参数资料
型号: LT1424CS8-9#PBF
厂商: Linear Technology
文件页数: 5/16页
文件大小: 0K
描述: IC REG FLYBACK ISOLATED 9V 8SOIC
标准包装: 100
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:
工作温度: 0°C ~ 125°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
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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LT1424IN8-5#PBF 功能描述:IC REG FLYBACK ISOLATED 5V 8DIP 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:20 系列:SIMPLE SWITCHER® 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP(0.300",7.62mm) 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12
LT1424IN8-9 功能描述:IC REG FLYBACK ISOLATED 9V 8DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压(升压) 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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:SOT-23-5 细型,TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT
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