LTC3718EG Linear Technology, LTC3718EG Datasheet - Page 4

• 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
LTC3718
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: T
dissipation P
TYPICAL PERFOR A CE CHARACTERISTICS
4
1.25
1.24
1.23
1.22
1.21
1.20
LTC3718EG: T
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
–50
0
–50
V
Boost Converter Oscillator
Frequency vs Temperature
FB2
J
FIGURE 1 CIRCUIT
is calculated from the ambient temperature T
–25
, Feedback Pin Voltage
D
–25
V
as follows:
IN
= 5V
J
TEMPERATURE ( C)
= T
V
TEMPERATURE ( C)
0
IN
0
A
= 1.5V
+ (P
25
25
D
• 130 C/W)
50
50
W
75
75
3718 G04
3718 G01
U
100
100
A
100
50
40
30
20
10
90
80
70
60
50
40
30
20
10
and power
0
0
0.01
0
SHDN Pin Current vs V
Efficiency vs Load Current
V
V
T
IN
OUT
A
= 25 C
= 2.5V
= 1.25V
1
0.1
SHDN PIN VOLTAGE (V)
LOAD CURRENT (A)
2
1
Note 3: The LTC3718 is tested in a feedback loop that adjusts V
achieve a specified error amplifier output voltage (I
Note 4: The LTC3718 is guaranteed to meet performance specifications
from 0 C to 70 C. Specifications over the –40 C to 85 C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 5: Current limit guaranteed by design and/or correlation to static test.
FIGURE 1 CIRCUIT
3
SHDN
10
4
3718 G05/TA01a
3718 G02
100
5
50.00
49.95
49.90
49.85
49.80
49.75
49.70
49.65
1000
900
800
700
600
500
400
300
200
1.5
10
Boost Converter Current Limit
vs Duty Cycle
V
Voltage
OUT
LOAD = 0A
1.7
20
/V
IN
1.9
30
Tracking Ratio vs Input
INPUT VOLTAGE (V)
LOAD = 10A
DUTY CYCLE (%)
2.1
40
TH
).
70 C
25 C
–40 C
2.3
50
FIGURE 1 CIRCUIT
LOAD = 1A
2.5
60
FB1
2.7
70
to
3718 G03
3718 G06
2.9
3718fa
80