Document
AiT Semiconductor Inc.
www.ait-ic.com
A6505
LOW DROPOUT VOLTAGE REGULATOR DUAL 500mA HIGH PSRR LINEAR REGULATOR
DESCRIPTION
FEATURES
A6505 dual, low-noise, low-dropout regulator delivers Two low dropout voltage regulators
at least 500mA of continuous output current. The 500mA output current for each LDO
output voltage for each regulator is set independently by trimming. Voltages are selectable in 100mV steps
Low output noise (50uVRMS) Low dropout Voltage:0.08V@150mA(Typ.)
within a range of 1.2V to 4.5V. The A6505 includes Standby Mode: 0.1uA
two independent logic-controlled shutdown inputs and High Ripple Rijection:72dB@1KHz (Typ.)
allows the output of each regulator to be turned of Excellent Line regulation: 0.05%/V
independently.
Independent Shutdown controls
1.2V to 4.5V Factory-Preset Output
A6505 includes high accuracy voltage reference, error Output Current Limit
amplifier, current limit circuit and output driver module. Highly Accurate: ±2%
Available in SOT-26 package.
A6505 has excellent load and line transient response
APPLICATION
and good temperature characteristics, which can
assure the stability of chip and power system. And it Cellular phones
uses trimming technique to guarantee output voltage Cordless phones and radio communication
accuracy within ±2%.
equipment
Battery Powered equipment
A6505 is available in SOT-26 package.
Notebook and hand-hold equipment
Wireless LAN
ORDER INFORMATION
GPS receivers
Package Type
Part Number
SOT-26
A6505E6R-X E6
A6505E6VR-X
X:OutputVoltage
Note
See output voltage portfolio R: Tape & Reel
V: Halogen free Package AiT provides all RoHS products Suffix “V” means Halogen free Package
TYPICAL APPLICATION
NOTE: Input capacitor (CIN=1uF) and Output capacitor (COUT=1uF/3.3uF) are recommended in all application circuit.
REV1.0
- MAY 2012 RELEASED -
-1-
AiT Semiconductor Inc.
www.ait-ic.com
PIN DESCRIPTION
A6505
LOW DROPOUT VOLTAGE REGULATOR DUAL 500mA HIGH PSRR LINEAR REGULATOR
Pin # 1 2 3 4 5 6
Symbol VOUT2 VSS CE2 CE1
VIN VOUT1
Top View
CH2 Output Voltage Ground Pin Chip Enable2 Chip Enable1 Supply Voltage Input CH1 Output Voltage
Function
OUTPUT VOLTAGE PORTFOLIO
Output Voltage Code
OUT1 OUT2
Part Number
Pb Free
GREEN
B 1.5 2.8 A6505E6R-B A6505E6VR-B
C 1.5 3.0 A6505E6R-C A6505E6VR-C
D 1.5 3.3 A6505E6R-D A6505E6VR-D
E 1.5 4.0 A6505E6R-E A6505E6VR-E
G 1.8 2.5 A6505E6R-G A6505E6VR-G
H 1.8 2.8 A6505E6R-H A6505E6VR-H
I 1.8 3.0 A6505E6R-I A6505E6VR-I
J 1.8 3.3 A6505E6R-J A6505E6VR-J
Code
Output Voltage OUT1 OUT2
Part Number
Pb Free
GREEN
M 2.8 1.8 A6505E6R-M A6505E6VR-M
O 2.8 2.8 A6505E6R-O A6505E6VR-O
P 2.8 3.0 A6505E6R-P A6505E6VR-P
Q 3.0 2.5 A6505E6R-Q A6505E6VR-Q
R 3.0 3.0 A6505E6R-R A6505E6VR-R
S 3.0 3.3 A6505E6R-S A6505E6VR-S
T 3.3 1.8 A6505E6R-T A6505E6VR-T
U 3.3 3.3 A6505E6R-U A6505E6VR-U
REV1.0
- MAY 2012 RELEASED -
-2-
AiT Semiconductor Inc.
www.ait-ic.com
A6505
LOW DROPOUT VOLTAGE REGULATOR DUAL 500mA HIGH PSRR LINEAR REGULATOR
ABSOLUTE MAXIMUM RATINGS
Max Input Voltage
8V
TJ, Operating Junction Temperature
125°C
TA, Ambient Temperature
-40°C ~ 85°C
Power Dissipation
SOT-26
250mW
TS, Storage Temperature
-40°C ~ 150°C
Lead Temperature & Time
260°C,10S
Stresses above may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED WORK CONDITIONS
Input Voltage Range Ambient Temperature
Max. 6V -40°C ~ 85°C
REV1.0
- MAY 2012 RELEASED -
-3-
AiT Semiconductor Inc.
www.ait-ic.com
A6505
LOW DROPOUT VOLTAGE REGULATOR DUAL 500mA HIGH PSRR LINEAR REGULATOR
ELECTRICAL CHARACTERISTICS
Test Conditions: CIN=1uF,COUT=3.3uF,TA=25°C, unless otherwise specified.
Parameter
Symbol
Conditions
Min
Input Voltage
VIN
1.2
Output Voltage
VOUT
VIN=Set, VOUT+1V, 1mA≤IOUT≤30mA
VOUT x 0.98
Maximum Output Current
IOUT(MAX)
600
IOUT = 50mA
-
Dropout Voltage VOUT ≥ 2.8V
VDROP
IOUT = 100mA IOUT = 150mA
-
IOUT = 400mA
-
Line Regulation
ΔVOUT ΔVIN × VOUT
IOUT = 40mA, 2.8V≤VIN≤6V
-
Load Regulation
ΔVOUT × ΔIOUT
VIN=Set VOUT+1V 1mA≤IOUT≤500mA
-
Supply Current
ISS VIN=Set VOUT+1V
-
Supply Current (Standby)
ISTANDBY
VIN=Set VOUT+1V VCE=0V
-
Output Voltage Temperature Coefficiency
ΔVOUT ΔT × VOUT
VIN=Set VOUT+1V, IOUT=30mA
-
Ripple Rejection
PSRR
F=1000Hz, Ripple=0.5VP-P VIN=Set VOUT+1V
-
Short Current Limit
ILIM VOUT=0V
-
CE Input Voltage “H”
VCEH
1.4
CE Input Voltage “L”
VCEL
-
Output Noise
en BW=10Hz~100kHz
-
Typ. -
VOUT1
25 50 75 220 0.05
100 30 0.1
±50
72 500
50
Max 6
VOUT x 1.02
Units V
V
- mA
40 75
mV 115 280
0.1 %/V
150 mV 50 uA 1.0 uA
- ppm/°C
- dB
0.25 -
mA V V uVRMS
REV1.0
- MAY 2012 RELEASED -
-4-
AiT Semiconductor Inc.
www.ai.