Datasheet LTM4615 (Analog Devices) - 3

LTM4615
elecTrical characTerisTics The
l
denotes the specifications which apply over the full internal operating temperature range (Note 2), otherwise specifications are at TA = 25°C, VIN = 5V, LDO_IN = 1.2V unless otherwise noted. Per Typical Application Figure 12. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Switching Regulator Section: per Channel
VIN(DC) Input DC Voltage Range l 2.375 5.5 V VOUT(DC) Output DC Voltage Range l 0.8 5.0 V VOUT(DC) Output Voltage CIN = 22µF, COUT = 100µF, RFB = 5.76k, VIN = 2.375V to 5.5V, IOUT = 0A to 4A (Note 6) 0°C ≤ TJ ≤ 125°C 1.460 1.49 1.512 V l 1.45 1.49 1.512 V VIN(UVLO) Undervoltage Lockout Threshold IOUT = 0A 1.6 2 2.3 V IINRUSH(VIN) Input Inrush Current at Start-Up IOUT = 0A, CIN = 22µF, COUT = 100µF, VOUT = 1.5V, VIN = 5.5V 0.35 A IQ(VIN) Input Supply Bias Current VIN = 2.375V, VOUT = 1.5V, Switching Continuous 28 mA VIN = 5.5V, VOUT = 1.5V, Switching Continuous 45 mA Shutdown, RUN = 0, VIN = 5V 7 12 µA IS(VIN) Input Supply Current VIN = 2.375V, VOUT = 1.5V, IOUT = 4A 3.2 A VIN = 5.5V, VOUT = 1.5V, IOUT = 4A 1.48 A IOUT(DC) Output Continuous Current Range VIN = 5.5V, VOUT = 1.5V (Note 6) 0 4 A ∆VOUT(LOAD + LINE) Load and Line Regulation Accuracy VOUT = 1.5V, 0A to 4A (Note 6) V V ±1.0 ±1.30 % OUT IN = 2.375V to 5.5V l ±1.3 ±1.6 % VOUT(AC) Output Ripple Voltage IOUT = 0A, COUT = 100µF VIN = 5V, VOUT = 1.5V 12 mVP-P fs Output Ripple Voltage Frequency IOUT = 4A, VIN = 5V, VOUT = 1.5V 1.25 MHz ∆VOUT(START) Turn-On Overshoot COUT = 100µF, VOUT = 1.5V, RUN/SS = 10nF, IOUT = 0A VIN = 3.3V 20 mV VIN = 5V 20 mV tSTART Turn-On Time COUT = 100µF, VOUT = 1.5V, IOUT = 1A Resistive Load, TRACK = VIN and RUN/SS = Float VIN = 5V 0.5 ms ∆VOUT(LS) Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load, 25 mV COUT = 100µF, VIN = 5V, VOUT = 1.5V tSETTLE Settling Time for Dynamic Load Load: 0% to 50% to 0% of Full Load, 10 µs Step VIN = 5V, VOUT = 1.5V IOUT(PK) Output Current Limit COUT = 100µF, VIN = 5V, VOUT = 1.5V 8 A VFB Voltage at FB Pin IOUT = 0A, VOUT = 1.5V 0.790 0.8 0.807 V l 0.786 0.8 0.809 V IFB 0.2 µA VRUN RUN Pin On/Off Threshold 0.6 0.75 0.9 V ITRACK TRACK Pin Current 0.2 µA VTRACK(OFFSET) Offset Voltage TRACK = 0.4V 30 mV VTRACK(RANGE) Tracking Input Range 0 0.8 V RFBHI Resistor Between VOUT and FB Pins 4.96 4.99 5.02 kΩ ∆VPGOOD PGOOD Range ±7.5 % RPGOOD PGOOD Resistance Open-Drain Pull-Down 90 150 Ω 4615fb For more information www.linear.com/LTM4615 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photograph Related Parts