SI-3000LLSL

1-1-1 Linear Regulator ICs SI-3000LLSL Series Surface-Mount, Low Current Consumption, Low Dropout Voltage Linear Regulator ICs ■Features • Low input voltage (1.3V) and low output voltage (1.0V) • Compact surface-mount package (SOP8) • Low dropout voltage: VDIF ≤ 0.3V (at IO = 1.5A) • Built-in overcurrent, input-overvoltage and thermal protection circuits • Built-in ON/OFF function (OFF state circuit current: 1µA max.) • Compatible with low ESR capacitors ■Absolute Maximum Ratings Parameter DC Input Voltage DC Bias Voltage Output Control Terminal Voltage DC Output Current Power Dissipation Junction Temperature Operating Ambient Temperature Storage Temperature Thermal Resistance (Junction to Lead (Pin 8)) Thermal Resistance (Junction to Ambient Air) Symbol VIN VB VC IO PD*1 Tj Top Tstg Ratings 10 10 VIN 1.5 1.1 –30 to +125 –30 to +100 –30 to +125 36 100 Unit (Ta=25°C) V V V A W °C °C °C °C/W °C/W θ (j-L) θ (j-a)*1 *1: When mounted on glass-epoxy board of 40 × 40mm (copper laminate area 100%). ■Applications • On-board local power supply • For stabilization of the secondary-side output voltage of switching power supplies ■Recommended Operating Conditions Ratings Parameter Input Voltage Bias Voltage Output Current Operating Ambient Temperature Symbol VIN VB IO Top SI-3010LLSL 1.4 to 3.6*1 3.3 to 5.5 0 to 1.5*1 –20 to +85*1 Unit V V A °C *1: VIN (max) and IO (max) are restricted by the relation PD = (VIN - VO) × IO. ■Electrical Characteristics Ratings Parameter Symbol min. Reference Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Circuit Current Circuit Current at Output OFF Temperature Coefficient of Output Voltage Overcurrent Protection Starting Current*1 Control Voltage (Output ON)*2 Control Voltage (Output OFF) VC Terminal Control Current (Output ON) Control Current (Output OFF) VADJ Conditions ∆VOLINE Conditions ∆VOLOAD Conditions VDIF Conditions Iq Conditions Iq (OFF) Conditions ∆VO/∆Ta Conditions IS1 Conditions VC, IH VC, IL IC, IH Conditions IC, IL Conditions 2 1.6 VC=0V ± 0.2 IO=1.0A 500 0.980 (Ta=25°C, V C=2V, VIN=1.8V, V B=3.3V, VO=1.5V unless otherwise specified) SI-3010LLSL typ. 1.000 IO=10mA 10 VIN=1.7 to 2.5V, IO=10mA 30 VIN=1.8V, IO=0 to 1.5A 0.3 800 1 max. 1.020 V mV mV V Unit IO=0A, R2=10kΩ µA µA mV/ °C A V Tj=0 to 100°C VIN=1.8V, VB=3.3V 0.8 50 VC=2.7V 10 VC=0.4V V µA µA *1: IS1 is specified at the 5% drop point of output voltage VO on the condition that VIN = overcurrent protection starting current, IO = 10 mA. *2: 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. 24 ICs SI-3000LLSL Series ■External Dimensions (SOP8) 5.1±0.4 1.27 0.4±0.1 0.15+0.1 –0.05 (unit : mm) 8 7 6 5 1 2 3 4 Pin Assignment q VO w ADJ e VB r VC t GND y GND u VIN i VIN Plastic Mold Package Type Flammability: UL94V-0 Product Mass: Approx. 0.1g 0.5±0.1 4.4±0.2 0.05±0.05 1.55±0.15 1.5±0.1 0t o1 0° 1.27 0.995max. 0.10 0.4±0.1 0.12 M ■Typical Connection Diagram/Block Diagram CIN, CB: Input and bias capacitors (Approx. 0.1 to 10µF) Required when the input line contains inductance or when the wiring is long. CO: Output capacitor (47µF or larger) SI-3010LLSL is designed to use a low ESR capacitor (such as a ceramic capacitor) for the output capacitor. The recommended ESR value for an output capacitor is 500mΩ or less (at room temperature). 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. 6.2±0.3 VIN + 7 8 R1 VOUT 1 CSS R1 OCP(2) ADJ 2 R2 6 5 GND + + CIN VB 3 REF + Drive AMP1 TSD OCP CO CB 4 VC ON/OFF + - Open:OFF Low: OFF High: ON R1= (VO–VADJ) / (VADJ/R2) CSS:Soft start capacitor The rising time of the output voltage can be set by connecting CSS between VOUT and ADJ. ■Reference Data Copper Laminate Area - Power Dissipation 1.2 1 Pd (W) Ta=25°C Ta=50°C 0.8 0.6 Ta=80°C 0.4 0.2 0 10 100 Copper Laminate Area (mm2) 1000 ICs 25