LTC3225EDDB#PBF Linear Technology, LTC3225EDDB#PBF Datasheet - Page 4

• Manufacturer Part Number: LTC3225EDDB#PBF
• Manufacturer: Linear Technology

Specifications of LTC3225EDDB#PBF

• Lead Free Status / Rohs Status: Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
LTC3225/LTC3225-1
(T
4
A
0.94
0.93
0.92
0.91
0.90
0.88
0.89
= 25°C, C
160
140
120
100
80
60
40
20
7
4
2
0
6
5
3
2.5
10
20
I
Extra Input Current vs Output
Current (I
Oscillator Frequency vs
Supply Voltage
OUT
V
CHARGE PUMP IS ON
IN
V
OUT
= 3.6V
40
T
vs R
T
T
A
3
FLY
A
A
20
= 4.5V
= –40°C
= 25°C
= 85°C
PROG
= 1μF , C
60
VIN
3.5
V
OUT
30
R
– 2 • I
V
I
80
PROG
OUT
OUT
V
= 4.2V
IN
V
V
IN
4
= 5V
(mA)
(V)
IN
OUT
(kΩ)
100
= 2.2μF , C
OUT
= 3.6V
40
= 4.5V (LTC3225)
4.5
)
120
V
OUT
50
= 3.7V
140
5
TOP
3225 G07
3225 G01
3225 G04
= C
160
5.5
60
BOT
200mA/DIV
20mV/DIV
, unless otherwise specifi ed)
180
160
140
120
100
80
40
60
I
20
V
30
25
20
15
10
VIN
0
5
0
IN
2.5
0
No-Load Input Current vs
Supply Voltage
I
Input Ripple and Input Current
R
OUT
PROG
0.5
vs V
3
= 12k
1
OUT
1.5
3.5
T
T
T
A
A
A
= –40°C
(R
= 85°C
= 25°C
2
0mA
V
200ns/DIV
OUT
V
PROG
IN
2.5
4
(V)
(V)
3
= 12k)
4.5
3.5
C
TOP
V
V
V
IN
IN
IN
4
= C
= 2.8V
= 3.6V
= 5.5V
5
4.5
3225 G02
3225 G05
BOT
3225 G08
5.5
5
300mA/DIV
500mV/DIV
V
TOP
5V/DIV
2V/DIV
V
SHDN
-V
10.0
COUT
100
9.5
9.0
8.0
7.5
7.0
6.0
I
90
80
70
60
50
40
30
20
8.5
6.5
BOT
10
VIN
0
–40
2.5
Charge Pump Open-Loop Output
Resistance vs Temperature
(2V
Effi ciency vs V
Charging Profi le with Unequal
Initial Output Capacitor Voltage
(Initial V
LTC3225
V
R
C
C
C
V
I
C
SEL
PROG
TOP
TOP
BOT
LOAD
IN
TOP
IN
= 3.6V
= V
= C
INITIAL VOLTAGE = 1.3V
INITIAL VOLTAGE = 1V
= C
3
–15
– V
= 12k
= 100mA
IN
BOT
V
V
BOT
SEL
SEL
TOP
LTC3225-1
COUT
(LTC3225-1)
V
TEMPERATURE (°C)
= 1.1F
3.5
OUT
= V
= 0
= 1.3V, V
10
IN
)/I
= 3.7V
2 SEC/DIV
V
IN
IN
OUT
4
(V)
LTC3225
V
(LTC3225)
35
OUT
BOT
4.5
= 4.5V
= 1V)
60
5
3525 G03
3225 G06
3225 G09
3225fb
5.5
85