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LTC3602 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3602 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 36 page  LTC3613 4 3613fa The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. SVIN = 15V, VFB = VOSNS+ – VOSNS–, unless otherwise noted. (Note 4) Note 1: Stresses beyond those listed under Absolute Maximum Ratings cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: TJ is calculated from the ambient temperature, TA, and power dissipation, PD, as follows: TJ = TA + (PD • 29°C/W) (θJA is simulated per JESD51-7 high effective thermal conductivity test board) θJC =1°C/W (θJC is simulated when heat sink is applied at the bottom of the package.) Note 3: The LTC3613 is tested in a feedback loop that adjusts VFB = VOSNS+ – VOSNS– to achieve a specified error amplifier output voltage (ITH). Note 4: The LTC3613 is tested under pulsed load conditions such that TJ ≈ TA. The LTC3613E is guaranteed to meet specifications from 0°C to 125°C junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LTC3613I is guaranteed over the full –40°C to 125°C operating junction temperature range. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal impedance and other environmental factors. Note 5: Delay times are measured using 50% levels. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Oscillator and Clock Synchronization fOSC Free Running Switching Frequency RT = 205k RT = 80.6k RT = 38.8k 175 450 900 200 500 1000 225 550 1100 kHz kHz kHz CLKIH Clock Input High Level Into Mode/PLLIN 2 V CLKIL Clock Input Low Level Into Mode/PLLIN 0.5 V Internal VCC Regulator and External VCC INTVCC Internal VCC Voltage 6V < VIN < 24V 5.1 5.3 5.55 V INTVCC(%) Internal VCC Load Regulation ICC = 0mA to 50mA –1 –2 % EXTVCC(TH) EXTVCC Switchover Voltage EXTVCC Rising 4.4 4.6 4.75 V EXTVCC(HYS) EXTVCC Switchover Hysteresis 200 mV ΔINTVCC EXTVCC Voltage Drop VEXTVCC = 5V. ICC = 50mA 200 mV PGOOD Output PGDOV PGOOD Upper Threshold VFB Rising (With Respect to Regulated Feedback Voltage VREG) 5 7.5 10 % PGDUV PGOOD Lower Threshold VFB Falling (With Respect to Regulated Feedback Voltage VREG) –10 –7.5 –5 % PGDHYS PGOOD Hysteresis VFB Returning 2 % VPGD(LO) PGOOD Low Voltage IPGOOD = 5mA 0.15 0.4 V tPGD(FALL) Delay from OV/UV Fault to PGOOD Falling (Note 5) 20 μs tPGD(RISE) Delay from OV/UV Recovery to PGOOD Rising (Note 5) 10 μs RDS(ON) RDS(ON) Top Switch On-Resistance Bottom Switch On-Resistance 7.5 5.5 mohm mohm ELECTRICAL CHARACTERISTICS |
Similar Part No. - LTC3602 |
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Similar Description - LTC3602 |
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