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LTC3412 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC3412
Description  2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3412 Datasheet(HTML) 5 Page - Linear Technology

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LTC3412
5
3412fb
TEMPERATURE (°C)
–40 –20
0
20
40
60
80
100 120
3412 G13
120
110
100
90
80
70
60
50
40
30
20
VIN = 3.3V
PFET ON-RESISTANCE
NFET ON-RESISTANCE
INPUT VOLTAGE (V)
2.5
3
3.5
4
4.5
5
5.5
3412 G14
2.5
2.0
1.5
1.0
0.5
0
MAIN SWITCH
SYNCHRONOUS SWITCH
ROSC (kΩ)
50 150 250 350 450 550 650 750 850 950
3412 G15
4500
4000
3500
3000
2500
2000
1500
1000
500
0
VIN = 3.3V
INPUT VOLTAGE (V)
2.5
3
3.5
4
4.5
5
5.5
3412 G16
1050
1040
1030
1020
1010
1000
990
R = 309k
TEMPERATURE (°C)
–40 –20
0
20
40
60
80
100 120
3412 G17
1010
1008
1006
1004
1002
1000
998
996
994
992
990
VIN = 3.3V
INPUT VOLTAGE (V)
2.5
3
3.5
4
4.5
5
5.5
3412 G18
350
300
250
200
150
100
50
SLEEP
ACTIVE
TYPICAL PERFOR A CE CHARACTERISTICS
Switch On-Resistance
vs Temperature
Switch Leakage vs Input Voltage
Frequency vs ROSC
Frequency vs Input Voltage
Switching Frequency
vs Temperature
DC Supply Current
vs Input Voltage
350
300
250
200
150
100
50
0
TEMPERATURE (°C)
–40 –20
0
20
40
60
80
100 120
3412 G19
VIN = 3.3V
ACTIVE
SLEEP
BURST CLAMP VOLTAGE (V)
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
3412 G20
4000
3500
3000
2500
2000
1500
1000
500
0
VIN = 3.3V
DC Supply Current vs Temperature
Minimum Peak Inductor Current
vs Burst Clamp Voltage
INPUT VOLTAGE (V)
2.75
6.8
6.6
6.4
6.2
6.0
5.8
5.6
5.4
4.25
5.25
3412 G21
3.25
3.75
4.75
Current Limit vs Input Voltage



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