Datasheet

LTM4601/LTM4601-1
4
4601fd
For more information www.linear.com/LTM4601
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Remote Sense Amp (Note 3) (LTM4601 Only, Not Supported in the LTM4601-1)
V
OSNS
+
, V
OSNS
–
CM Range
Common Mode Input Voltage Range V
IN
= 12V, RUN > 2V 0 INTV
CC
– 1 V
DIFFV
OUT
Range Output Voltage Range V
IN
= 12V, DIFFV
OUT
Load = 100k 0 INTV
CC
– 1 V
V
OS
Input Offset Voltage Magnitude 1.25 mV
A
V
Differential Gain 1 V/V
GBP Gain Bandwidth Product 3 MHz
SR Slew Rate 2 V/µs
R
IN
Input Resistance V
OSNS
+
to GND 20
kW
CMRR Common Mode Rejection Mode 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 –1.0 –1.5 –2.0 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 18 25 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 1.5 %
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 LTM4601 is tested under pulsed load conditions such that
T
J
≈ T
A
. The LTM4601E/LTM4601E-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 LTM4601I/LTM4601I-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 level only.
Note 5: Limit current into RUN pin to less than 1mA.
Note 6: See output current derating curves for different V
IN
, V
OUT
and T
A
.
elecTrical characTerisTics
The l denotes the specifications which apply over the –40°C to 85°C
temperature range (Note 2), otherwise specifications are at T
A
= 25°C, V
IN
= 12V, per typical application (front page) configuration.