Datasheet

LTM4603/LTM4603-1
4
4603fb
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
R
IN
Input Resistance V
OSNS
+
to GND 20
kW
CMRR Common Mode Rejection Ratio 100 dB
Control Stage
V
FB
Error Amplifier Input Voltage
Accuracy
I
OUT
= 0A, V
OUT
= 1.5V
l
0.594 0.6 0.606 V
V
RUN
RUN Pin On/Off Threshold 1 1.5 1.9 V
I
TRACK/SS
Soft-Start Charging Current V
TRACK/SS
= 0V –1 –1.5 –2 µA
t
ON(MIN)
Minimum On Time (Note 4) 50 100 ns
t
OFF(MIN)
Minimum Off Time (Note 4) 250 400 ns
R
PLLIN
PLLIN Input Resistance 50
kW
I
DRVCC
Current into DRV
CC
Pin V
OUT
= 1.5V, I
OUT
= 1A, DRV
CC
= 5V 20 27 mA
R
FBHI
Resistor Between V
OUT_LCL
and V
FB
60.098 60.4 60.702
kW
V
MPGM
Margin Reference Voltage 1.18 V
V
MARG0
, V
MARG1
MARG0, MARG1 Voltage Thresholds 1.4 V
PGOOD Output
ΔV
FBH
PGOOD Upper Threshold V
FB
Rising 7 10 13 %
ΔV
FBL
PGOOD Lower Threshold V
FB
Falling –7 –10 –13 %
ΔV
FB(HYS)
PGOOD Hysteresis V
FB
Returning (Note 4) 1.5 3 %
V
PGL
PGOOD Low Voltage I
PGOOD
= 5mA 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 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.
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
.
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.
electrical characteristics