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Load Switch. MIC94045 Datasheet

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Load Switch. MIC94045 Datasheet






MIC94045 Switch. Datasheet pdf. Equivalent




MIC94045 Switch. Datasheet pdf. Equivalent





Part

MIC94045

Description

3A High Side Load Switch



Feature


MIC94044/5 28mΩ RDSON 3A High Side Loa d Switch in 1.2mm x 1.2mm MLF® Package General Description The MIC94044 and MIC94045 are high-side load switches de signed to operate from 1.7V to 5.5V inp ut voltage. The load switch pass elemen t is an internal 28mΩ RDSON P-channel MOSFET which enables the device to sup port up to 3A of continuous current. Ad ditionally, the load sw.
Manufacture

Micrel Semiconductor

Datasheet
Download MIC94045 Datasheet


Micrel Semiconductor MIC94045

MIC94045; itch supports 1.5V logic level control a nd shutdown features in a tiny 1.2mm x 1.2mm 4 pin MLF® package. The MIC94044 /5 provides a slew rate controlled soft -start turn-on of 1ms (typical) to prev ent an in-rush current event from pulli ng down the input supply voltage. The M IC94045 features an active load dischar ge circuit which switches in a 200Ω l oad when the switch i.


Micrel Semiconductor MIC94045

s disabled to automatically discharge a capacitive load. Internal level shift c ircuitry allows low voltage logic signa ls to switch higher supply voltages. Th e enable voltage can be as high as 5.5V and is not limited by the input voltag e. The MIC94044/5 .


Micrel Semiconductor MIC94045

.

Part

MIC94045

Description

3A High Side Load Switch



Feature


MIC94044/5 28mΩ RDSON 3A High Side Loa d Switch in 1.2mm x 1.2mm MLF® Package General Description The MIC94044 and MIC94045 are high-side load switches de signed to operate from 1.7V to 5.5V inp ut voltage. The load switch pass elemen t is an internal 28mΩ RDSON P-channel MOSFET which enables the device to sup port up to 3A of continuous current. Ad ditionally, the load sw.
Manufacture

Micrel Semiconductor

Datasheet
Download MIC94045 Datasheet




 MIC94045
MIC94044/5
28mRDSON 3A High Side Load Switch
in 1.2mm x 1.2mm MLF® Package
General Description
The MIC94044 and MIC94045 are high-side load switches
designed to operate from 1.7V to 5.5V input voltage. The
load switch pass element is an internal 28mRDSON
P-channel MOSFET which enables the device to support
up to 3A of continuous current. Additionally, the load
switch supports 1.5V logic level control and shutdown
features in a tiny 1.2mm x 1.2mm 4 pin MLF® package.
The MIC94044/5 provides a slew rate controlled soft-start
turn-on of 1ms (typical) to prevent an in-rush current event
from pulling down the input supply voltage.
The MIC94045 features an active load discharge circuit
which switches in a 200load when the switch is disabled
to automatically discharge a capacitive load.
Internal level shift circuitry allows low voltage logic signals
to switch higher supply voltages. The enable voltage can
be as high as 5.5V and is not limited by the input voltage.
The MIC94044/5 operating voltage range makes them
ideal for Lithium ion and NiMH/NiCad/Alkaline battery
powered systems, as well as non-battery powered
applications. The devices provide low quiescent current
and low shutdown current to maximize battery life.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
28mRDSON
3A continuous operating current
1.2mm x 1.2mm space saving 4-pin MLF® package
1.7V to 5.5V input voltage range
Internal level shift for CMOS/TTL control logic
Ultra low quiescent current
Micro-power shutdown current
Soft-Start: 1ms
Load discharge circuit: MIC94045
Ultra fast turn off time
Junction operating temperature from -40ºC to +125ºC
Applications
Solid State Drives (SSD)
Cellular phones
Portable Navigation Devices (PND)
Personal Media Players (PMP)
Ultra Mobile PCs
Portable instrumentation
Other Portable applications
PDAs
Industrial and DataComm equipment
____________________________________________________________________________________________________________
Typical Application
MIC94044 (1ms soft-start)
MIC94045 (1ms soft-start with auto-discharge)
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
March 2011
M9999-032311-A




