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参数资料
| 型号： | LTC3416EFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 20TSSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5 V |
| 输入电压： | 2.25 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 20-TSSOP-EP |
LTC3416
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired. The voltage should never exceed 6.0V for any
pin.
Note 2: The LTC3416E is guaranteed to meet performance specifications
from 0 ° C to 85 ° C. Specifications over the –40 ° C to 85 ° C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: The LTC3416 is tested in a feedback loop that adjusts V FB to
achieve a specified error amplifier output voltage (I TH ).
Note 4: This parameter is guaranteed by design and characterization.
Note 5: Dynamic supply current is higher due to the internal gate charge
being delivered at the switching frequency.
Note 6: T J is calculated from the ambient temperature T A and power
dissipation P D as follows:
LTC3416E: T J = T A + (P D )(38 ° C/W)
Note 7: 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.
TYPICAL PERFOR A CE CHARACTERISTICS
Switch On-Resistance
Switch On-Resistance
V REF vs Temperature, V IN = 3.3V
vs Input Voltage
vs Temperature, V IN = 3.3V
0.800
90
T A = 25 ° C
120
80
0.799
70
60
PFET
100
80
0.798
50
NFET
60
PFET
NFET
40
0.797
30
40
0.796
20
10
20
0.795
–40 –20
0
20
40
60
80 100 120 140
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25
5.75
0
–40 –25 –10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
3416 G01
Switch Leakage vs Input Voltage
INPUT VOLTAGE (V)
Frequency vs R OSC
3416 G02
TEMPERATURE ( ° C)
Frequency vs Input Voltage
3416 G03
20
18
16
T A = 25 ° C
7000
6000
V IN = 3.3V
T A = 25 ° C
1040
1020
R OSC = 294k
T A = 25 ° C
14
5000
1000
12
PFET
4000
980
10
8
3000
960
6
NFET
2000
940
4
2
1000
920
0
2.25
2.75 3.25
3.75
4.25 4.75
5.25
0
25 125 225 325 425 525 625 725 825 925
900
2.25
2.75 3.25
3.75
4.25 4.75
5.25
INPUT VOLTAGE (V)
3416 G04
R OSC (k)
3416 G05
INPUT VOLTAGE (V)
3416 G06
3416fa
3
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