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LTM4633 Arkusz danych(PDF) 4 Page - Linear Technology |
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LTM4633 Arkusz danych(HTML) 4 Page - Linear Technology |
4 / 32 page LTM4633 4 4633f For more information www.linear.com/LTM4633 elecTrical characTerisTics The l denotes the specifications which apply over the specified internal operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 12V, per the typical application for each regulator channel. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS RFBHI Resistor Between VOUT and VFB Pins 60 60.4 60.8 kΩ VPGOOD PGOOD Trip Level PGOOD12 PGOOD3 VFB With Respect to Set Output VFB Ramping Negative VFB Ramping Positive –7.5 7.5 % % VPGL PGOOD Voltage Low IPGOOD = 2mA 0.1 0.3 V INTVCC Linear Regulator VINTVCC Internal VCC Voltage Float MODE/PLLIN 6V < VIN < 16V 4.8 5 5.2 V VINTVCC Load Reg INTVCC Load Regulation ICC = 0mA to 50mA 0.5 % VEXTVCC EXTVCC Switchover Voltage EXTVCC Ramping Positive l 4.5 4.7 V VLDO EXT EXTVCC Voltage Drop ICC = 20mA, VEXTVCC = 5V 30 75 mV VLDOHYS EXTVCC Hysteresis 200 mV Oscillator and Phase-Locked Loop fSYNC SYNC Capture Range Clock Input Duty Cycle = 50% 600 750 kHz fS Switching Frequency VFREQ/PLLLPF = INTVCC 700 750 800 kHz RMODE/PLLIN MODE/PLLIN Input Resistance 250 kΩ VIH(MODE/PLLIN) Clock Input Level High 2.0 V VIL(MODE/PLLIN) Clock Input Level Low 0.8 V Clock Phase VOUT2 to VOUT1 Phase VOUT3 to VOUT2 Phase VOUT1 to VOUT3 Phase VFREQ/PLLLPF = 1.2V (Note 3) 120 120 120 Deg Deg Deg VTEMP1,2 Temperature Diode Forward Voltage ITEMP = 100µA at 25°C 0.598 V TC VTEMP Temperature Coefficient –2.0 mV/°C Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTM4633 is tested under pulsed load conditions such that TJ ≈ TA. The LTM4633E is guaranteed to meet performance specifications over the 0°C to 125°C internal operating temperature range. Specifications over the –40°C to 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM4633I is guaranteed to meet specifications over the –40°C to 125°C internal operating temperature range. The LTM4633MP is guaranteed and tested to meet specifications over the –55°C to 125°C internal operating 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 resistance and other environmental factors. Note 3: 100% tested at wafer level. Note 4: See output current derating curves for different VIN, VOUT and TA. Note 5: Guaranteed by design. Note 6: High duty designs need to be validated based on maximum temperature rise and derating in ambient conditions. |
Podobny numer części - LTM4633 |
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Podobny opis - LTM4633 |
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