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부품번호 A6155 기능
기능 LOW DROPOUT VOLTAGE REGULATOR / 150mA DUAL OUTPUT CMOS LOW NOISE
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A6155 데이터시트, 핀배열, 회로
AiT Semiconductor Inc.
www.ait-ic.com
A6155
LOW DROPOUT VOLTAGE REGULATOR
150mA DUAL OUTPUT CMOS LOW NOISE
DESCRIPTION
The A6155 is a dual output, low noise; low-dropout
regulator delivers at least 150mA of continuous
output current. The output voltage for each
regulator is set independently by trimming.
Voltages are selectable in 100mV steps within a
range of 1.2V to 5.0V. Typical output noise is
27uVRMS, and PSRR is 65dB at 1KHz.
The A6155 includes two independent
logic-controlled shutdown inputs and allows the
output of each regulator to be turned of
independently.
The A6155 includes high accuracy voltage
reference, error amplifier, and current limit circuit
and output driver module.
The A6155 has excellent load and line transient
response and good temperature characteristics,
which can assure the stability of chip and power
system and A6155 uses trimming technique to
guarantee output voltage accuracy within ±2%.
The A6155 is available in SOT-26 package.
ORDERING INFORMATION
Package Type
Part Number
SOT-26
A6155E6R-XZ
E6
A6155E6VR-XZ
X: Output Portfolio
See output voltage portfolio
Note
Z: Pin Type, C or D
V: Green Package
R: Tape & Reel
AiT provides all Pb free products
Suffix “ V “ means Green Package
FEATURES
Low Output Noise (27uVRMS)
Standby Mode: 0.1uA
150mA output current for each channel
25uA Operating Supply Current per channel
High Ripple Rejection: 65dB@1KHz(Typ.)
Low 200mV dropout at 100mA load
Excellent Line Regulation: 0.05%/V
Built-in chip Enable Circuit
Independent Shutdown Controls
Output Voltage Range: 1.2V~5.0V
Output Current Limit
Highly Accurate: ±2% (±1% customized)
Available in SOT-26 Package
APPLICATION
Power Source for Cellular Phones and various
kind of PCs
Battery Powered Equipment
Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
Reference Voltage Source
Regulation after Switching Power
Notebook and Handheld equipment
Wireless LAN, Bluetooth, GPS Receivers
Cordless Phones
Radio Communication Equipment
Typical Application
REV1.2 - DEC 2006 RELEASED – DEC 2008 REVISED -
-1-




A6155 pdf, 반도체, 판매, 대치품
AiT Semiconductor Inc.
www.ait-ic.com
A6155
LOW DROPOUT VOLTAGE REGULATOR
150mA DUAL OUTPUT CMOS LOW NOISE
ELECTRICAL CHARACTERISTICS
Test Conditions: C1=1uF, C2=C3==2.2uF, TA=25oC, unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max Unit
VIN Input Voltage
1.5 8 V
VOUT
Output Voltage
VIN=Set VOUT+1V
VOUT
VOUT
V
1mA≦IOUT≦30mA
x0.98
x1.02
IOUT (Max)
Max Output Current
VIN-VOUT=1V
150
mA
Dropout
Input-Output Voltage
Refer to the Electrical Characteristics by output voltage
Voltage
Differential
ΔVOUT
Line Regulation
IOUT=40mA
0.05 0.2
%/V
ΔVIN x VOUT
1.6V≦Vin≦8V
ΔVOUT/ΔIOUT Load Regulation
VIN=Set VOUT+1V
12 40
mV
1mA≦IOUT≦80mA
Iss Supply Current
VIN=Set VOUT+1V
25 50
uA
ISTANDBY
Supply Current (Standby) VIN=Set VOUT+1V,
0.1 1.0
uA
VCE=GND
ΔVOUT
Output Voltage
IOUT =30mA
±100
ppm/oC
ΔT x VOUT
Temperature Coefficiency
PSRR
Ripple Rejection
F=1KHz,
65 dB
Ripple=0.5Vp-p
VIN=Set VOUT+1V
ILIM Short Current Limit
VOUT =0V
20 mA
Rpd CE Pull down Resistance
2.0 5.0 10.0
VCEH
CE Input Voltage “H”
1.5 VIN V
VCEL
CE Input Voltage “L”
0 0.25 V
en Output Noise
BW=10Hz~100KHz
27 uVRMS
ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE
Output Voltage
VOUT (V)
VOUT =1.5V
VOUT =1.6V
VOUT =1.7V
1.8V≦VOUT≦2.0
2.1V≦VOUT≦2.7
2.8V≦VOUT≦4.0
Condition
IOUT =120mA
Dropout Voltage, VDIF (V)
Typ.
0.38
0.36
0.34
0.32
0.28
0.22
REV1.2 - DEC 2006 RELEASED – DEC 2008 REVISED -
Max
0.70
0.65
0.60
0.55
0.60
0.35
-4-

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A6155 전자부품, 판매, 대치품
AiT Semiconductor Inc.
www.ait-ic.com
BLOCK DIAGRAM
A6155
LOW DROPOUT VOLTAGE REGULATOR
150mA DUAL OUTPUT CMOS LOW NOISE
REV1.2 - DEC 2006 RELEASED – DEC 2008 REVISED -
-7-

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