LTC3633 LINER [Linear Technology], LTC3633 Datasheet - Page 3

• Manufacturer Part Number: LTC3633
• Description: Dual Channel 3A, 15V Monolithic Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
junction temperature range, otherwise specifi cations are at T
SYMBOL
V
I
V
ΔV
ΔV
I
g
t
t
f
I
R
I
V
R
t
t
I
V
Q
FB
LIM
SW(LKG)
ON
OFF
OSC
PGOOD
SS
TRACKSS
m(EA)
IN
FB
DS(ON)
VIN-OV
PGOOD
PHMODE
LINE_REG
LOAD_REG
PARAMETER
Supply Range
Input DC Supply Current (V
Both Channels Active (Note 5)
Sleep Current
Shutdown
Feedback Reference Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
Feedback Pin Input Current
Error Amplifi er Transconductance
Minimum On Time
Minimum Off Time
Oscillator Frequency
Valley Switch Current Limit
Channel 1
Channel 2
Switch Leakage Current
V
INTV
INTV
RUN Threshold Rising
RUN Threshold Falling
RUN Leakage Current
V2P5 Voltage
PGOOD Good-to-Bad Threshold
PGOOD Bad-to-Good Threshold
PGOOD Pull-Down Resistance
Power Good Filter Time
Internal Soft-Start Time
V
TRACKSS Pull-Up Current
PHMODE Threshold Voltage
IN
FB
Channel 1 (3A)
Channel 2 (3A)
Top Switch On-Resistance
Bottom Switch On-Resistance
Top Switch On-Resistance
Bottom Switch On-Resistance
Overvoltage Lockout Threshold
During Tracking
CC
CC
Voltage
Load Regulation
IN1
+ V
IN2
)
CONDITIONS
MODE = 0V
MODE = INTV
RUN = 0V
V
ITH = 0.8V to 1.6V
ITH = 1.2V
V
V
V
RT = 160k
RT = 80k
V
V
V
3.6V < V
0mA to 50mA Load, V
V
I
V
V
V
V
10mA Load
TRACKSS = 0.3V
PHMODE V
PHMODE V
LOAD
IN
ON
IN
RT
IN
IN
IN
IN
FB
FB
FB
FB
= 3.6V to 15V
= 6V
= 15V, V
Rising
Falling
= 15V
Rising
Falling
Falling
Rising
= INTV
= 1V, V
= 0mA to 10mA
The
IN
J
< 15V, 0mA Load
CC
IH
IL
IN
= 25°C. V
l
RUN
CC
= 4V
denotes the specifi cations which apply over the full operating
, V
= 0V
FB1
IN
, V
IN
= 4V to 15V
FB2
= 12V, INTV
> 0.6
CC
l
l
l
l
l
= 3.3V, unless otherwise noted.
0.594
0.98
2.46
0.28
MIN
16.8
15.8
1.18
3.6
1.4
3.4
2.6
2.6
1.7
3.1
–3
20
3
1
TYP
0.02
0.05
0.01
16.5
1.22
1.01
500
17.5
400
130
130
1.3
0.6
3.5
3.5
3.3
0.7
2.5
0.3
1.8
1.4
13
20
40
65
65
–8
–5
15
40
2
2
4
0
8
5
LTC3633
0.606
0.315
MAX
1.26
1.04
2.54
±30
–10
700
2.6
2.3
4.6
4.5
4.5
3.5
0.3
15
60
18
17
±3
10
±1
UNITS
3
MHz
MHz
MHz
%/V
3633f
mΩ
mΩ
mΩ
mΩ
mA
mS
μA
μA
nA
μA
μA
μA
ns
ns
μs
μs
%
%
%
%
%
%
Ω
V
V
A
A
V
V
V
V
V
V
V
V
V