参数资料
型号: LTC3203EDD#PBF
厂商: Linear Technology
文件页数: 5/16页
文件大小: 0K
描述: IC REG BST SWITCHD CAP ADJ 10DFN
标准包装: 121
类型: 升压(升压),切换电容(充电泵)
输出类型: 可调式
输出数: 1
输出电压: 可调
输入电压: 2.7 V ~ 5.5 V
PWM 型: Burst Mode?
频率 - 开关: 900kHz,1MHz
电流 - 输出: 500mA
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: 10-WFDFN 裸露焊盘
包装: 管件
供应商设备封装: 10-DFN(3x3)
LTC3203/LTC3203-1
LTC3203B/LTC3203B-1
TYPICAL PERFOR A CE CHARACTERISTICS
Burst Mode Current Threshold
160
No-Load Input Current vs Supply
Voltage (LTC3203/LTC3203-1)
500
vs Supply Voltage
(LTC3203/LTC3203-1)
100
Extra Input Current vs Load
Current (LTC3203/LTC3203-1)
140
2x MODE
450
120
100
80
1.5x MODE
400
350
300
250
10
1
2x MODE
I IN – 2 ? I LOAD
60
40
20
200
150
100
50
1.5x MODE
2x MODE
0.1
1.5x MODE
I IN – 1.5 ? I LOAD
0
2.5
3
3.5
4
4.5
5
5.5
0
2.5
3
3.5
4
4.5
5
5.5
0.01
0.01
0.1
1 10
100
1000
V IN
20mV/DIV
AC-COUPLED
V IN (V)
Input and Output Ripple
(1.5x Mode)
3203 G10
V IN
20mV/DIV
AC-COUPLED
V IN (V)
Input and Output Ripple
(2x Mode)
3203 G11
V OUT
100mV/DIV
AC-COUPLED
I LOAD (mA)
Load Transient (1.5x Mode)
3209 G12
V OUT
20mV/DIV
AC-COUPLED
V OUT
20mV/DIV
AC-COUPLED
I OUT
500mA
100mA
V IN = 4V
C IN = 2.2 μ F
C OUT = 10 μ F
I OUT = 300mA
1.5x MODE
500ns/DIV
3203 G13
V IN = 3.6V
C IN = 2.2 μ F
C OUT = 10 μ F
I OUT = 300mA
2x MODE
500ns/DIV
3203 G14
V IN = 4V
C IN = 2.2 μ F
C OUT = 10 μ F
1.5x MODE
20 μ s/DIV
3203 G15
V OUT
100mV/DIV
Load Transient (2x Mode)
0.94
0.93
V FB Set Point vs Supply Voltage
(LTC3203/LTC3203B)
0.96
0.94
V FB vs Load Current
(LTC3203/LTC3202B)
AC-COUPLED
0.92
T A = –40 ° C
T A = 25 ° C
0.92
0.90
V IN = 4V
1.5x MODE
I OUT
500mA
100mA
0.91
0.90
T A = 85 ° C
0.88
0.86
V IN = 3.6V
2x MODE
V IN = 3.6V
C IN = 2.2 μ F
C OUT = 10 μ F
2x MODE
20 μ s/DIV
3203 G16
0.89
0.88
2.5
3
3.5
4
4.5
5
5.5
0.84
0.82
0 50 100 150 200 250 300 350 400 450 500
V IN (V)
3203 G17
I LOAD (mA)
3203 G18
32031fa
5
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