LTC3412 LINER [Linear Technology], LTC3412 Datasheet - Page 4

• Manufacturer Part Number: LTC3412
• Description: 2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

LTC3412
TYPICAL PERFOR A CE CHARACTERISTICS
4
98
96
94
92
90
88
86
Start-Up, Burst Mode Operation
2.55
Burst Mode Operation
V
LOAD = 1Ω
V
LOAD = 50mA
IN
Efficiency vs Input Voltage
IN
V
1MHz
Burst Mode OPERATION
= 3.3V, V
= 3.3V, V
LOAD = 100mA
OUT
3.05
LOAD = 2.5A
= 2.5V
OUT
OUT
INPUT VOLTAGE (V)
3.55
= 2.5V
= 2.5V
1ms/DIV
4μs/DIV
4.05
LOAD = 1A
4.55
W
5.05
3412 G10
3412 G07
3412 G04
U
0.7960
0.7955
0.7950
0.7945
0.7940
0.7935
0.7930
0.7925
0.7920
97
96
95
94
93
92
91
300
–45 –25 –5
Efficiency vs Frequency
Load Step Transient Forced
Continuous
Reference Voltage
vs Temperature
V
LOAD STEP = NO LOAD TO 2.5A
V
V
LOAD = 1A
Burst Mode OPERATION
V
IN
IN
OUT
IN
800 1300 1800 2300 2800 3300 3800
= 3.3V, V
= 3.3V
= 3.3V
= 2.5V
0.47μH
OUT
TEMPERATURE (°C)
FREQUENCY (kHz)
15
2.2μH
= 2.5V
20μs/DIV
35
1μH
55
75
95 115 120
3412 G05
3412 G08
3412 G11
–0.02
–0.04
–0.06
–0.08
–0.10
–0.12
–0.14
–0.16
–0.18
0.02
0.00
120
100
80
60
40
20
0
2.5
Load Regulation
0
Switch On-Resistance
vs Input Voltage
Load Step Transient Burst Mode
Operation
V
LOAD STEP = 50mA TO 2.5A
IN
= 3.3V, V
0.5
3
PFET ON-RESISTANCE
NFET ON-RESISTANCE
INPUT VOLTAGE (V)
LOAD CURRENT (A)
OUT
3.5
= 2.5V
1
20μs/DIV
1.5
4
V
V
IN
OUT
4.5
2
= 3.3V
= 2.5V
3412 G12
3412 G06
3412 G09
3412fb
2.5
5