参数资料
型号: LTC3414EFE#PBF
厂商: Linear Technology
文件页数: 4/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A 20TSSOP
标准包装: 74
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,混合
频率 - 开关: 1MHz
电流 - 输出: 4A
同步整流器:
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: 管件
供应商设备封装: 20-TSSOP-EP
产品目录页面: 1334 (CN2011-ZH PDF)
LTC3414
TYPICAL PERFOR A CE CHARACTERISTICS
Efficiency vs Load Current, Burst
Efficiency vs Load Current,
Mode Operation
Forced Continuous
Efficiency vs Load Current
100
95
90
85
80
V IN = 3.3V
V IN = 5V
T A = 25 ° C
100
90
80
70
60
V OUT = 2.5V
T A = 25 ° C
V IN = 3.3V
V IN = 5V
100
95
90
85
80
Burst Mode OPERATION
FORCED
T A = 25 ° C
75
70
65
60
50
40
30
20
75
70
65
60
CONTINUOUS
55
50
0.001
0.01
0.1 1
10
10
0
0.001
0.01
0.1 1
10
55
50
0.001
0.01
V IN = 3.3V
V OUT = 2.5V
0.1 1
10
LOAD CURRENT (A)
Efficiency vs Input Voltage
3414 G10
LOAD CURRENT (A)
Efficiency vs Frequency
3414 G11
LOAD CURRENT (A)
Load Regulation
3414 G12
98
96
94
I OUT = 1A
V OUT = 2.5V
T A = 25 ° C
100
95
L = 1 μ H
V IN = 3.3V
V OUT = 2.5V
T A = 25 ° C
0
–0.05
V IN = 3.3V
V OUT = 2.5V
T A = 25 ° C
92
90
90
L = 0.47 μ H
L = 0.2 μ H
–0.10
88
I OUT = 4A
85
–0.15
86
84
82
80
80
75
–0.20
–0.25
78
2.5
3.0
3.5
4.0 4.5
5.0
5.5
70
300 800 1300 1800 2300 2800 3300 3800
–0.30
0
0.5
1.0
1.5 2.0
2.5
3.0
3.5
4.0
INPUT VOLTAGE (V)
3414 G13
FREQUENCY (kHz)
3414 G14
LOAD CURRENT (A)
3414 G15
Load Step Transient Forced
OUTPUT
VOLTAGE
20mV/DIV
INDUCTOR
CURRENT
500mA/DIV
Burst Mode Operation
OUTPUT
VOLTAGE
100mV/DIV
INDUCTOR
CURRENT
2A/DIV
Continuous
10 μ s/DIV
V IN = 3.3V, V OUT = 2.5V
LOAD = 250mA
3414 G16
20 μ s/DIV
V IN = 3.3V, V OUT = 2.5V
LOAD STEP = 0A TO 4A
3414 G17
3414fb
4
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