Datasheet LTM4633 (Analog Devices) - 3

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
VIN Input DC Voltage CNTL_PWR Powered from Separate Supply l 2.375 16 V (5V to 16V Range) CNTL_PWR Powered Tied to VIN Supply l 4.7 16 V VOUT(RANGE) Output Voltage Range VOUT1, VOUT2 l 0.8 1.8 V Output Voltage Range VOUT3 l 0.8 5.5 V VOUT(DC) Output Voltage, Total Variation with Line CIN = 22µF × 3, COUT = 100µF Ceramic × 3, l 1.477 1.50 1.523 V and Load, VOUT1, VOUT2, VOUT3 RFB = 69k, MODE/PLLIN = 0V, VIN = 4.7V to 16V, IOUT = 0A to 10A (Note 4)
Input Specifications
VRUN RUN1, RUN 2, RUN 3 Pin ON Threshold VRUN Rising 1.15 1.3 1.4 V VRUN(HYS) RUN Pin Hysteresis 175 mV IQ(VIN) Input Supply Bias Current Each Channel VOUT = 1.5V, Burst Mode Operation 0.5 mA VOUT = 1.5V, Pulse-Skipping Mode 1 mA VOUT = 1.5V, Switching Continuous 45 mA Shutdown, RUN = 0V 50 µA IS(VIN) Input Supply Current Each Channel VOUT = 1.5V, IOUT = 10A 1.5 A
Output Specifications
IOUT(DC) Output Continuous Current Range Each VOUT = 1.5V (Note 4) 0 10 A Channel ∆VOUT(LINE) Line Regulation Accuracy per Channel VOUT = 1.5V, VIN from 2.375V to 16V l 0.015 0.02 %/V I VOUT OUT = 0A, CNTL_PWR = 12V ∆VOUT(LOAD) Load Regulation Accuracy per Channel VOUT = 1.5V, IOUT = 0A to 10A l 0.3 0.5 % (Note 4) VOUT VOUT(AC) Output Ripple Voltage per Channel IOUT = 0A, COUT = 100µF Ceramic × 3, 15 mV VOUT = 1.5V ∆VOUT(START) Turn-On Overshoot per Channel COUT = 100µF Ceramic × 3, VOUT = 1.5V, 20 mV IOUT = 0A tSTART Turn-On Time per Channel COUT = 100µF Ceramic × 3, No Load, 6 ms TK/SS = 0.01µF VOUTLS Peak Deviation for Dynamic Load per Load: 0% to 50% to 0% of Full Load, 100 mV Channel COUT = 100µF Ceramic × 3, VOUT = 1.5V Typical Bench Data tSETTLE Settling Time for Dynamic Load Step per Load: 0% to 50% to 0% of Full Load, 40 µs Channel COUT = 100µF Ceramic × 3, VOUT = 1.5V Typical Bench Data IOUT(PK) Output Current Limit per Channel VOUT = 1.5V 13 A
Control Specifications
VFB Voltage at VFB Pin per Channel IOUT = 0A, VOUT = 1.5V l 0.792 0.80 0.808 V IOUT = 0A, VOUT = 1.5V 0.794 0.80 0.806 V IFB Current at VFB Pin per Channel (Note 3) –10 –50 nA VOVL Feedback Overvoltage Lockout per l 0.84 0.86 0.88 V Channel ITK/SS Track Pin Soft-Start Pull-Up Current per TK/SS = 0V 1.1 1.5 1.9 µA Channel tON(MIN) Minimum On-Time (Note 3) 90 ns Max DC Maximum Duty Cycle 2.375V to 2V at 10A, 5.5V to 5V at 0A (Note 6) 100 % 4633f For more information www.linear.com/LTM4633 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Related Parts