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参数资料
| 型号： | LT1110CS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/16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
TYPICAL PERFOR A CE C HARA C TERISTICS
160
Set Pin Bias Current
120
FB Pin Bias Current
226
Reference Voltage
140
120
100
80
60
40
20
0
110
100
90
80
70
60
50
40
30
20
10
0
224
222
220
218
216
214
212
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
–50
–25
0
25
50
75
100
TEMPERATURE ( ° C)
PI FU C TI
S
LT1110 ? TPC13
TEMPERATURE ( ° C)
LT1110 ? TPC14
TEMPERATURE ( ° C)
LT1110 ? TPC15
I LIM (Pin 1): Connect this pin to V IN for normal use. Where
lower current limit is desired, connect a resistor between
I LIM and V IN . A 220 ? resistor will limit the switch current
to approximately 400mA.
V IN (Pin 2): Input supply voltage.
SW1 (Pin 3): Collector of power transistor. For step-up
mode connect to inductor/diode. For step-down mode
connect to V IN .
SW2 (Pin 4): Emitter of power transistor. For step-up
mode connect to ground. For step-down mode connect to
inductor/diode. This pin must never be allowed to go more
than a Schottky diode drop below ground.
LT1110 BLOCK D I AGRA
GND (Pin 5): Ground.
AO (Pin 6): Auxiliary Gain Block (GB) output. Open collector,
can sink 300 μ A.
SET (Pin 7): GB input. GB is an op amp with positive input
connected to SET pin and negative input connected to
220mV reference.
FB/SENSE (Pin 8): On the LT1110 (adjustable) this pin
goes to the comparator input. On the LT1110-5 and
LT1110-12, this pin goes to the internal application resistor
that sets output voltage.
SET
+
A2
AO
V IN
220mV
REFERENCE
–
GAIN BLOCK/ERROR AMP
I LIM
SW1
A1
COMPARATOR
OSCILLATOR
DRIVER
Q1
GND
FB
SW2
LT1110 ? BD01
5
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相关代理商/技术参数 |
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