Datasheet > AAT3236IJS-3.0-T1

AAT3236IJS-3.0-T1

更新时间： 2024-01-17 12:34:19

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300mA CMOS High Performance LDO

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AAT3236IJS-3.0-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.82	湿度敏感等级：	1
Base Number Matches：	1

AAT3236IJS-3.0-T1 数据手册

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AAT3236

300mA CMOS High Performance LDO

In low output current applications where output

load is less than 10mA, the minimum value for

Applications Information

C_OUTcan be as low as 0.47µF.

Input Capacitor

Typically, a 1µF or larger capacitor is recommend-

ed for C_INin most applications. A C_INcapacitor is

not required for basic LDO regulator operation.

However, if the AAT3236 is physically located more

than six centimeters from an input power source, a

C_INcapacitor will be needed for stable operation.

C_INshould be located as closely to the device V_IN

pin as practically possible. C_INvalues greater than

1µF will offer superior input line transient response

and will assist in maximizing the highest possible

power supply ripple rejection.

Bypass Capacitor and Low Noise

Applications

A bypass capacitor pin is provided to enhance the

very low noise characteristics of the AAT3236 LDO

regulator. The bypass capacitor is not necessary

for operation of the AAT3236. However, for best

device performance, a small ceramic capacitor

should be placed between the bypass pin (BYP)

and the device ground pin (GND). The value of

C_BYPmay range from 470pF to 10nF. For lowest

noise and best possible power supply ripple rejec-

tion performance a 10nF capacitor should be used.

To practically realize the highest power supply rip-

ple rejection and lowest output noise performance,

it is critical that the capacitor connection between

the BYP pin and GND pin be direct and PCB traces

should be as short as possible. Refer to the PCB

Layout Recommendations section of this datasheet

for examples.

Ceramic, tantalum, or aluminum electrolytic capac-

itors may be selected for C_IN. There is no specific

capacitor ESR requirement for C_IN. However, for

300mA LDO regulator output operation, ceramic

capacitors are recommended for C_INdue to their

inherent capability over tantalum capacitors to with-

stand input current surges from low impedance

sources such as batteries in portable devices.

Output Capacitor

There is a relationship between the bypass capac-

itor value and the LDO regulator turn-on time. In

applications where fast device turn-on time is

desired, the value of C_BYPshould be reduced.

For proper load voltage regulation and operational

stability, a capacitor is required between pins V_OUT

and GND. The C_OUTcapacitor connection to

the LDO regulator ground pin should be made as

direct as practically possible for maximum device

performance.

In applications where low noise performance

and/or ripple rejection are less of a concern, the

bypass capacitor may be omitted. The fastest

device turn-on time will be realized when no

bypass capacitor is used.

The AAT3236 has been specifically designed to

function with very low ESR ceramic capacitors.

Although the device is intended to operate with

these low ESR capacitors, it is stable over a very

wide range of capacitor ESR, thus it will also work

with higher ESR tantalum or aluminum electrolytic

DC leakage on this pin can affect the LDO regula-

tor output noise and voltage regulation perform-

ance. For this reason, the use of a low leakage,

high quality ceramic (NPO or C0G type) or film

capacitor is highly recommended.

capacitors.

However, for best performance,

ceramic capacitors are recommended.

Typical output capacitor values for maximum out-

put current conditions range from 1µF to 10µF.

Applications utilizing the exceptionally low output

noise and optimum power supply ripple rejection

characteristics of the AAT3236 should use 2.2µF or

Capacitor Characteristics

Ceramic composition capacitors are highly recom-

mended over all other types of capacitors for use

with the AAT3236. Ceramic capacitors offer many

advantages over their tantalum and aluminum elec-

trolytic counterparts. A ceramic capacitor typically

has very low ESR, is lower cost, has a smaller PCB

greater for C_OUT

If desired, C_OUTmay be

increased without limit.

3236.2007.03.1.4

1...6 7 8910 11 12...18

中文翻译

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与AAT3236IJS-3.0-T1相关器件

型号	品牌	获取价格	描述	数据表
AAT3236IJS-3.1-T1	AAT	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.1-T1	ANALOGICTECH	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.3-T1	AAT	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.3-T1	ANALOGICTECH	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.5-T1	ANALOGICTECH	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.5-T1	AAT	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.6-T1	AAT	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-3.6-T1	ANALOGICTECH	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-30-T1	ANALOGICTECH	获取价格	300mA CMOS High Performance LDO
AAT3236IJS-33-T1	ANALOGICTECH	获取价格	300mA CMOS High Performance LDO

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