LTC3718EG Linear Technology, LTC3718EG Datasheet - Page 3

• Manufacturer Part Number: LTC3718EG
• Description: IC DC/DC CONTRLR DDR/QDR 24-SSOP
• Manufacturer: Linear Technology

Specifications of LTC3718EG

• Applications: Controller, DDR, QDR
• Voltage - Input: 1.5 ~ 36 V
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are T
SYMBOL
V
I
I
V
TG R
TG R
BG R
BG R
TG t
TG t
BG t
BG t
Internal V
V
PGOOD Output
V
Boost Regulator
V
V
I
V
I
f
DC
I
V
I
V
V
I
RUN/SS(C)
RUN/SS(D)
Q(VIN2)
VFB2
BOOST
LIM(BOOST)
SWLKG(BOOST)
SHDN
RUN/SS(LT)
IN(UVLO)
INTVCC
PGL
IN2(MIN)
IN2(MAX)
FB2
CESAT(BOOST)
SHDN(HIGH)
SHDN(LOW)
V
V
V
V
V
LDO(LOAD)
FB1H
FB1L
FB1(HYS)
FB2(LINE)
BOOST(MAX)
r
f
r
f
UP
DOWN
UP
DOWN
CC
Regulator
PARAMETER
RUN Pin Latchoff Threshold
Soft-Start Charge Current
Soft-Start Discharge Current
V
TG Driver Pull-Up On Resistance
TG Driver Pull-Down On Resistance
BG Driver Pull-Up On Resistance
BG Driver Pull-Down On Resistance
TG Rise Time
TG Fall Time
BG Rise Time
BG Fall Time
Internal V
Internal V
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysterisis
PGOOD Low Voltage
Minimum Operating Voltage
Maximum Operating Voltage
Input DC Supply Current (V
V
V
Boost Reference Line Regulation
BOOST Switching Frequency
BOOST Maximum Duty Cycle
BOOST Switch Current Limit
BOOST Switch V
BOOST Switch Leakage Current
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Pin Bias Current
IN1
FB2
FB2
Normal
Shutdown Supply Current
Undervoltage Lockout
Feedback Voltage
Pin Bias Current
CC
CC
Voltage
Load Regulation
CESAT
IN2
)
A
= 25 C. V
CONDITIONS
RUN/SS Pin Falling
V
V
V
V
TG High
TG Low
BG High
BG Low
C
C
C
C
6V < V
I
V
V
V
I
V
0 C < T < 70 C
1.5V < V
0 C < T < 70 C
(Note 5)
I
V
V
V
CC
PGOOD
SW
RUN/SS
RUN/SS
IN
IN
LOAD
LOAD
LOAD
LOAD
FB1
FB1
FB1
SHDN
SW
SHDN
SHDN
The
= 0mA to 20mA
Falling
Rising
= 300mA
= 5V
= Rising
= Falling
= Returning
IN1
=0V
= 3300pF
= 3300pF
= 3300pF
= 3300pF
IN1
= 3V
= 0V
= 5mA
= 0V
= 4.5V, V
IN2
= 15V, V
<30V
denotes specifications which apply over the full operating
< 10V
FB
IN2
= 0V
= 1.5V unless otherwise noted.
1.205
– 0.5
1.20
MIN
500
0.8
4.7
1.0
0.9
– 8
82
8
1
–1.2
– 0.1
0.15
0.01
1.23
1.23
0.02
0.01
0.01
TYP
–10
800
300
3.5
1.8
3.4
3.5
0.9
1.4
1.4
20
20
20
20
10
86
27
25
2
2
3
1
5
1
3
LTC3718
1.255
MAX
1.26
–12
350
4.2
3.9
4.0
5.3
0.4
1.5
4.5
0.2
1.8
1.9
0.3
0.1
– 3
12
10
80
50
3
3
3
4
2
2
1
1
2
UNITS
3718fa
3
MHz
MHz
%/V
mA
mA
mV
nA
ns
ns
ns
ns
%
%
%
%
%
V
A
A
V
V
V
V
V
V
A
V
V
A
V
V
A
A