 MIC94045
Micrel, Inc.
Ordering Information
Part Number
MIC94044YFL
Marking
P5
Soft-Start
1ms
Load Discharge
MIC94045YFL
P6
1ms
Notes:
1. MLF® Pin 1 Identifier symbol is “z”.
2. Over bar symbol (¯¯) may not be to scale.
3. MLF® is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
MIC94044/5
Package
4-Pin 1.2mm x 1.2mm MLF®
4-Pin 1.2mm x 1.2mm MLF®
Pin Configuration
4-Pin 1.2mm x 1.2mm MLF®
(Top View)
Pin Description
Pin Number
1
2
3
4
Pin Name
VOUT
GND
VIN
EN
Description
Drain of P-channel MOSFET.
Ground should be connected to electrical ground.
Source of P-channel MOSFET.
Enable (Input): Active-high CMOS/TTL control input for switch. Do not leave floating.
March 2011
2 M9999-032311-A




 MIC94045
Micrel, Inc.
MIC94044/5
Absolute Maximum Ratings (1)
Input Voltage (VIN) ........................................................ +6V
ECnoanbtilneuVouosltaDgreai(nVCENu)rr..e..n..t..(.I.D..).(.3.).................................... +6V
TA = 25°C .............................................................. ±3A
PCuolnsTteinAdu=Do8ura5si°nDCCio.ud..re.r.e.C.n..ut..r(.r.Ie.D.Pn..)t.(.4(.).I..S..)..(..5....)............................................................................................–...5±..06±m.02AAA
SEStoDraRgeatTinegm–pHerBaMtu(r6e)..(.T..s..)................................................–..5..5..°..C...t.o...+..1..5..0. 3°CkV
Operating Ratings (2)
Input Voltage (VIN)....................................... +1.7 to +5.5V
Junction Temperature (TJ) .....................–40°C to +125°C
Package Thermal Resistance
1.2mm x 1.2mm MLF® -4L(θJC) .........................90°C/W
Electrical Characteristics (7)
TA = 25°C, bold values indicate –40°C< TJ < +85°C, unless noted.
Symbol
Parameter
Condition
VEN_TH
Enable Threshold Voltage
VIN = 1.7V to 4.5V, ID = –250µA
Min Typ
0.4
IQ
IEN
ISHUT-Q
ISHUT-SWITCH
RDS(ON)
RSHUTDOWN
Dynamic
tON_DLY
tON_RISE
tOFF_DLY
tOFF_FALL
Quiescent Current
Enable Input Current
Quiescent Current (shutdown)
OFF State Leakage Current
P-Channel Drain to Source ON
Resistance
Turn-Off Resistance
VIN = VEN = 5.5V, ID = OPEN
Measured on VIN
VIN = VEN = 5.5V, ID = OPEN
VIN = +5.5V, VEN = 0V, ID = OPEN
Measured on VIN
VIN = +5.5V, VEN = 0V, ID = SHORT
Measured on VOUT, (7)
VIN = +5.0V, ID = –100mA, VEN = 1.5V
VIN = +4.5V, ID = –100mA, VEN = 1.5V
VIN = +3.6V, ID = –100mA, VEN = 1.5V
VIN = +2.5V, ID = –100mA, VEN = 1.5V
VIN = +1.8V, ID = –100mA, VEN = 1.5V
VIN = +1.7V, ID = –100mA, VEN = 1.5V
VIN = +3.6V, ITEST = 1mA, VEN = 0V
MIC94045
Turn-On Delay Time
Turn-On Rise Time
Turn-Off Delay Time
Turn-Off Fall Time
VIN = +3.6V, ID = –100mA, VEN = 1.5V
VIN = +3.6V, ID = –100mA, VEN = 1.5V
VIN = +3.6V, ID = –100mA, VEN = 0V
VIN = +3.6V, ID = –100mA, VEN = 0V
(No Output Capacitor)
2.25
0.1
0.1
0.1
28
30
33
45
72
82
200
0.2 0.85
0.4 1
100
20
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. With thermal contact to PCB. See power dissipation considerations section.
4. Pulse width <300µs with < 2% duty cycle.
5. Continuous body diode current conduction (reverse conduction, i.e. VOUT to VIN) is not recommended.
6. Devices are ESD sensitive. Handling precautions recommended. HBM (Human body model), 1.5kin series with 100pF.
7. Measured on the MIC94044YFL.
Max Units
1.2 V
10 µA
1 µA
1 µA
1 µA
55 m
60 m
65 m
90 m
145 m
160 m
400
1.5 ms
1.5 ms
200 ns
100 ns
March 2011
3 M9999-032311-A



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