Datasheet

LT8582
32
8582f
TYPICAL APPLICATIONS
Tracking ±15V Supplies from a 2.7V to 5.5V Input
15V and –15V Outputs vs Load Current
(V
IN
= 3.6V, Load on 15V Output)
15V and –15V Outputs vs Load Current
(V
IN
= 3.6V, Load Between 15V and –15V Outputs)
15V and –15V Outputs vs Load Current
(V
IN
= 3.6V, Load on –15V Output)
Efficiency and Power Loss
(V
IN
= 3.6V with Load Between 15V and –15V Outputs)
LOAD CURRENT (A)
0
20
EFFICIENCY (%)
POWER LOSS (W)
80
70
60
50
0.1
0.15
8582 TA04b
40
30
0.05
0.2 0.25 0.3 0.35
0.4
100
90
0
0.4
2.4
2.8
1.6
2.0
0.8
1.2
3.2
LOAD CURRENT (A)
0
14.90
MAGNITUDE V
OUT
(V)
15.20
15.15
15.10
15.05
0.1
0.15
8582 TA04c
15.10
14.95
0.05
0.2 0.25 0.3 0.35
0.450.4
15.30
15.25
15V
–15V
LOAD CURRENT (A)
0
14.90
MAGNITUDE V
OUT
(V)
15.20
15.15
15.10
15.05
0.1
0.15
8582 TA04d
15.00
14.95
0.05
0.2 0.25 0.3 0.35
0.4
15.30
15.25
15V
–15V
LOAD CURRENT (A)
0
14.90
MAGNITUDE V
OUT
(V)
15.20
15.15
15.10
15.05
0.1
0.15
8582 TA04e
15.10
14.95
0.05
0.2 0.25 0.3 0.35
0.4
15.30
15.25
15V
–15V
SWB2
SWA2
SWB1
SWA1
LT8582
8582 TA04a
PG1
SYNC1
CLKOUT1
CLKOUT2
100k
SYNC2
PG2
V
IN2
SHDN2
V
IN1
SHDN1
V
C1
SS1
RT1
GND
RT2
SS2
GATE2
V
C2
FBX2
FBX1
GATE1
V
OUT1
15V
0.3A(V
IN
= 2.7V)
0.42A(V
IN
= 3.6V)
0.56A(V
IN
= 4.5V)
0.69A(V
IN
= 5.5V)
V
OUT2
–15V
0.27A(V
IN
= 2.7V)
0.37A(V
IN
= 3.6V)
0.46A(V
IN
= 4.5V)
0.54A(V
IN
= 5.5V)
C1
4.7µF
V
IN
2.7V TO 5.5V
0.1µF
0.1µF
6.8nF
100pF
100pF
6.65k
6.65k
53.6k
L2
15µH
s
L1
10µH
6.8nF
6.04k
FBX2
C
OUT2
10µF
×2
C
OUT1
10µF
×2
49.9k
107k
107k
C
IN2
10µF
C
IN1
, C
IN2
: 10µF, 16V, X7R, 1206
C
OUT1
, C
OUT2
: 10µF, 25V, X7R, 1210
C1: 4.7µF, 50V, X7R, 1206
D1, D2: DIODES INC. PD3S230H
L1: COILCRAFT XAL6060-103ME
L2, L3: COILCRAFT MSD1260-153
D1
C
IN1
10µF
D2
L3
15µH
s