Datasheet

LTM4603/LTM4603-1
3
4603fb
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
Q(VIN,NOLOAD)
Input Supply Bias Current V
IN
= 12V, No Switching
V
IN
= 12V, V
OUT
= 1.5V, Switching Continuous
V
IN
= 5V, No Switching
V
IN
= 5V, V
OUT
= 1.5V, Switching Continuous
Shutdown, RUN = 0, V
IN
= 12V
3.8
25
2.5
43
22
mA
mA
mA
mA
µA
I
S(VIN)
Input Supply Current V
IN
= 12V, V
OUT
= 1.5V, I
OUT
= 6A
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 6A
V
IN
= 5V, V
OUT
= 1.5V, I
OUT
= 6A
0.92
1.83
2.12
A
A
A
INTV
CC
V
IN
= 12V, RUN > 2V No Load 4.7 5 5.3 V
Output Specifications
I
OUTDC
Output Continuous Current Range V
IN
= 12V, V
OUT
= 1.5V (Note 5) 0 6 A
∆V
OUT(LINE)
V
OUT
Line Regulation Accuracy V
OUT
= 1.5V, I
OUT
= 0A, V
IN
= 4.5V to 20V
l
0.3 %
∆V
OUT(LOAD)
V
OUT
Load Regulation Accuracy V
OUT
= 1.5V, I
OUT
= 0A to 6A (Note 5)
V
IN
= 12V, with Remote Sense Amp
V
IN
= 12V, LTM4603-1
l
l
0.25
0.5
%
%
V
OUT(AC)
Output Ripple Voltage
I
OUT
= 0A, C
OUT
= 2× 100µF X5R Ceramic
V
IN
= 12V, V
OUT
= 1.5V
V
IN
= 5V, V
OUT
= 1.5V
10
10
mV
P-P
mV
P-P
f
S
Output Ripple Voltage Frequency I
OUT
= 3A, V
IN
= 12V, V
OUT
= 1.5V 1000 kHz
ΔV
OUT(START)
Turn-On Overshoot C
OUT
= 200µF, V
OUT
= 1.5V, I
OUT
= 0A,
TRACK/SS = 10nF
V
IN
= 12V
V
IN
= 5V
20
20
mV
mV
t
START
Turn-On Time C
OUT
= 200µF, V
OUT
= 1.5V, TRACK/SS = Open,
I
OUT
= 1A Resistive Load
V
IN
= 12V
V
IN
= 5V
0.5
0.5
ms
ms
ΔV
OUTLS
Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load,
C
OUT
= 2 × 22µF Ceramic, 470µF 4V
Sanyo POSCAP
V
IN
= 12V
V
IN
= 5V
35
35
mV
mV
t
SETTLE
Settling Time for Dynamic Load Step Load: 0% to 50% to 10% of Full Load
V
IN
= 12V 25 µs
I
OUTPK
Output Current Limit
C
OUT
= 2× 100µF X5R Ceramic
V
IN
= 12V, V
OUT
= 1.5V
V
IN
= 5V, V
OUT
= 1.5V
8
8
A
A
Remote Sense Amp (LTM4603 Only, Not Supported in the LTM4603-1) (Note 3)
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
AV Differential Gain 1 V/V
GBP Gain Bandwidth Product 3 MHz
SR Slew Rate 2 V/µs
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