ltm4615 Linear Technology Corporation, ltm4615 Datasheet - Page 6

• Manufacturer Part Number: ltm4615
• Description: Triple Output, Low Voltage Dc/dc ?module Regulator
• Manufacturer: Linear Technology Corporation

LTM4615
TYPICAL PERFORMANCE CHARACTERISTICS
VLDO
6
1V/DIV
1A/DIV
V
404
403
402
401
400
399
398
397
396
1.4
1.2
0.8
0.6
0.4
OUT
1.6
1.0
0.2
I
0
IN
–50
3
Start-Up
Current Limit Foldback
V
V
V
C
NO LOAD
(0.01μF SOFT-START CAPACITOR)
V
IN
OUT
OUT
FB3
OUT
= 5V
–25
= 2.5V
= 100μF
= 1.5V
vs Temperature
V
V
V
4
IN
IN
IN
= 5V
= 3.3V
= 2.5V
OUTPUT CURRENT (A)
0
TEMPERATURE (°C)
5
25
200μs/DIV
50
6
V
V
V
BOOST3
LDO_IN
LDO_OUT
75
7
100
= 1.5V
= 5V
=1.2V
1.5A
4615 G13
1mA
4615 G10
4615 G16
125
8
0.5V/DIV
1V/DIV
1A/DIV
4A/DIV
V
V
200
180
160
140
120
100
OUT
OUT
80
60
40
20
I
I
IN
IN
0
1.2
Start-Up
Short-Circuit Protection
1.5V Short, No Load
Dropout Voltage vs Input Voltage
V
V
C
4A LOAD
(0.01μF SOFT-START CAPACITOR)
V
I
IN
OUT
OUT
LDO_OUT
FB3
= 5V
1.4
= 2.5V
= 100μF
= 0.38V
=1.5A
1.6
V
1.8
200μs/DIV
LDO_IN
20μs/DIV
2.0
(V)
2.2
–40°C
125°C
2.4
25°C
85°C
4615 G11
4615 G14
4615 G17
2.6
0.5V/DIV
1A/DIV
V
806
804
802
800
798
796
794
OUT
60
50
40
30
20
10
I
IN
0
–50
1.2
V
Short-Circuit Protection
1.5V Short, 4A Load
Ripple Rejection
FB
1.4
–25
vs Temperature
1.6
0
TEMPERATURE (°C)
V
1.8
100μs/DIV
25
LDO_IN
100kHz
10kHz
1MHz
2.0
50
(V)
V
V
I
C
OUT
BOOST3
LDO_OUT
OUT
2.2
75
= 800mA
= 10μF
100
2.4
= 5V
=1.2V
4615 G12
4615 G15
4615 G18
4615f
125
2.6