MIC94030/94031
TinyFET
®
P-Channel MOSFET
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
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 0.75 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
JA
(improved heat
dissipation) and makes analog switch applications
practical.
The small size, low threshold, and low R
DS(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
• 0.75 typical on-resistance
– at 4.5V gate-to-source voltage
• 0.45 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
Part Number
Standard Marking Pb-Free Marking
Junction Temp. Range Package
MIC94030BM4 P30 MIC94030YM4 P30 –55° to +150°C SOT-143
MIC94031BM4 P31 MIC94031YM4 P31 –55° to +150°C SOT-143
Pin Configur ation
Substrat
e
SourceGate
Drain
P3x
Part
Identification
P3x
SOT-143 (M4)
Typical PCB Lay out
S
D
G
SS
PCB heat sin
k
p
lane improve
s
heat dissipatio
n
PCB traces
Micrel, Inc. MIC94030/MIC94031
July 2006
2
M9999-071106
Functional Diagrams Schematic Symbol
Ga t e
Source
Drain
Substrat
e
G
S
D
SS
G
S
D
SS
~500k
Internal
gate-to-source
pull-up resistor
Schematic Symbol MIC94030 MIC94031
Micrel, Inc. MIC94030/MIC94031
July 2006
3
M9999-071106
Absolute Maximum Ratings(1)
Voltage and current values are negative. Signs not shown for clarity.
Drain-to-Source Voltage (pulse).....................................16V
Gate-to-Source Voltage (pulse). ....................................16V
Continuous Drain Current
T
A
= 25°C ...................................................................1A
T
A
= 100°C..............................................................0.5A
Operating Junction Temperature ..............–55°C to +150°C
Storage Temperature ................................–55°C to +150°C
Total Power Dissipation
T
A
= 25°C...........................................................568mW
T
A
= 100°C.........................................................227mW
Thermal Resistance
θ
JA
....................................................................220°C/W
θ
JC
....................................................................130°C/W
Lead Temperature
1/16” from case, 10s.......................................... +300°C
Electrical Characteristics
Voltage and current values are negati ve. Signs not shown fo r clarity.
Symbol Parameter Condition (Note 1) Min Typ Max Units
V
BDSS
Drain-Source Breakdown Voltage V
GS
= 0V, I
D
= 250µA 13.5 V
V
GS
Gate Threshold Voltage V
DS
= V
GS
, I
D
= 250µA 0.6 1.0 1.4 V
I
GSS
Gate-Body Leakage V
DS
= 0V, V
GS
= 12V, Note 2, Note 3 1 µA
R
GS
Gate-Source Resistor V
DS
= 0V, V
GS
= 12V, Note 2, Note 4 500 750 1000 k
C
ISS
Input Capacitance V
GS
= 0V, V
DS
= 12V 100 pF
I
DSS
Zero Gate Voltage Drain Current V
DS
= 12V, V
GS
= 0V 25 µA
V
DS
= 12V, V
GS
= 0V, T
J
= 125°C 0.010 250 µA
I
D(ON)
On-State Drain Current V
DS
= 10V, V
GS
= 10V, Note 5 6.3 A
R
DS(ON)
Drain-Source On-State Resist V
GS
= 10V, I
D
= 100mA
V
GS
= 4.5V, I
D
= 100mA
V
GS
= 2.7V, I
D
= 100mA
0.45
0.75
1.20
1.00
g
FS
Forward Transconductance V
DS
= 10V, I
D
= 200mA, Note 5 480 mS
Notes:
1. T
A
= 25°C unless noted. Substrate connected to source for all conditions.
2. ESD gate protection diode conducts during positive gate-to-source voltage excursions.
3. MIC94030 only.
4. MIC94031 only.
5. Pulse Test: Pulse Width 80µsec, Duty Cycle 0.5%.
Micrel, Inc. MIC94030/MIC94031
July 2006
4
M9999-071106
Typical Characteristics
0.00
0.25
0.50
0.75
1.00
1.25
1.50
0.0 0.5 1.0 1.5 2.0
R
DS(ON)
( )
I
D
(A)
On Resistance vs.
Drain Current at 25°C
V
G
=10V
V
G
=4.5V
80µs Pulse Test
0.00
0.25
0.50
0.75
1.00
1.25
1.50
0.0 0.5 1.0 1.5 2.0
R
DS(ON)
( )
I
D
(A)
On Resistance vs.
Drain Current at 125°C
V
G
=10V
V
G
=4.5V
80µs Pulse Test
0
20
40
60
80
100
120
140
160
0.0 0.5 1.0 1.5 2.0
DRAIN CURRENT (mA)
DRAIN-TO-SOURCE VOLTAGE (V)
Drain Characteris tics
2.0V
1.8V
1.6V
1.4V
V
GS
1.2V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
02468101214
DRAIN CURRENT (A)
DRAIN-TO-SOURCE VOLTAGE (V)
Drain Characteris tics
5.0V 4.5V
4.0V
3.5V
2.5V
2.0V
1.5V
1.0V
V
GS
300µs Pulse Test
0
1
2
3
4
5
6
02468101214
DRAIN CURRENT (A)
DRAIN-TO-SOURCE VOLTAGE (V)
Drain Characteris tics
V
GS
6V
5V
4V
3V
2V
1V
8V
9V
10V
80µs Pulse Test
Micrel, Inc. MIC94030/MIC94031
July 2006
5
M9999-071106
Typical Applications
Load
+5V
74HC04
On
Off
* Substrate must be
connected to sourc
e
S
SS*
D
G
MIC94030
Figure 1. Power Switch Application
Load
+12V
Open Drain
Output
* Substrate must be
connected to source
S
SS*
D
G
MIC94031
Internal
Resistor
Figure 2. Power Control Application
+12V
74C04
†
On
Off
* Substrate must be
connected to source
†
Use“C” version only.“HC”
versions not rated to 12
V
S
SS*
D
G
MIC94030
+8V
74C04
†
On
Off
S
SS*
D
G
MIC94030
Load
2M
A B Output
Off Off 0V
On Off +12V
Off On +8V
On On don’t!
A
B
+12V
Figure 3. Analog Switch Application
Micrel, Inc. MIC94030/MIC94031
July 2006
6
M9999-071106
Package Information
SOT-143 (M4)
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its
use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant
into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully
indemnify Micrel for any damages resulting from such use or sale.
© 1997 Micrel, Incorporated.
