LTC3604 Linear Technology, LTC3604 Datasheet - Page 3

• Manufacturer Part Number: LTC3604
• Description: 2.5A 15V Monolithic Synchronous Step-Down Regulator
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
junction temperature range, otherwise specifi cations are at T
SYMBOL
V
I
V
ΔV
ΔV
I
g
t
t
I
f
R
V
V
ΔINTV
V
V
I
V
V
t
R
I
t
V
I
V
I
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3604E is guaranteed to meet performance specifi cations
from 0°C to 85°C. Specifi cations over the –40°C to 125°C operating
Q
FB
ON(MIN)
OFF(MIN)
LIM
OSC
RUN(LKG)
PGOOD
SW(LKG)
SS
TRACK
MODE
VIN
m(EA)
VIN(OV)
FB
INTVCC
UVLO
RUN
FB_GB
FB_BG
FB_TRACK
MODE/SYNC
DS(ON)
PGOOD
LINEREG
LOADREG
CC
PARAMETER
Input Supply Range
Input DC Supply Current
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
Valley Switch Current Limit
Oscillator Frequency
Top Switch On-Resistance
Bottom Switch On-Resistance
V
INTV
INTV
INTV
Threshold
RUN Threshold
RUN Leakage Current
PGOOD Good-to-Bad Threshold
PGOOD Bad-to-Good Threshold
Power Good Filter Time
PGOOD Pull-Down Resistance
Switch Leakage Current
Internal Soft-Start Time
TRACK Pin
TRACK Pull-Up Current
MODE Threshold Voltage
SYNC Threshold Voltage
MODE Input Current
IN
Forced Continuous Operation
Sleep Current
Shutdown
Overvoltage Lockout Threshold
CC
CC
CC
Voltage
Load Regulation (Note 4)
Undervoltage Lockout
CONDITIONS
MODE = 0V
MODE = INTV
RUN = 0V
V
ITH = 0.6V to 1.6V
V
ITH = 1.2V
V
V
V
R
R
V
V
3.6V < V
I
INTV
INTV
RUN Rising
RUN Falling
V
FB Rising
FB Falling
FB Rising
FB Falling
10mA Load
V
V
TRACK = 0.3V
MODE V
MODE V
SYNC V
MODE = 0V
MODE = INTV
INTVCC
VIN
VIN
FB
ON
IN
RT
RT
RT
IN
IN
RUN
FB
= 6V
Rising
Falling
= 0.6V
from 10% to 90% Full Scale
= INTV
= 160k
= 80k
= 1V, V
CC
CC
= 3.6V to 15V
= 15V
= 0V
= 0mA to 20mA
Rising, V
Falling, V
IH
IN
IH
IL
CC
< 15V
IN
The
CC
= 4V
CC
J
, V
IN
IN
= 25°C. V
l
FB
= INTV
= INTV
denotes the specifi cations which apply over the full operating
> 0.6V
junction temperature range are assured by design, characterization, and
correlation with statistical process controls. The LTC3604I is guaranteed
over the full –40°C to 125°C operating junction temperature range. The
maximum ambient temperature is determined by specifi c operating
conditions in conjunction with board layout, the rated package thermal
resistance and other environmental factors.
CC
CC
VIN
= 12V, unless otherwise specifi ed.
l
l
l
l
l
l
l
l
l
0.594
MIN
16.8
15.8
3.13
1.21
0.97
0.28
0.95
3.6
2.6
1.4
1.7
3.4
1.0
–3
20
3
0.600
0.01
17.5
16.5
2.75
2.45
1.25
0.01
–1.5
TYP
700
300
130
100
400
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0.1
2.0
3.4
3.3
0.6
1.0
0.3
1.4
14
20
40
–8
–5
40
15
1.5
2
2
4
0
8
5
LTC3604
0.606
0.315
1000
MAX
3.45
1.29
1.03
500
±30
–10
700
4.3
2.6
2.3
4.6
2.9
0.4
15
25
60
18
17
±3
10
1
UNITS
3
MHz
MHz
MHz
3604f
%/V
mΩ
mΩ
mS
mV
μA
μA
μA
nA
μA
μA
μA
μA
μA
ns
ns
μs
μs
%
%
%
%
%
%
Ω
V
V
A
V
V
V
V
V
V
V
V
V
V