isl97519a Intersil Corporation, isl97519a Datasheet
isl97519a
Related parts for isl97519a
isl97519a Summary of contents
Page 1
... These features along with 1.2MHz switching frequency makes it an ideal device for portable equipment and TFT-LCD displays. The ISL97519A is available MSOP package with a maximum height of 1.1mm. The device is specified for operation over the full -40°C to +85°C temperature range. ...
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... Minimum Soft-Start Enable Voltage SS ILIM-V -en Current Limit Around SS Enable V SS OTP Over-Temperature Protection 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 ...
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... Frequency select pin. When FSEL is set low, switching frequency is set to 620kHz. When connected to high or VDD, switching frequency is set to 1.25MHz Soft-start control pin. Connect a capacitor to control the converter start-up. Typical Application Circuit R 3 1kΩ OPEN 4.7nF 3 ISL97519A FSEL EN SHUTDOWN AND START-UP OSCILLATOR CONTROL PWM LOGIC CONTROLLER COMPARATOR CURRENT SENSE GM AMPLIFIER COMP = 1 ...
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... 620kHz s 0 12V 80mA 1.25MHz 0 12V 80mA 620kHz s -0 (V) IN FIGURE 5. LINE REGULATION ISL97519A = 1.25 MHz s = 1.25MHz 800 1000 OUT 1.25MHz 5V 9V 620kHz s 800 1000 OUT 3.3V ...
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... AMBIENT TEMPERATURE (°C) FIGURE 9. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE Applications Information The ISL97519A is a high frequency, high efficiency boost regulator operated at constant frequency PWM mode. The boost converter stores energy from an input voltage source and delivers higher output voltage. The input voltage range is 2 ...
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... ESR can also be used. The output ripple can be calculated as shown in Equation 6: Δ For noise sensitive application, a 0.1µF placed in parallel with the larger output capacitor is recommended to reduce the switching noise coupled from the LX switching node OUT ISL97519A Δ ΔT 2 ΔV O SWITCH OPEN ⎛ ⎞ × ...
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... PWM switching frequency to SEL 620kHz. When connecting F frequency is set to 1.25MHz. Shutdown Control When the EN pin is pulled down, the ISL97519A is shutdown reducing the supply current to <1µA. Maximum Output Current The MOSFET current limit is nominally 2.0A and guaranteed 1.5A when V is greater than 2.8V. This restricts the ...
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... INTERSIL ISL97519A FIGURE 14. CASCADED MOSFET TOPOLOGY FOR HIGH OUTPUT VOLTAGE APPLICATIONS 8 ISL97519A VALUES DC PATH BLOCK APPLICATION OUT Note that there path in the boost converter from the I (mA) OMAX input to the output through the inductor and diode. The input ...
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... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 9 ISL97519A MDP0043 A MINI SO PACKAGE FAMILY ...