参数资料
型号: LTC3614IUDD#TRPBF
厂商: Linear Technology
文件页数: 6/30页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A 24QFN
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: 0.6 V ~ 5.5 V
输入电压: 2.25 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 300kHz ~ 4MHz
电流 - 输出: 4A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 24-QFN 裸露焊盘(3x5)
LTC3614
TYPICAL PERFORMANCE CHARACTERISTICS V IN = 3.3V, RT/SYNC = SV IN unless otherwise noted.
V OUT
20mV/DIV
I L
500mA/DIV
Forced Continuous Mode Operation
V OUT
100mV/DIV
I LOAD
2A/DIV
Load Step Transient in
Pulse-Skipping Mode
V OUT
100mV/DIV
I LOAD
2A/DIV
Load Step Transient in
Burst Mode Operation
V OUT = 1.8V
I OUT = 100mA
V MODE = 1.5V
1μs/DIV
3614 G10
100μs/DIV
V OUT = 1.8V
I LOAD = 100mA TO 4A, V MODE = 3.3V
COMPENSATION FIGURE 1
3614 G11
100μs/DIV
V OUT = 1.8V
I LOAD = 100mA TO 4A, V MODE = 0V
COMPENSATION FIGURE 1
3614 G12
V OUT
100mV/DIV
I LOAD
2A/DIV
Load Step Transient in Forced
Continuous Mode without AVP Mode
V OUT
100mV/DIV
I LOAD
2A/DIV
Load Step Transient in Forced
Continuous Mode with AVP Mode
V OUT
200mV/DIV
I LOAD
2A/DIV
Load Step Transient in Forced
Continuous Mode Sourcing and
Sinking Current
100μs/DIV
V OUT = 1.8V
I LOAD = 100mA TO 4A, V MODE = 1.5V
COMPENSATION FIGURE 1
3614 G13
100μs/DIV
V OUT = 1.8V
I LOAD = 100mA TO 4A, V MODE = 1.5V
3614 G14
100μs/DIV
V OUT = 1.8V
I LOAD = –3A TO 3A, V MODE = 1.5V
COMPENSATION FIGURE 1
3614 G15
V OUT
100mV/DIV
SW
2V/DIV
I L
2A/DIV
Sinking Current
RUN
10V/DIV
PGOOD
10V/DIV
V OUT
500mV/DIV
I L
2A/DIV
Internal Start-Up in Forced
Continuous Mode
V OUT
1V/DIV
V TRACK/SS
500mV/DIV
PGOOD
2V/DIV
Tracking Up/Down in
Forced Continuous Mode,
Non DDR Mode
1μs/DIV
V OUT = 1.8V
I OUT = –3A, V MODE = 1.5V
3614 G16
500μs/DIV
V OUT = 1.8V
I OUT = 0A, V MODE = 1.5V
3614 G17
2ms/DIV
V OUT = 0V TO 1.8V
I OUT = 3A, V TRACK/SS = 0V TO 0.7V
V MODE = 1.5V, V SRLIM/ DDR = 0V
3614 G18
6
For more information www.linear.com/LTC3614
3614fb
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