参数资料
型号: FT441AA
厂商: Fremont Micro Devices USA
文件页数: 2/10页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.9 A SOT23
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 5.5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1.5MHz
电流 - 输出: 900mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
包装: 标准包装
供应商设备封装: SOT-23-5
其它名称: 1219-1078-6
Fremont Micro Devices
TYPICAL APPLICATION CIRCUIT
FT441
VIN 2.7~4.2V
4
V IN
SW
3
L1 2.2uH
Vout 1.8V
FT441
C2
22pF
10u
C1
10uF
1
EN
GND
V FB
5
R2
200K
C3
F
2
R1
100K
Figure 1: Typical Application Circuit
ABSOLUTE MAXIMUM RATINGS
VIN to GND……………………………….……………………………………………………………-0.3V to 6V
EN to GND..…………………………………………….……………………………….. ……-0.3V to (VIN+0.3)
VFB to GND..…………………………………………………………………………………. -0.3V to (VIN+0.3)
SW to GND………………….…………………………………………………………….……-0.3V to (VIN+0.3)
Peak SW Sink and Source Current……………...……………………………………………….Internally Limited
Junction to Ambient Thermal Resistance ( θ JA ).…………………….……………………………………250 ℃ /W
Operating Temperature Range……………….……………………………………………………...-40 ℃ to +85 ℃
Junction Temperature………………………………………………………………………..….... -40 ℃ to +150 ℃
Storage Temperature Range …………………………..……………………………………….….-55 ℃ to +150 ℃
Lead Temperature (Soldering, 10sec) …………………………………………………………………...…...300 ℃
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only.
Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to
stresses above the Recommended Operating Conditions may affect device reliability .
www.fremontmicro.com
Page 2 of 10
DS441-A2
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