BL9180 Datasheet, PDF (1/13 Pages) SHANGHAI BELLING CO., LTD. – Dual,300mA Ultra-low Noise

BL9180
Dual,300mA Ultra-low Noise
CMOS LDO Regulator
FEATURES
Up to 300mA Output Current(Each LDO)
Dual Shutdown Pins Control Each Output
90uA Operating supply current per LDO
Excellent Line regulation:0.05%/V
Low Dropout:220mV@300mA
High Power Supply Rejection Ratio
Wide Operating Voltage Range:2.0V to 6.0V
1.2V to 3.3V Factory-Preset Output
High Accuracy: ±1% or ±2%
Internal Pulled down(8 MΩ)resistor
Current Limiting and Thermal Protection
Two LDOs in SOT-23-6 and ESOP-8 Package
RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
Cellular and Smart Phones
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards and Wireless LAN
MP3/MP4/MP5 Players
Portable Information Appliances
DESCRIPTION
The BL9180 dual, low noise, low-dropout regulator
supplying up to 300mA output current at each
channel. The output voltage for each regulator is set
independently by trimming. Voltages are selectable
in 50mV steps within a range of 1.2V to 3.3V by
operating from a 2V to 6V input. The BL9180
includes two independent logic-controlled shutdown
inputs and allows the output of each regulator to be
turned off independently. When both outputs
shutdown simultaneously, the chip will be turn off
and consumes nearly zero operation current which
is suitable for battery-power devices.
The BL9180 includes high accuracy voltage
reference, error amplifier, current limit circuit and
output driver module.
The BL9180 has excellent load and line transient
response and good temperature characteristics,
which can assure the stability of chip and power
system. And it uses trimming technique to
guarantee output voltage accuracy within ±1% or
±2%. The BL9180 is available in SOT-23-6 and
ESOP-8 package which is Lead(Pb)-free.
ORDERING INFORMATION
BL9180 X X X XX
Package:
RA:SOT-23-6A
RB:SOT-23-6B
EP:ESOP-8
Features:
P:Standard(default, lead free)
C:Customized
Output Voltage Accuracy
A:±1%
B:±2%
Output Voltage
A: 1.3V(Output1),2.8V(Output2)
B: 1.5V(Output1),3.0V(Output2)
C: 1.8V(Output1),2.5V(Output2)
D: 1.8V(Output1),2.8V(Output2)
E: 2.5V(Output1),1.8V(Output2)
F: 2.8V(Output1),1.8V(Output2)
G: 2.8V(Output1),3.0V(Output2)
H: 2.8V(Output1),3.3V(Output2)
I: 3.0V(Output1),1.5V(Output2)
J: 3.3V(Output1),2.8V(Output2)
K: 3.3V(Output1),3.3V(Output2)
L:2.8V(Output1),1.2V(Output2)
M:1.8V(Output1),3.3V(Output2)
N:1.5V(Output1),3.3V(Output2)
O: 1.2V(Output1),3.3V(Output2)
TYPICAL APPLICATION
BL9180 XXX RB
1
6
EN1 VOUT1
VIN
2
5
VDD GND
3 _{EN2 VOUT2} 4
1uF
BL9180
VOUT1
1uF
VOUT2
1uF
Application hints:
Output capacitor (C_OUT≥2.2uF) is recommended
in BL9180 applications to assure the circuit’s
stability for output voltage ≤ 1.8V.
PPMIC BU
BL9180 Rev 2.1
8/2010
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