ISL97519AIUZ-TK Intersil, ISL97519AIUZ-TK Datasheet

Page 1

... PART NUMBER (Note) ISL97519AIUZ ISL97519AIUZ-T* ISL97519AIUZ-TK* *Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations) ...

Page 2

... ISL97519A Thermal Information = +25°C) Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Operating Ambient Temperature . . . . . . . . . . . . . . . .-40°C to +85°C +0.3V) Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +135°C DD Power Dissipation . . . . . . . . . . . . . . . . . . . . . See Curves on page 5 Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 12V 0mA, FSEL = GND, T OUT OUT CONDITIONS ...

Page 3

Block Diagram REFERENCE VDD GENERATOR Pin Descriptions PIN NUMBER PIN NAME 1 COMP Compensation pin. Output of the internal error amplifier. Capacitor and resistor from COMP pin to ground Voltage feedback pin. Internal reference is 1.24V nominal. Connect ...

Page 4

Typical Performance Curves 5V 12V 5V 12V 620 kHz 5V 9V 620 kHz ...

Page 5

Typical Performance Curves 12V 3. 1.2MHz IN s FIGURE 7. TRANSIENT RESPONSE JEDEC JESD51-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 1.0 0.9 870mW 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 ...

Page 6

During the second cycle, the power FET turns off and the Schottky diode is forward biased, (see Figure 13). The energy stored in the inductor is pumped to the output supplying output current and charging the output capacitor. The Schottky ...

Page 7

Schottky Diode In selecting the Schottky diode, the reverse break down voltage, forward current and forward voltage drop must be considered for optimum converter performance. The diode must be rated to handle 2.0A, the current limit of the ISL97519A. The ...

Page 8

... For applications where the output voltage is greater than 25V, an external cascaded MOSFET is needed as shown in Figure 14. The voltage rating of the external MOSFET should be greater than A VDD INTERSIL ISL97519A FIGURE 14. CASCADED MOSFET TOPOLOGY FOR HIGH OUTPUT VOLTAGE APPLICATIONS 8 ISL97519A VALUES DC PATH BLOCK APPLICATION OUT ...

Page 9

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...