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| 型号： | LT1110CS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST ADJ 0.4A 8SOIC |
| 标准包装： | 100 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 输入电压： | 1 V ~ 30 V |
| 频率 - 开关： | 70kHz |
| 电流 - 输出： | 400mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°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 |
LT1110
ELECTRICAL C HARA C TERISTICS T A = 25 ° C, V IN = 1.5V, unless otherwise noted.
SYMBOL
V CESAT
PARAMETER
Switch Saturation Voltage
CONDITIONS
V IN = 1.5V, I SW = 400mA
MIN
TYP
300
MAX
400
UNITS
mV
Step-Up Mode
V IN = 1.5V, I SW = 500mA
V IN = 5V, I SW = 1A
q
q
400
700
600
550
750
1000
mV
mV
mV
mV
A V
I REV
I LIM
A2 Error Amp Gain
Reverse Battery Current
Current Limit
R L = 100k ? (Note 3)
(Note 4)
220 ? Between I LIM and V IN
q
1000
5000
750
400
V/V
mA
mA
Current Limit Temperature
Coefficient
– 0.3
%/ ° C
I LEAK
V SW2
Switch OFF Leakage Current
Maximum Excursion Below GND
Measured at SW1 Pin
I SW1 ≤ 10 μ A, Switch Off
1
– 400
10
– 350
μ A
mV
The q denotes the specifications which apply over the full operating
temperature range.
Note 1: This specification guarantees that both the high and low trip point
of the comparator fall within the 210mV to 230mV range.
Note 3: 100k ? resistor connected between a 5V source and the AO pin.
Note 4: The LT1110 is guaranteed to withstand continuous application of
+1.6V applied to the GND and SW2 pins while V IN , I LIM , and SW1 pins are
grounded.
Note 2: This specification guarantees that the output voltage of the fixed
versions will always fall within the specified range. The waveform at the
sense pin will exhibit a sawtooth shape due to the comparator hysteresis.
TYPICAL PERFOR A CE C HARA C TERISTICS
100
90
80
70
60
50
Oscillator Frequency
80
78
76
74
72
70
68
66
64
62
Oscillator Frequency
14
13
12
11
10
9
8
Switch On Time
40
–50
–25
0
25
50
75
100
60
0
3
6
9
12 15 18 21 24 27 30
7
–50
–25
0
25
50
75
100
TEMPERATURE ( ° C)
LT1110 ? TPC01
INPUT VOLTAGE (V)
LT1110 ? TPC02
TEMPERATURE ( ° C)
LT1110 ? TPC03
3
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