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BL8558 fiches techniques PDF

BELLING - fast response 500mA LDO regulator

Numéro de référence BL8558
Description fast response 500mA LDO regulator
Fabricant BELLING 
Logo BELLING 





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BL8558 fiche technique
BL8558
Low noise, fast response 500mA LDO regulator
Features
Low Power Consumption: 75uATyp.
Low output noise (47uVRMS)
Standby Mode: 0.1uA
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
Output Voltage Range: 1.2V~4.5V
(customized on command every 0.1V step)
Highly Accurate: ±2% (±1% customized)
Output Current Limit
Applications
Power source for cellular phones and
various kind of PCSs
Battery Powered equipment
Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
Reference Voltage Source
Regulation after Switching Power
General Description
BL8558 series is a group of positive
voltage output, low power consumption,
low dropout voltage regulator.
BL8558 can provide output value in the
range of 1.2V~4.5V every 0.1V step. It
also can be customized on command.
BL8558 includes high accuracy voltage
reference, error amplifier, current limit
circuit and output driver module with
discharge capability.
BL8558 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%.
BL8558 is available in SOT-23-5,
SOT89-3, SOT23-3, TO92 packages
which are lead free.
BL8558 Typical Application Circuit
BL8558
BL8558 Typical Performance
Characteristics
BL8558-2.8V Output
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
0
200 400
Iload(mA)
600
http://www.belling.com.cn
- 1-
Total 10 Pages
8/16/2006

PagesPages 10
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