Datasheet LTM4633 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Triple 10A Step-Down DC/DC µModule Regulator |
| Pages / Page | 32 / 3 — elecTrical characTerisTics. The. denotes the specifications which apply … |
| File Format / Size | PDF / 526 Kb |
| Document Language | English |
elecTrical characTerisTics. The. denotes the specifications which apply over the specified internal
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Text Version of Document
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
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
