Datasheet

LTC3204-3.3/LTC3204-5/
LTC3204B-3.3/LTC3204B-5
5
3204fa
2.7 4.5
3.0
3.3
3.6 3.9 4.2
3204 G18
3204 G21
3204 G233204 G22
3204 G24
3204 G16
3204 G17
SUPPLY VOLTAGE (V)
2.7
OUTPUT LOAD (mA)
3.93.0 3.3 3.6 4.2
500
450
400
350
300
250
200
150
100
50
0
TEMPERA
TURE (°C)
100
0 50
V
IN
= 2.7V
V
OUT
= 4.5V
V
OUT
= 4.8V
LOAD CURRENT (mA)
0
5.20
5.10
5.00
4.90
4.80
4.70
4.60
4.50
300
100 200 400 500
OUTPUT VOLTAGE (V)
V
IN
= 4.2V
V
IN
= 2.7V
V
IN
= 3.6V
SUPPLY VOLTAGE (V)
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
10
0
I
OUT
= 1mA
THEORETICAL MAX
I
OUT
= 10mA
I
OUT
= 100mA
–50
8
7
6
5
4
T
A
= 25°C
T
A
= 90°C
T
A
= –45°C
SUPPLY VOLTAGE (V)
2.7
50
NO-LOAD INPUT CURRENT (µA)
NO-LOAD INPUT CURRENT (mA)
54
58
62
3
3.3
3.6 3.9
3204 G19
4.2
66
70
52
56
60
64
68
0
0.8
1.6
2.4
3.2
4.0
0.4
1.2
2.0
2.8
3.6
4.5
LTC3204B-5
LTC3204-5
LOAD CURRENT (mA)
0.01
0.1
EXCESS INPUT CURRENT (mA)
1
0.01 0.1 1 10 100
3204 G20
10
1000
LTC3204B-5
(N0N-BURST MODE
OPERATION)
LTC3204-5
(BURST-MODE
OPERATION)
V
IN
= 3.6V
Load Regulation
Output Load Capability at 4%
Below Regulation
Effective Open-Loop Output
Resistance vs Temperature
V
OUT
Soft-Start Output Ripple Load Transient Response
No-Load Input Current vs
Supply Voltage Efficiency vs Supply Voltage
Extra Input Current vs Load Current
(I
IN
-2I
LOAD
)
(T
A
= 25°C, C
FLY
= C
IN
= C
OUT
= 2.2µF unless otherwise specified)
(LTC3204-5/LTC3204B-5 ONLY)
V
OUT
50mV/DIV
(AC COUPLED)
I
OUT
100mA
60mA
10µs/DIV
V
OUT
2V/DIV

S

H

D

N
5V/DIV
500µs/DIV
V
OUT
20mV/DIV
(AC COUPLED)
500ns/DIV
V
IN
= 3.6V
I
OUT
= 100mA
V
IN
= 3.6V
I
OUT
= 100mA
V
IN
= 3.6V
I
OUT
= 60mA TO 100mA STEP
TYPICAL PERFOR A CE CHARACTERISTICS
U W