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参数资料
| 型号： | LT1614IS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC REG INV ADJ 0.5A 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 -24V |
| 输入电压： | 0.8 V ~ 5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 500mA |
| 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： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
LT1614
TYPICAL APPLICATIO S
5V to – 5V Converter Uses All Ceramic Capacitors
V IN
L1
22 μ H
C3
1 μ F
L2
22 μ H
3V TO 5V
V IN
SW
V OUT
– 5V
C1
4.7 μ F
100k
SHDN
LT1614
V C
GND
NFB
1nF
69.8k
24.9k
D1
200mA
C2
10 μ F
1nF
C1: TAIYO YUDEN LMK316BJ475ML
C2: TAIYO YUDEN JMK316BJ106ML
C3: TAIYO YUDEN EMK316BJ105MF
D1: MOTOROLA MBR0520
L1, L2: MURATA LQH3C220 OR SUMIDA CD43-220
Efficiency vs Load Current
80
1614 TA07
75
70
65
60
55
50
45
V IN = 3V
V OUT = –5V
40
1
10
100
LOAD CURRENT (mA)
1614 TA08
RELATED PARTS
PART NUMBER
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LT1610
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LT1930
LT1931
DESCRIPTION
High Efficiency Step-Down and Inverting DC/DC Converter
Single Cell Micropower 600kHz PWM DC/DC Converter
Single Cell High Current Micropower 600kHz Boost Converter
Micropower Boost DC/DC Converter
Micropower 600kHz PWM DC/DC Converter
Low Quiescent Current High Efficiency DC/DC Converter
1.7MHz Single Cell Micropower DC/DC Converter
Inverting 1.4MHz Switching Regulator in 5-Lead SOT-23
1.4MHz Switching Regulator in 5-Lead SOT-23
Micropower Constant Off-Time DC/DC Converter in 5-Lead SOT-23
Micropower Inverting DC/DC Converter in 5-Lead SOT-23
1.2MHz Boost DC/DC Converter in 5-Lead SOT-23
1.2MHz Inverting DC/DC Converter in 5-Lead SOT-23
COMMENTS
Selectable I PEAK = 300mA or 600mA
3.3V at 75mA from 1 Cell, MSOP Package
5V at 1A from a Single Li-Ion Cell, SO-8 Package
Programmable Peak Current Limit, MSOP Package
2 Cells to 3.3V at 200mA, MSOP Package
I Q = 10 μ A, Programmable Peak Current Limit, MSOP
5V at 200mA from 3.3V, MSOP Package
– 5V at 150mA from 5V Input, Tiny SOT-23 Package
5V at 200mA from 3.3V Input, Tiny SOT-23 Package
20V at 12mA from 2.5V, Tiny SOT-23 Package
–15V at 12mA from 2.5V, Tiny SOT-23 Package
5V at 480mA from 3.3V Input, V OUT Up to 34V
–5V at 350mA from 5V Input, 1mV P-P Output Ripple
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX: (408) 434-0507 q www.linear-tech.com
sn1614 1614fs LT/TP 1000 4K ? PRINTED IN THE USA
? LINEAR TECHNOLOGY CORPORATION 1998
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