LTM4613 查看數據表（PDF） - Linear Technology
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LTM4613 Datasheet PDF : 30 Pages
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LTM4613
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full internal
operating temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 24V, unless otherwise noted. Per Typical
Application (front page) configuration.
SYMBOL PARAMETER
CONDITIONS
VIN(DC)
Input DC Voltage
VOUT(DC)
Output Voltage, Total Variation
with Line and Load
Input Specifications
CIN = 10µF × 3, COUT = 47µF × 4; FCB = 0,
VIN = 24V to 36V, VOUT = 12V
VIN(UVLO)
IINRUSH(VIN)
Undervoltage Lockout Threshold
Input Inrush Current at Start-Up
IQ(VIN)
Input Supply Bias Current
IS(VIN)
Input Supply Current
VINTVCC
Internal VCC Voltage
Output Specifications
IOUT = 0A
IOUT = 0A; CIN = 10µF × 3, COUT = 47µF × 4; CSS = 22nF
VOUT = 12V
VIN = 24V
VIN = 36V
VIN = 36V, VOUT = 12V, Switching Continuous, IOUT = 0A
VIN = 24V, VOUT = 12V, Switching Continuous, IOUT = 0A
Shutdown, RUN = 0, VIN = 36V
VIN = 36V, VOUT = 12V, IOUT = 8A
VIN = 24V, VOUT = 12V, IOUT = 8A
VIN = 36V, RUN > 2V, IOUT = 0A
IOUT(DC)
∆VOUT(LINE)
VOUT
∆VOUT(LOAD)
VOUT
VIN(AC)
VOUT(AC)
fS
∆VOUT(START)
tSTART
∆VOUT(LS)
tSETTLE
IOUT(PK)
Output Continuous Current Range
Line Regulation Accuracy
Load Regulation Accuracy
Input Ripple Voltage
Output Ripple Voltage
Output Ripple Voltage Frequency
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic Load
Settling Time for Dynamic Load
Step
Output Current Limit
VIN = 24V, VOUT = 12V (Note 4)
VOUT = 12V, FCB = 0V, VIN = 24V to 36V,
IOUT = 0A
VOUT = 12V, FCB = 0V, IOUT = 0A to 8A (Note 4)
VIN = 36V
VIN = 24V
IOUT = 0A,
CIN = 1 × 10µF X5R Ceramic and 1 × 100µF Electrolytic,
3 × 10µF X5R Ceramic on VD Pins
VIN = 24V, VOUT = 12V (Note 5)
IOUT = 0A,
COUT = 1 × 10µF, 4 × 47µF X5R Ceramic
VIN = 24V, VOUT = 12V
VIN = 24V, VOUT = 12V, IOUT = 0A
COUT = 47µF × 4, VOUT = 12V, IOUT = 0A, CSS = 22nF
VIN = 36V
VIN = 24V
COUT = 47µF × 4, VOUT = 12V, IOUT = 0A, CSS = Open
VIN = 36V
VIN = 24V
Load: 0% to 50% to 0% of Full Load
COUT = 1 × 10µF, 3 × 47µF X5R Ceramic, 1 × 47µF POSCAP
VIN = 24V, VOUT = 12V
Load: 0% to 50% to 0% of Full Load
COUT = 1 × 10µF, 3 × 47µF X5R Ceramic, 1 × 47µF POSCAP
VIN = 24V, VOUT = 12V
COUT = 47µF × 4
VIN = 36V, VOUT = 12V
VIN = 24V, VOUT = 12V
MIN
l5
l 11.83
4.7
0
l
l
l
TYP
12.07
3.2
150
120
78
60
50
2.90
4.26
5
0.05
0.5
0.5
10
19
600
20
20
0.3
0.3
250
100
12
12
MAX
36
12.31
4.8
5.5
8
0.3
0.75
0.75
UNITS
V
V
V
mA
mA
mA
mA
µA
A
A
V
A
%
%
%
mVP-P
mVP-P
kHz
mV
mV
ms
ms
mV
µs
A
A
For more information www.linear.com/LTM4613
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