BL9180
Dual,300mA Ultra-low Noise
CMOS LDO Regulator
FEATURES
DESCRIPTION
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Up to 300mA Output Current(Each LDO)
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.
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 Mꢀ)resistor
Current Limiting and Thermal Protection
Two LDOs in SOT-23-6 and ESOP-8 Package
RoHS Compliant and 100% Lead(Pb)-Free
The BL9180 includes high accuracy voltage
reference, error amplifier, current limit circuit and
output driver module.
APPLICATIONS
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Cellular and Smart Phones
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.
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards and Wireless LAN
MP3/MP4/MP5 Players
Portable Information Appliances
ORDERING INFORMATION
TYPICAL APPLICATION
BL9180 XXX RB
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
1
2
3
6
5
4
VOUT1
VOUT2
EN1 VOUT1
1uF
VIN
VDD
GND
EN2 VOUT2
BL9180
1uF
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)
1uF
Application hints:
Output capacitor (COUT≥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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