LTM4606(RevB) 查看數據表（PDF） - Linear Technology
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LTM4606 Datasheet PDF : 28 Pages
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LTM4606
Electrical Characteristics The l denotes the specifications which apply over the specified internal
operating temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 12V, unless otherwise noted. Per typical
application (front page) configuration, RFB = 40.2k.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
IQ(VIN)
Input Supply Bias Current
IS(VIN)
Input Supply Current
INTVCC
VIN = 12V, RUN > 2V
Output Specifications
VIN = 5V, VOUT = 1.5V, Switching Continuous
VIN = 12V, VOUT = 1.5V, Switching Continuous
Shutdown, RUN = 0, VIN = 12V
VIN = 12V, VOUT = 1.5V, IOUT = 6A
VIN = 5V, VOUT = 1.5V, IOUT = 6A
No Load
27
mA
25
mA
22
µA
0.96
A
2.18
A
4.7
5
5.3
V
IOUT(DC)
Output Continuous Current Range VIN = 12V, VOUT = 1.5V (Note 4)
0
DVOUT(LINE)/VOUT Line Regulation Accuracy
VOUT = 1.5V, FCB = 0V, VIN = 4.5V to 28V,
l
IOUT = 0A
DVOUT(LOAD)/VOUT Load Regulation Accuracy
VOUT = 1.5V, FCB = 0V, IOUT = 0A to 6A
VIN = 12V (Note 4)
l
VIN(AC)
Input Ripple Voltage
IOUT = 0A, CIN = 10µF X5R Ceramic x3 and
100µF Electrolytic
VIN = 5V, VOUT = 1.5V
VIN = 12V, VOUT = 1.5V
VOUT(AC)
Output Ripple Voltage
IOUT = 0A, COUT = 22µF X5R Ceramic x3 and
100µF X5R Ceramic
VIN = 5V, VOUT = 1.5V
VIN = 12V, VOUT = 1.5V
fS
Output Ripple Voltage Frequency IOUT = 5A, VIN = 12V, VOUT = 1.5V
DVOUT(START)
Turn-On Overshoot,
TRACK/SS = 10nF
COUT = 200µF, VOUT = 1.5V, IOUT = 0A
VIN = 12V
VIN = 5V
tSTART
Turn-On Time, TRACK/SS = Open
COUT = 200µF; VOUT = 1.5V, IOUT = 1A
Resistive Load
VIN = 5V
VIN = 12V
DVOUT(LS)
Peak Deviation for Dynamic Load
Load: 0% to 50% to 0% of Full Load
COUT = 22µF Ceramic, 470µF x2
VIN = 12V
VOUT = 1.5V
tSETTLE
Settling Time for Dynamic Load Step Load: 0% to 50% to 0% of Full Load,
VIN = 12V
VIN = 12V
IOUT(PK)
Output Current Limit
COUT = 200µF
VIN = 5V, VOUT = 1.5V
VIN = 12V, VOUT = 1.5V
Control Section
6
A
0.05
0.3
%
0.3
%
2
mVP-P
3
mVP-P
8
mVP-P
11
mVP-P
900
kHz
20
mV
20
mV
0.5
ms
0.5
ms
35
mV
25
µs
10
A
10
A
VFB
VRUN
ISS / TRACK
VFCB
IFCB
tON(MIN)
tOFF(MIN)
RPLLIN
Voltage at VFB Pin
RUN Pin On/Off Threshold
Soft-Start Charging Current
Forced Continuous Threshold
Forced Continuous Pin Current
Minimum On Time
Minimum Off Time
PLLIN Input Resistor
IOUT = 0A, VOUT = 1.5V
VSS/TRACK = 0V
VFCB = 0V
(Note 3)
(Note 3)
l 0.591 0.6 0.609
V
1
1.5
1.9
V
–1
–1.5
–2
µA
0.57
0.6
0.63
V
–1
–2
µA
50
100
ns
250
400
ns
50
kW
4606fb
3
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