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LTC3733-1 Datasheet(PDF) 4 Page - Linear Technology |
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LTC3733-1 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 32 page  4 LTC3733/LTC3733-1 3733f ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = VRUN = VSS = 5V unless otherwise noted. Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: TJ is calculated from the ambient temperature TA and power dissipation PD according to the following formula: LTC3733CG: TJ = TA + (PD × 95°C/W) LTC3733CUHF-1: TJ = TA + (PD × 34°C/W) Note 3: The IC is tested in a feedback loop that includes the differential amplifier in a unity-gain configuration loaded with 100 µA to ground driving the VID DAC into the error amplifier and servoing the resultant voltage to the midrange point for the error amplifier (VITH = 1.2V). Note 4: Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. See Applications Information. Note 5: The minimum on-time condition corresponds to an inductor peak- to-peak ripple current of ≥40% of IMAX (see minimum on-time considerations in the Applications Information Section). Note 6: ATTENERR specification is in addition to the output voltage accuracy specified at VID code 10011. Note 7: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125 °Cwhenovertemperatureprotectionisactive.Continuousoperation above the specified maximum operating junction temperature may impair device reliability. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Oscillator and Phase-Locked Loop fNOM Nominal Frequency VPLLFLTR = 1.2V 310 350 400 kHz fLOW Lowest Frequency VPLLFLTR = 0V 190 210 250 kHz fHIGH Highest Frequency VPLLFLTR = 2.4V 470 530 620 kHz RPLLTH PLLIN Input Threshold LTC3733-1 Only 1 V RPLL IN PLLIN Input Resistance LTC3733-1 Only 50 k Ω IPLL LPF Phase Detector Output Current LTC3733-1 Only Sinking Capability fPLLIN < fOSC 20 µA Sourcing Capability fPLLIN > fOSC 20 µA RRELPHS Controller 2-Controller 1 Phase 120 Deg Controller 3-Controller 1 Phase 240 Deg No_CPU Detection tNOCPU No-CPU Shutdown Latency After All VID Bits = “1” 0.5 1 µs Differential Amplifier AV Differential Gain 0.995 1.000 1.005 V/V VOS Input Offset Voltage IN+ = IN– = 1.2V, IOUT = 1mA, 0.5 5 mV Input Referred; Gain = 1 CM Common Mode Input Voltage Range 0 5 V CMRR Common Mode Rejection Ratio 0V < IN+ = IN– < 5V, IOUT = 1mA, Input Referred 50 70 dB ICL Output Current 10 40 mA GBP Gain Bandwidth Product 2 MHz SR Slew Rate RL = 2k 5 V/ µs VO(MAX) Maximum High Output Voltage IOUT = 1mA VCC – 1.2 VCC – 0.8 V RIN Input Resistance Measured at IN+ Pin 80 k Ω |
Similar Part No. - LTC3733-1_15 |
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Similar Description - LTC3733-1_15 |
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