Datasheet > CAT3200_05

CAT3200_05

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
CATALYST		转换器泵
页数	文件大小	规格书
12页	558K
描述
Low Noise Regulated Charge Pump DC-DC Converter

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CAT3200_05 数据手册

CAT3200, CAT3200-5

Low Noise Regulated Charge Pump DC-DC Converter

FEATURES

I Thermal overload shutdown protection

I Constant high frequency (2MHz) operation

I 100mA output current

I Low value external capacitors (1µF)

I Foldback current overload protection

I Shutdown current less than 1µA

I Regulated output voltage (5V fixed CAT3200-5,

Adjustable CAT3200)

I Low quiescent current (1.7mA typ.)

I Input voltage operation down to 2.7V

I Soft start, slew rate control

I CAT3200-5 in low profile (1mm thin) 6-lead

SOT23 package

I CAT3200 in MSOP-8 package

APPLICATIONS

I 3V to 5V boost conversion

I White LED driver

I Local 5V supply from lower rail

I Battery backup systems

I USB On-The-Go 5V supply

I Handheld portable devices

DESCRIPTION

A shutdown control input allows the device to be

placed in power-down mode, reducing the supply

current to less than 1µA.

The CAT3200 and CAT3200-5 are switched capacitor

boost converters that deliver a low noise, regulated

outputvoltage. TheCAT3200-5givesafixedregulated

5V output. The CAT3200 has an adjustable output

usingexternalresistors. Theconstantfrequency2MHz

charge pump allows small 1µF ceramic capacitors to

be used.

In the event of short circuit or overload conditions, the

device is fully protected by both foldback current

limiting and thermal overload detection. In addition, a

soft start, slew rate control circuit limits inrush current

during power-up.

Maximum output loads of up to 100mA can be

supported over a wide range of input supply voltages

(2.7V to 4.5V) making the device ideal for battery-

powered applications.

The CAT3200-5 is available in a 6-lead, 1mm max

thin SOT23 package. The CAT3200 is available in an

8-lead MSOP package.

TYPICAL APPLICATION

5V Output

Adjustable Output

CNEG

CPOS

CNEG

CPOS

OUT

100mA

OUT

100mA

CAT3200-5

CAT3200

ON OFF

SHDN

3.3V

GND

(

= 1.27 V 1+

(

OUT

Characteristics subject to change without notice

Doc. No. 5002, Rev. K

12 3 4 5 6 7...12

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