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PDF MIC94300 Data sheet ( Hoja de datos )

Número de pieza MIC94300
Descripción 200mA Switch
Fabricantes Micrel Semiconductor　
Logotipo Micrel Semiconductor Logotipo



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No Preview Available ! MIC94300 Hoja de datos, Descripción, Manual

MIC94300
200mA Switch
with Ripple Blocker™ Technology
General Description
The MIC94300 is an integrated load switch that
incorporates Micrel’s Ripple Blocker™ active filter
technology. The MIC94300 provides high-frequency ripple
attenuation (switching noise rejection) for applications
where a switching noise cannot be tolerated by sensitive
downstream circuits such as in RF applications. A low-
voltage logic enable pin disconnects the pass element and
places the MIC94300 into a low current-shutdown state
when disabled.
The MIC94300 operates from an input voltage of 1.8V to
3.6V, allowing true load switching of low-voltage power
rails in any electronic device. The output voltage (VOUT) is
set at a fixed drop (typically 170mV) from the input voltage
(VOUT = VIN – 170mV). This maintains high efficiency
independent of given load conditions and currents.
Packaged in a 0.88mm x 0.88mm 4-ball CSP or 4-pin
1.2mm x 1.6mm Thin MLF® package, the MIC94300 has a
junction operating temperature range of −40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• 1.8V to 3.6V input voltage range
• Active noise rejection over a wide frequency band
− >60dB from 40kHz to 5MHz
• Rated to 200mA output current
• Current-limit and thermal-limit protected
• Ultra-small 0.88mm x 0.88mm 4-ball CSP
• 1.2mm x 1.6mm, 4-pin Thin MLF®
• Logic-controlled enable pin
• −40°C to +125°C junction temperature range
Applications
• Smart phones
• Tablet PC/notebooks and webcams
• Digital still and video cameras
• Videoconferencing
• Bar-code scanners
• Global positioning systems
• Automotive and industrial applications
_________________________________________________________________________________________________
Typical Application
PSRR COUT = 1µF
0
-10
-20
-30
-40 VIN = 3.6V
-50
-60 VIN = 1.8V
-70
-80 VIN = 2.5V
-90
VIN = VIN(NOM) + 40mVpp
LOAD = 100mA
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.0E0+K05 1.1EM+06 11.E0M+07
FREQUENCY (Hz)
Ripple Blocker 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
February 2012
M9999-020312-A

1 page




MIC94300 pdf
Micrel, Inc.
Typical Characteristics
PSRR COUT = 0.47µF
0
-10
-20
-30 IOUT = 200mA
-40 IOUT = 100mA
-50
-60
-70
-80 IOUT = 10mA
-90 VIN = 3.6V+40mVpp
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
PSRR COUT = 0.47µF
0
-10
-20
-30
-40 VIN = 3.6V
-50
-60
-70 VIN = 1.8V
VIN = 2.5V
-80
-90
VIN = VIN(NOM) + 40mVpp
LOAD = 100mA
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
PSRR COUT = 1µF
0
-10
-20
-30
-40 VIN = 3.6V
-50
-60 VIN = 1.8V
-70
-80 VIN = 2.5V
-90
VIN = VIN(NOM) + 40mVpp
LOAD = 100mA
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.0E0+K05 1.E1M+06 11.E0+M07
FREQUENCY (Hz)
PSRR COUT = 2.2µF
0
-10
-20
-30
-40
-50
IOUT = 100mA
IOUT = 200mA
-60
-70
-80 IOUT = 10mA
-90 VIN = 3.6V + 40mVpp
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
PSRR COUT = 4.7µF
0
-10
-20
-30
IOUT = 100mA
-40 IOUT = 200mA
-50
-60
-70
-80 IOUT = 10mA
-90 VIN = 3.6V+40mVpp
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
PSRR COUT = 4.7µF
0
-10
-20
-30
-40 VIN = 1.8V
-50
-60
-70 VIN = 2.5V
-80 VIN = 3.6V
-90
VIN = VIN + 40mVpp
LOAD = 100mA
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
MIC94300
PSRR COUT = 1µF
0
-10
-20
-30
-40
IOUT = 200mA
-50
IOUT = 100mA
-60
-70
IOUT = 10mA
-80
-90 VIN = 3.6V + 40mVpp
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
PSRR COUT = 2.2µF
0
-10
-20
-30
-40 VIN = 3.6V
-50
-60
-70 VIN = 1.8V
-80
-90
VIN = VIN(NOM) + 40mVpp
LOAD = 100mA
VIN = 2.5V
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
PSRR COUT = 10µF
0
-10
-20
-30 IOUT = 100mA
-40 IOUT = 200mA
-50
-60
-70
IOUT = 10mA
-80
-90 VIN = 3.6V + 40mVpp
-100
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05 1.E1M+06 1.1E0+M07
FREQUENCY (Hz)
February 2012
5 M9999-020312-A

5 Page





MIC94300 arduino
Micrel, Inc.
Evaluation Board Schematic
MIC94300
Bill of Materials
Item Part Number
C1, C2 GRM155R61A105KE15D
U1 MIC94300YCS
Notes:
1. Murata Tel: www.murata.com.
2. Micrel, Inc.: www.micrel.com.
Manufacturer
Murata(1)
Micrel, Inc.(2)
Description
Capacitor, 1µF Ceramic, 10V, X7R, Size 0402
200mA Ripple Blocker™ Voltage Follower
Qty.
2
1
February 2012
11 M9999-020312-A

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