LESHAN RADIO COMPANY, LTD.
150mA D
UAL
O
UTPUT
C
MOS
L
OW
N
OISE
LOW-DROPOUT VOLTAGE REGULATOR
LR6155
Description
The LR6155 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 1.3V to 5.0V. Typical output noise is
27uV
RMS
, and PSRR is 65dB at 1KHz.
The
LR6155
includes two independent
logic-controlled shutdown inputs and allows the
output of each regulator to be turned of
independently.
The
LR6155
includes high accuracy voltage
reference, error amplifier, current limit circuit and
output driver module.
The LR6155 has excellent load and line transient
response and good temperature characteristics,
which can assure the stability of chip and power
system and LR6155 uses trimming technique to
guarantee output voltage accuracy within ±2%.
Features
Low Output Noise (27uV
RMS
)
Standby Mode: 0.1uA
150mA output current for each channel
25uA Operating Supply Current per channel
High Ripple Rejection: 65dB@1KHz(Typ.)
Low 130mV dropout at 100mA load
Excellent Line Regulation: 0.05%/V
Built-in chip Enable Circuit
Independent Shutdown Controls
Output Voltage Range: 1.3V~5.0V
250mA Output Current Limit
Highly Accurate: ± 2% ( ±1% customized)
TSOP-6 Package
W
declare that the material of product
We
H
compliance with RoH S requirements.
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
C
IN
1uF
EN2
V
OUT2
4
3
C
L2
1uF
Typical Application
EN1
V
OUT1
6
1
2
LR6155
V
IN
V
SS
5
C
L1
1uF
Ver 2.0 Apr 2010
1/9
LESHAN RADIO COMPANY, LTD.
Absolute Maximum Ratings
Max Input Voltage
Junction Temperature(T
J
)
Output Current
Power Dissipation (TSOP-6)
Storage Temperature (Ts)
Lead Temperature and Time
8V
125
o
C
200mA
400mW
-45
o
C~150
o
C
260
o
C, 10S
Stresses beyond 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.
Electrical Characteristics
Test Conditions: C1=C2=C3=1uF, T
A
=25
o
C, unless otherwise noted.
Symbol
V
IN
V
OUT
I
OUT
(Max)
Dropout
Voltage
∆V
OUT
∆V
IN
x V
OUT
∆V
OUT
/∆I
OUT
Iss
I
STANDBY
∆V
OUT
∆T
x V
OUT
PSRR
Load Regulation
Parameter
Input Voltage
Output Voltage
V
IN
=Set V
OUT
+1V
Conditions
Min
1.5
V
OUT
x0.98
150
Typ
Max
6
V
OUT
x1.02
mA
Unit
V
V
≤
≤
1mA≦I
OUT
≦30mA
Max Output Current
Input-Output Voltage
Differential
Line Regulation
I
OUT
=40mA
V
IN
-V
OUT
=1V
Refer to the Electrical Characteristics by output voltage
0.05
0.2
%/V
≤
≤
1.6V≦Vin≦8V
V
IN
=Set V
OUT
+1V
1mA≦I
OUT
≦80mA
≤
≤
Supply Current
Supply Current (Standby)
V
IN
=Set V
OUT
+1V
V
IN
=Set V
OUT
+1V,
V
CE
=GND
Output Voltage
Temperature Coefficiency
Ripple Rejection
F=1KHz,
Ripple=0.5Vp-p
V
IN
=Set V
OUT
+1V
65
dB
I
OUT
=30mA
±100
ppm/
o
C
25
0.1
50
1.0
uA
uA
12
40
mV
V
CEH
V
CEL
en
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
BW=10Hz~100KHz
1.5
0
27
V
IN
0.25
V
V
uV
RMS
Ver 2.0 Apr 2010
3/9
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