Datasheet

LTC3588-1
6
35881fa
TYPICAL PERFORMANCE CHARACTERISTICS
Effi ciency vs V
IN
for
I
LOAD
= 100mA, L = 100μH
Effi ciency vs V
IN
for
V
OUT
= 3.3V, L = 100μH
Effi ciency vs V
IN
for
I
LOAD
= 100mA, L = 10μH
Effi ciency vs V
IN
for
V
OUT
= 3.3V, L = 10μH
V
IN
(V)
EFFICIENCY (%)
35881 G20
100
90
50
60
70
80
40
21086416181412
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 3.6V
V
IN
(V)
EFFICIENCY (%)
35881 G21
95
85
45
55
65
75
35
4108616181412
I
LOAD
= 10μA
I
LOAD
= 30μA
I
LOAD
= 50μA
I
LOAD
= 100μA
I
LOAD
= 100mA
Effi ciency vs I
LOAD
, L = 100μH
LOAD CURRENT (A)
EFFICIENCY (%)
35881 G22
100
90
10
20
30
80
70
60
50
40
0
V
IN
= 5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 3.6V
1µ 10µ 10m 100m1m100µ
V
IN
(V)
EFFICIENCY (%)
35881 G23
100
90
80
70
60
50
40
28641810 12 14 16
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 3.6V
V
IN
(V)
EFFICIENCY (%)
35881 G24
95
85
45
55
65
75
35
4108616181412
I
LOAD
= 10μA
I
LOAD
= 30μA
I
LOAD
= 50μA
I
LOAD
= 100μA
I
LOAD
= 100mA
Effi ciency vs I
LOAD
, L = 10μH
LOAD CURRENT (A)
EFFICIENCY (%)
35881 G19
100
90
30
40
50
60
70
80
20
10
0
1µ 10µ 10m 100m1m100µ
V
IN
= 5V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 3.6V
I
PEAK
vs Temperature
R
DS(ON)
of PMOS/NMOS
vs Temperature
TEMPERATURE (°C)
–55
I
PEAK
(mA)
300
280
250
240
230
210
270
290
220
260
200
25 105–15 65
35881 G16
125585–35 45
TEMPERATURE (°C)
–55
R
DS(ON)
(Ω)
2.0
1.6
1.0
1.4
1.8
1.2
0.8
25 105–15 65
35881 G17
125585–35 45
PMOS
NMOS
Operating Waveforms
5µs/DIV
OUTPUT
VOLTAGE
50mV/DIV
AC-COUPLED
INDUCTOR
CURRENT
200mA/DIV
V
IN
= 5V, V
OUT
= 3.3V
I
LOAD
= 1mA
L = 10µH, C
OUT
= 47µF
SWITCH
VOLTAGE
2V/DIV
0mA
0V
35881 G18