lt1765es8-trpbf Linear Technology Corporation, lt1765es8-trpbf Datasheet - Page 5

• Manufacturer Part Number: lt1765es8-trpbf
• Description: Monolithic 3a, 1.25mhz Step-down Switching Regulators
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
3.5
3.3
3.1
2.9
2.7
2.5
0.001
Minimum Input Voltage for
2.5V Out
4
3
2
1
0
0
0.01
LOAD CURRENT (A)
Current Limit Foldback
0.2
FEEDBACK VOLTAGE (V)
0.4
0.1
SWITCH CURRENT
FB CURRENT
W
0.6
1765 G07
0.8
U
1
1
1765 G10
3.0
2.8
2.6
2.4
2.2
300
250
200
150
100
1.2
50
0
0
40
30
20
10
0
Maximum Load Current,
V
0
SHDN Supply Current
OUT
V
IN
0.2
= 2.5V
= 15V
5
SHUTDOWN VOLTAGE (V)
INPUT VOLTAGE (V)
0.4
10
0.6
LT1765/LT1765-1.8/LT1765-2.5/
15
0.8
L = 4.7µH
L = 2.2µH
L = 1.5µH
1
20
1.2
1765 G12
1765 G08
3.0
2.8
2.6
2.4
2.2
2.0
25
1.4
0
Maximum Load Current,
V
OUT
LT1765-3.3/LT1765-5
= 5V
5
1200
1000
800
600
400
200
INPUT VOLTAGE (V)
0
0
Input Supply Current
10
5
15
UNDERVOLTAGE
LOCKOUT
INPUT VOLTAGE (V)
10
L = 4.7µH
L = 2.2µH
L = 1.5µH
20
15
1765 G11
25
20
25
1765 G09
1765fb
5
30