3.234 3.300 3.366 4.90 5.00 5.10 VIN=3.3V, IO=0.5A VDIF – Conditions – VIN=3.3V, IO=0.5A VIN=5V, IO=0.5A 0.4 0.8 2 Conditions Conditions 2 10 10 20 VC, IL ±0.5 VIN=6.5V, IO=5mA, Tj=0 to 100°C 55 1.7 1.7 1.7 1.7 2.5 VIN=3.3V, IO=0A 2.5 VIN=3.3V, IO=0A 1 1 2.5 VIN=6.5V, IO=0A 1 1 VIN=3.3V, IO=0A, VC=0V VIN=3.3V, IO=0A, VC=0V VIN=5V, IO=0A, VC=0V VIN=6.5V, IO=0A, VC=0V 1.2 1.2 1.2 1.2 VIN=3.3V VIN=3.3V 2.0 VIN=5V 2.0 40 2.0 0.8 80 40 0.8 80 0.8 40 80 40 80 0 –5 0 –5 VC=2V 0 –5 0 –5 VC=0V Conditions VO 0.5 Conditions 0.5 VIN=3.3V, IO=0A VIN=3.3V, IO=0A 0.5 VIN=5V, IO=0A 0.5 VIN=6.5V, IO=0A dB mA µA A VIN=6V 2.0 0.8 IC, IL Output OFF Voltage 2.5 VIN=5V, IO=0A Conditions Control Current (Output OFF) mV/°C VIN=6.5V, f=100 to 120HZ IC, IH Control Current (Output ON) Pin ±0.3 VIN=5V, IO=5mA, Tj=0 to 100°C 55 IS1 VC, IH ±0.3 VIN=3.3V, IO=5mA, Tj=0 to 100°C VIN=5V, f=100 to 120HZ Conditions Control Voltage (Output OFF)*2 mV VIN=6.5V, IO=0 to 1A 57 Conditions Control Voltage (Output ON)*2 30 VIN=3.3V, f=100 to 120HZ Iq(OFF) Starting Current*1,3 20 VIN=5V, IO=0 to 1A mV 60 Conditions Overcurrent Protection 15 VIN=6 to 7V, IO=0.3A VIN=3.3V, f=100 to 120HZ Iq OFF Circuit Current 20 VIN=3.3V, IO=0 to 1A ±0.3 RREJ Current V 0.8 10 10 Conditions VIN=3.3V, IO=5mA, Tj=0 to 100°C Quiescent Circuit 3 VIN=4.5 to 5.5V, IO=0.3A VIN=3.3V, IO=0 to 1A Conditions 10 VIN=3.1 to 3.5V, IO=0.3A ∆VO/∆Ta Ripple Rejection VC 10 VIN=3.1 to 3.5V, IO=0.3A ∆VOLOAD cient of Output Voltage 0.8 IO≤1A ∆VLINE Temperature Coeffi- 0.4 IO≤0.5A IO≤0.5A 1.2 V VIN=6.5V, IO=0.5A 0.4 IO≤0.5A Conditions Load Regulation Unit max. 0.6 Line Regulation SI-3050LSA typ. Conditions Dropout Voltage SI-3025LSA min. V µA µA V *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-3033LSA), and IO = 0.5 A. *2: Output is OFF when the output control terminal VC is open. Each input level is equivalent to that for LS-TTL. Therefore, it is possible to be driven directly by an LS-TTL circuit. The SI-3000LSA series employs a foldback-type overcurrent protection circuit. *3: In applications in which a certain current is required for start-up, this circuit may cause a start-up error, and therefore the SI-3000LSA series is not recommended for use in such applications. (1) Constant current load (2) Dual polarity power supply (3) Series power supply (4) VO adjustment by raising ground voltage ■External Dimensions (Unit : mm) 5.1±0.4 1.27 6 5 1 2 3 4 6.2 ±0.3 7 4.4±0.2 8 10 ° 1.27 1.5 ±0.1 0.05 ±0.05 0.10 0.12 M 1.55±0.15 0~ 0.995max. 0.4 ±0.1 0.15+0.1 –0.05 0.5 ±0.1 0.4 ±0.1 Pin Arrangement q VIN w NC (Leave open) e VIN r VC t GND y GND u VO i VO Plastic Mold Package Type Flammability: UL94V-0 Weight: Approx. 