LTM4616 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTM4616' PDF : 30 Pages View PDF
LTM4616
Electrical Characteristics The l denotes the specifications which apply over the specified internal
operating temperature range (Note 2). TA = 25°C, VIN = 5V unless otherwise noted. Per the typical application in Figure 18. Specified
as each channel (Note 3).
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN1(DC), VIN2(DC)
Input DC Voltage
l 2.7
5.5
V
VOUT1(DC), VOUT2(DC) Output Voltage, Total Variation CIN = 10µF × 1, COUT = 100µF Ceramic,
with Line and Load
100µF POSCAP, RFB = 6.65k, MODE = 0V
1.472 1.49 1.508
V
VIN = 2.7V to 5.5V,
IOUT = IOUT(DC)MIN to IOUT(DC)MAX (Note 4)
l 1.464 1.49 1.516
V
Input Specifications
VIN1(UVLO),
VIN2(UVLO)
Undervoltage Lockout Threshold SVIN Rising
SVIN Falling
2.05
2.2
2.35
V
1.85
2.0
2.15
V
IQ(VIN1, VIN2)
Input Supply Bias Current
VIN = 3.3V, VOUT = 1.5V, No Switching, MODE = VIN
400
µA
VIN = 3.3V, VOUT = 1.5V, No Switching, MODE = 0V
1.15
mA
VIN = 3.3V, VOUT = 1.5V, Switching Continuous
55
mA
VIN = 5V, VOUT = 1.5V, No Switching, MODE = VIN
VIN = 5V, VOUT = 1.5V, No Switching, MODE = 0V
VIN = 5V, VOUT = 1.5V, Switching Continuous
450
µA
1.3
mA
75
mA
Shutdown, RUN = 0, VIN = 5V
1
µA
IS(VIN1, VIN2)
Input Supply Current
VIN = 3.3V, VOUT = 1.5V, IOUT = 8A
VIN = 5V, VOUT = 1.5V, IOUT = 8A
4.5
A
2.93
A
Output Specifications
IOUT1(DC), IOUT2(DC)
Output Continuous Current Range VOUT = 1.5V (Note 4)
VIN = 3.3V, 5.5V
VIN = 2.7V
0
8
A
0
5
A
ΔVOUT1(LINE)/VOUT1 Line Regulation Accuracy
ΔVOUT2(LINE)/VOUT2
VOUT = 1.5V, VIN from 2.7V to 5.5V, IOUT = 0A
l
0.1
0.25
%/V
ΔVOUT1(LOAD)/VOUT1 Load Regulation Accuracy
ΔVOUT2(LOAD)/VOUT2
VOUT = 1.5V (Note 4)
VIN = 3.3V, 5.5V, ILOAD = 0A to 8A
VIN = 2.7V, ILOAD = 0A to 5A
l
0.3
0.5
%
l
0.3
0.5
%
VOUT1(AC), VOUT2(AC) Output Ripple Voltage
IOUT = 0A, COUT = 100µF X5R Ceramic, VIN = 5V,
VOUT = 1.5V
10
mVP-P
fS1, fS2
Switching Frequency
IOUT = 8A, VIN = 5V, VOUT = 1.5V
1.25
1.5
1.75
MHz
fSYNC1, fSYNC2
SYNC Capture Range
0.75
2.25
MHz
ΔVOUT1(START),
ΔVOUT2(START)
tSTART1, tSTART2
ΔVOUT1(LS),
ΔVOUT2(LS)
tSETTLE1, tSETTLE2
IOUT1(PK), IOUT2(PK)
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic Load
Settling Time for Dynamic Load
Step
Output Current Limit
COUT = 100µF, VOUT = 1.5V, IOUT = 0A
VIN = 3.3V
VIN = 5V
COUT = 100µF, VOUT = 1.5V, VIN = 5V,
IOUT = 1A Resistive Load, Track = VIN
Load: 0% to 50% to 0% of Full Load,
COUT = 100µF Ceramic x2, 470µF POSCAP,
VIN = 5V, VOUT = 1.5V
Load: 0% to 50% to 0% of Full Load, VIN = 5V,
VOUT = 1.5V, COUT = 100µF
COUT = 100µF
VIN = 2.7V, VOUT = 1.5V
VIN = 3.3V, VOUT = 1.5V
VIN = 5V, VOUT = 1.5V
10
mV
10
mV
100
µs
20
mV
10
µs
8
A
11
A
13
A
4616ff
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