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LTM4615EVPBF 数据表(PDF) 9 Page - Linear Technology |
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LTM4615EVPBF 数据表(HTML) 9 Page - Linear Technology |
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9 / 24 page  LTM4615 9 4615f SIMPLIFIED BLOCK DIAGRAM VIN 2.375V TO 5.5V CSS 1000pF CSSEXT 5.76k RFB 5.76k TRACK SUPPLY 4.99k C2 470pF 4.7μF 6.3V 4.7μF 6.3V 22μF 6.3V 3 VOUT 1.5V 4A M1 L M2 RSS 1M PGOOD RUN/SS TRACK COMP FB SW VOUT VIN GND 4615 F01a R1 4.99k CONTROL, DRIVE POWER FETS INTERNAL COMP 22μF 6.3V + – GND3 LDO_RHI 4.99k GND3 GND3 GND PGOOD3 4615 F01b FB3 LDO_OUT BOOST3 EN3 LDO_IN 0.4V 4.7μF 6.3V VIN 1.14V TO 3.5V GND3 1V 4.7μF 6.3V GND3 4.7μF CONTROL ENABLE 10k RFBLDO 3.32k VOUT 1V 1.5A 10μF 5V BOOST POWER GOOD 10μF Figure 1. Simplified LTM4615 Block Diagram of Each Switching Regulator Channel and the VLDO DECOUPLING REQUIREMENTS T A = 25°C. Use Figure 1 configuration for each channel. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS CIN External Input Capacitor Requirement (VIN = 2.375V to 5.5V, VOUT = 1.5V) IOUT = 4A 22 μF COUT External Output Capacitor Requirement (VIN = 2.375V to 5.5V, VOUT = 1.5V) IOUT = 4A 66 100 μF LDO_IN LDO Input Capacitance IOUT = 1A 4.7 10 μF LDO_OUT LDO Output Capacitance IOUT = 1A 10 μF VLDO Block Diagram Switching Regulator Block Diagram |
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