LTC1682-3.3 LINER [Linear Technology], LTC1682-3.3 Datasheet - Page 4

• Manufacturer Part Number: LTC1682-3.3
• Description: Doubler Charge Pumps with Low Noise Linear Regulator
• Manufacturer: LINER [Linear Technology]

LTC1682/LTC1682-3.3/LTC1682-5
TYPICAL PERFOR A CE CHARACTERISTICS
200 V/DIV
4
V
OUT
35
30
25
20
15
10
5
1.5
C
I
V
CPO Output Resistance vs V
LTC1682-5 Output Noise
(BW = 10Hz to 2.5MHz)
OUT
CPO
IN
= 3V
= 10mA
= C
2.0
OUT
= 4.7 F
2.5
565
560
555
550
545
540
535
530
–50
100 s/DIV
V
Oscillator Frequency vs
Temperature
IN
3.0
V
IN
(V)
–25
V
T
C
= 3V
A
OUT
FILT
= 25 C
3.5
= 5V
= 1nF
W
T
C1 = 0.22 F
I
0
OUT
TEMPERATURE ( C)
A
= 25 C
= 10mA
4.0
IN
25
U
1682 G01
1682 G04
50
4.5
75
100
9
8
7
6
5
4
3
2
0
4
3
2
1
0
1682 G07
1.5
(A) THE MAXIMUM GENERATED NO LOAD
(B) THE MINIMUM ALLOWABLE CPO VOLTAGE,
Min and Max V
Shutdown to Enable Timing
125
T
T
V
V
I
C
OUT
A
CPO VOLTAGE
AT FULL LOAD, TO ENSURE THAT THE LDO
IS NOT DISABLED
A
IN
OUT
CPO
= 25 C
= 25 C
2.0
= 3V
= 10mA
= 4V
= C
OUT
2.5
V
CPO
= 10 F
200 s/DIV
(A)
= 2(V
V
CPO
IN
3.0
(V)
IN
V
vs V
CPO
)
(B)
3.5
220
200
180
160
140
120
100
= 1.45(V
IN
80
60
1.5
Operating Current vs V
(No Load)
4.0
T
IN
A
)
= 25 C
1682 G05
2.0
1682 G02
LTC1682-3.3
4.5
LTC1682-5
2.5
V
–10
IN
3.0
–5
10
15
10
(V)
5
0
5
0
2
0
4
3
2
1
0
0
Enable to Shutdown Timing
V
OUT
T
V
V
C
LTC1682
A
NO LOAD
T
V
V
C
3.5
IN
OUT
OUT
A
IN
OUT
OUT
IN
= 25 C
= 3V
= 25 C
50
= 3V
Transient Response
= 4V
= 10 F
= 4V
= 10 F
4.0
100
1682 G08
TIME ( s)
4.5
1ms/DIV
150
200
250
1682 G02
1682 G06
300