LT1308B Linear Technology, LT1308B Datasheet - Page 3

• Manufacturer Part Number: LT1308B
• Description: High Current/ Micropower Single Cell/ 600kHz DC/DC Converters
• Manufacturer: Linear Technology

SYMBOL
I
V
I
g
A
f
Commercial Grade T
SYMBOL
I
V
g
A
f
Industrial Grade – 40 C to 85 C. V
Commercial Grade 0 C to 70 C. V
SYMBOL
ELECTRICAL C
Q
B
OSC
Q
OSC
m
m
FB
V
FB
V
PARAMETER
Quiescent Current
Feedback Voltage
FB Pin Bias Current (Note 2)
Reference Line Regulation
Minimum Input Voltage (– 40 C)
Input Voltage Range
Error Amp Transconductance
Error Amp Voltage Gain
Switching Frequency
Maximum Duty Cycle
Switch Current Limit (Note 3)
Switch V
Burst Mode Operation Switch Current Limit
PARAMETER
Quiescent Current
Feedback Voltage
Error Amp Transconductance
Error Amp Voltage Gain
Switching Frequency
Maximum Duty Cycle
Switch V
Shutdown Pin Current
LBI Threshold Voltage
PARAMETER
Low-Battery Detector Gain
Switch Leakage Current
Reverse Battery Current
CESAT
CESAT
A
= – 20 C, V
HARA TERISTICS
IN
IN
IN
= 1.1V, V
= 1.1V, V
= 1.2V, V
C
SHDN
SHDN
SHDN
= V
= V
= V
IN
IN
IN
, unless otherwise noted (Note 1).
, T
, T
CONDITIONS
Not Switching
V
V
1.1V V
1.1V V
2V V
– 40 C
85 C
V
V
– 40 C
85 C
DC = 40%
DC = 80%
I
I
L = 3.3 H, V
CONDITIONS
V
V
I
V
V
A
CONDITIONS
1M Load (25 C, 0 C)
1M Load (70 C)
V
(Note 5)
A
SW
SW
SW
SHDN
FB
IN
IN
SW
FB
SHDN
SHDN
SHDN
I = 5 A
I = 5 A
= 25 C unless otherwise noted.
= 25 C, unless otherwise noted.
= 1.3V (– 40 C)
= 1.3V (85 C)
= V
= 1.3V, Not Switching
= 2A (– 40 C)
= 2A (85 C)
= 2A, V
= 5V
IN
= 0V
= 0V
= V
= 0V
REF
IN
IN
IN
6V
IN
OUT
2V (– 40 C)
2V (85 C)
= 1.2V
= 3.3V
1.195
1.195
1000
MIN
MIN
MIN
500
500
500
500
180
1.2
2.0
1.6
80
75
3000
– 1.5
1.22
0.01
TYP
1.22
TYP
TYP
100
600
300
200
100
600
600
300
330
200
750
0.6
0.3
2.5
80
27
40
80
88
80
35
88
1
2.5
1
2
1.245
1.245
MAX
MAX
MAX
– 2.5
160
750
750
350
400
160
750
350
220
1.1
1.5
0.8
1.2
LT1308
80
95
10
4.0
3
6
3
UNITS
UNITS
UNITS
mhos
mhos
3
%/V
%/V
%/V
kHz
V/V
V/V
kHz
kHz
V/V
mV
mV
mA
V/V
V/V
mA
mV
mV
nA
%
%
%
A
A
V
V
V
A
A
A
A
A
V
A
A