LTM4609V 查看數據表（PDF） - Linear Technology
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LTM4609V Datasheet PDF : 28 Pages
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LTM4609
Electrical Characteristics The l denotes the specifications which apply over the specified operating
temperature range (Note 2), otherwise specifications are at TA = 25°C, VIN = 12V, per typical application (front page) configuration.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP
MAX UNITS
Input Specifications
VIN(DC)
VIN(UVLO)
IQ(VIN)
Input DC Voltage
Undervoltage Lockout Threshold
Input Supply Bias Current
Normal
Standby
Shutdown Supply Current
VIN Falling (–40°C to 85°C)
VIN Falling (–55°C to 125°C)
VRUN = 0V, VSTBYMD > 2V
VRUN = 0V, VSTBYMD = Open
l 4.5
36
V
l
3.4
4
V
l
3.4
4.5
V
2.8
mA
1.6
mA
35
60
µA
Output Specifications
IOUTDC
Output Continuous Current Range VIN = 32V, VOUT = 12V
(Note 3)
VIN = 6V, VOUT = 12V
10
A
4
A
ΔVFB/VFB(NOM)
Line Regulation Accuracy
VIN = 4.5V to 36V, VCOMP = 1.2V (Note 4)
0.002
0.02
%/V
ΔVFB/VFB(LOAD)
Load Regulation Accuracy
Switch Section (Note 5)
M1 tr
Turn-On Time
M1 tf
Turn-Off Time
M3 tr
Turn-On Time
M3 tf
Turn-Off Time
M2, M4 tr
Turn-On Time
M2, M4 tf
Turn-Off Time
t1d
M1 Off to M2 On Delay
t2d
M2 Off to M1 On Delay
t3d
M3 Off to M4 On Delay
t4d
M4 Off to M3 On Delay
Mode Transition 1 M2 Off to M4 On Delay
Mode Transition 2 M4 Off to M2 On Delay
M1 RDS(ON)
Static Drain-to-Source
On-Resistance
M2 RDS(ON)
Static Drain-to-Source
On-Resistance
M3 RDS(ON)
Static Drain-to-Source
On-Resistance
M4 RDS(ON)
Static Drain-to-Source
On-Resistance
Oscillator and Phase-Locked Loop
fNOM
Nominal Frequency
fLOW
Lowest Frequency
VCOMP = 1.2V to 0.7V
VCOMP = 1.2V to 1.8V (Note 4)
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Drain to Source Voltage VDS = 12V,
Bias Current ISW = 10mA
Bias Current ISW = 3A
Bias Current ISW = 3A
Bias Current ISW = 3A
Bias Current ISW = 3A
VPLLFLTR = 1.2V
VPLLFLTR = 0V
l
0.15
0.5
%
l
–0.15 –0.5
%
50
ns
40
ns
25
ns
20
ns
20
ns
20
ns
50
ns
50
ns
50
ns
50
ns
220
ns
220
ns
10
mΩ
14
20
mΩ
14
20
mΩ
14
20
mΩ
260
300
330
kHz
170
200
220
kHz
4609ff
For more information www.linear.com/LTM4609
3
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