Datasheet
LTC3867
6
3867f
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current vs Temperature Pre-Bias Start-Up
Coincident Tracking Master Supply
Quiescent Current vs Input
Voltage without EXTV
CC
INTV
CC
Line Regulation
Load Step-Up (0A to 15A, 15A/µs)
(Nonlinear Operation)
Efficiency and Output Current
and Mode
Load Step-Up (0A to 15A, 15A/µs)
(Normal Operation) Overcurrent Recovery
INPUT VOLTAGE (V)
4
2.50
SUPPLY CURRENT (mA)
2.75
3.00
3.25
3.50
8 12 16 20
3867 G07
24 28 32 36 40
INPUT VOLTAGE (V)
0 5 10
2.0
INTV
CC
VOLTAGE (V)
2.5
3.0
3.5
30 35 40
5.5
3867 G08
15 20 25 45
4.0
4.5
5.0
200µs/DIV
V
OUT
500mV/DIV
I
OUT
10A/DIV
3867 G03
V
OUT
200mV/DIV
TRACK/SS
500mV/DIV
10ms/DIV
3867 G05
MASTER
SUPPLY
500mV/DIV
V
OUT
500mV/DIV
10ms/DIV
3867 G06
TEMPERATURE (°C)
–50
2.5
QUIESCENT CURRENT (mA)
3.0
3.5
4.0
4.5
–25 0 25 50
3867 G04
75 100 125
5µs/DIV
V
OUT
50mV/DIV
SW
5V/DIV
3867 G01
97.5mV
5µs/DIV
V
OUT
50mV/DIV
SW
5V/DIV
3867 G02
137.5mV
LOAD CURRENT (A)
30
EFFICIENCY (%)
POWER LOSS (W)
90
100
20
10
80
50
70
60
40
0.01 0.1 1 10 100
3867 G21
0
1.5
4.0
1.0
0.5
2.5
3.5
3.0
2.0
0
Burst Mode OPERATION
DCM
CCM
V
IN
= 12V
V
OUT
= 1.5V