DICE/DWF SPECIFICATION LTC1629-PG Polyphase, High Efficiency, Synchronous Step-Down Switching Regulator
LTC Finished Part Number LTC1629-PG Order DICE CANDIDATE Part Number Below LTC1629-PG DICE LTC1629-PG DWF
RUN/SS SENSE1+ SENSE1 EAIN PLLFLTR PLLIN PHASMD ITH SGND VDIFFOUT VOS VOS+ SENSE2 SENSE2+ PGOOD BOOST2 BG2 PGND INTVCC EXTVCC BG1 VIN SW1 TG1 CLKOUT
SYMBOL VEAIN VSENSEMAX IINEAIN VLOADREG PARAMETER Regulated Feedback Voltage Maximum Current Sense Threshold Feedback Current Output Voltage Load Regulation Main Control Loop
CONDITIONS (Note 1); ITH Voltage = 5V; (Note 1) (Note 1) Measured in Servo Loop; ITH Voltage = 0.7V Measured in Servo Loop; ITH Voltage = 2V VIN to 30V (Note 1) Measured at VEAIN VIN Ramping Down (Note 4); VRUN/SS = 0V VRUN/SS = 1.9V
Reference Voltage Line Regulation Output Overvoltage Threshold Undervoltage Lockout Input DC Supply Current Shutdown Soft-Start Charge Current
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SYMBOL VRUN/SS VRUN/SSLO ISCL ISDLDO ISENSE DFMAX 2 tf VINTVCC VLDO INT VLDO EXT VEXTVCC fNOM fLOW fHIGH RRELPHS CLKOUT PARAMETER RUN/SS Pin ON Threshold RUN/SS Pin Latchoff Arming RUN/SS Discharge Current Shutdown Latch Disable Current Total Sense Pins Source Current Maximum Duty Factor Top Gate Transition Time: Rise Time Fall Time Bottom Gate Transition Time: Rise Time Fall Time Internal VCC Voltage INTVCC Load Regulation EXTVCC Voltage Drop EXTVCC Switchover Voltage Nominal Frequency Lowest Frequency Highest Frequency Controller 2-Controller 1 Phase (Relative to Controller 1)
CONDITIONS VRUN/SS Rising VRUN/SS Rising from 3V Soft Short Condition VEAIN = 0.5V; VRUN/SS = 4.5V VEAIN = 0.5V Each Channel; 0V In Dropout CLOAD = 3300pF CLOAD = 3300pF CLOAD = 3300pF CLOAD 6V < VIN < 30V; VEXTVCC = 4V ICC to 20mA; VEXTVCC = 4V ICC = 20mA; VEXTVCC = 5V; ICC = 20mA, EXTVCC Ramping Positive VPLLFLTR = 1.2V VPLLFLTR = 0V VPLLFLTR 2.4V VPHASMD = 0V, Open VPHASMD = 5V VPHASMD = 0V VPHASMD = Open VPHASMD = 5V
Clock High Output Voltage Clock Low Output Voltage Gain Common Mode Rejection Ratio PGOOD Voltage Low PGOOD Leakage Current PGOOD Trip Level, Either Controller Differential Amp Mode Differential Amp Mode; 0V < VCM < 5V IPGOOD = 2mA VPGOOD = 5V VEAIN with Respect to Set Output Voltage VEAIN Ramping Negative VEAIN Ramping Positive
Note 1: The LTC1629-PG is tested in a feedback loop that servos VITH to a specified voltage and measures the resultant VEAIN. Wafer level testing is performed per the indicated specifications for dice. Considerable differences in performance can often be observed for dice versus packaged units due to the influences of packaging and assembly on certain devices and/or parameters. Please consult factory for more information on dice performance and lot qualifications via lot sampling test procedures. Dice data sheet subject to change. Please consult factory for current revision in production.