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LTM8032IVPBF Datasheet(PDF) 6 Page - Linear Technology |
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LTM8032IVPBF Datasheet(HTML) 6 Page - Linear Technology |
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6 / 20 page  LTM8032 6 8032fa 90 70 50 30 10 –10 0 VIN = 13V VOUT = 10V AT 2A 100 200 300 400 500 FREQUENCY (MHz) 600 700 800 900 1000 8031 G21 90 70 50 30 10 –10 0 VIN = 36V VOUT = 10V AT 2A 100 200 300 400 500 FREQUENCY (MHz) 600 700 800 900 1000 8031 G20 TYPICAL PERFORMANCE CHARACTERISTICS Temperature Rise vs Load Current, VOUT = 10V Radiated Emissions Radiated Emissions TA = 25°C, unless otherwise noted. LOAD CURRENT (mA) 0 30 40 50 2000 8032 G19 20 10 25 35 45 15 5 0 500 1000 1500 2500 24VIN 36VIN PIN FUNCTIONS VIN (Bank 3): The VIN pin supplies current to the LTM8032’s internal regulator and to the internal power switch. This pin must be locally bypassed with an external, low ESR capacitor of at least 2.2μF. FIN (K3, L3): Filtered Input. This is the node after the input EMI filter. Use this only if there is a need to modify the behavior of the integrated EMI filter or if VIN rises or falls rapidly; otherwise, leave these pins unconnected. See the Applications Information section for more details. GND (Bank 2): Tie these GND pins to a local ground plane below the LTM8032 and the circuit components. Return the feedback divider (RADJ) to this net. VOUT (Bank 1): Power Output Pins. Apply the output filter capacitor and the output load between these pins and GND pins. AUX (Pin H5): Low Current Voltage Source for BIAS. In many designs, the BIAS pin is simply connected to VOUT. The AUX pin is internally connected to VOUT and is placed adjacent to the BIAS pin to ease printed circuit board rout- ing. Although this pin is internally connected to VOUT, do not connect this pin to the load. If this pin is not tied to BIAS, leave it floating. BIAS (Pin H4): The BIAS pin connects to the internal power bus. Connect to a power source greater than 2.8V. If the output is greater than 2.8V, connect this pin to AUX. If the output voltage is less, connect this to a voltage source between 2.8V and 25V. Also, make sure that BIAS + VIN is less than 56V. RUN/SS (Pin L5): Pull RUN/SS pin to less than 0.2V to shut down the LTM8032. Tie to 2.5V or more for normal operation. If the shutdown feature is not used, tie this pin to the VIN pin. RUN/SS also provides a soft-start function; see the Applications Information section. RT (Pin G7): The RT pin is used to program the switching frequency of the LTM8032 by connecting a resistor from this pin to ground. The Applications Information section of the data sheet includes a table to determine the resistance value based on the desired switching frequency. Minimize capacitance at this pin. SHARE (Pin H7): Tie this to the SHARE pin of another LTM8032 when paralleling the outputs. Otherwise, do not connect. |
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