LT1614 Linear Technology, LT1614 Datasheet - Page 3

• Manufacturer Part Number: LT1614
• Description: Inverting 600kHz Switching Regulator
• Manufacturer: Linear Technology

Commercial Grade 0 C to 70 C. V
Industrial Grade – 40 C to 85 C. V
PARAMETER
Quiescent Current
Feedback Voltage
NFB Pin Bias Current (Note 2)
Reference Line Regulation
Minimum Input Voltage
Maximum Input Voltage
Error Amp Transconductance
Error Amp Voltage Gain
Switching Frequency
Maximum Duty Cycle
Switch Current Limit (Note 3)
Switch V
Shutdown Pin Current
LBI Threshold Voltage
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 4)
Low-Battery Detector Gain
Switch Leakage Current
The
temperature range.
Note 1: The LT1614C is guaranteed to meet specified performance from
0 C to 70 C and is designed, characterized and expected to meet these
extended temperature limits, but is not tested at – 40 C and 85 C. The
LT1614I is guaranteed to meet the extended temperature limits.
PARAMETER
Switch V
Shutdown Pin Current
LBI Threshold Voltage
LBO Output Low
LBO Leakage Current
LBI Input Bias Current (Note 4)
Low-Battery Detector Gain
Switch Leakage Current
ELECTRICAL C
denotes specifications which apply over the full operating
CESAT
CESAT
HARA TERISTICS
IN
IN
= 1.5V, V
= 1.5V, V
C
SHDN
SHDN
= V
= V
IN
IN
, T
unless otherwise noted.
CONDITIONS
V
V
1V V
2V V
– 40 C
85 C
I
I
V
V
I
V
V
1M Load
V
A
CONDITIONS
I
I
V
V
I
V
V
1M Load
V
SW
SW
SINK
SW
SW
SINK
SHDN
SHDN
LBI
LBI
SW
SHDN
NFB
SHDN
SHDN
LBI
LBI
SW
I = 5 A
= 25 C unless otherwise noted.
= 500mA (25 C, 0 C)
= 500mA (70 C)
= 500mA (– 40 C)
= 500mA (85 C)
= 250mV, V
= 150mV
= 250mV, V
= 150mV
= 5V
= 5V
= – 1.24V
= 10 A
= 10 A
IN
IN
= V
= 0V
= 0V
= V
= 0V
IN
IN
2V
6V
Note 2: Bias current flows out of NFB pin.
Note 3: Switch current limit guaranteed by design and/or correlation to
static tests. Duty cycle affects current limit due to ramp generator.
Note 4: Bias current flows out of LBI pin.
LBO
LBO
= 5V
= 5V
– 1.21
0.75
MIN
MIN
190
185
500
180
– 2
70
– 1.24
1000
1000
– 4.5
0.01
0.01
0.01
TYP
TYP
295
200
100
600
250
330
200
0.6
0.3
1.1
0.8
1.2
0.1
0.1
0.1
– 5
10
– 5
10
16
80
10
1
5
5
– 1.27
MAX
MAX
– 7.5
0.25
1.25
0.25
LT1614
– 10
– 10
350
400
210
215
750
350
400
220
1.1
0.8
1.0
0.3
0.1
50
10
30
2
6
3
3
20
20
UNITS
UNITS
mhos
3
%/V
%/V
V/V
kHz
V/V
mA
V/V
mV
mV
mV
mV
mV
mV
mV
nA
nA
%
A
A
V
A
A
A
V
A
V
V
V
A
A
A
V
A
A