LTC3026 LINER [Linear Technology], LTC3026 Datasheet - Page 5

• Manufacturer Part Number: LTC3026
• Description: 1.5A Low Input Voltage VLDO Linear Regulator
• Manufacturer: LINER [Linear Technology]

10mV/DIV
TYPICAL PERFOR A CE CHARACTERISTICS
V
IN
1200
900
600
300
400
375
350
325
300
275
250
V
1.5V
OUT
AC
2V
1.0
1
Delay from Enable to PG with
Boost Disabled
Shutdown Threshold
IN Supply Transient Response
V
I
C
V
T
OUT
A
1.5
OUT
OUT
BST
= 25°C
= 800mA
= 5V
= 1.2V
= 10µF
2
2.0
2.5
3
3.0 3.5
V
V
IN
IN
10µs/DIV
(V)
(V)
4
4.0 4.5 5.0
V
R
OUT
OUT
W
5
– 40°C
= 0.8V
– 40°C
125°C
= 8Ω
25°C
85°C
25°C
3026 G10
3026 G13
RISE
RISE
FALL
FALL
RISE
FALL
3026 G16
U
5.5
6
SHDN
OUT
BST
1.5V
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
LO
5V
HI
1V
0V
0
1.0
1.0
Delay from Enable to PG with
Boost Enabled
BST/OUT Startup
Output Current Limit
T
R
V
CURRENT LIMIT
A
IN
OUT
= 25°C
= 1.7V
= 1Ω
1.5
1.5
2.0
2.0
200µs/DIV
V
V
IN
IN
(V)
(V)
2.5
2.5
THERMAL LIMIT
V
R
OUT
V
OUT
T
3.0
3.0
OUT
A
– 40°C
= 0.8V
= 25°C
= 8Ω
25°C
85°C
= 0V
3026 G17
3026 G11
3026 G14
3.5
3.5
AC 20mV/DIV
AC 20mV/DIV
AC 5mV/DIV
I
OUT
V
2mA
V
1.5A
OUT
2.22
2.20
2.18
2.16
2.14
2.12
2.10
2.08
2.06
2.04
2.02
OUT
BST
–50
BST to OUT Headroom Voltage
V
C
V
V
V
V
I
C
L
T
BST Ripple and Feedthrough
to OUT
Output Load Transient Response
OUT
OUT
OUT
IN
BST
SW
A
OUT
IN
OUT
= 25°C
= 1.7V
= 1.5V
–25
= 10µH
= 1A
= 5V
= 1.5V
= 10µF
= 1.2V
= 10µF
0
TEMPERATURE (°C)
100µs/DIV
25
20µs/DIV
LTC3026
50
75
100
3026 G15
3026 G12
3026 G18
5
3026f
125