EL7464CRE-T13 ELANTEC [Elantec Semiconductor], EL7464CRE-T13 Datasheet
EL7464CRE-T13
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EL7464CRE-T13 Summary of contents
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... EL7564CRE-T7 28-Pin HTSSOP 7” MDP0048 EL7464CRE-T13 28-Pin HTSSOP 13” MDP0048 Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation. © ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator Absolute Maximum Ratings Supply Voltage between and GND Voltage LX Input Voltage V Voltage HI Important Note: All parameters having Min/Max specifications are guaranteed. Typ values are ...
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Closed Loop AC Electrical Characteristics 5V 25° 1.2nF, unless otherwise specified OSC Parameter Description F Oscillator Initial Accuracy OSC t Minimum Oscillator Sync Width SYNC M ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator Pin Descriptions Pin Number Pin Name 1 VREF Bandgap reference bypass capacitor; typically 0.1µF to SGND 2 SGND Control circuit negative supply or signal ground 3 COSC Oscillator timing capacitor (see performance curves) ...
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Typical Performance Curves (20-Pin SO Package) *Note: The 28-Pin HTSSOP Package Offers Improved Performance *Efficiency =5V 100 =2. =1. 0.5 1 1.5 ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator Typical Performance Curves *Note: The 28-Pin HTSSOP Package Offers Improved Performance Oscillator Frequency vs Temperature 360 350 340 I =4A O 330 320 310 I =0A O 300 290 280 -40 -20 0 ...
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Typical Performance Curves Transient Response V =5V, V =3.3V, I =0.2A- Power-Down V =5V, V =3.3V Shut-Down V =5V, V =3.3V, I =4A IN ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator Block Diagram VTJ Junction Temperature 2.2nF Controller Supply 22 VDD 0.22µF EN STP Power Tracking STN SGND FB 0.1µF 390pF VREF COSC Voltage VDRV Oscillator Reference VHI VIN Power FET PWM Drivers Controller ...
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Applications Information Circuit Description General The EL7564C is a fixed frequency, current mode con- trolled DC:DC converter with integrated N-channel power MOSFETs and a high precision reference. The device incorporates all the active circuitry required to implement a cost effective, ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator high-side switch remains on until all four comparator inputs have summed to zero, at which time the high-side switch is turned off and the low-side switch is turned on. However, the maximum on-duty ...
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T (°C) can be deducted from the J following relation: 1.2 VTJ – ----------------------- - 0.00384 Where VTJ is the voltage at VTJ pin in volts. Power Good and Power On Reset During ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator 2. Offset Tracking The intended start-up sequence is shown in Figure 3a. In this configuration, V will not start until V C preset value of ------------------- - ...
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The second way of offset tracking is to use the EN and Power Good pins, as shown in Figure 4. In this configu- ration, V does not have to be larger than ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator 3. External Soft Start An external soft start can be combined with auxilliary supply tracking to provide desired soft start other than internally preset soft start (Figure 5). The appropriate start-up time is: ...
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Start-up Delay A capacitor can be added to the EN pin to delay the con- verter start-up (Figure 6) by utilizing the pull-up current. The delay time is approximately 1200 ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator Thermal Management The EL7564CM utilizes “fused lead” packaging tech- nology in conjunction with the system board layout to achieve a lower thermal resistance than typically found in standard SO20 packages. By fusing (or ...
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Package Outline Drawing (20-Pin SO Package) NOTE: The package drawing shown here may not be the latest version. For the latest revision, please refer to the Elantec website at http://www.elantec.com/pages/package_outline.html Monolithic 4 Amp DC:DC Step-down Regulator 17 EL7564C ...
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EL7564C Monolithic 4 Amp DC:DC Step-down Regulator General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir- cuitry or specifications contained herein ...