SI-3050LSA

1-1-4 Linear Regulator ICs SI-3000LSA Series Surface-Mount, Low Current Consumption, Low Dropout Voltage ■Features ■Absolute Maximum Ratings • Compact surface-mount package (SOP8) Parameter • Output current: 1 A • Low circuit current at output OFF: Iq(OFF) ≤ 1 µA (VC = 0 V) VDIF ≤1.2 V (IO = 1 A) for SI-3018LSA • Output ON/OFF control terminal voltage compatible with LS-TTL Unit VIN 16 V Output control terminal voltage VC VIN V DC Output Current IO 1 A PD1*1 1.16 W PD2*2 1.1 W Tj*3 –30 to +150 °C Operating Ambient Temperature Top –30 to +150 °C Storage Temperature Tstg –30 to +150 °C Thermal Resistance (Junction to Lead (pin 8)) θ j-L 36 °C/W Thermal Resistance (Junction to Ambient Air) θ j-a *2 100 °C/W Junction Temperature • 4 types of output voltages (1.8 V, 2.5 V, 3.3 V, 5.0 V) available Ratings DC Input Voltage Power Dissipation • Low dropout voltage: VDIF≤0.8 V (at IO = 1 A) (Ta=25°C) Symbol *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 be activated if the junction temperature exceeds 135°C. es ig ns • Built-in foldback-type-overcurrent and thermal protection circuits ■Applications • Auxiliary power supplies for PC ■Recommended Operating Conditions ew D • Battery-driven electronic equipment Ratings Symbol VIN DC Output Current Range IO Operating Junction Temperature Tjop Operating Ambient Temperature Taop 3.1 to 3.5*1 SI-3018LSA 1.764 1.800 1.836 2.450 2.500 2.550 3.234 VIN=3.3V, IO=0.5A 2 max. min. 3.300 3.366 4.90 VIN=5V, IO=0.5A 0.4 – max. 5.00 5.10 0.4 IO≤0.5A 0.8 10 2 10 3 10 3 15 10 10 VIN=3.3V, IO=0 to 1A VIN=3.3V, IO=0 to 1A VIN=5V, IO=0 to 1A VIN=6V, IO=0 to 1A ±0.3 ±0.3 ±0.3 ±0.5 VIN=3.3V, IO=5mA, Tj=0 to 100°C VIN=3.3V, IO=5mA, Tj=0 to 100°C VIN=5V, IO=5mA, Tj=0 to 100°C VIN=6V, IO=5mA, Tj=0 to 100°C ot RREJ 55 55 VIN=5V, f=100 to 120HZ VIN=6V, f=100 to 120HZ 1.7 1.7 1.7 1.7 Control Voltage (Output OFF)*2 VC, IH VIN=3.3V, IO=0A 2.5 VIN=3.3V, IO=0A 1 VIN=3.3V, IO=0A, VC=0V 1.2 1.2 VIN=3.3V Conditions VIN=5V, IO=0A, VC=0V VIN=6V, IO=0A, VC=0V 1.2 2.0 40 80 40 80 0 –5 0 –5 0.8 0.8 40 80 40 80 0 –5 0 –5 VC=2V VC=0V *1: Is1 is specified at 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 LS-TTL level. Therefore, the device can be driven directly by LS-TTLs. *3: These products cannot be used in the following applications. Because these applications require a certain current at start-up and so 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 70 ICs dB mA µA A VIN=6V 2.0 0.8 Conditions IC, IL 1 VIN=5V 2.0 mV/ °C VIN=6V, IO=0A 1.2 0.8 mV 2.5 1 VIN=3.3V 2.0 2.5 VIN=5V, IO=0A 1 VIN=3.3V, IO=0A, VC=0V VC, IL IC, IH 2.5 mV 30 57 Conditions ON)*2 20 VIN=3.3V, f=100 to 120HZ Conditions IS1 20 60 Iq(OFF) Conditions 20 VIN=3.3V, f=100 to 120HZ Iq V 0.8 IO≤1A 10 Conditions V VIN=6V, IO=0.5A IO≤0.5A 0.8 Unit typ. 0.4 IO≤0.5A 1.2 SI-3050LSA typ. 10 Conditions Control Current (Output OFF) VIN=3.3V, IO=0.5A – ∆VO/∆Ta Control Current (Output ON) SI-3033LSA min. ∆VOLOAD Overcurrent Protection Starting Current*1,3 Terminal SI-3025LSA VIN=6 to 7V, IO=0.3A Circuit Current at Output OFF VC (Ta=25°C, VC=2V, unless otherwise specified) Ratings VIN=4.5 to 5.5V, IO=0.3A Quiescent Circuit Current Control Voltage (Output °C VIN=3.1 to 3.5V, IO=0.3A N Ripple Rejection –30 to +85 VIN=3.1 to 3.5V, IO=0.3A Conditions Temperature Coefficient of Output Voltage A max. ec o Load Regulation V R Conditions to 8.0 °C typ. ∆VLINE Line Regulation *2 –20 to +125 min. 0.6 Conditions Unit SI-3050LSA to 5.2*1 0 to 1 max. m Conditions *2 typ. VDIF Dropout Voltage SI-3033LSA min. m VO en Symbol Conditions to 3.5*1 de ■Electrical Characteristics Output Voltage *2 d *1: VIN (max) and IO (max) are restricted by the relation PD = (VIN – VO) × IO. Please calculate these values referring to the reference data on page 71. *2: Refer to the Dropout Voltage parameter. Parameter SI-3025LSA rN DC Input Voltage Range SI-3018LSA fo Parameter V µA µA SI-3000LSA Series ■External Dimensions (SOP8) (Unit : mm) 5.1±0.4 1.27 0.15+0.1 –0.05 6 5 1 2 3 4 6.2±0.3 7 4.4±0.2 8 Pin Assignment q VIN w NC (Leave open) e VIN r VC t GND y GND u VO i VO 0.5±0.1 0.4±0.1 10 ° 1.27 es ig 0.12 M VIN 1 8 NC 2 7 VO ew D ■Block Diagram rN VO 6 VC 4 GND 5 7 3 de 6 GND CO: Output capacitor (22 µF or larger) CIN: Input capacitor (10 µF) This capacitor is required in the case of an inductive input line or long wiring. Tantalum capacitors are recommended for CIN and CO, particularly at low temperatures. * Leave pin 2 open. CO ot R VC + 5 ec o 4 VIN VO Load 2 m CIN 8 m + 1 GND en ■Typical Connection Diagram VIN d TSD fo + – VIN 3 ns 1.5±0.1 Plastic Mold Package Type Flammability: UL94V-0 Product Mass: Approx. 0.1g 0.05±0.05 0.10 0.4±0.1 1.55±0.15 0 to 0.995max. ■Reference Data Allowable Output Current (vs. VIN-VOUT Voltage Difference) VIN-IO max N PCB Copper Laminate Area vs. Junction to Ambient Air Thermal Resistance 150 140 1.2 PCB (glass-epoxy, 40×40mm) 160mm (40×40) mm Tj = 120°C (20% derating of 150°C) 1.0 The inner frame stage, on which the PTr is mounted, is directly connected to the VOUT pin. Therefore, enlarging the copper laminate area around the VOUT pin is really effective for a heat radiation. 130 120 Iout (max) (A) θ j-a (°C/W) 0.8 110 100 θ j-a=100°C/W 0.6 0.4 Ta=25°C 0.2 Ta=85°C 90 80 70 100 0 1000 Copper Laminate Area (mm2) 5000 1 2 3 4 VIN-VOUT Voltage Difference (V) ICs 71