Datasheet LTM4602 (Analog Devices) - 3

LTM4602
The ELECTRICAL CHARACTERISTICS
l
denotes the specifi cations which apply over the –40°C to 85°C temperature range, otherwise specifi cations are at TA = 25°C, VIN = 12V. Per typical application (front page) confi guration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IS(VIN) Input Supply Current VIN = 12V, VOUT = 1.5V, IOUT = 6A 0.88 A VIN = 12V, VOUT = 3.3V, IOUT = 6A 1.80 A VIN = 5V, VOUT = 1.5V, IOUT = 6 A 2.08 A
Output Specifi cations
IOUTDC Output Continuous Current Range VIN = 12V, VOUT = 1.5V 0 6 A (See Output Current Derating Curves for Different VIN, VOUT and TA) ΔVOUT(LINE) Line Regulation Accuracy VOUT = 1.5V, IOUT = 0A, FCB = 0V, l 0.15 0.3 % V VIN = 4.5V to 20V OUT ΔVOUT(LOAD) Load Regulation Accuracy VOUT = 1.5V, IOUT = 0A to 6A, FCB = 0V, V VIN = 5V, VIN = 12V (Note 3) ±0.25 ±0.5 % OUT l ±0.15 ±1.0 % VOUT(AC) Output Ripple Voltage VIN = 12V, VOUT = 1.5V, IOUT = 0A, FCB = 0V 10 15 mVP-P fs Output Ripple Voltage Frequency VOUT = 1.5V, IOUT = 6A, FCB = 0V 850 kHz tSTART Turn-On Time VOUT = 1.5V, IOUT = 1A VIN = 12V 0.5 ms VIN = 5V 0.7 ms ΔVOUTLS Voltage Drop for Dynamic Load Step VOUT = 1.5V, Load Step: 0A/μs to 3A/μs 30 mV COUT = 22μF 6.3V, 330μF 4V POSCAP, See Table 2 tSETTLE Settling Time for Dynamic Load Step Load: 10% to 50% to 10% of Full Load 25 μs IOUTPK Output Current Limit Output Voltage in Foldback VIN = 12V, VOUT = 1.5V 9 A VIN = 5V, VOUT = 1.5V 9 A
Control Stage
VOSET Voltage at VOSET Pin IOUT = 0A, VOUT = 1.5V l 0.591 0.6 0.609 V VRUN/SS RUN ON/OFF Threshold 0.8 1.5 2 V IRUN(C)/SS Soft-Start Charging Current VRUN/SS = 0V –0.5 –1.2 –3 μA IRUN(D)/SS Soft-Start Discharging Current VRUN/SS = 4V 0.8 1.8 3 μA VIN – SVIN EXTVCC = 0V, FCB = 0V 100 mV IEXTVCC Current into EXTVCC Pin EXTVCC = 5V, FCB = 0V, VOUT = 1.5V, 16 mA IOUT = 0A RFBHI Resistor Between VOUT and VOSET Pins 100 kΩ VFCB Forced Continuous Threshold 0.57 0.6 0.63 V IFCB Forced Continuous Pin Current VFCB = 0.6V –1 –2 μA
PGOOD Output
ΔVOSETH PGOOD Upper Threshold VOSET Rising 7.5 10 12.5 % ΔVOSETL PGOOD Lower Threshold VOSET Falling –7.5 –10 –12.5 % ΔVOSET(HYS) PGOOD Hysteresis VOSET Returning 2 % VPGL PGOOD Low Voltage IPGOOD = 5mA 0.15 0.4 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 2:
The LTM4602E is guaranteed to meet performance specifi cations may cause permanent damage to the device. Exposure to any Absolute from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating Maximum Rating condition for extended periods may affect device temperature range are assured by design, characterization and correlation reliability and lifetime. with statistical process controls. The LTM4602I is guaranteed over the –40°C to 85°C temperature range.
Note 3:
Test assumes current derating versus temperature. 4602fa 3