LTC3416 Linear Technology, LTC3416 Datasheet - Page 3

• Manufacturer Part Number: LTC3416
• Description: 4A/ 4MHz/ Monolithic Synchronous Step-Down Regulator
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
Note 4: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 5: T
dissipation P
TYPICAL PERFOR A CE CHARACTERISTICS
0.799
0.798
0.797
0.795
0.800
0.796
LTC3416E: T
20
18
16
14
12
10
8
6
4
2
0
2.25
–40
V
Switch Leakage vs Input Voltage
T
J
REF
A
is calculated from the ambient temperature T
–20
= 25 C
2.75
D
vs Temperature, V
as follows:
NFET
0
J
= T
3.25
TEMPERATURE ( C)
INPUT VOLTAGE (V)
20
A
+ (P
3.75
40
D
)(38 C/W)
60
4.25
80 100 120
IN
4.75
W
= 3.3V
PFET
3416 G01
5.25
3416 G04
U
140
A
7000
6000
5000
4000
3000
2000
1000
and power
90
80
70
60
50
40
30
20
10
0
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25 5.75
25
Switch On-Resistance
vs Input Voltage
Frequency vs R
125
225
325 425
INPUT VOLTAGE (V)
PFET
R
NFET
OSC
OSC
525
Note 6: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125 C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
(k)
625
725
V
T
T
825
IN
A
A
= 25 C
= 25 C
= 3.3V
3416 G02
3416 G05
925
1040
1020
1000
980
960
940
920
900
120
100
80
60
40
20
0
2.25
–40
Switch On-Resistance
vs Temperature, V
Frequency vs Input Voltage
R
T
–25
A
OSC
= 25 C
2.75
–10 5 20 35 50 65 80 95 110 125
= 294k
PFET
3.25
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INPUT VOLTAGE (V)
TEMPERATURE ( C)
3.75
LTC3416
NFET
IN
4.25
= 3.3V
4.75
5.25
3416 G03
3416 G06
3
3416f