LR8503_15 Datasheet, PDF (1/12 Pages) Leshan Radio Company – Devices per Reel

Leshan Radio Company Ltd.
250mA CMOS Low Dropout Voltage
Low consumption Regulator
Features
• Low Power Consumption3.0uA Typ.
• Maximum Output Current 250mA
• Small Dropout Voltage
170mV@100mA (Vout=3.0V)
400mV@250mA (Vout=3.0V)
• Input Voltage Range1.5V 10V
• Output Voltage Range1.2V~6.0V
customized on command in 0.1V steps
• Highly Accurate2%( 1% customized
• Output Current Limit
Applications
• Battery Powered equipment
• Power Management of MP3PDADSC
MousePS2 Games
• Reference Voltage Source
• Regulation after Switching Power
LR8503 Typical Application Circuit
LR8503
LR8503
Outline
LR8503 series is a group of positive
voltage output, low power consumption, low
dropout voltage, three terminal regulator. It
can provide 250mA output current when
input / output voltage differential drops to
400mVVin =4.0V Vout=3.0V The
very low power consumption of LR8503
Iq=3.0uA can greatly improve natural life
of batteries.
LR8503 can provide output value in the
range of 1.2V~6.0V in 0.1V steps. It also can
customized on command.
LR8503 includes high accuracy voltage
reference, error amplifier, current limit circuit
and output driver module.
LR8503 has well load transient response
and good temperature characteristic, which
can assure the stability of chip and power
system. And it uses trimming technique to
guarantee output voltage accuracy within
2%.
LR8503 is available in SOT-89-3SOT-
23-3 packages which is lead freeit also
can available in these packages with lead.
LR8503 Typical Performance
Characteristic
Output Voltage VS. Output
Cur r e nt(V out=1.5V )
Application hints
NOTE1 Input capacitor (Cin=1uF) is recommended in
all application circuit. Tantalum capacitor is
recommended.
NOTE2Output capacitor (Cout=1uF) is recommended
in all application to assure the stability of
circuit. Tantalum capacitor is recommended.
1.6
1.5
1.4
1.3
1.2
1.1
1
0
100
200
300
Output Current mA
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