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LTC3412AMPFE#PBF
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P20
L
TC3412A
4
3412afe
t
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Efficiency vs Input Voltage
Efficiency vs Frequency
Load Regulation
Burst Mode Operation
Output V
oltage Ripple
Load Step T
ransient Burst Mode
Operation
Efficiency vs Load Current
Efficiency vs Load Current,
Burst Mode Operation
Efficiency vs Load Current,
Forced Continuous Operation
LOAD CURRENT (A)
0.01
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
10
0
0.1
1
10
3412A GO1
Burst Mode
OPERATION
FORCED
CONTINUOUS
V
IN
= 3.3V
V
OUT
= 2.5V
FIGURE 4 CIRCUIT
EFFICIENCY (%)
100
95
90
85
80
75
70
65
60
55
50
LOAD CURRENT (A)
0.01
0.1
1
10
3412A GO2
V
IN
= 3.3V
V
OUT
= 2.5V
FIGURE 4 CIRCUIT
V
IN
= 5V
LOAD CURRENT (A)
0.01
0.1
1
10
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
10
0
3412A GO3
V
OUT
= 2.5V
FIGURE 4 CIRCUIT
V
IN
= 3.3V
V
IN
= 5V
INPUT VOLTAGE (V)
2.5
94
92
90
88
86
84
82
80
4.0
3412A GO4
3.0
3.5
4.5
5.0
EFFICIENCY (%)
0.1A
1A
3A
FIGURE 4 CIRCUIT
3412A GO5
EFFICIENCY (%)
96
95
94
93
92
91
90
89
88
87
FREQUENCY (MHz)
0
4.0
1.0
2.0
3.0
0.5
1.5
2.5
3.5
0.22µH
0.47µH
1µH
FIGURE 4 CIRCUIT
V
IN
= 3.3V
LOAD CURRENT (A)
0
∆V
OUT
/V
OUT
(%)
0
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
0.5
1.0
1.5
2.0
3412A GO6
2.5
3.0
FIGURE 4 CIRCUIT
V
IN
= 3.3V
3412A GO7
5µs/DIV
V
OUT
20mV/DIV
INDUCTOR
CURRENT
1A/DIV
FIGURE 4 CIRCUIT
3412A GO8
5µs/DIV
FORCED
CONTINUOUS
20mV/DIV
PULSE
SKIPPING
20mV/DIV
BURST
MODE
20mV/DIV
V
IN
= 3.3V
V
OUT
= 2.5V
FIGURE 4 CIRCUIT
3412A GO9
40µs/DIV
V
OUT
100mV/DIV
INDUCTOR
CURRENT
2A/DIV
V
IN
= 3.3V
V
OUT
= 2.5V
F = 1MHz
LOAD STEP = 50mA TO 2A
FIGURE 4 CIRCUIT
L
TC3412A
5
3412afe
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Switch On-Resistance
vs Input Voltage
Switch On-Resistance
vs T
emperature
Switch Leakage Current
vs Input Voltage
Frequency vs R
OSC
Frequency vs Input Voltage
Frequency vs T
emperature
Load Step T
ransient Forced
Continuous
Start-Up T
ransient
V
REF
vs T
emperature
INPUT VOLTAGE (V)
2.5
ON-RESISTANCE (mΩ)
100
95
90
85
80
75
70
65
60
55
50
4.5
3412A G13
3.0
3.5
4.0
5.0
PFET
NFET
TEMPERATURE (°C)
ON-RESISTANCE (mΩ)
3412A G14
120
100
80
60
40
20
0
–40
0
40
60
–20
20
80
100
120
PFET
NFET
V
IN
= 3.3V
INPUT VOLTAGE (V)
2.5
SWITCH LEAKAGE CURRENT (nA)
3.0
3.5
4.0
4.5
3412A G15
5.0
50
45
40
35
30
25
20
15
10
5
0
5.5
PFET
NFET
R
OSC
(kΩ)
40
FREQUENCY (kHz)
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
240
440
540
940
3412A G16
140
340
640
740
840
V
IN
= 3.3V
2.5
4.5
3.0
3.5
4.0
5.5
5.0
INPUT VOLTAGE (V)
FREQUENCY (kHz)
1060
1050
1040
1030
1020
1010
1000
990
3412A G17
R
OSC
= 294k
TEMPERATURE (°C)
–40
FREQUENCY (kHz)
1020
1015
1010
1005
1000
995
990
985
980
975
970
0
40
60
3412A G18
–20
20
80
100
120
V
IN
= 3.3V
R
OSC
= 294k
TEMPERATURE (°C)
–45
V
REF
(V)
75
0.7975
0.7970
0.7965
0.7960
0.7955
0.7950
0.7945
0.7940
0.7935
0.7930
3412A G12
–25
–5
15
35
55
95
115
V
IN
= 3.3V
3412A G10
40µs/DIV
V
OUT
100mV/DIV
INDUCTOR
CURRENT
2A/DIV
V
IN
= 3.3V
V
OUT
=2.5V
f = 1MHz
LOAD STEP = 0A TO 3A
FIGURE 4 CIRCUIT
3412A G11
1ms/DIV
V
OUT
2V/DIV
RUN/SS
2V/DIV
INDUCTOR
CURRENT
2A/DIV
V
IN
= 3.3V
V
OUT
=2.5V
LOAD STEP = 2A
FIGURE 4 CIRCUIT
L
TC3412A
6
3412afe
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Minimum Peak Inductor Current
vs Burst Clamp Voltage
Peak Current vs Input Voltage
Quiescent Current
vs Input Voltage
Quiescent Current vs T
emperature
INPUT VOL
T
AGE (V)
QUIESCENT CURRENT (µA)
350
300
250
200
150
100
50
0
3412A G19
2.5
3.0
3.5
4.0
4.5
5.0
5.5
ACTIVE
SLEEP
QUIESCENT CURRENT (µA)
350
300
250
200
150
100
50
0
TEMPERA
TURE (°C)
–40
80
3412A G20
0
40
120
–20
20
60
100
ACTIVE
SLEEP
V
IN
= 3.3V
V
BURST
(V)
0.1
0.2
MAXIMUM PEAK INDUCTOR CURRENT (mA)
0.3
0.5
0.4
0.6
0.7
3412A G21
4000
3500
3000
2500
2000
1500
1000
500
0
INPUT VOLTAGE (V)
2.25
2.75
PEAK INDUCTOR CURRENT (A)
3.25
4.25
3.75
4.75
3412A G22
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P20
LTC3412AMPFE#PBF
Mfr. #:
Buy LTC3412AMPFE#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators High Reliability Temp Range 3A, 4MHz, Monolithic Synchronous Step-Down Regulator in TSSOP-16E
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Ups
TNT
EMS
Payment:
T/T
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