LR6155 Datasheet, PDF (1/9 Pages) Leshan Radio Company – 150mA DUAL OUTPUT CMOS LOW NOISE LOW-DROPOUT VOLTAGE REGULATOR

LESHAN RADIO COMPANY, LTD.
150mA DUAL OUTPUT CMOS LOW NOISE
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
z Low Output Noise (27uV_RMS)
z Standby Mode: 0.1uA
z 150mA output current for each channel
z 25uA Operating Supply Current per channel
z High Ripple Rejection: 65dB@1KHz(Typ.)
z Low 130mV dropout at 100mA load
z Excellent Line Regulation: 0.05%/V
z Built-in chip Enable Circuit
z Independent Shutdown Controls
z Output Voltage Range: 1.3V~5.0V
z 250mA Output Current Limit
z Highly Accurate: ±2% ( ±1% customized)
z TSOP-6 Package
z ^{WWe declare that the material of product}
compliance with RoHH S requirements.
Application
z Power Source for Cellular Phones and
various kind of PCs
z Battery Powered Equipment
z Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
z Reference Voltage Source
z Regulation after Switching Power
z Notebook and Handheld equipment
z Wireless LAN, Bluetooth, GPS Receivers
z Cordless Phones
z Radio Communication Equipment
Typical Application
EN1 VOUT1
LR6155
VIN VSS
CIN
1uF
EN2 VOUT2
CL1
1uF
CL2
1uF
Ver 2.0 Apr 2010
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