15815503065
KF9902B 电容升压IC
品牌1: KF/科发鑫
精度: ±4%
输出电压: 3.3V
输出电流: 100mA
报价: 0.30元/个
最小起订: 3000 个
库存: 1000000000 个
发货期限: 自买家付款之日起 2 天内发货
有效期至: 长期有效
发布时间: 2023-09-06 14:51
浏览次数: 176
手机号: 15815503065
电话: 0755-83538626
在线咨询: 点击这里给我发消息
15815503065
详细信息

The KF9902B is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. It produce a regulated output voltage from a 1.8V to 5V input with up to 100mA of output current. Low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the KF9902B ideally suited for small,battery-powered applications.

The KF9902B have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush current during start-up.

High switching frequency enables the use of small ceramic capacitors. A low current shutdown feature disconnects the load from VIN and reduces current to <1uA. The KF9902B is available in the 6-pin SOT23-6.

    Features

Fixed 3.3V土4% Output

VIN Range: 1.8V to 5V

Output Current: 100mA

Constant Frequency Operation at All Loads

Low Noise Constant Frequency (1.2MHz) Operation

Automatic Soft-Start Reduces Inrush Current

Shutdown Current <1μA

Short-Circuit Protection

No Inductors

Available in Low Profile 6-Lead SOT23 Package

     Application

2 AA Cell to 3.3V

USB On-The-Go Devices

White L .ED Drivers

Handheld Devices

 


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