Datasheet

4
LT1584/LT1585/LT1587
158457a
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Dropout Voltage LT1584 ∆V
REF
= 1%, I
OUT
= 7A
LT1584-3.3 ∆V
OUT
= 1%, I
OUT
= 7A
LT1584-3.38 ∆V
OUT
= 1%, I
OUT
= 7A
LT1584-3.45 ∆V
OUT
= 1%, I
OUT
= 7A
LT1584-3.6 ∆V
OUT
= 1%, I
OUT
= 7A ● 1.250 1.400 V
LT1584IT-3.3 T
J
< 25°C ● 1.250 1.500 V
Current Limit LT1584 (V
IN
– V
OUT
) = 3V
(Note 4) LT1584-3.3 (V
IN
– V
OUT
) = 3V
LT1584-3.38 (V
IN
– V
OUT
) = 3V
LT1584-3.45 (V
IN
– V
OUT
) = 3V
LT1584-3.6 (V
IN
– V
OUT
) = 3V ● 7.100 8.250 A
LT1585 (V
IN
– V
OUT
) = 5.5V
LT1585-3.3 (V
IN
– V
OUT
) = 5.5V
T
J
≥ 25°C ● 4.600 5.25 A
T
J
< 25°C ● 4.100 5.25 A
LT1585-3.38 (V
IN
– V
OUT
) = 5.5V
LT1585-3.45 (V
IN
– V
OUT
) = 5.5V
LT1585-3.6 (V
IN
– V
OUT
) = 5.5V ● 4.100 4.750 A
LT1587 (V
IN
– V
OUT
) = 5.5V
LT1587-3.3 (V
IN
– V
OUT
) = 5.5V
LT1587-3.45 (V
IN
– V
OUT
) = 5.5V
LT1587-3.6 (V
IN
– V
OUT
) = 5.5V ● 3.100 3.750 A
Adjust Pin Current LT1584/5/7 ● 55 120 µA
Adjust Pin Current LT1584 1.5V ≤ (V
IN
– V
OUT
) ≤ 3V, 10mA ≤ I
OUT
≤ I
FULL LOAD
Change (Note 4) LT1585/7 1.5V ≤ (V
IN
– V
OUT
) ≤ 5.75V, 10mA ≤ I
OUT
≤ I
FULL LOAD
● 0.2 5 µA
Minimum LT1584/5/7 1.5V ≤ (V
IN
– V
OUT
) ≤ 5.75V ● 210mA
Load Current
Quiescent Current LT1584/5/7-3.3 V
IN
= 5V
LT1584/5-3.38 V
IN
= 5V
LT1584/5/7-3.45 V
IN
= 5V
LT1584/5/7-3.6 V
IN
= 5V ● 813mA
LT1584IT-3.3 V
IN
= 5V ● 815mA
Ripple Rejection LT1584 f = 120Hz, C
OUT
= 25µF Tant., (V
IN
– V
OUT
) = 2.5V, I
OUT
= 7A
LT1584-3.3 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 5.8V, I
OUT
= 7A
LT1584-3.38 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 5.88V, I
OUT
= 7A
LT1584-3.45 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 5.95V, I
OUT
= 7A
LT1584-3.6 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.1V, I
OUT
= 7A
LT1585 f = 120Hz, C
OUT
= 25µF Tant., (V
IN
– V
OUT
) = 3V,
I
OUT
= 4.6A, T
J
≥ 25°C
f = 120Hz, C
OUT
= 25µF Tant., (V
IN
– V
OUT
) = 3V,
I
OUT
= 4A, T
J
< 25°C
LT1585-3.3 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.3V,
I
OUT
= 4.6A, T
J
≥ 25°C
f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.3V,
I
OUT
= 4A, T
J
< 25°C
LT1585-3.38 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.38V, I
OUT
= 4A
LT1585-3.45 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.45V, I
OUT
= 4A
LT1585-3.6 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.6V, I
OUT
= 4A
LT1587 f = 120Hz, C
OUT
= 25µF Tant., (V
IN
– V
OUT
) = 3V, I
OUT
= 3A
LT1587-3.3 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.3V, I
OUT
= 3A
LT1587-3.45 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.45V, I
OUT
= 3A
LT1587-3.6 f = 120Hz, C
OUT
= 25µF Tant., V
IN
= 6.6V, I
OUT
= 3A ● 60 72 dB