Linear Technology Analog Devices LT8708-1, Техническое описание

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LT8708-1
8
Rev 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Output Current
(Boost Region – Page 32)
Efficiency vs Output Current
(Buck Region – Page 32)
Efficiency vs Output Current
(Buck-Boost Region – Page 32)
CSPOUT – CSNOUT Voltages
(ICP = 1.218V, ICN = 0V)
(Five Parts)
CSNOUT – CSPOUT Voltages
(ICP = 1.218V, ICN = 0V)
(Five Parts) IMON_OP Output Current
Maximum and Minimum V
C
vs
ICP_ICN (SS = 0)
Maximum and Minimum V
C
vs SS
(ICP = ICN =0.348V)
Maximum and Minimum V
C
vs SS
(ICP or ICN = 1V)
T
A
= 25°C, unless otherwise noted.
I
OUT
(A)
0.01 0.1 1 10 30
0
10
20
30
40
50
60
70
80
90
100
EFFICIENCY (%)
87081 G01
V
IN
= 11.5V
V
OUT
= 14.5V
HCM
DCM
CCM
I
OUT
(A)
0.01 0.1 1 10 30
0
10
20
30
40
50
60
70
80
90
100
EFFICIENCY (%)
87081 G02
V
IN
= 16V
V
OUT
= 12V
HCM
DCM
CCM
V
IN
= 14.5V
V
OUT
= 14.5V
HCM
DCM
CCM
I
OUT
(A)
0.01 0.1 1 10 30
0
10
20
30
40
50
60
70
80
90
100
EFFICIENCY (%)
87081 G03
V
C
≅ 1.3V
TEMPERATURE (°C)
–50 –30 –10 10 30 50 70 90 110 130 150
20
30
40
50
60
70
80
CSPOUT–CSNOUT VOL
TAGES (mV)
87081 G04
ICP = ICN = 0.348V
CSPOUT–CSNOUT (mV)
–150 –75 0 75 150
–10
30
70
110
150
190
230
IMON_OP CURRENT (µA)
87081 G06
T
J
= 25°C
MAXIMUM V
C
MINIMUM V
C
ICP/ICN VOLTAGE (V)
0 0.25 0.50 0.75 1 1.25
0
0.5
1.0
1.5
2.0
2.5
V
C
(V)
87081 G07
T
J
= 25°C
MAXIMUM V
C
MINIMUM V
C
SS (V)
0 0.5 1 1.5 2
0
0.5
1.0
1.5
2.0
2.5
V
C
(V)
87081 G08
T
J
= 25°C
MAXIMUM V
C
MINIMUM V
C
SS (V)
0 0.25 0.50 0.75 1
0
0.5
1.0
1.5
2.0
2.5
V
C
(V)
87081 G09
V
C
= ~1.3V
TEMPERATURE (°C)
–50 –30 –10 10 30 50 70 90 110 130 150
20
30
40
50
60
70
80
CSNOUT–CSPOUT VOL
TAGES (mV)
87081 G05