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| 型号： | LTC1046IS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHD CAP DIV INV 8SOIC |
| 标准包装： | 100 |
| 类型： | 切换式电容器（充电泵），分配器，反相 |
| 输出数： | 1 |
| 输入电压： | 1.5 V ~ 6 V |
| 频率 - 开关： | 5.5kHz ~ 30kHz |
| 电流 - 输出： | 50mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-SOIC |
| 产品目录页面： | 1339 (CN2011-ZH PDF) |
LTC1046
ELECTRICAL C HARA C TERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which
the life of the device may be impaired.
Note 2: Connecting any input terminal to voltages greater than V + or
less than ground may cause destructive latch-up. It is recommended
that no inputs from sources operating from external supplies be
applied prior to power-up of the LTC1046.
Note 3: R OUT is measured at T J = 25 ° C immediately after power-on.
Note 4: f OSC is tested with C OSC = 100pF to minimize the effects of test
fixture capacitance loading. The 0pF frequency is correlated to this 100pF
test point, and is intended to simulate the capacitance at pin 7 when the
device is plugged into a test socket and no external capacitor is used.
TYPICAL PERFOR A CE C HARA C TERISTICS
(Using Test Circuit in Figure 1)
Output Resistance vs
Oscillator Frequency
Output Resistance vs
Supply Voltage
Output Resistance vs
Temperature
500
400
T A = 25 ° C
V + = 5V
I L = 10mA
1000
T A = 25 ° C
I L = 3mA
80
70
C1 = C2 = 10 μ F
60
300
C1 = C2
= 1 μ F
100
C OSC = 100pF
50
V + = 2V, C OSC = 0pF
200
100
C1 = C2
= 100 μ F
C1 = C2
= 10 μ F
C OSC = 0pF
40
30
V + = 5V, C OSC = 0pF
20
0
100
1k
10k
100k
10
0
1
2
3
4
5
6
7
10
–55
–25 0
25 50
75
100
125
SUPPLY VOLTAGE, V (V)
OSCILLATOR FREQUENCY, f OSC (Hz)
1046 G01
Power Conversion Efficiency vs
Load Current for V + = 2V
+
1046 G02
Power Conversion Efficiency vs
Load Current for V + = 5V
AMBIENT TEMPERATURE ( ° C)
1046 G03
Power Conversion Efficiency vs
Oscillator Frequency
100
90
80
70
60
50
40
P EFF
I S
10
9
8
7
6
5
4
100
90
80
70
60
50
40
P EFF
I S
100
90
80
70
60
50
40
100
98
96
94
92
90
88
A
C
B
E
A = 100 μ F, 1mA
B = 100 μ F, 15mA
C = 10 μ F, 1mA
D = 10 μ F, 15mA
E = 1 μ F, 1mA
F = 1 μ F, 15mA
V + = 5V
T A = 25 ° C
C1 = C2
30
20
10
0
0
1
2
3 4
5
T A = 25 ° C
V + = 2V
C1 = C2 = 10 μ F
f OSC = 8kHz
6 7 8 9
10
3
2
1
0
30
20
10
0
0
10
20
30 40
T A = 25 ° C
V + = 5V
C1 = C2 = 10 μ F
f OSC = 30kHz
50 60
70
30
20
10
0
86
84
82
80
100
D
F
1k 10k 100k
1M
LOAD CURRENT, I L (mA)
1046 G04
LOAD CURRENT, I L (mA)
1046 G05
OSCILLATOR FREQUENCY, f OSC (Hz)
1046 G06
1046fb
3
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