CXSU63221系列CXSU63222是基于CMOS的PFM升压型DC-DC变换器。该转换器可以启动电源电压低至0.8V，并能够提供最大的100mA输出电流在3.3V输出1.8V的输入电压。从电源引出的静态电流低至10uA。所有这些特性使CXSU63221 CXSU63222系列适用于便携式设备，这些设备由一个电池向四个电池供电。为了降低开关稳压器产生的噪声，CXSU63221 CXSU63222在电路设计和制造上考虑周全。从而大大减少了器件对其它电路的干扰
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产品概述 返回TOP
CXSU63221 CXSU63222 series are CMOS-based PFM step-up DC-DC Converter. The converter can start up by supply voltage as low as 0.8V, and capable of delivering maximum 100mA output current at 3.3V output with 1.8V input Voltage. Quiescent current drawn from power source is as low as 10uA. All of these features make CXSU63221 CXSU63222 series be suitable for the portable devices, which are supplied by a single battery to four-cell batteries. To reduce the noise caused by the switch regulator, CXSU63221 CXSU63222 is well considerate in circuit design and manufacture. So that the interferer to other circuits by the device is reduced greatly. CXSU63221 CXSU63222 integrates stable reference circuits and trimming technology, so it can afford high precision and low temperature-drift coefficient of the output voltage. TCXSU63221 CXSU63222is available in TO92 SOT-89-3 and SOT-23-3 packages that is PB free. And in 5-pin packages, such as SOT-23-5, the device can be switch on or off easily by CE pin, to minimize the standby supply current.
产品特点 返回TOP
Deliver 450mA at 5.0V Output voltage with 4.0V input Voltage
Low start-up voltage (when the output current is 1mA): 0.8V
Output voltage can be adjusted from 2.5V to 6.0V (In 0.1V step)
Output voltage accuracy : ±2％
Low temperature-drift coefficient of the output voltage: ±100ppm/℃ Only three external components are necessary: An inductor, a Schottky diode and an output filter capacitor
Low quiescent current drawn from power Source:<10uA
应用范围 返回TOP
Power Source for PDA, DSC, MP3 Player, Electronic toy and wireless mouse
Power Source for a Single or Dual-cell Battery-Powered Equipments
Power Source for LED
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产品封装图 返回TOP
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DC/DC控制器升压DC |
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产品系列名 |
数据 下载 |
电路 类型 |
输出电 流Maxm A |
输入电 压Max(V) |
输出电 压范围 (V) |
精度 (±%) |
静态电 流uA |
振荡频率(KHz) |
封装形式 |
|
升压DC |
450 |
0.8~6 |
2～6 |
±2% |
10 |
300 |
内置NMOS升压 |
SOT23-3/SOT23-5 /SOT89 |
|
|
升压DC |
外扩 |
0.8~6 |
2～6 |
±2% |
10 |
300 |
外置NMOS升压 |
SOT23-3/SOT89 |
|
|
同步升压 |
800 |
0.8~6 |
2～6 |
±2% |
15 |
300 |
内置NMOS同步升压 |
SOT23-3/SOT23-5 /SOT89 |
|
|
升压DC |
外扩 |
2.5~6 |
ADJ |
±2% |
300 |
500 |
外置NMOS升压 PFM/PWM |
SOT23-5 |
|
|
升压DC |
外扩 |
2.5~6 |
ADJ |
±2% |
300 |
500 |
外置NMOS升压 PFM/PWM |
SOT23-6 |
|
|
异步升压 |
2000 |
2~24 |
ADJ (Max28) |
±2% |
50/200 |
1200 |
内置NMOS升压 PFM/PWM |
SOT23-6 |
|
|
异步升压 |
700 |
2.5~6 |
ADJ (Max20) |
--- |
2000 |
1400 |
白光背光驱动 |
SOT23-6 |
|
|
异步升压 |
1600 |
2.5~5.5 |
ADJ (Max30) |
--- |
150 |
1200 |
白光背光驱动 |
SOT23-6 |
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