参数资料
型号: LT3493EDCB#TRMPBF
厂商: Linear Technology
文件页数: 5/20页
文件大小: 0K
描述: IC REG BUCK ADJ 1.2A 6DFN
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.78 V ~ 34.2 V
输入电压: 3.6 V ~ 36 V
PWM 型: 电流模式
频率 - 开关: 750kHz
电流 - 输出: 1.2A
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: 6-WFDFN 裸露焊盘
包装: 标准包装
供应商设备封装: 6-DFN-EP(2x3)
产品目录页面: 1331 (CN2011-ZH PDF)
其它名称: LT3493EDCB#TRMPBFDKR
LT3493
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C unless otherwise noted.
50
45
40
SHDN Pin Current
7.5
7.0
Typical Minimum Input Voltage
(V OUT = 5V)
TO START
5.5
5.3
5.1
Typical Minimum Input Voltage
(V OUT = 3.3V)
35
30
25
20
15
10
5
6.5
6.0
5.5
TO RUN
4.9
4.7
4.5
4.3
4.1
3.9
3.7
TO RUN
TO START
0
0
2
4
6
8
10 12 14 16 18 20
5.0
1
10
100
1000
3.5
1
10
100
1000
V SHDN (V)
3493 G14
I OUT (mA)
3493 G15
I OUT (mA)
3493 G16
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
Switch Current Limit
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Switch Current Limit
1.0
–50 –25
0
25
50 75
100 125 150
0
0
20
40
60
80
100
V SW
5V/DIV
I L
0.5A/DIV
0
V OUT
20mV/DIV
TEMPERATURE (°C)
Operating Waveforms
3493 G17
V SW
5V/DIV
I L
0.5A/DIV
0
V OUT
20mV/DIV
DUTY CYCLE (%)
Operating Waveforms,
Discontinuous Mode
3493 G18
V IN = 12V
V OUT = 3.3V
I OUT = 0.5A
L = 10μH
1μs/DIV
3493 G19
V IN = 12V
V OUT = 3.3V
I OUT = 50mA
L = 10μH
1μs/DIV
3493 G20
C OUT = 10μF
C OUT = 10μF
3493fb
5
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LT3493IDCB#TRMPBF 功能描述:IC REG BUCK ADJ 1.2A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:1.2V,1.5V,1.8V,2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP,10-MSOP(0.118",3.00mm 宽)裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