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| 型号： | FT440CA |
| 厂商： | Fremont Micro Devices USA |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 1.8V 0.6A SOT23 |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 1.8V |
| 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： | 600mA |
| 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： | SC-74A，SOT-753 |
| 包装： | 标准包装 |
| 供应商设备封装： | SOT-23-5 |
| 其它名称： | 1219-1077-6 |
Fremont Micro Devices
FT440
1.5MHz, 600mA Synchronous Step-Down Converter
FEATURES
DESCRIPTION
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High Efficiency - Up to 95%
Guaranteed 600mA Output Current
2.5V to 5.5V Input Voltage Range
1.5MHz Constant Frequency Operation
No external Schottky Diode Needed
Adjustable Output Voltages From 0.6V to VIN
Fixed Output Voltage Options Available
100% Duty Cycle Low-Dropout Operation
0.1 μ A Shutdown Current
SOT23-5 Package
The FT440 is a 1.5MHz constant frequency, slope
compensated current mode step down converter.
Capable of delivering 600mA output current over a
wide input voltage from 2.5V to 5.5V, the FT440 is
ideally suited for single Li-Ion battery powered
application.
The FT440 integrates a main switch and a
synchronous rectifier for high efficiency without an
external Schottky diode. The FT440 automatically
turns off the synchronous rectifier to increase
TYPICAL APPLICATIONS
efficiency while enters discontinuous PWM mode.
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Cellular phones
Blue Tooth Headsets
Portable Audio Players
Mobile Phones
Wireless and DSL Modems
Digital Still Cameras
Portable Instruments
Mp3 Player
The FT440 can run at 100% duty cycle for low
dropout operation, maximizing battery life in portable
application. FT440 consumes less than 1uA when
enter shutdown mode.
The FT440 is available in a fixed output voltages of
1.5V, 1.8V, and 2.5V, and is also available in an
adjustable output voltage version capable of
generating output voltages from 0.6V to VIN .The
FT440 is available in a 5-pin SOT23-5 package.
www.fremontmicro.com
Page 1 of 10
DS440-A3
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| FT441AA | 功能描述:IC REG BUCK SYNC ADJ 0.9 A SOT23 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
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