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APE1911 Datasheet(PDF) 1 Page - Advanced Power Electronics Corp. |
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APE1911 Datasheet(HTML) 1 Page - Advanced Power Electronics Corp. |
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1 / 9 page  Advanced Power Electronics Corp. FEATURES DESCRIPTION Input Voltage：3V to 20V Output Voltage：3.3V to 32V Duty Ratio：0% to 85% PWM Control Oscillation Frequency：500KHz. Enable and Thermal Shutdown Function. Internal Current Limit. Built-in N-channel MOSFET ESOP-8 & Pb-Free Package. Data and specifications subject to change without notice 201010182 APE1911 PACKAGE & ORDERING INFORMATION STEP-UP PWM DC/DC Converter 1 TYPICAL APPLICATION The APE1911 is high efficient step-up DC/DC converter. Large output current is possible having a built in internal N channel MOSFET, and using an external coil and diode. The APE1911 can be operated at switching frequencies of 500 kHz allowing for easy filtering and low noise, the size of the external components can be reduced. Output voltage is programmable with 1.0V of standard voltage supply internal, and using externally connected components, output voltage (FB) can be set up at will. The soft-start time can be programmed by outside capacitor; the function prevents overshoot at startup. Build inside Current limit, Thermal Shutdown and enable functions. VOUT = VFB x (1+R4/R3) , VFB = 1.0V, R3 = 1K ~3KΩ VCC=5V R4 11K C2 0.47uF C1 470uF D1 B340A C4 470uF L1 22uH Vout=12V U1 APE1911 6 2 4 1 3 8 7 5 SW Vcc SS EN FB SGND PGND SW C7 0.1uF C3 Option R3 1K R1 100K 0.47uF C8 C5 4.7uF Package Type MP : ESOP-8 APE1911X (Top View ) 1 2 3 4 8 7 6 5 SS FB ESOP-8 EN VCC SGND PGND SW SW Exposed pad (EP is connect to SW) |
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