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ManualsBrandsLINEAR TECHNOLOGY ManualsPMICsPMIC - voltage regulator - special purpose TSSOP 38 EP
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LTC3816
9
3816f
Typical perForMance characTerisTics
Duty Cycle vs V
COMP
without Line
Feedforward V
RPTC
vs Temperaturef
OSC
vs Temperature
TEMPERATURE (°C)
–50
f
OSC
(kHz)
500
600
700
25 75
3816 G26
400
300
–25 0
50 100 125
200
100
V
RFREQ
= 2.5V
V
RFREQ
= 0V
RFREQ FLOATS
TEMPERATURE (°C)
–50
V
RPTC
POSITIVE THRESHOLD (mV)
V
RPTC
NEGATIVE THRESHOLD (mV)
470
475
480
25 75
3816 G27
465
460
–25 0
50 100 125
455
450
110
115
120
105
100
95
90
V
RPTC
POSITIVE THRESHOLD
V
RPTC
NEGATIVE THRESHOLD
INTV
CC
Line Regulation INTV
CC
Dropout vs TemperatureINTV
CC
Load Regulation
TEMPERATURE (°C)
–50
I
RFREQ
, I
IMAX
(µA)
I
RPTC
(µA)
10.50
11.00
11.50
10.75
11.25
25 75
3816 G28
10.25
10.00
–25 0
50 100 125
9.75
9.50
95.0
100.0
105.0
I
RPTC
97.5
102.5
92.5
90.0
87.5
85.0
I
RFREQ
, I
IMAX
TEMPERATURE (°C)
–50
0.5
VR
ON
THRESHOLD (V)
0.6
0.8
0.9
1.0
50
1.4
3816 G29
0.7
0
–25
75 100
25 125
1.1
1.2
1.3
VR
ON
RAMPS HIGH,
REGULATOR ON THRESHOLD
VR
ON
RAMPS LOW,
REGULATOR OFF THRESHOLD
VR
ON
RAMPS HIGH,
POWER-UP THRESHOLD
VR
ON
RAMPS LOW,
POWER-DOWN THRESHOLD
TEMPERATURE (°C)
–50
3.8
3.9
4.1
25 75
3816 G30
3.7
3.6
–25 0
50 100 125
3.5
3.4
4.0
INTV
CC
UVLO (V)
V
EXTVCC
= 0V
V
IN
RAMPS HIGH
V
IN
RAMPS LOW
I
IMAX
, I
RFREQ
and I
RPTC
vs Temperature INTV
CC
UVLO vs TemperatureVR
ON
vs Temperature
V
IN
(V)
0
V
INTVCC
(V)
4.8
5.0
5.2
30
3816 G31
4.6
4.4
10 20
5 35
15 25 40
4.2
4.0
5.4
V
EXTVCC
= 0V
I
LOAD
(mA)
0
∆INTV
CC
WITH V
IN
= 12V (mV)
∆INTV
CC
WITH V
IN
= 5V (mV)
–20
–10
40
3816 G32
–30
–40
10
20
30
50
0
–600
–300
–900
–1200
0
V
EXTVCC
= 0V
f
OSC
= 400kHz
V
IN
= 12V
V
IN
= 5V