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AIC1596B-12CM Datasheet(PDF) 3 Page - Analog Intergrations Corporation |
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AIC1596B-12CM Datasheet(HTML) 3 Page - Analog Intergrations Corporation |
3 / 5 page AIC1596 3A STEP-DOWN PWM REGULATOR SPEC NO: DS-1596-P1 03/23/00 ANALOG INTEGRATIONS CORPORATION www.analog.com.tw 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510 3 ELECTRICAL CHARACTERISTICS (T J=25 °°°°C, VIN=18V) PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNIT Input Voltage 4.5 36 V AIC1596-25 (VIN > 4.5V) 2.5 V AIC1596-33 (VIN > 4.5V) 3.3 V AIC1596-50 (VIN > 7.0V ) 5.0 V Fixed Output Voltage AIC1596-12 (VIN > 15V ) 12.0 V Feedback Voltage AIC1596 Adjustable 1.25 V Output Voltage Regulation 4 % Quiescent Current Internal switch off 1 5 mA Shutdown Quiescent Current SHDN = 5V (OFF) 80 µA Logic Input High (Regulator OFF) 2 V Logic Input Low (Regulator ON ) 0.8 V Oscillator Frequency AIC1596A series 150 Oscillator Frequency AIC1596B series 300 KHz Output Current Limit 3.0 A Over Voltage Protection 120 % Maximum Duty Cycle 100 % Efficiency Vo=5V , Io=3A 90 % ! PIN DESCRIPTIONS PIN 1: IN Supply voltage input for the IC switching regulator. A suitable input bypass capacitor must be present at this pin to minimize voltage transients and to supply the switching currents needed by the regulator. PIN 2:OUT Internal switch. The voltage at this pin switches between (VIN-VSAT) and ap- proximately –0.5V, with a duty cycle of approximately VOUT/VIN. PIN 3: GND Ground requires a short, low noise connection to ensure good load regulation. PIN 4: FB Feedback input for fixed-output or adjustable-output version. Connect di- rectly to output for fixed operation version or to a resistor divider for ad- justable operation versions. PIN 5: SHDN Allows the switching regulator circuit to be shutdown using logic level sig- nals thus dropping the total input sup- ply current to approximately 80 µA. Drive it high to disable the reference, control circuitry and internal switches. Drive low or connect to GND for nor- mal operation. |
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