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PDF MIC94031 Data sheet ( Hoja de datos )
| Número de pieza | MIC94031 | |
| Descripción | P-Channel MOSFET | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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MIC94030/94031
TinyFET® P-Channel MOSFET
General Description
The MIC94030 and MIC94031 are 4-terminal silicon gate
P-channel MOSFETs that provide low on-resistance in a
very small package.
Designed for high-side switch applications where space is
critical, the MIC94030/1 exhibits an on-resistance of
typically 0.75Ω at 4.5V gate-to-source voltage. The
MIC94030/1 also operates with only 2.7V gate-to-source
voltage.
The MIC94030 is the basic 4-lead P-channel MOSFET.
The MIC94031 is a variation that includes an internal gate
pull-up resistor that can reduce the system parts count in
many applications.
The 4-terminal SOT-143 package permits a substrate
connection separate from the source connection. This 4-
terminal configuration improves the θJA (improved heat
dissipation) and makes analog switch applications
practical.
The small size, low threshold, and low RDS(on) make the
MIC94030/1 the ideal choice for PCMCIA card sleep mode
or distributed power management applications.
Features
• 13.5V minimum drain-to-source breakdown
• 0.75Ω typical on-resistance
– at 4.5V gate-to-source voltage
• 0.45Ω typical on-resistance
– at 10V gate-to-source voltage
• Operates with 2.7V gate-to-source voltage
• Separate substrate connection for added control
• Industry’s smallest surface mount package
Applications
• Distributed power management
• PCMCIA card power management
• Battery-powered computers, peripherals
• Hand-held bar-code scanners
• Portable communications equipment
Ordering Information
Standard
MIC94030BM4
MIC94031BM4
Part Number
Marking
P30
Pb-Free
MIC94030YM4
P31 MIC94031YM4
Marking
P30
P31
Junction Temp. Range
–55° to +150°C
–55° to +150°C
Package
SOT-143
SOT-143
Pin Configuration
Drain Substrate
Part
Identification
P3x
P3x
Typical PCB Layout
D
PCB heat sink
plane improves
heat dissipation
SS
Gate Source
SOT-143 (M4)
GS
PCB traces
TinyFET is a registered trademark of Micrel, 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 2006
M9999-071106
1 page  
Micrel, Inc.
Typical Applications
SS*
+5V S D
MIC94030 G
On
Off
74HC04
* Substrate must be
connected to source
Figure 1. Power Switch Application
+12V
Open Drain
Output
Internal
Resistor G
S
MIC94031 D
SS*
MIC94030/MIC94031
July 2006
* Substrate must be
connected to source
Figure 2. Power Control Application
+12V
A
On
Off
SS*
SD
MIC94030 G
74C04†
A B Output
Off Off 0V
On Off +12V
Off On +8V
On On don’t!
+8V
B
On
Off
2M SS*
SD
+12V MIC94030 G
74C04†
* Substrate must be
connected to source
† Use“C” version only.“HC”
versions not rated to 12V
Figure 3. Analog Switch Application
5
M9999-071106
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MIC94031.PDF ] | |
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