LTM4611 データシートの表示（PDF） - Linear Technology
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LTM4611 Datasheet PDF : 28 Pages
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LTM4611
Electrical Characteristics The l denotes the specifications which apply over the full internal operating
junction temperature range, otherwise specifications are at TA = 25°C, VIN = 3.3V, per the typical application in Figure 21.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Specifications
VIN
VRUN
VRUNHYS
VRUN(FLOAT)
IRUN(UP,1V)
Input DC Voltage
RUN Pin On Threshold
RUN Pin On Hysteresis
RUN Pin Voltage when Floating
RUN Pin Pull-Up Current
(RUN = 1V)
VRUN Rising
l 1.5
5.5
V
l 1.1 1.22 1.35
V
80
mV
3.4 3.65
4
V
1.1
µA
IRUN(UP,1.5V)
RUN Pin Pull-Up Current
(RUN = 1.5V)
10
µA
IRUN(DOWN,5V)
RUN Pin Pull-Down Current
(RUN = 5V)
1
nA
IQ
Input Supply Bias Current
VOUT = 1.5V, Burst Mode Operation, IOUT = 0.1A
VOUT = 1.5V, Pulse-Skipping Mode, IOUT = 0.1A
VOUT = 1.5V, Switching Continuous, IOUT = 0.1A
Shutdown, RUN = 0V
70
mA
140
mA
145
mA
1.1
mA
IS(VIN)
Input Supply Current
Output Specifications
VIN = 2.5V, VOUT = 1.5V, IOUT = 15A
VIN = 3.3V, VOUT = 1.5V, IOUT = 15A
VIN = 5V, VOUT = 1.5V, IOUT = 15A
VIN = 1.5V, VOUT = 0.8V, IOUT = 15A
10.4
A
7.9
A
5.3
A
10.2
A
VOUT(DC)
Output Voltage, Total Variation Utilizing DIFF_AMP, RFB = Not Used, VIN = 1.5V to
0.785 0.797 0.809
V
with Line and Load
5.5V, IOUT = 0A to 15A (Note 4), RFB Electrically l 0.781 0.797 0.813
V
Floating, MODE_PLLIN = GND
VOUT(RANGE)
Utilizing DIFF_AMP
Not Utilizing DIFF_AMP
(Example See Figure 21)
(Example See Figure 20)
3.7
V
5.4
V
IOUT(DC)
∆VOUT (Line)
VOUT
∆VOUT (Load)
VOUT
VOUT(AC)
∆VOUT(START)
tSTART
∆VOUTLS
tSETTLE
IOUT(PK)
Output Continuous Current Range VOUT = VFB (Note 4)
Line Regulation Accuracy
VOUT = VFB, VIN from 1.5V to 5.5V, IOUT = 0A
Load Regulation Accuracy
VOUT = 1.5V, IOUT = 0A to 15A, VIN = 3.3V
(Note 4)
Output Ripple Voltage
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic Load
Settling Time for Dynamic Load
Step
Output Current Limit
IOUT = 0A, COUT = 100µF ×4 X5R Ceramic,
VIN = 3.3V, VOUT = 1.5V
COUT = 100µF ×4 X5R Ceramic, VOUT = 1.5V,
IOUT = 0A, VIN = 3.3V, CSS = 1nF
COUT = 100µF ×4 X5R Ceramic, No Load,
CSS = 1nF, VIN = 3.3V, VOUT = 1.5V
Load: 0% to 50% to 0% of Full Load
VIN = 3.3V, VOUT = 1.5V, COUT = 100µF ×4
X5R Ceramic, CFF = 100pF
Load: 0% to 50% to 0% of Full Load
VIN = 3.3V, VOUT = 1.5V, COUT = 100µF ×4
X5R Ceramic, CFF = 100pF
VIN = 5V, VOUT = 1.5V
VIN = 3.3V, VOUT = 1.5V
0
l
15
A
0.3
%
l
0.2
0.5
%
8
mVP-P
5
mV
500
µs
60
mV
40
µs
30
A
30
A
4611f
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