参数资料
型号: LTC1928ES6-5#TR
厂商: Linear Technology
文件页数: 3/8页
文件大小: 0K
描述: IC REG SWITCHED CAP DBL SOT23-6
标准包装: 2,500
类型: 切换式电容器(充电泵),倍增器
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 2.7 V ~ 4.4 V
PWM 型: Burst Mode?
频率 - 开关: 550kHz
电流 - 输出: 30mA
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: SOT-23-6 细型,TSOT-23-6
包装: 带卷 (TR)
供应商设备封装: TSOT-23-6
LTC1928-5
ELECTRICAL CHARACTERISTICS
Note 4: Operating conditions are limited by maximum junction
temperature. The regulated output specification will not apply for all
possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range may be
limited. When operating at maximum output current, the input voltage
range may be limited.
Note 5: CN/SHDN must be driven with a source impedance of at least
100 ? (R SOURCE ) to prevent damage to the part. This pin is multiplexed
and may be connected through a low switch impedance to V IN . There may
be a large amount of current (V IN /R SOURCE ) until the shutdown state
occurs after which the charge pump switches at CN/SHDN become high
impedance and the current will fall to < 8 μ A.
TYPICAL PERFOR A CE CHARACTERISTICS
CPO Output Resistance vs V IN
Min and Max V CPO vs V IN
V OUT Transient Response
T A = 25 ° C
35
C FLY = 0.47 μ F
30 I OUT = 10mA
9
8
T A = 25 ° C
10
5
25
20
15
7
6
5
V CPO = 2(V IN )
(A)
(B)
V CPO = 1.45(V IN )
0
–5
–10
15
T A = 25 ° C
V IN = 3V
V OUT = 5V
C OUT = 4.7 μ F
4
10
10
3
5
5
2.5
3.0
3.5
4.0
4.5
2.5
3.0
3.5
4.0
4.5
0
0
50
100
150
200
250
300
V IN (V)
Shutdown to Enable Timing
(Figure 5)
19285 G01
V IN (V)
(A) THE MAXIMUM GENERATED NO LOAD
CPO VOLTAGE
(B) THE MINIMUM ALLOWABLE CPO VOLTAGE,
AT FULL LOAD, TO ENSURE THAT THE LDO
IS NOT DISABLED
19285 G02
Enable to Shutdown Timing
(Figure 5)
5.040
TIME ( μ s)
V OUT Voltage vs Temperature
19285 G03
2
0
5
4
2
0
5
4
5.030
5.020
5.010
V IN = 3V
I OUT = 10mA
3
2
1
0
T A = 25 ° C
V IN = 3V
V OUT = 5V
I OUT = 10mA
C OUT = C CPO = 4.7 μ F
200 μ s/DIV
3
2
1
0
NO LOAD
T A = 25 ° C
V IN = 3V
V OUT = 5V
C OUT = 4.7 μ F
1ms/DIV
5.000
4.990
4.980
–50 –25
0
25
50
75
100
125
TEMPERATURE ( ° C)
19285 G04
19285 G05
19285 G06
3
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