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LTC3619EMSE#TRPBF
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P22
L
TC3619
4
3619fa
Typical
perForMance
characTerisTics
T
A
= 25°C, V
IN
= 5V, unless other
wise noted.
Burst Mode Operation
Efficiency vs Input Voltage
(Channel 2)
Regulated Voltage
vs T
emperature
Oscillator Frequency
vs T
emperature
Supply Current vs T
emperature
Switch Leakage vs Input Voltage
Switch On-Resistance
vs Input Voltage
Switch On-Resistance
vs T
emperature
2µs/DIV
SW
2V/DIV
V
OUT
100mV/DIV
AC-
COUPLED
I
L
100mA/DIV
3619 G01
V
IN
= 5V
V
OUT
= 3.3V
I
LOAD
= 25mA
TEMPERA
TURE (°C)
–50
0
SUPPLY CURRENT (µA)
20
40
60
80
100
–25
25
0
50
75
3619 G02
100
125
V
IN
= 5V
V
IN
= 2.7V
I
LOAD
= 0
RUN1 = RUN2 = V
IN
INPUT VOL
T
AGE (V)
3.5
30
EFFICIENCY (%)
40
50
60
80
90
70
100
4
4.5
3619 G02
5
5.5
V
OUT
= 3.3V
I
OUT
= 1mA
I
OUT
= 10mA
I
OUT
= 100mA
I
OUT
= 800mA
TEMPERA
TURE (°C)
–50
–1.5
V
FB
ERROR (%)
–1.0
–0.5
0
1.0
0.5
1.5
50
25
0
–25
75
3619 G04
100
125
TEMPERA
TURE (°C)
–50
1.8
FREQUENCY (MHz)
1.9
2.0
2.1
2.3
2.4
2.2
2.5
–25
75
50
25
0
3619 G05
100
125
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
V
IN
(V)
2.5
0
LEAKAGE CURRENT (pA)
200
400
600
800
1000
4.5
4
3.5
3
3619 G06
5
MAIN SWITCH
SYNCHRONOUS SWITCH
5.5
CHANNEL 1
CHANNEL 2
V
IN
(V)
2.5
0.20
R
DS(ON)
(Ω)
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
4.5
4
3.5
3
3619 G07
5
5.5
MAIN SWITCH
SYNCHRONOUS SWITCH
6
CHANNEL 1
CHANNEL 2
TEMPERA
TURE (°C)
–50
0.2
R
DS(ON)
(Ω)
0.3
0.4
0.5
0.6
0.7
0.8
50
25
0
–25
3619 G08
75
100
CHANNEL 1
SYNCHRONOUS SWITCH
125
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 5V
MAIN SWITCH
Switch On-Resistance
vs T
emperature
TEMPERA
TURE (°C)
–50
–0.1
PFET R
DS(ON)
(Ω)
NFET R
DS(ON)
(Ω)
0
0.1
0.2
0.3
0.4
0.5
0.1
0.2
0.3
0.4
0.5
0.6
0.7
50
25
0
–25
3619 G09
75
100
CHANNEL 2
(NFET)
SYNCHRONOUS SWITCH
125
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 5V
(PFET)
MAIN SWITCH
L
TC3619
5
3619fa
Typical
perForMance
characTerisTics
T
A
= 25°C, V
IN
= 5V, unless other
wise noted.
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Efficiency vs Load Current
Load Regulation (Channel 1)
Load Regulation (Channel 2)
Line Regulation
OUTPUT CURRENT (A)
0.0001
0
EFFICIENCY (%)
10
20
30
40
80
70
60
50
90
100
0.01
0.001
3619 G10
0.1
V
OUT
= 3.3V
CHANNEL 1
1
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
OUTPUT CURRENT (A)
0.0001
0
EFFICIENCY (%)
10
20
30
40
80
70
60
50
90
100
0.01
0.001
3619 G11
0.1
V
OUT
= 3.3V
CHANNEL 2
1
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
OUTPUT CURRENT (A)
0.0001
0
EFFICIENCY (%)
10
20
30
40
80
70
60
50
90
100
0.01
0.001
3619 G12
0.1
V
OUT
= 1.2V
CHANNEL 1
1
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
OUTPUT CURRENT (A)
0.0001
0
EFFICIENCY (%)
10
20
30
40
80
70
60
50
90
100
0.01
0.001
3619 G13
0.1
V
OUT
= 1.2V
CHANNEL 2
1
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
LOAD CURRENT (mA)
0
–2.0
V
OUT
ERROR (%)
–1.0
–1.5
–0.5
0
1.0
0.5
2.0
1.5
300
200
100
3619 G14
400
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
LOAD CURRENT (mA)
0
–2.0
V
OUT
ERROR (%)
–1.0
–1.5
–0.5
0
1.0
0.5
2.0
1.5
600
400
200
3619 G15
800
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
IN
(V)
2.5
–0.6
V
OUT
ERROR (%)
–0.2
–0.4
0
0.4
0.2
0.6
5.0
4.5
4.0
3.5
3.0
3619 G16
5.5
V
OUT
= 1.8V
I
LOAD
= 100mA
L
TC3619
6
3619fa
Typical
perForMance
characTerisTics
T
A
= 25°C, V
IN
= 5V, unless other
wise noted.
A
verage Input Current Limit
vs T
emperature
Load Step (Channel 1)
Load Step (Channel 1)
TEMPERA
TURE (°C)
–50
–8
I
INLIM
ERROR (%)
–4
–2
–6
0
6
4
2
8
75
100
50
25
0
–25
3619 G19
125
V
IN
= 5V
I
LIM
= 475mA
20µs/DIV
V
OUT
200mV/DIV
AC-COUPLED
I
L
500mA/DIV
I
LOAD
500mA/DIV
3619 G20
V
IN
= 5V,V
OUT
= 3.3V
I
LOAD
= 0A TO 400mA
C
L
= 4.7µF
20µs/DIV
V
OUT
200mV/DIV
AC-COUPLED
I
L
500mA/DIV
I
OUT
500mA/DIV
3619 G21
V
IN
= 5V, V
OUT
= 3.3V
I
LOAD
= 40mA TO 400mA
C
L
= 4.7µF
Start-Up from Shutdown
Start-Up from Shutdown
(Channel 2)
200µs/DIV
RUN
2V/DIV
V
OUT
1V/DIV
I
L
500mA/DIV
3619 G17
V
IN
= 5V, V
OUT
= 3.3V
R
LOAD
= 7Ω
C
LOAD
= 4.7µF
2ms/DIV
RUN
2V/DIV
V
OUT
1V/DIV
R
LIM
1V/DIV
I
IN
500mA/DIV
3619 G18
V
IN
= 5V, V
OUT
= 3.4V
R
L
= NO LOAD, C
L
= 4.4mF
C
LIM
= 2200pF, I
LIM
= 500mA
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P22
LTC3619EMSE#TRPBF
Mfr. #:
Buy LTC3619EMSE#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 400mA/800mA Synchronous Step-Down DC/DC Converter with Average Input Current Limit
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
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