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MIC23250-C4YMTTR

Description
1A SWITCHING REGULATOR, 4000kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
CategoryPower/power management    The power supply circuit   
File Size870KB,20 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance  
Download Datasheet Parametric View All

MIC23250-C4YMTTR Overview

1A SWITCHING REGULATOR, 4000kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10

MIC23250-C4YMTTR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeDFN
package instructionHVSON,
Contacts10
Manufacturer packaging codeMLF
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresALSO OPERATES AT 1V; ALSO HAS PFM CONTROL TECHNIQUE
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage2.7 V
Nominal input voltage3.6 V
JESD-30 codeS-PDSO-N10
JESD-609 codee4
length2 mm
Humidity sensitivity level1
Number of functions1
Number of terminals10
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current1 A
Nominal output voltage1.2 V
Package body materialPLASTIC/EPOXY
encapsulated codeHVSON
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.6 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency4000 kHz
Temperature levelAUTOMOTIVE
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formNO LEAD
Terminal pitch0.4 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width2 mm
MIC23250
4MHz Dual 400mA Synchronous Buck
Regulator with HyperLight Load™
General Description
Features
The MIC23250 is a high efficiency 4MHz dual 400mA
Input voltage: 2.7V to 5.5V
HyperLight Load™
synchronous buck regulator with HyperLight Load™ mode.
Dual output current 400mA/400mA
HyperLight Load™ provides very high efficiency at light
Up to 94% peak efficiency and 85% efficiency at 1mA
loads and ultra-fast transient response which is perfectly
33µA dual quiescent current
suited for supplying processor core voltages. An additional
1µH inductor with a 4.7µF capacitor
benefit of this proprietary architecture is very low output
4MHz in PWM operation
ripple voltage throughout the entire load range with the use
of small output capacitors. The fixed output MIC23250 has
Ultra fast transient response
a tiny 2mm x 2mm Thin MLF
®
package that saves
Low voltage output ripple
precious board space by requiring only 6 additional
20mVpp in HyperLight Load™ mode
external components to drive both outputs up to 400mA
3mV output voltage ripple in full PWM mode
each.
0.01µA shutdown current
The device is designed for use with a 1µH inductor and a
Fixed output:10-pin 2mm x 2mm Thin MLF®
4.7µF output capacitor that enables a sub-1mm height.
Adjustable output:12-pin 2.5mm x 2.5mm Thin MLF®
The MIC23250 has a very low quiescent current of 33µA
–40°C to +125°C junction temperature range
with both outputs enabled and can achieve over 85%
efficiency at 1mA. At higher loads the MIC23250 provides a
constant switching frequency around 4MHz while providing
Applications
peak efficiencies up to 94%.
Mobile handsets
The MIC23250 fixed output voltage option is available in a
Portable media players
10-pin 2mm x 2mm Thin MLF
®
. The adjustable output
Portable navigation devices (GPS)
options is available in a 12-pin 2.5mm x 2.5mm Thin MLF
®
.
WiFi/WiMax/WiBro modules
The MIC23250 is designed to operate over the junction
Digital cameras
operating range from –40°C to +125°C.
Wireless LAN cards
Data sheets and support documentation can be found on
USB Powered Devices
Micrel’s web site at: www.micrel.com.
____________________________________________________________________________________________________________
Typical Application
Efficiency V
OUT
= 1.8V
100
VIN = 3.0V
90
VIN = 2.7V
80
70
VIN = 4.2V
60
50
40
30
20
10
0
1
L = 1µH
C
OUT
= 4.7µF
10
100
1000
OUTPUT CURRENT (mA)
VIN = 3.6V
HyperLight Load is a trademark of Micrel, Inc.
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
November 2008
M9999-111108-D
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