0.1g ●SI-3000LSA Series ■Block Diagram VIN 1 8 NC 2 7 VO VO + – VIN 3 TSD 6 VC 4 5 GND GND ■Standard External Circuit + CIN 1 8 2 7 3 6 4 5 VO + VIN GND CO VC Load VIN CO : Output capacitor (22 µF or larger) CIN : Input capacitor (0.1 to 10 µF) This capacitor is required in the case of an inductive input line or long wiring. Tantalum capacitors are recommended for C1 and C0, particularly at low temperatures. * Leave pin 2 open. ■Reference Data PWB Copper Laminate Area vs. Junction to Ambient Air Thermal Resistance Allowable Output Current (vs. VIN-VOUT Voltage Difference) VIN-IO max 150 140 1.2 PWB (glass-epoxy, 40×40mm) 160mm (40×40) mm Tj = 120°C (20% derating of 150°C) 1.0 130 Iout (max) (A) θ j-a (°C/W) 0.8 120 110 100 θ j-a=100°C/W 0.6 0.4 Ta=25°C 0.2 Ta=85°C 90 80 70 100 0 1000 5000 Copper Laminate Area (mm ) 2 1 2 3 VIN-VOUT Voltage Difference (V) The inner frame stage, on which the PTr is mounted, is directly connected to the VOUT pin. Therefore, enlarging the copper laminate area achieves a heat radiation effect of the VOUT pin. 4 ●SI-3000LSA Series ■Typical Characteristics of SI-3018LSA (Ta=25°C) IO vs. VDIF Characteristics Load Regulation Output ON/OFF Control 1.84 1.0 3 VIN=3.3V IO=5mA 0.6 0.4 0.2 1.80 VIN=8V 5V 3.2V 1.78 1.76 0.2 0.4 0.6 0.8 1.0 1.72 0 0.2 1 0.4 0.6 0.8 0 0 1.0 Output Current IO (A) Output Current IO (A) Output Voltage Characteristics Terminal Control Current lC ( µ A) 6V VIN= =3 .2V VIN=5V VIN Output Voltage VO (V) 1 1 0.5 0 0 1 2 3 4 0 0 5 0.5 Input Voltage VIN (V) 1 1.5 Line Regulation 50 40 30 20 10 0 0 2 1 2 3 Output Control Voltage VC (V) Thermal Protection Characteristics Circuit Current 3 20 VIN=3.3V IO=5mA 1.80 IO=1A 0.75A 0.5A 0.25A 0A 1.78 1.76 Ground Current IG (mA) Output Voltage VO (V) 1.82 2 1 1.74 1.72 0 VIN=3.3V IO=5mA Output Current IO (A) 1.84 3 60 1.5 IO=0A-1A 0.25A step 2 Output ON/OFF Control Current 2 2 1 Output ON/OFF Control Voltage VC (V) Overcurrent Protection Characteristics 3 Output Voltage VO (V) 2 1.74 0 0 Output Voltage VO (V) Output Voltage VO (V) Output Voltage VO (V) Dropout Voltage VDIF (V) 1.82 0.8 2 4 6 Input Voltage VIN (V) 8 10 0 0 20 60 100 140 180 Case Temperature TC (°C) [Note on Thermal Protection] The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation is not guaranteed for continuous heating conditions such as short-circuiting over extended periods of time. 15 IO=1A-0A 0.25A step 10 5 0 0 2 4 6 Input Voltage VIN (V) 8 10 ●SI-3000LSA Series ■Typical Characteristics of SI-3025LSA (Ta=25°C) Load Regulation 0.8 2.56 0.6 0.4 0.2 Output ON/OFF Control 3 Output Voltage VO (V) 2.58 Output Voltage VO (V) Dropout Voltage VDIF (V) IO vs. VDIF Characteristics 1.0 0V 2.54 VIN =1 8V 2.52 5V 3.2V 2.50 2 VIN=3.3V IO=5mA 1 2.48 0.2 0.4 0.6 0.8 1.0 2.46 0 0.2 Output Current IO (A) 0.6 0.8 0 0 1.0 Output Voltage Characteristics Overcurrent Protection Characteristics 0 0 1 2 3 4 2 6V 1 0 0 5 Terminal Control Current lC ( µ A) 1 0.5 1 1.5 VIN=3.3V IO=5mA 50 40 30 20 10 0 0 2 Line Regulation 1 2 3 Output Control Voltage VC (V) Output Current IO (A) Input Voltage VIN (V) Thermal Protection Characteristics 2.58 3 60 VIN=3.2V Output Voltage VO (V) IO=0A-1A 0.25A step 2 Output ON/OFF Control Current 3 2 1 Output ON/OFF Control Voltage VC (V) Output Current IO (A) 3 Output Voltage VO (V) 0.4 5V 0 0 Circuit Current 3 20 2.54 2.52 2.50 Ground Current IG (mA) IO=1A 0.75A 0.5A 0.25A 0A Output Voltage VO (V) Output Voltage VO (V) 2.56 2 VIN=3.3V IO=5mA 1 2.48 2.46 0 2 4 6 8 Input Voltage VIN (V) 10 12 0 0 20 60 100 140 180 Case Temperature TC (°C) [Note on Thermal Protection] The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation is not guaranteed for continuous heating conditions such as short-circuiting over extended periods of time. 15 IO=1A-0A 0.25A step 10 5 0 0 2 4 6 Input Voltage VIN (V) 8 10 ●SI-3000LSA Series ■Typical Characteristics of SI-3033LSA (Ta=25°C) IO vs. VDIF Characteristics Load Regulation 0.6 0.4 0.2 V VIN=6 5V 3.30 Output Voltage VO (V) Output Voltage VO (V) 4.3V 3.28 3.26 3 VIN=5V IO=5mA 2 1 3.24 0.2 0.4 0.6 0.8 1.0 3.22 0 0.2 0.4 0.6 0.8 0 0 1.0 Output Current IO (A) Output Current IO (A) Output Voltage Characteristics Overcurrent Protection Characteristics 4 IO=0A-1A 0.25A step 1 0 0 1 2 3 4 5 3 2 3V 4. V = IN 1 0 0 6 0.5 1 1.5 VIN=5V IO=5mA 50 40 30 20 10 0 0 2 Line Regulation 1 2 3 Output Control Voltage VC (V) Output Current IO (A) Input Voltage VIN (V) Thermal Protection Characteristics Circuit Current 4 3.34 3 60 5V 6V Output Voltage VO (V) 2 2 Output ON/OFF Control Current 4 3 1 Output ON/OFF Control Voltage VC (V) Terminal Control Current lC ( µ A) Dropout Voltage VDIF (V) 4 3.32 0.8 0 0 Output Voltage VO (V) Output ON/OFF Control 3.34 1.0 20 3.30 IO= 1A 0.75A 0.5A 0.25A 0A 3.28 3.26 Ground Current lG (mA) Output Voltage VO (V) Output Voltage VO (V) 3.32 3 VIN=5V IO=5mA 2 1 15 IO=1A-0A 0.25A step 10 5 3.24 3.22 0 2 4 6 8 Input Voltage VIN (V) 10 12 0 0 20 60 100 140 180 Case Temperature TC (°C) [Note on Thermal Protection] The thermal protection circuit is intended for protection against heat during instantaneous short-circuiting. Its operation is not guaranteed for continuous heating conditions such as short-circuiting over extended periods of time. 0 0 2 4 6 Input Voltage VIN (V) 8 10