Datasheet > LR8558

LR8558

更新时间： 2024-09-28 12:01:31

品牌	Logo	应用领域
乐山 - LRC		/
页数	文件大小	规格书
11页	647K
描述
Low noise, fast response 500mA LDO regulato

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LR8558 数据手册

Leshan Radio Co ., Ltd

LR8558

Low noise, fast response 500mA LDO regulator

General Description：

Features：

• Low Power Consumption: 75uA（Typ.）

• Low output noise (47uVRMS)

• Standby Mode: 0.1uA

LR8558 series is a group of positive

voltage output, low power consumption, low

dropout voltage regulator.

LR8558 can provide output value in the

range of 1.2V~4.5V every 0.1V step. It also

can be customized on command.

• Low dropout Voltage: 0.46V@500mA (Typ.)

• High Ripple Rejection: 66dB@100Hz (Typ.)

• Low Temperature Coefficient: ±100ppm/°C

• Excellent Line regulation: 0.05%/V

• Build-in chip enable and discharge circuit

LR8558 includes high accuracy voltage

reference, error amplifier, current limit circuit

and output driver module with discharge

capability.

• Output Voltage Range: 1.2V~4.5V

(customized on command every 0.1V step)

LR8558 has excellent load and line

transient response and good temperature

characteristics, which can assure the stability

of chip and power system. And it uses

trimming technique to guarantee output

voltage accuracy within±2%.

• Highly Accurate: ±2% (±1% customized)

• Output Current Limit

Applications：

• Power source for cellular phones and

various kind of PCSs

LR8558 is available in SOT-23-5, SC-82

packages which is lead free. It also can

available in these packages with lead.

• Battery Powered equipment

• Power Management of MP3, PDA, DSC,

Mouse, PS2 Games

• Reference Voltage Source

• Regulation after Switching Power

L8558 Ty pical Performance

LR8558 Typical Application Circuit

Characteristics：

LR8558-2.8V Output

2.9

2.8

2.7

2.6

2.5

2.4

2.3

2.2

2.1

LR8558

200

400

600

Iload(mA)

1/11

12 3 4 5 6 7...11

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