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参数资料
| 型号： | LT1424CN8-9#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC REG FLYBACK ISOLATED 9V 8DIP |
| 标准包装： | 50 |
| 类型： | 回扫，隔离 |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 9V |
| 输入电压： | 2.8 V ~ 20 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 285kHz |
| 电流 - 输出： | 200mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
| 供应商设备封装： | 8-PDIP |
LT1424-9
TYPICAL PERFOR A CE CHARACTERISTICS
275
250
225
200
175
150
125
100
Minimum Switch On Time
vs Temperature
250
225
200
175
150
125
100
75
Flyback Enable Delay Time
vs Temperature
275
250
225
200
175
150
125
100
Minimum Flyback Enable Time
vs Temperature
– 50 – 25
0
25
50
75
100
125
– 50 – 25
0
25
50
75
100
125
– 50 – 25
0
25
50
75
100
125
TEMPERATURE ( ° C)
PI N FU N CTIO N S
1424-9 G10
TEMPERATURE ( ° C)
1424-9 G11
TEMPERATURE ( ° C)
1424-9 G12
SHDN (Pin 1): Shutdown. This pin is used to turn off the
regulator and reduce V IN input current to a few tens of
microamperes. The SHDN pin can be left floating when
unused.
V C (Pin 2): Control Voltage. This pin is the output of the
feedback amplifier and the input of the current compara-
tor. Frequency compensation of the overall loop is effected
by placing a capacitor between this node and ground.
SYNC (Pin 3): Pin to synchronize internal oscillator to
external frequency reference. It is directly logic compat-
ible and can be driven with any signal between 10% and
90% duty cycle. If unused, this pin should be tied to
ground.
SGND (Pin 4): Signal Ground. This pin is a clean ground.
The internal reference and feedback amplifier are referred
PGND (Pin 5): Power Ground. This pin is the emitter of the
power switch device and has large currents flowing through
it. It should be connected directly to a good quality ground
plane.
V SW (Pin 6): This is the collector node of the output switch
and has large currents flowing through it. Keep the traces
to the switching components as short as possible to
minimize electromagnetic radiation and voltage spikes.
V IN (Pin 7): Supply Voltage. Bypass input supply pin with
10 μ F or more. The part goes into undervoltage lockout
when V IN drops below 2.8V. Undervoltage lockout stops
switching and pulls the V C pin low.
R CCOMP (Pin 8): Pin for the External Filter Capacitor for
Load Compensation Function. A common 0.1 μ F
ceramic capacitor will suffice.
to it. Keep the ground path connection to the V C compen-
sation capacitor free of large ground currents.
sn14249 14249fs
5
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| LT1424CS8-5 | 功能描述:IC REG FLYBACK ISOLATED 5V 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT1424CS8-5#PBF | 功能描述:IC REG FLYBACK ISOLATED 5V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
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