LT1765-3.3 LINER [Linear Technology], LT1765-3.3 Datasheet - Page 4
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LT1765-3.3
Manufacturer Part Number
LT1765-3.3
Description
Monolithic 3A, 1.25MHz Step-Down Switching Regulator
Manufacturer
LINER [Linear Technology]
Datasheet
1.LT1765-3.3.pdf
(20 pages)
LT1765/LT1765-1.8/LT1765-2.5/
LT1765-3.3/LT1765-5
4
TYPICAL PERFOR A CE CHARACTERISTICS
1.220
1.215
1.210
1.205
1.200
1.195
1.190
1.185
1.180
–50
FB vs Temperature (Adj)
–25
1.40
1.38
1.36
1.34
1.32
1.30
0
–50
TEMPERATURE ( C)
SHDN Threshold vs Temperature
25
–25
50
0
TEMPERATURE ( C)
75
W
25
100
50
1765 G01
U
125
75
–12
–10
100
–8
–6
–4
–2
0
1765 G04
–50
350
300
250
200
150
100
50
SHDN I
0
125
0
Switch On Voltage Drop
–25
P
Current vs Temperature
0
TEMPERATURE ( C)
SHUTTING DOWN
SWITCH CURRENT (A)
STARTING UP
1
25
50
T
A
= 25 C
75
T
2
A
= 125 C
T
100
A
= –40 C
1765 G06
1765 G02
125
7
6
5
4
3
2
1
0
3
0
SHDN Supply Current vs V
SHDN = 0V
5
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
–50
Oscillator Frequency
10
–25
V
IN
15
(V)
0
TEMPERATURE ( C)
20
25
IN
25
50
1765 G05
30
75
sn1765 1765fas
100
1765 G03
125