LTC3717EGN Linear Technology, LTC3717EGN Datasheet - Page 4

• Manufacturer Part Number: LTC3717EGN
• Description: IC STEP-DWN CONTRLR SYNC 16-SSOP
• Manufacturer: Linear Technology

Specifications of LTC3717EGN

• Applications: Controller, DDR, QDR
• Voltage - Input: 4 ~ 36 V
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC3717
4
TYPICAL PERFOR A CE CHARACTERISTICS
1000
100
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
800
400
600
200
90
80
70
60
50
40
30
20
10
0
0.01
0
0
Efficiency vs Load Current
0
On-Time vs V
Load Regulation
0
I
V
V
ION
IN
OUT
FIGURE 1 CIRCUIT
1
= 30 A
= 2.5V
= 1.25V
0.1
2
LOAD CURRENT (A)
3
LOAD CURRENT (A)
V
1
ON
ON
4
VOLTAGE (V)
Voltage
1
5
FIGURE 1 CIRCUIT
6
2
V
V
7
IN
OUT
10
W
= 2.5V
= 1.25V
8
3717 G06
3717 G11
3717 G09
9
U
100
3
10
1V/DIV
2A/DIV
V
OUT
I
L
50.00
49.95
49.90
49.85
49.80
49.75
49.70
49.65
300
250
200
150
100
50
0
Start-Up Response
–50
V
V
LOAD = 0.2
FIGURE 1 CIRCUIT
1.5
On-Time vs Temperature
IN
OUT
I
V
Voltage
ION
= 2.5V
OUT
= 1.25V
–25
LOAD = 0A
= 30 A
1.7
/V
IN
1.9
0
TEMPERATURE ( C)
Tracking Ratio vs Input
INPUT VOLTAGE (V)
LOAD = 10A
4ms/DIV
2.1
25
2.3
50
FIGURE 1 CIRCUIT
LOAD = 1A
2.5
75
2.7
3718 G09.eps
100
3717 G12
3717 G07
2.9
125
200mV/DIV
5A/DIV
V
OUT
450
400
350
300
250
200
150
100
I
L
10k
100
50
10
1k
0
1.5
Frequency vs Input Voltage
On-Time vs I
1
Load-Step Transient
V
V
LOAD = 500mA TO 10A STEP
FIGURE 1 CIRCUIT
IN
OUT
V
FIGURE 1 CIRCUIT
= 2.5V
OUT
1.7
= 1.25V
= 1.25V
1.9
INPUT VOLTAGE (V)
I
ON
LOAD = 10A
LOAD = 0A
2.1
ON
CURRENT ( A)
20 s/DIV
Current
10
2.3
2.5
sn3717 3717fs
2.7
3718 G10.eps
3717 G13
3717 G08
2.9
100