MP20249 Datasheet: 200mA Linear Regulator





MP20249 200mA Linear Regulator Datasheet

Part Number MP20249
Description 200mA Linear Regulator
Manufacture MPS
Total Page 12 Pages
PDF Download Download MP20249 Datasheet PDF

Features: The Future of Analog IC Technology MP20 249 Dual, Ultra-Low Noise, High PSRR 20 0mA Linear Regulator DESCRIPTION The M P20249 is a dual-channel, ultra-low noi se, low dropout and high PSRR linear re gulator. Fixed output voltage options a re available between 1.2V to 3.3V with 1% accuracy by operating from a +2.3V t o +6.0V input. It is designed to delive r up to 200mA of load current at each c hannel. Dropout voltage is only 75mV at full load. The MP20249 uses internal P MOSFETS as pass elements, which consume 125µA supply current (both LDOs on) a t no load condition. With new innovativ e design techniques, the MP20249 can ac hieve an output voltage noise as low as 16µVRMS without using a bypass capaci tor at each channel. The MP20249 is des igned and optimized to work with smallv alue, low-cost ceramic capacitors, maki ng it ideal for applications with space -constraints. It typically requires onl y 1µF of output capacitance for stabil ity with any load at each channel. The EN1 and EN2 pins control ea.

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The Future of Analog IC Technology
MP20249
Dual, Ultra-Low Noise, High PSRR
200mA Linear Regulator
DESCRIPTION
The MP20249 is a dual-channel, ultra-low noise,
low dropout and high PSRR linear regulator.
Fixed output voltage options are available
between 1.2V to 3.3V with 1% accuracy by
operating from a +2.3V to +6.0V input. It is
designed to deliver up to 200mA of load current
at each channel. Dropout voltage is only 75mV at
full load. The MP20249 uses internal
PMOSFETS as pass elements, which consume
125µA supply current (both LDOs on) at no load
condition. With new innovative design techniques,
the MP20249 can achieve an output voltage
noise as low as 16µVRMS without using a
bypass capacitor at each channel. The MP20249
is designed and optimized to work with small-
value, low-cost ceramic capacitors, making it
ideal for applications with space-constraints. It
typically requires only 1µF of output capacitance
for stability with any load at each channel.
The EN1 and EN2 pins control each output
respectively. When both channels shutdown
simultaneously, the chip is turned off and
consumes nearly zero operation current, which is
suitable for battery-power devices. The MP20249
features current limit and over-temperature
protection.
The MP20249 also has an output discharge
function that controls the quick discharging of the
output capacitor.
It is available in a miniature 6-ball WLCSP
package.
FEATURES
Input Voltage Range: 2.3V to 6.0V
Two LDOs in a 1.0x1.5mm WLCSP Package
Up to 200mA Output Current (Per Channel)
Dual Enable Pins Control Each Output
16µVRMS Output Noise (100Hz-1kHz)
Bandwidth with No Bypass Capacitor
required
High PSRR: 65dB @ 1kHz
Low dropout: 60mV @ 150mA Load
Stable with 1µF Ceramic Capacitor for Any
Load (Per Channel)
Very Fast Line and Load Transient Response
Output Discharge Function
Current Limit and Thermal Protection
APPLICATIONS
Cellular Mobile Phones
Digital Cameras
Handheld and Battery-powered Equipment
Wireless LAN
Post DC-to-DC Regulation
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
ADAM (Analog Digital Adaptive Modulation), AAM (….) areTrademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN=2.3V to 6V
1uF
A1 EN1
B2
VIN A2
VOUT1
MP20249
C1 EN2
C2
VOUT2
GND
B1
1uF
1uF
VOUT1=1.2V to 3.3V
VOUT2=1.2V to 3.3V
MP20249 Rev1.0
12/15/2010
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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