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参数资料
| 型号： | LT1614IS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/16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
OPERATIO
Capacitors
As described previously, ceramic capacitors can be used
with the LT1614. For lower cost applications, small tanta-
lum units can be used. A value of 22 μ F is acceptable,
although larger capacitance values can be used. ESR is the
most important parameter in selecting an output capaci-
tor. The “flying” capacitor (C2 in the schematic figures)
should be a 1 μ F ceramic type. An X5R or X7R dielectric
should be used to avoid capacitance decreasing severely
with applied voltage. The input bypass capacitor is less
Table 1. Inductor Vendors
critical, and either tantalum or ceramic can be used with
little trade-off in circuit performance. Some capacitor
types appropriate for use with the LT1614 are listed in
Table 2.
Diodes
A Schottky diode is recommended for use with the LT1614.
The Motorola MBR0520 is a very good choice. Where the
input to output voltage differential exceeds 20V, use the
MBR0530 ( a 30V diode).
VENDOR
Sumida
Murata
Coiltronics
PHONE
(847) 956-0666
(404) 436-1300
(407) 241-7876
URL
www.sumida.com
www.murata.com
www.coiltronics.com
PART
CLS62-22022
CD43-470
LQH3C-220
CTX20-1
COMMENT
22 μ H Coupled
47 μ H
22 μ H, 2mm Height
20 μ H Coupled, Low DCR
Table 2. Capacitor Vendors
VENDOR
Taiyo Yuden
AVX
PHONE
(408) 573-4150
(803) 448-9411
URL
www.t-yuden.com
www.avxcorp.com
PART
Ceramic Caps
Ceramic Caps
COMMENT
X5R Dielectric
Tantalum Caps
Murata
(404) 436-1300
www.murata.com
Ceramic Caps
10
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