参数资料
型号: LT1107CS8-12#PBF
厂商: Linear Technology
文件页数: 3/16页
文件大小: 0K
描述: IC REG BUCK BOOST INV 12V 8SOIC
标准包装: 100
类型: 降压(降压),升压(升压),反相
输出类型: 固定
输出数: 1
输出电压: 12V
输入电压: 2 V ~ 30 V
频率 - 开关: 63kHz
电流 - 输出: 400mA
同步整流器:
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
产品目录页面: 1325 (CN2011-ZH PDF)
LT1107
ELECTRICAL C HARA C TERISTICS The q denotes the specifications which apply over the full operating
temperature range, V IN = 3V, military or commercial version, T A = 25 ° C, unless otherwise noted.
SYMBOL
V OL
PARAMETER
Feedback Pin Bias Current
Set Pin Bias Current
Gain Block Output Low
Reference Line Regulation
CONDITIONS
LT1107, V FB = 0V
V SET = V REF
I SINK = 300 μ A, V SET = 1V
5V ≤ V IN ≤ 30V
q
q
q
q
MIN
TYP
70
70
0.15
0.02
MAX
120
300
0.4
0.075
UNITS
nA
nA
V
%/V
A V
Gain Block Gain
R L = 100k (Note 4)
q
1000
6000
V/V
Current Limit
Current Limit Temperature Coefficient
220 ? to I LIM to V IN
q
400
– 0.3
mA
%/ ° C
Switch OFF Leakage Current
Measured at SW1 Pin, V SW1 = 12V
1
10
μ A
V SW2
Maximum Excursion Below GND
I SW1 ≤ 10 μ A, Switch OFF
– 400
– 350
mV
The q denotes the specifications which apply over the full operating temperature range, V IN = 3V, – 55 ° C ≤ T A ≤ 125 ° C, unless
otherwise noted.
LT1107M
SYMBOL
I Q
PARAMETER
Quiescent Current
CONDITIONS
Switch OFF
q
MIN
TYP MAX
500
UNITS
μ A
f OSC
Oscillator Frequency
q
40
63
95
kHz
DC
t ON
Duty Cycle
Switch ON Time
Step-Up Mode
Step-Down Mode, V IN = 12V
Step-Up Mode
Step-Down Mode, V IN = 12V
q
q
q
q
56
45
7
5
69
60
11
9
81
73
15
13
%
%
μ s
μ s
Reference Line Regulation
2V ≤ V IN ≤ 5V, 0 ° C ≤ T A ≤ 125 ° C
2.4V ≤ V IN ≤ 5V, T A = – 55 ° C
0.2
0.4
0.8
%/V
%/V
V SAT
Switch Saturation Voltage, Step-Up Mode
Switch Saturation Voltage, Step-Down Mode
0 ° C ≤ T A ≤ 125 ° C, I SW = 500mA
T A = – 55 ° C, I SW = 400mA
V IN = 12V, I SW = 500mA
0 ° C ≤ T A ≤ 125 ° C
T A = – 55 ° C
0.5
0.5
0.65
0.65
1.5
2.0
V
V
V
V
The q denotes the specifications which apply over the full operating temperature range, V IN = 3V, 0 ° C ≤ T A ≤ 70 ° C, unless otherwise
noted.
LT1107C
SYMBOL
I Q
PARAMETER
Quiescent Current
CONDITIONS
Switch OFF
q
MIN
TYP
MAX
450
UNITS
μ A
f OSC
Oscillator Frequency
q
50
63
88
kHz
DC
t ON
V SAT
Duty Cycle
Switch ON Time
Reference Line Regulation
Switch Saturation Voltage, Step-Up Mode
Switch Saturation Voltage, Step-Down Mode
Step-Up Mode
Step-Down Mode, V IN = 12V
Step-Up Mode
Step-Down Mode, V IN = 12V
2V ≤ V IN ≤ 5V
V IN = 3V, I SW = 650mA
V IN = 12V, I SW = 650mA
q
q
q
q
q
q
q
62
50
8
6
69
60
11
9
0.2
0.5
1.1
78
70
13.5
12.0
0.7
0.65
1.5
%
%
μ s
μ s
%/V
V
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: This specification guarantees that both the high and low trip points
of the comparator fall within the 1.2V to 1.3V range.
Note 3: The output voltage waveform will exhibit a sawtooth shape due to
the comparator hysteresis. The output voltage on the fixed-output versions
will always be within the specified range.
Note 4: 100k resistor connected between a 5V source and the AO pin.
1107fa
3
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