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부품번호 | MIC94300 기능 |
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기능 | 200mA Switch | ||
제조업체 | Micrel Semiconductor | ||
로고 | |||
전체 13 페이지수
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
Micrel, Inc.
MIC94300
Absolute Maximum Ratings(1)
Input Voltage (VIN) ........................................... −0.3V to +4V
Output Voltage (VOUT). .................................... −0.3V to +4V
Enable Voltage (VEN)..................−0.3V to VIN + 0.3V or +4V
Lead Temperature (soldering, 10s)............................ 260°C
SEStoDraRgeatTinegm(3p)..e..r.a..t.u..r.e...(.T..S..)....................................................−..6..5..°.C....t.o...+..1..5. 30k°CV
Operating Ratings(2)
Input Voltage (VIN)........................................ +1.8V to +3.6V
Enable Voltage (VEN).............................................. 0V to VIN
Junction Temperature (TJ) ........................ –40°C to +125°C
Junction Thermal Resistance
0.88mm x 0.88mm WLCSP (θJA) .....................250°C/W
1.2mm x 1.6mm Thin MLF® (θJA).....................173°C/W
Electrical Characteristics(4)
VIN = VEN = 3.6V; IOUT = 100µA; COUT = 1µF; TA = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min. Typ.
Input Voltage
1.8
Voltage Drop
VIN Ripple Rejection
(PSRR)
Total Output Noise
VIN − VOUT, −40°C ≤ TJ ≤ +85°C
f = 20kHz, IOUT = 100mA
f = 100kHz to 5MHz, IOUT = 100mA
f = 10Hz to 100kHz
170
45
60
98
Current Limit
Turn-On Time
VOUT = 0V
EN controlled
200 315
40
Load Regulation
100µA to 100mA
10
Ground Current
Shutdown Current
Enable
IOUT = 100µA
VEN = 0V
138
0.2
Input Logic LOW
Input Logic HIGH
1.0
Input Current
0.01
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
Max.
3.6
250
400
150
200
0.4
1
Units
V
mV
dB
µVRMS
mA
µs
mV
µA
µA
V
V
µA
February 2012
4 M9999-020312-A
4페이지 Micrel, Inc.
Typical Characteristics (Continued)
Current Limit
vs. Input Voltage
400
375
350
325
300
275
250
225
CIN = COUT = 1μF
200
1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
INPUT VOLTAGE (V)
Output Noise
Spectral Density
10
1
0.1
VIN = VEN = 2.91V
CIN = COUT = 1.0µF
NOISE (10Hz to 100kHz) = 98.5µVRMS
0.01
1.E1+001 1.1E0+002 1.E1K+03 1.1E0+K04 11.E00+K05
FREQUENCY (Hz)
1.1EM+06
MIC94300
February 2012
7 M9999-020312-A
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
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