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MIC5315-GGCYMT

Description
Low Voltage Dual 300mA LDO with Voltage Select
File Size330KB,13 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
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MIC5315-GGCYMT Overview

Low Voltage Dual 300mA LDO with Voltage Select

MIC5315
Low Voltage Dual 300mA LDO
with Voltage Select
General Description
The MIC5315 is a high performance, dual low input
voltage, low dropout regulator with voltage select. Major
features include two 300mA LDOs, input voltage down to
1.7V, ultra low drop out of 85mV at full load, and voltage
select. Each LDO has its own low voltage input for system
flexibility. The low input voltages and low drop out
operation provides high efficiency by reducing the input to
output voltage step which minimizes the regulator power
loss. Voltage select is incorporated into the second output,
which reduces the output voltage to a lower level to further
save power while in stand-by mode.
Ideal for battery operated applications; the MIC5315 offers
1% accuracy and low ground current to increase light load
efficiency. The MIC5315 can also be put into a zero-off-
mode current state, drawing virtually no current when
disabled.
The MIC5315 is available in fixed output voltages in the
10-pin 2mm x 2mm Thin MLF
®
leadless package.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
300mA output current for each LDO
Dual low voltage regulator inputs: 1.7V to 5.5V
Low output voltage range: 0.8V to 2.0V
Ultra-low dropout voltage of 85mV @ 300mA
Voltage select function
Stable with 1µF ceramic output capacitors
Very fast transient response
Thermal shutdown and current limit protection
Tiny 10-pin 2mm x 2mm Thin MLF
®
package
Applications
Mobile Phones
GPS and Navigation Devices
Portable Media Players
Digital still and video cameras
PDAs
Portable electronics
___________________________________________________________________________________________________________
Typical Application
VI/O
MIC5315-xxyYMT
VBAT
MIC23031-1.8YMT
DC-to-DC
Converter
VIN1
VIN2
VBIAS
CIN
1µF
CBIAS
1µF
/VSC2
EN1
EN2
GND
VOUT1
VOUT2
VCORE1
VCORE2
CBYP
1µF
10nF
1µF
µProcessor
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
July 2008
M9999-070208-A

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