MP20043 Datasheet, PDF (1/13 Pages) Monolithic Power Systems – Dual Channel, 300mA Linear Regulator With Programmable Output Voltage and Output Discharge

The Future of Analog IC Technology
MP20043
Dual Channel, 300mA Linear
Regulator With Programmable
Output Voltage and Output Discharge
DESCRIPTION
The MP20043 is a dual-channel, low noise, low
dropout and high PSRR linear regulator with
programmable output voltage. The output
voltage of MP20043 ranges from 1.2V to 3.3V
in 100mV increments and 2.5% accuracy by
operating from a +2.5V to +5.5V input. The
different output voltage options can be
programmed by setting the voltage of P1 and
P2 to VDD, GND or floating. There are 9
different voltage settings in one chip. Each
output channel can supply up to 300mA of load
current.
The MP20043 uses two internal PMOSs as the
pass devices, which consumes 150μA supply
current when both channels are enabled at no
load condition. The EN1 and EN2 pins control
each output respectively. When both channels
shutdown simultaneously, the chip turns off and
consumes nearly zero operation current which
is suitable for battery-power devices. The
MP20043 also features current limiting and over
temperature protection.
It is available in a TQFN8 (2mm×2mm) package
TYPICAL APPLICATION
FEATURES
 Programmable Output Voltage
 Up to 300mA Output Current (Each LDO)
 60mV Dropout at 100mA Load
 Dual Shutdown Pins Control Each Output
 75dB PSRR at 1kHz
 7μVRMS Low Noise Output
 Current Limiting and Thermal Protection
 Short Circuit Protection
 Two LDOs in TQFN8 (2mm×2mm) Package
 Output Load Discharge when Disabled
APPLICATIONS
 Cellular Phones
 Battery-powered Equipment
 Laptop, Notebook, and Palmtop Computers
 Hand-held Equipment
 Wireless LAN
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
V_IN
Chip Enable
VIN
VOUT1
MP20043
P1
P2
VOUT2
EN1
EN2
GND
V_OUT1
V_OUT2
MP20043 Rev.1.0
www.MonolithicPower.com
1
1/14/2013
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