LT1370 Linear Technology, LT1370 Datasheet - Page 3

• Manufacturer Part Number: LT1370
• Description: 500kHz High Efficiency 6A Switching Regulator
• Manufacturer: Linear Technology

V
SYMBOL
A
f
BV
V
I
I
The
temperature range.
ELECTRICAL C
LIM
Q
V
SAT
IN
I
I
SW
IN
= 5V, V
denotes specifications which apply over the full operating
PARAMETER
Error Amplifier Clamp Voltage
Error Amplifier Voltage Gain
V
Switching Frequency
Maximum Switch Duty Cycle
Switch Current Limit Blanking Time
Output Switch Breakdown Voltage
Output Switch ON Resistance
Switch Current Limit
Supply Current Increase During Switch ON Time
Control Voltage to Switch Current
Transconductance
Minimum Input Voltage
Supply Current
Shutdown Supply Current
Shutdown Threshold
Shutdown Delay
S/S Input Current
Synchronization Frequency Range
C
C
= 0.6V, V
Pin Threshold
FB
= V
HARA TERISTICS
REF
, V
SW
C
, S/S and NFB pins open, T
CONDITIONS
High Clamp, V
Low Clamp, V
Duty Cycle = 0%
2.7V V
0 C T
– 40 C T
LT1370
LT1370HVC, 0 C T
LT1370HVI, – 40 C T
I
Duty Cycle = 50%
Duty Cycle = 80% (Note 1)
2.7V V
2.7V V
2.7V V
0V S/S 5V
SW
= 6A
J
A
IN
IN
IN
IN
= 25 C unless otherwise noted.
J
125 C
25V
25V
25V, V
25V
FB
0 C (I-Grade)
FB
Note 1: For duty cycles (DC) between 45% and 85%, minimum switch
current limit is given by I
= 1.5V
= 1V
S/S
J
J
125 C
0.6V
0 C (I-Grade)
LIM
= 2.65(2.7 – DC).
MIN
460
440
400
600
1.5
0.2
0.9
0.6
– 7
85
35
42
40
6
4
0.065
TYP
500
130
500
500
1.8
0.3
1.1
2.4
4.5
1.3
95
44
47
22
10
12
12
8
7
MAX
2.30
0.52
1.35
0.11
550
580
580
300
800
2.7
LT1370
10
33
40
25
10
6
2
UNITS
mA/A
3
V/ V
kHz
kHz
kHz
A/V
kHz
mA
ns
%
V
V
V
V
V
V
A
A
V
A
V
A
s