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    The CST9005 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. 

    The series achieves high ripple rejection and low dropout and consists of a standard voltage source, an error correction, current limiter and a phase compensation circuit plus a driver transistor. Output voltage is selectable in 0.05V increments within a range of 0.8V ~ 3.6V. 

    The series is also compatible with low ESR ceramic capacitors which give added output stability.

    It provides up to 500mA of output current in miniaturized packaging. 

    The features of low quiescent current as low as 0.3μA and almost zero disable current is ideal for powering the battery equipment to a longer service life. The other features include current limit function, Integrated Short-Circuit Protection ,over temperature protection and Fast discharge function.

    CST9005系列是高精度、低噪聲、正電壓LDO穩(wěn)壓器使用CMOS工藝制造。

    該系列實(shí)現(xiàn)了高紋波抑制和低損耗它由一個(gè)標(biāo)準(zhǔn)電壓源、一個(gè)誤差校正、限流器和一個(gè)相位組成補(bǔ)償電路加上驅(qū)動(dòng)晶體管。輸出電壓可在范圍為0.8V～3.6V。

    該系列還兼容低ESR陶瓷電容器提供額外的輸出穩(wěn)定性。它在小型封裝中提供高達(dá)500mA的輸出電流。

    低至0.3μA的低靜態(tài)電流和幾乎為零的禁用電流的特性非常適合為電池設(shè)備提供更長的使用壽命。

    其他功能包括電流限制功能、集成短路保護(hù)、超溫保護(hù)和快速放電作用

CST9005 Features/特性：

Low Power Consumption: 0.3uA (Typ)

Maximum Output Current: 500mA

Small Dropout Voltage 100mV@100mA (Vout=3.3V)

PSRR=70dB@1KHz

Input Voltage Range: 2.0V~7.0V

Output Voltage Range: 0.8V~3.6V (customized on command in 0.05V steps)

High Accurate: ±1.5%

Integrated Short-Circuit Protection

Good Transient Response

Over-Temperature Protection

Support Fixed Output Voltage

Output Current Limit

Stable with Ceramic Capacitor

Available Package SOT23-3 \ SOT23-5 \ SOT89-3 \ DFN1x1-4L

RoHS Compliant and Lead (Pb) Free

CST9005 Application/應(yīng)用:

Battery-powered equipment

Reference voltage sources

Low Power Microcontrollers

Wireless Communication Equipment

Audio/Video Equipment

Portable games

CST9005 Application Circuits/應(yīng)用電路:

CST9005 Pin Configuration/引腳配置:

CST9005 Order Information/訂購信息:

Designator	Symbol	Description
①②	S3/S5/P3/D4	SOT23-3L/SOT23-5L/ SOT89-3L/DFN1x1-4L
③④	Integer	Output Voltage (09、10、12、15、18、25、、28、30、33、36)

Model	Marking**	Description	Package	T/R Qty
CST9005S3-XX*	-----	CST9005 0.3μA IQ ,High PSRR 500mA Low-Dropout  LDO	SOT23-3L	3,000 PCS
CST005S5-XX*	-----		SOT23-5L	3,000 PCS
CST9005P3-XX*	-----		SOT89-3L	1,000 PCS
CST9005D4-XX*	-----		DFN1x1-4L	10,000 PCS

CST9005 Function Block Diagram/功能框圖: