LTC3125EDCB#PBF Linear Technology, LTC3125EDCB#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC3125EDCB#PBF
• Description: IC, SYNC STEP-UP DC/DC CONVERTER, DFN-8
• Manufacturer: Linear Technology

Specifications of LTC3125EDCB#PBF

• Primary Input Voltage: 5.5V
• No. Of Outputs: 1
• Output Voltage: 5.25V
• Output Current: 1.2A
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Switching Frequency Max: 1.9MHz
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
0.450
0.400
0.350
0.300
0.250
0.200
0.150
0.100
0.050
–0.25
–0.50
–0.75
–1.00
0.50
0.25
1.5
0
–50
R
Feedback vs Temperature
DS(ON)
NORMALIZED TO 25°C
–30
2
200mA/DIV
CURRENT
vs V
2.5
2V/DIV
5V/DIV
–10
INPUT
SHDN
V
TEMPERATURE (°C)
OUT
OUT
PMOS
NMOS
V
3
10
V
V
C
L = 2.7μH
OUT
V
IN
OUT
OUT
OUT
= 3.3V
(V)
3.5
30
= 4.5V
= 4.4mF
and I
4
50
IN
During Soft-Start
4.5
20ms/DIV
70
3125 G12
3125 G15
5
90
BURST
CURRENT
–0.25
–0.50
–0.75
–1.00
0.50
0.25
240
180
100
220
200
160
140
120
0
–50
–50
3125 G18
R
Current Sense Voltage (V
vs Temperature
V
NORMALIZED TO 25°C
DS(ON)
OUT
–30
–30
= 4V
vs Temperature
–10
–10
TEMPERATURE (°C)
TEMPERATURE (°C)
NMOS
10
10
PMOS
30
30
50
50
200mA/DIV
CURRENT
RPROG
2V/DIV
5V/DIV
INPUT
SHDN
V
70
70
(T
OUT
3125 G13
3125 G15
A
)
V
V
C
L = 2.7μH
V
= 25°C unless otherwise noted)
90
90
IN
OUT
OUT
OUT
= 3.3V
= 4.5V
= 0.47F
and I
16.0
15.5
14.0
13.0
15.0
14.5
13.5
–10
IN
10
–2
–4
–6
–8
8
6
4
2
0
–50
1.5
During Soft-Start
Oscillator Frequency
vs Temperature
Burst Mode Current vs V
NORMALIZED TO 25°C
1s/DIV
2
–25
2.5
TEMPERATURE (°C)
0
3
V
OUT
LTC3125
25
3125 G19
3.5
(V)
50
4
OUT
75
4.5
3125 G14
3125 G17
3125fa
5
100
5