LTM4600IV(RevA) 查看數據表（PDF） - Linear Technology
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LTM4600IV Datasheet PDF : 24 Pages
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LTM4600
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the –40°C to 85°C
temperature range, otherwise specifications are at TA = 25°C, VIN = 12V. Per typical application (front page) configuration.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Output Specifications
IOUTDC
ΔVOUT/ΔVIN
ΔVOUT/ΔIOUT
VOUT(AC)
fs
tSTART
ΔVOUTLS
Output Continuous Current Range
VIN = 12V, VOUT = 1.5V
0
(See Output Current Derating Curves for
Different VIN, VOUT and TA)
Line Regulation Accuracy
VOUT = 1.5V, IOUT = 0A, FCB = 0V,
●
VIN = 4.5V to 20V
Load Regulation Accuracy
VOUT = 1.5V, IOUT = 0A to 10A, FCB = 0V
VIN = 5V
VIN = 12V (Note 3)
●
Output Ripple Voltage
VIN = 12V, VOUT = 1.5V, IOUT = 0A, FCB = 0V
Output Ripple Voltage Frequency
VOUT = 1.5V, IOUT = 5A, FCB = 0V
Turn-On Time
VOUT = 1.5V, IOUT = 10A
VIN = 12V
VIN = 5V
Voltage Drop for Dynamic Load Step
VOUT = 1.5V, Load Step: 0A/µs to 5A/µs
COUT = 3 • 22µF 6.3V, 470µF 4V Pos Cap,
See Table 2
10
A
0.15
0.3
%
±1
%
±1.5
%
10
15
mVP-P
800
kHz
0.5
ms
0.7
ms
36
mV
tSETTLE
IOUTPK
Control Stage
Settling Time for Dynamic Load Step
Output Current Limit
Load: 10% to 90% to 10% of Full Load
Output Voltage in Foldback
VIN = 12V, VOUT = 1.5V
VIN = 5V, VOUT = 1.5V
25
µs
14
A
14
A
VOSET
Voltage at VOSET Pin
IOUT = 0A, VOUT = 1.5V
● 0.591 0.6 0.609
V
0.594 0.6 0.606
V
VRUN/SS
IRUN(C)/SS
IRUN(D)/SS
VIN – SVIN
IEXTVCC
RFBHI
VFCB
IFCB
PGOOD Output
RUN ON/OFF Threshold
Soft-Start Charging Current
Soft-Start Discharging Current
Current into EXTVCC Pin
Resistor Between VOUT and FB Pins
Forced Continuous Threshold
Forced Continuous Pin Current
VRUN/SS = 0V
VRUN/SS = 4V
EXTVCC = 0V, FCB = 0V
EXTVCC = 5V, FCB = 0V, VOUT = 1.5V,
IOUT = 0A
VFCB = 0.6V
0.8
1.5
2
V
–0.5 –1.2
–3
µA
0.8
1.8
3
µA
100
mV
16
mA
100
kΩ
0.57
0.6
0.63
V
–1
–2
µA
ΔVOSETH
ΔVOSETL
ΔVOSET(HYS)
VPGL
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
VOSET Rising
VOSET Falling
VOSET Returning
IPGOOD = 5mA
7.5
10
12.5
%
–7.5 –10 –12.5
%
2
%
0.15
0.4
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTM4600E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTM4600I is guaranteed and tested
over the –40°C to 85°C temperature range.
Note 3: Test assumes current derating verses temperature.
4600fa
3
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