ISL6520B Intersil Corporation, ISL6520B Datasheet
ISL6520B
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ISL6520B Summary of contents
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... Data Sheet Single Synchronous Buck Pulse-Width Modulation (PWM) Controller The ISL6520B makes simple work out of implementing a complete control scheme for a DC-DC stepdown converter. Designed to drive N-channel MOSFETs in a synchronous buck topology, the ISL6520B integrates the control, output adjustment and monitoring functions into a single 8-Lead package ...
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... Typical Application 5V R PULLUP SHUTDOWN R OFFSET 2 ISL6520B VCC POR AND SOFTSTART PWM ERROR COMPARATOR AMP + - + - OSCILLATOR FIXED 300kHz C D DCPL VCC BOOT 5 1 ISL6520B UGATE COMP/ PHASE LGATE GND FB GATE CONTROL LOGIC PWM VCC GND V IN BOOT C ...
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... ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2 Operating Conditions Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10% Ambient Temperature Range - ISL6520BC . . . . . . . . . . 0 Ambient Temperature Range - ISL6520BI . . . . . . . . . -40 Junction Temperature Range . . . . . . . . . . . . . . . . . -40 CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied ...
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... VCC pin. The POR function initiates the soft start operation. Soft Start The ISL6520B is held in reset with both UGATE and LGATE driven to ground until the POR threshold on VCC has been reached and the COMP/SD pin has been pulled above 0.8V. If COMP is not actively pulled high following POR the internal 20µ ...
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... ISL6520B. If there is nowhere for this current to go, such as to other distributed loads on the V rail, through a voltage limiting protection CC device, or other methods, the capacitance on the V will absorb the current. This situation will allow voltage level of the V rail to increase ...
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... ESR 2π The compensation network consists of the error amplifier (internal to the ISL6520B) and the impedance networks Z and Z . The goal of the compensation network is to provide FB a closed loop transfer function with the highest 0dB crossing frequency (f ) and adequate phase margin ...
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... Given a sufficiently fast control loop design, the ISL6520B will provide either 0% or 100% duty cycle in response to a load transient. The response time is the time required to slew the inductor current from an initial current value to the transient current level ...
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... V develops a floating supply voltage referenced to the PHASE pin. The supply is refreshed to a voltage of V diode drop (V ISL6520B DC-DC Converter Application Circuit Figure 7 shows an application circuit of a DC-DC Converter. Detailed information on the circuit, including a complete Bill- of-Materials and circuit board description, can be found in Application Note AN9932 ...
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... The lead width “B”, as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch). 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. 9 ISL6520B M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE M ...
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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 10 ISL6520B L16.4x4 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220-VGGC ISSUE C) ...