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LTM4603/LTM4603-1
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the –40°C to 85°C
operating temperature range (Note 2), otherwise specifications are at T A = 25°C, V IN = 12V, per typical application (front page)
configuration.
SYMBOL
R IN
PARAMETER
Input Resistance
CONDITIONS
+ to GND
V OSNS
MIN
TYP
20
MAX
UNITS
k W
CMRR
Common Mode Rejection Ratio
100
dB
Control Stage
V FB
V RUN
I TRACK/SS
t ON(MIN)
t OFF(MIN)
Error Amplifier Input Voltage
Accuracy
RUN Pin On/Off Threshold
Soft-Start Charging Current
Minimum On Time
Minimum Off Time
I OUT = 0A, V OUT = 1.5V
V TRACK/SS = 0V
(Note 4)
(Note 4)
l
0.594
1
–1
0.6
1.5
–1.5
50
250
0.606
1.9
–2
100
400
V
V
μA
ns
ns
R PLLIN
PLLIN Input Resistance
50
k W
I DRVCC
R FBHI
V MPGM
V MARG0 , V MARG1
Current into DRV CC Pin
Resistor Between V OUT_LCL and V FB
Margin Reference Voltage
MARG0, MARG1 Voltage Thresholds
V OUT = 1.5V, I OUT = 1A, DRV CC = 5V
60.098
20
60.4
1.18
1.4
27
60.702
mA
k W
V
V
PGOOD Output
Δ V FBH
Δ V FBL
Δ V FB(HYS)
V PGL
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
V FB Rising
V FB Falling
V FB Returning (Note 4)
I PGOOD = 5mA
7
–7
10
–10
1.5
0.15
13
–13
3
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 LTM4603/LTM4603-1 is tested under pulsed load conditions
such that T J ≈ T A . The LTM4603E/LTM4603E-1 are 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
LTM4603I/LTM4603I-1 are guaranteed over the –40°C to 85°C operating
temperature range.
4
Note 3: Remote sense amplifier recommended for ≤3.3V output.
Note 4: 100% tested at wafer sort only.
Note 5: See output current derating curves for different V IN , V OUT and T A .
4603fb
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