参数资料
型号: LTC3539EDCB-2#TRPBF
厂商: Linear Technology
文件页数: 5/14页
文件大小: 0K
描述: IC REG BOOST SYNC ADJ 2A 8DFN
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 1.5 V ~ 5.25 V
输入电压: 0.5 V ~ 5 V
PWM 型: 电流模式,混合
频率 - 开关: 2MHz
电流 - 输出: 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: 8-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-DFN(3x2)
LTC3539/LTC3539-2
TYPICAL PERFORMANCE CHARACTERISTICS
0.30
R DS(ON) vs V OUT
1.3
R DS(ON) Change vs Temperature
0.50
V FB vs Temperature
0.25
1.2
0.25
0.20
0.15
0.10
PMOS
1.1
1.0
0.9
0
–0.25
–0.50
NMOS
0.05
0.8
–0.75
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0.7
–50
–30
–10
10
30
50
70
90
–1.00
–60 –40 –20
0 20
40
60
80
100
V OUT (V)
3539 G09
TEMPERATURE (°C)
3539 G10
TEMPERATURE (°C)
3539 G11
0.80
0.75
0.70
Start-Up Voltage vs Temperature
1mA LOAD
SW PIN
2V/DIV
V OUT
20mV/DIV
AC-COUPLED
Fixed Frequency SW and I L(AC)
SW PIN
5V/DIV
V OUT
20mV/DIV
AC-COUPLED
Burst Mode SW and I L(AC)
0.65
0.60
0.55
0.50
–50
–25
0
NO LOAD
25
50
75
100
INDUCTOR
CURRENT
500mA/DIV
500ns/DIV
V IN = 2.4V
V OUT = 3.3V AT 400mA
C OUT = 22μF
3539 G13
INDUCTOR
CURRENT
200mA/DIV
V IN = 3.3V
V OUT = 5V
C OUT = 22μF
5μs/DIV
3539 G14
TEMPERATURE (°C)
3539 G12
V OUT
50mV/DIV
AC-COUPLED
LOAD
CURRENT
200mA/DIV
Load Step, Fixed Frequency
V OUT
50mV/DIV
AC-COUPLED
LOAD
CURRENT
200mA/DIV
Load Step, Burst Mode Operation
500μs/DIV
V IN = 2.4V
V OUT = 3.3V
C OUT = 22μF
I LOAD = 100mA TO 250mA STEP
3539 G15
500μs/DIV
V IN = 2.4V
V OUT = 3.3V
C OUT = 22μF
I LOAD = 20mA TO 170mA
3539 G16
35392fb
For more information www.linear.com/3539/3539-2
5
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