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S-8353A35MC-IQUT2U Datasheet(PDF) 10 Page - Seiko Instruments Inc |
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S-8353A35MC-IQUT2U Datasheet(HTML) 10 Page - Seiko Instruments Inc |
10 / 49 page STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR S-8353/8354 Series Rev.3.0_01 10 Electrical Characteristics (1) 50 kHz Product (A and D Types) Table 14 (Ta = 25 °C unless otherwise specified) Item Symbol Condition Min. Typ. Max. Unit Measurement circuit Output voltage VOUT − VOUT(S) × 0.976 VOUT(S) VOUT(S) × 1.024 V 2 Input voltage VIN − − − 10 V 2 Operation start voltage VST1 IOUT = 1 mA − − 0.9 V 2 Oscillation start voltage VST2 No external parts, Voltage applied to VOUT − − 0.8 V 1 Operation holding voltage VHLD IOUT = 1 mA, Judged by decreasing VIN voltage gradually 0.7 − − V 2 Current consumption 1 ISS1 VOUT = VOUT(S) × 0.95 S-835xx15 to 19 − 10.8 18.0 μA 1 S-835xx20 to 29 − 13.3 22.2 μA 1 S-835xx30 to 39 − 18.7 31.1 μA 1 S-835xx40 to 49 − 24.7 41.1 μA 1 S-835xx50 to 59 − 31.0 51.6 μA 1 S-835xx60 to 65 − 37.8 63.0 μA 1 Current consumption 2 ISS2 VOUT = VOUT(S) + 0.5 V S-835xx15 to 19 − 4.8 9.5 μA 1 S-835xx20 to 29 − 5.0 9.9 μA 1 S-835xx30 to 39 − 5.1 10.2 μA 1 S-835xx40 to 49 − 5.3 10.6 μA 1 S-835xx50 to 59 − 5.5 10.9 μA 1 S-835xx60 to 65 − 5.7 11.3 μA 1 Current consumption during shutdown (With shutdown function) ISSS OFF / ON V = 0 V − − 0.5 μA 1 Switching current ISW VCONT = 0.4 V S-835xx15 to 19 80 128 − mA 1 S-835xx20 to 24 103 165 − mA 1 S-835xx25 to 29 125 200 − mA 1 S-835xx30 to 39 144 231 − mA 1 S-835xx40 to 49 176 282 − mA 1 S-835xx50 to 59 200 320 − mA 1 S-835xx60 to 65 215 344 − mA 1 Switching transistor leakage current ISWQ VCONT = VOUT = 10 V − − 0.5 μA 1 Line regulation ΔVOUT1 VIN = VOUT(S) × 0.4 to × 0.6 − 30 60 mV 2 Load regulation ΔVOUT2 IOUT = 10 μA to VOUT(S) / 250 × 1.25 − 30 60 mV 2 Output voltage temperature coefficient OUT OUT V Ta ∆ V ∆ • Ta = −40°C to +85°C − ±50 − ppm / °C 2 Oscillation frequency fOSC VOUT = VOUT(S) × 0.95 42.5 50 57.5 kHz 1 Maximum duty ratio MaxDuty VOUT = VOUT(S) × 0.95 75 83 90 % 1 PWM / PFM switching duty ratio (For S-8354 Series) PFMDuty VIN = VOUT(S) − 0.1 V, No-load 10 15 24 % 1 OFF / ON pin input voltage (With shutdown function) VSH Measured oscillation at CONT pin 0.75 − − V 1 VSL1 Judged oscillation stop at CONT pin At VOUT ≥1.5 V − − 0.3 V 1 VSL2 At VOUT <1.5 V − − 0.2 V 1 OFF / ON pin input current (With shutdown function) ISH OFF / ON V = VOUT(S) × 0.95 − 0.1 − 0.1 μA 1 ISL OFF / ON V = 0 V − 0.1 − 0.1 μA 1 Soft start time tSS − 3.0 6.0 12.0 ms 2 Efficiency EFFI − − 85 − % 2 |
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