Datasheet LTM4636-1 (Analog Devices) - 3

LTM4636-1 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 in Figure 20. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input DC Voltage VIN ≤ 5.5V, Tie VIN and PVCC Together, Tie RUNP to GND l 4.70 15 V VOUT VOUT Range l 0.6 3.3 V VOUT(DC) DC Output Voltage, Total CIN = 22µF × 5 l 1.4805 1.50 1.5195 V Variation with Line and Load COUT = 100µF × 4 Ceramic, 470µF POSCAP × 3 RFB = 40.2k, MODE_PLLIN = GND VIN = 4.70V to 15V, IOUT = 0A to 40A (Note 4)
Input Specifications
VRUNC RUNC Pin On Threshold VRUNC Rising 1.1 1.22 1.35 V VRUNCHYS RUNC Pin On Hysteresis 150 mV VRUNP RUNP Pin On Threshold RUNP Pin Rising l 0.7 0.8 0.9 V RUNP HYS RUNP Pin Hysteresis 60 mV HIZREG HIZREG Input Threshold VIN = 12V, RUNC = 5V, RUNP = VIN, VOUT = 1.5V 2.3 V HIZREG HYS HIZREG Hysteresis VIN = 12V, RUNC = 5V, RUNP = VIN, VOUT = 1.5V 0.8 V IQ(VIN) Input Supply Bias Current VIN = 12V, VOUT = 1.5V, Burst Mode Operation, IOUT = 0.1A 16 mA VIN = 12V, VOUT = 1.5V, Pulse-Skipping Mode, IOUT = 0.1A 23 mA VIN = 12V, VOUT = 1.5V, Switching Continuous, IOUT = 0.1A 105 mA Shutdown, RUN = 0, VIN = 12V 30 µA IS(VIN) Input Supply Current VIN = 5V, VOUT = 1.5V, IOUT = 40A 14.7 A VIN = 12V, VOUT = 1.5V, IOUT = 40A 5.66 A
Output Specifications
IOUT(DC) Output Continuous Current VIN = 12V, VOUT = 1.5V (Note 4) 0 40 A Range ∆VOUT (Line) Line Regulation Accuracy VOUT = 1.5V, VIN from 4.70V to 15V l 0.02 0.06 %/V VOUT IOUT = 0A ∆VOUT (Load) Load Regulation Accuracy VOUT = 1.5V, IOUT = 0A to 40A, VIN = 12V (Note 4) l 0.2 0.35 % VOUT VOUT(AC) Output Ripple Voltage IOUT = 0A, COUT = 100µF × 3 Ceramic, 470µF × 3 POSCAP, 15 mVP-P VIN = 12V, VOUT = 1.5V ∆VOUT(START) Turn-On Overshoot COUT = 100µF × 4 Ceramic, 470µF × 3 POSCAP, 5 mV VOUT = 1.5V, IOUT = 0A, VIN = 12V, TRACK/SS = 0.1µF tSTART Turn-On Time COUT = 100µF × 3 Ceramic, 470µF × 3 POSCAP, 750 µs No Load, TRACK/SS = 0.001µF, VIN = 12V ∆VOUTLS Peak Deviation for Dynamic Load: 0% to 50% to 0% of Full Load 45 mV Load COUT = 100µF × 4 Ceramic, 470µF × 3 POSCAP, VIN = 12V, VOUT = 1.5V, CFF = 22pF tSETTLE Settling Time for Dynamic Load: 0% to 50% to 0% of Full Load, VIN = 5V, 25 µs Load Step COUT = 100µF × 4 Ceramic, 470µF × 3 POSCAP, VIN = 12V, VOUT = 1.5V, CFF = 22pF IOUTPK Output Current Limit VIN = 12V, VOUT = 1.5V 54 A VIN = 5V, VOUT = 1.5V 54 A
Control Section
VFB Voltage at VFB Pin IOUT = 0A, VOUT = 1.5V l 0.594 0.600 0.606 V IFB Current at VFB Pin (Note 6) –30 –100 nA VOVL Feedback Overvoltage Measure at VOUTS1 l 5 7.5 10 % Lockout ITRACK/SS Track Pin Soft-Start Pull-Up TRACK/SS = 0V, Default 750µs Turn on with TRACK/SS 1.1 1.35 1.6 µA Current Tied to INTVCC tON(MIN) Minimum On-Time (Note 3) 100 ns RFBHI Resistor Between VOUTS1 and 4.99 kΩ VFB Pins 46361fa For more information www.linear.com/LTM4636-1 3