1308AI Linear Technology Corporation, 1308AI Datasheet - Page 3

• Manufacturer Part Number: 1308AI
• Description: Lt1308b - Single Cell High Currentmicropower 600khz Boost Dc/dc Converter
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
range, otherwise specifications are T
The
Industrial Grade – 40°C to 85°C. V
SYMBOL PARAMETER
I
V
I
g
A
f
SYMBOL PARAMETER
I
V
I
g
A
Q
B
OSC
Q
B
m
FB
m
V
FB
V
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
Quiescent Current
Feedback Voltage
FB Pin Bias Current
Reference Line Regulation
Minimum Input Voltage
Error Amp Transconductance
Error Amp Voltage Gain
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch V
Burst Mode Operation Switch Current Limit
(LT1308A)
Shutdown Pin Current
LBI Threshold Voltage
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 5)
Low-Battery Detector Gain
Switch Leakage Current
Quiescent Current
Feedback Voltage
FB Pin Bias Current
Reference Line Regulation
Minimum Input Voltage
Error Amp Transconductance
Error Amp Voltage Gain
CESAT
IN
= 1.2V, V
A
= 25°C. Commercial Grade 0°C to 70°C. V
SHDN
= V
(Note 3)
CONDITIONS
Not Switching, LT1308A
Switching, LT1308B
V
(Note 3)
1.1V ≤ V
2V ≤ V
ΔI = 5μA
V
Duty Cyle = 30% (Note 4)
I
I
V
V
V
V
I
V
V
V
CONDITIONS
Not Switching, LT1308A
Switching, LT1308B
V
1.1V ≤ V
2V ≤ V
ΔI = 5μA
SW
SW
SINK
IN
SHDN
SHDN
IN
IN
SHDN
SHDN
SHDN
LBI
LBI
SW
, unless otherwise noted.
= 1.2V
= 2.5V, Circuit of Figure 1
= 2A (25°C, 0°C), V
= 2A (70°C), V
= 250mV, V
= 150mV
= 5V
= 50μA
The
IN
IN
= 0V (LT1308A/LT1308B)
= 0V (LT1308A/LT1308B)
= 1.1V
= 6V
= 0V
IN
IN
≤ 10V
≤ 10V
●
≤ 2V
≤ 2V
denotes specifications which apply over the full operating temperature
LBO
IN
= 5V
= 1.5V
IN
= 1.5V
IN
= 1.1V, V
SHDN
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
= V
LT1308A/LT1308B
1.19
MIN
1.20
MIN
500
196
194
82
IN
2
, unless otherwise noted.
3000
0.01
1.22
0.05
0.01
0.92
TYP
0.01
1.22
0.03
0.01
0.92
0.01
0.01
0.01
TYP
140
100
600
290
330
400
200
200
140
100
2.5
2.5
0.1
27
60
27
60
90
20
33
3
2
A
= 25°C.
MAX
MAX
1.24
0.25
1.25
240
700
350
400
204
206
100
240
0.4
0.2
0.4
0.2
4.5
0.1
0.1
35
80
80
10
4
1
1
5
4
1
1
1308abfa
μmhos
μmhos
UNITS
UNITS
3
%/V
%/V
%/V
%/V
kHz
V/V
V/V
V/V
mA
mA
mV
mV
mA
mV
mV
μA
μA
nA
μA
μA
nA
μA
μA
μA
μA
nA
μA
%
V
V
V
V
A
V