LT1584/LT1585/LT1587
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Adjust Pin Current
LT1584/5/7
●
55
120
µA
Adjust Pin Current
Change (Note 3)
LT1584
1.5V ≤ (V – V ) ≤ 3V, 10mA ≤ I
≤ I
OUT
IN
OUT
OUT
FULL LOAD
LT1585/7
1.5V ≤ (V – V ) ≤ 5.75V, 10mA ≤ I
≤ I
●
●
0.2
2
5
µA
IN
OUT
FULL LOAD
Minimum
Load Current
LT1584/5/7
1.5V ≤ (V – V ) ≤ 5.75V
10
mA
IN
OUT
Quiescent Current
LT1584/5/7-3.3
LT1584/5-3.38
V
V
= 5V
= 5V
IN
IN
IN
LT1584/5/7-3.45 V = 5V
LT1584/5/7-3.6
V
= 5V
●
8
13
mA
IN
Ripple Rejection
LT1584
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
= 25µF Tant., (V – V ) = 2.5V, I
= 7A
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
LT1584-3.3
LT1584-3.38
LT1584-3.45
LT1584-3.6
LT1585
= 25µF Tant., V = 5.8V, I
= 7A
OUT
IN
IN
= 25µF Tant., V = 5.88V, I
= 7A
OUT
OUT
= 25µF Tant., V = 5.95V, I
= 7A
IN
= 25µF Tant., V = 6.1V, I
= 7A
OUT
IN
= 25µF Tant., (V – V ) = 3V,
IN
OUT
I
= 4.6A, T ≥ 25°C
J
OUT
f = 120Hz, C
= 25µF Tant., (V – V ) = 3V,
IN OUT
OUT
I
= 4A, T < 25°C
J
OUT
LT1585-3.3
f = 120Hz, C
= 25µF Tant., V = 6.3V,
OUT IN
I
= 4.6A, T ≥ 25°C
J
OUT
f = 120Hz, C
= 25µF Tant., V = 6.3V,
IN
OUT
I
= 4A, T < 25°C
J
OUT
LT1585-3.38
LT1585-3.45
LT1585-3.6
LT1587
LT1587-3.3
LT1587-3.45
LT1587-3.6
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
f = 120Hz, C
= 25µF Tant., V = 6.38V, I
= 4A
= 4A
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
OUT
= 25µF Tant., V = 6.45V, I
IN
IN
= 25µF Tant., V = 6.6V, I
= 4A
OUT
= 25µF Tant., (V – V ) = 3V, I = 3A
OUT
IN
OUT
= 25µF Tant., V = 6.3V, I
= 3A
OUT
IN
= 25µF Tant., V = 6.45V, I
= 3A
OUT
IN
= 25µF Tant., V = 6.6V, I
= 3A
OUT
●
●
60
72
dB
IN
Thermal Regulation
LT1584/5/7
T = 25°C, 30ms pulse
A
A
A
A
LT1584/5/7-3.3 T = 25°C, 30ms pulse
LT1584/5-3.38 T = 25°C, 30ms pulse
LT1584/5/7-3.45 T = 25°C, 30ms pulse
LT1584/5/7-3.6 T = 25°C, 30ms pulse
0.004
0.5
0.02
1.0
%/W
%
A
Temperature Stability
Long-Term Stability
RMS Output Noise
T = 125°C, 1000 Hrs.
A
0.03
0.003
%
T = 25°C, 10Hz ≤ f ≤ 10kHz
A
%
(% of V
)
OUT
Thermal Resistance
Junction to Case
LT1584
LT1585
LT1585
LT1587
LT1587
T Package: Control Circuitry/Power Transistor
T Package: Control Circuitry/Power Transistor
M Package: Control Circuitry/Power Transistor
T Package: Control Circuitry/Power Transistor
M Package: Control Circuitry/Power Transistor
0.65/2.7
0.7/3.0
0.7/3.0
0.7/3.0
0.7/3.0
°C/W
°C/W
°C/W
°C/W
°C/W
The
●
denotes specifications which apply over the specified operating
Note 3: I
is defined as the maximum value of output load current
FULL LOAD
temperature range.
as a function of input-to-output voltage. I
is equal to 7A for the
FULL LOAD
LT1584, 4.6A at T ≥ 25°C and 4A at T < 25°C for the LT1585/LT1585-3.3
J
J
Note 1: See thermal regulation specifications for changes in output voltage
due to heating effects. Load and line regulation are measured at a constant
junction temperature by low duty cycle pulse testing.
Note 2: Line and load regulation are guaranteed up to the maximum power
dissipation (25W for the LT1584 in T package, 26.5W for the LT1585 in T
package, 18W for the LT1587 in T package). Power dissipation is
determined by input/output differential and the output current. Guaranteed
maximum output power will not be available over the full input/output
voltage range.
and 3A for the LT1587. The remaining LT1585 fixed voltage versions are
4A. The LT1585 and LT1587 have constant current limit with changes in
input-to-output voltage. The LT1584 has variable current limit which
decreases about 4A as input-to-output voltage increases from 3V to 7V.
4
Linear [ Linear ]
