LT8610A_15 Datasheet, PDF (3/26 Pages) Linear Technology – 42V, 3.5A Synchronous Step-Down Regulator with 2.5A Quiescent Current

LT8610A/LT8610AB Series
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C.
PARAMETER
Minimum Input Voltage
V_IN Quiescent Current
V_IN Current in Regulation
V_IN Current in Regulation
Feedback Reference Voltage
(LT8610A/LT8610AB)
Output Voltage
(LT8610A-3.3/LT8610AB-3.3)
Output Voltage
(LT8610A-5/LT8610AB-5)
Feedback Voltage Line Regulation
(LT8610A/LT8610AB)
Voltage Line Regulation
(LT8610A-3.3/LT8610AB-3.3)
Voltage Line Regulation
(LT8610A-5/LT8610AB-5)
Feedback Pin Input Current
(LT8610A/LT8610AB)
Internal Feedback Resistor Divider
(LT8610A-3.3/LT8610AB-3.3)
Internal Feedback Resistor Divider
(LT8610A-5/LT8610AB-5)
INTV_CC Voltage
INTV_CC Undervoltage Lockout
BIAS Pin Current Consumption
Minimum On-Time
Minimum Off-Time
CONDITIONS
(Note 4)
l
V_EN/UV = 0V
l
V_EN/UV = 2V, Not Switching, V_SYNC = 0V
l
V_EN/UV = 2V, Not Switching, V_SYNC = 2V
V_OUT = 0.97V, V_IN = 6V, Output Load = 100µA (LT8610A)
l
V_OUT = 0.97V, V_IN = 6V, Output Load = 1mA (LT8610A)
l
V_OUT = 0.97V, V_IN = 6V, Output Load = 100µA (LT8610AB)
l
V_OUT = 0.97V, V_IN = 6V, Output Load = 1mA (LT8610AB)
l
V_OUT = 3.3V, V_IN = 8V, Output Load = 100µA (LT8610A-3.3) l
V_OUT = 3.3V, V_IN = 8V, Output Load = 1mA (LT8610A-3.3)
l
V_OUT = 3.3V, V_IN = 8V, Output Load = 100µA (LT8610AB-3.3) l
V_OUT = 3.3V, V_IN = 8V, Output Load = 1mA (LT8610AB-3.3) l
V_OUT = 5V, V_IN = 8V, Output Load = 100µA (LT8610A-5)
l
V_OUT = 5V, V_IN = 8V, Output Load = 1mA (LT8610A-5)
l
V_OUT = 5V, V_IN = 8V, Output Load = 100µA (LT8610AB-5)
l
V_OUT = 5V, V_IN = 8V, Output Load = 1mA (LT8610AB-5)
l
V_IN = 6V, I_LOAD = 0.5A
V_IN = 6V, I_LOAD = 0.5A
l
V_IN = 8V, I_LOAD = 0.5A
V_IN = 8V, I_LOAD = 0.5A
l
V_IN = 8V, I_LOAD = 0.5A
V_IN = 8V, I_LOAD = 0.5A
l
V_IN = 4V to 42V, I_LOAD = 1A
l
V_IN = 4V to 42V, I_LOAD = 1A
l
V_IN = 6V to 42V, I_LOAD = 1A
l
V_FB = 1V
I_LOAD = 0mA, V_BIAS = 0V
I_LOAD = 0mA, V_BIAS = 3.3V
V_BIAS = 3.3V, I_LOAD = 1A, 2MHz
I_LOAD = 1A, SYNC = 0V
l
I_LOAD = 1A, SYNC = 3.3V
l
MIN
0.964
0.958
3.28
3.26
4.97
4.94
–20
3.23
3.25
2.5
15
15
TYP
2.9
1.0
1.0
1.7
1.7
0.26
24
210
24
210
60
540
55
500
100
790
80
730
0.970
0.970
3.30
3.30
5.00
5.00
0.004
0.004
0.004
14.3
12.5
3.4
3.29
2.6
9
30
30
95
MAX
3.4
3
8
4
10
0.5
50
350
50
350
120
900
100
800
180
1200
150
1100
0.976
0.982
3.32
3.34
5.03
5.06
0.02
0.02
0.02
20
3.57
3.35
2.7
45
45
125
UNITS
V
µA
µA
µA
µA
mA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
V
V
V
V
V
V
%/V
%/V
%/V
nA
MΩ
MΩ
V
V
V
mA
ns
ns
ns
For more information www.linear.com/LT8610A
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