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AP3595 Dataheets PDF



Part Number AP3595
Manufacturers Diodes
Logo Diodes
Description DUAL PHASE SYNCHRONOUS RECTIFIED BUCK CONTROLLER
Datasheet AP3595 DatasheetAP3595 Datasheet (PDF)

A Product Line of Diodes Incorporated AP3595 DUAL PHASE SYNCHRONOUS RECTIFIED BUCK CONTROLLER Description The AP3595 is a compact dual phase synchronous rectified buck controller specifically designed to deliver high quality output voltage. This device operates at adjustable operation frequency and is capable of delivering up to 60A output current. This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion. The bootstrap di.

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A Product Line of Diodes Incorporated AP3595 DUAL PHASE SYNCHRONOUS RECTIFIED BUCK CONTROLLER Description The AP3595 is a compact dual phase synchronous rectified buck controller specifically designed to deliver high quality output voltage. This device operates at adjustable operation frequency and is capable of delivering up to 60A output current. This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion. The bootstrap diode is built-in to simplify the circuit design and minimize external part count. The AP3595 features configurable gate driving voltage for maximum efficiency and optimal performance. The built-in bootstrap diode simplifies the circuit design and reduces external part count and PCB space. The output voltage is precisely regulated to the reference input that is dynamically adjustable by external voltage divider. Other features include adjustable soft start, adjustable operation frequency, and quick response to step-load transient. With aforementioned functions, the IC provides customers a compact, high efficiency, well-protected and cost-effective solution. This IC is available in U-QFN4040-24 package. Pin Assignments (Top View) PHASE2 BOOT2 Pin 1 Mark RSET HG2 LG2 VID 24 REFIN VREF RT/EN IOFS COMP FB 23 22 21 20 19 18 VCC 1 2 3 4 5 6 7 FBRTN 17 PVCC EP 16 15 14 LG1 PHASE1 HG1 13 BOOT1 8 EAP 9 SS 10 CSN 11 CSP 12 PSI U-QFN4040-24 (FN Package) Features               Operate with Single Supply Voltage Simple Single Loop Voltage Mode Control 12V+12V Bootstrapped Drivers with Internal Bootstrap Diode Adjustable Over Current Protection by DCR Current Sensing Adjustable Current Balancing by RDS(ON) Current Sensing Adjustable Operation Frequency from 50kHz to 1MHz Per Phase External Compensation Dynamic Output Voltage Adjustment Adjustable Soft Start U-QFN4040-24 Package RoHS Compliant and 100% Lead (Pb)-free Totally Lead-free & Fully RoHS Compliant (Note1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Applications      Middle-High End GPU Core Power High End Desktop PC Memory Core Power Low Output Voltage, High Power Density DC-DC Converters Voltage Regulator Modules Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AP3595 Document number: DS36749 Rev. 1 - 2 1 of 23 www.diodes.com January 2014 © Diodes Incorporated Free Datasheet http://www.datasheetlist.com/ A Product Line of Diodes Incorporated AP3595 Typical Applications Circuit VIN 18 PHASE2 PHASE1 VOUT 17 11 10 12 4 2 PVCC CSP VCC BOOT1 HG1 13 14 CSN PSI IOFS VREF PHASE1 15 LG1 16 BOOT2 22 HG2 21 VOUT 1 24 REFIN RSET SS EAP VID RT/EN AP3595 PHASE2 20 FBRTN 9 8 23 3 LG2 19 FBRTN 7 FB COMP 6 5 GND AP3595 Document number: DS36749 Rev. 1 - 2 2 of 23 www.diodes.com January 2014 © Diodes Incorporated Free Datasheet http://www.datasheetlist.com/ A Product Line of Diodes Incorporated AP3595 Pin Descriptions Pin Number 1 2 3 4 5 Pin Name REFIN VREF RT/EN IOFS COMP Function External Reference Input. This is the input pin of external reference voltage. Connect a voltage divider from VREF to REFIN and FBRTN to set the reference voltage Output for Reference Voltage. This is the output pin of high precision 2V reference voltage. Bypass this pin with a 1F ceramic capacitor to FBRTN Operation Frequency Setting. Connecting a resistor between this pin and GND to set the operation frequency. Pull this pin to ground to shut down the AP3595 Current Balance Adjustment. Connect a resistor from this pin to VREF or GND to adjust the current sharing Error Amplifier Output. This is the output of the error amplifier (EA) and the non-inverting input of the PWM comparators. Use this pin in combination with the FB pin to compensate the voltage control feedback loop of the converter Feedback Voltage. This pin is the inverting input to the error amplifier. Use this pin in combination with the COMP pin to compensate the voltage control feedback loop of the converter Feedback Return. Connect this pin to the ground where the output voltage is to be regulated Non-inverting Input of Error Amplifier. Connect a resistor from this pin to SS pin to set the droop slope Soft Start Output. Connect a capacitor to FBRTN to set the soft start interval Negative Input for Current Sensing Amplifier Positive Input for Current Sensing Amplifier Power Saving Mode. Connect this pin to VREF for always two phase operation. Short this pin to ground for always single phase operation Bootstrap Supply for the Floating Upper Gate Driver of Channel 1. Conne.


AP3595 AP3595 SKY13526-485LF


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