MIC94066-69
Dual High Side Power Switches
MLF and MicroLead Frame is a registered trademark of Amkor Technologies
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
General Description
The MIC94066-69 are dual high-side load switches
designed for operation between 1.7V to 5.5V. The
devices contain a pair of low on-resistance,
115mΩ(max) P-channel MOSFETs that support over
2A of continuous current. The MIC94067 and
MIC94069 feature an active load discharge circuit
which insures capacitive loads retain no charge
when the main switch is in an OFF state.
An active pull-down on the enable input keeps
MIC94066-69 in a default OFF state until the EN pin
is pulled to a high level. The built-in level shift
circuitry allows for a logic signal that may be different
from the supply voltage to switch the high-side P-
channel MOSFET on or off.
MIC94066-67 feature rapid turn on while MIC94068-
69 provide a slew rate controlled Soft-Start turn-on
of 800µs (typical) to prevent in-rush current from
glitching supply rails.
MIC94066-69’s voltage range makes them suitable
for 1-cell Lithium ion and 2- to 3-cell
NiMH/NiCad/Alkaline powered systems, as well as
all 5V applications. Their low operating current of
2µA and low shutdown current of <1µA maximize
battery life.
Data sheets and support documentation can be
found on Micrel’s web site at www.micrel.com.
Features
• 1.7V to 5.5V input voltage range
• 2A continuous operating current
• 85mΩ (typ) R
ON
• Built-in level shift for control logic; can be
operated by 1.5V logic.
• Low 2µA quiescent current
• Soft-Start: MIC94068-69
• Micro-power shutdown <1µA
• Load discharge circuit: MIC94067, MIC94069
• Space saving 2mm x 2mm MLF™
Applications
• Load switch in portable applications:
- Cellular phones
- PDAs
- MP3 players
- Digital Cameras
- Portable instrumentation
• Battery switch-over circuits
• Level translators
____________________________________________________________________________________________________
Typical Application
½ MIC94066, 68
Load Switch Application
½ MIC94067, 69
Load Switch with Capacitive Load Discharge
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Ordering Information
Part Number Part
Marking*
Soft-Start Load Discharge Pb-Free Package
MIC94066YML P66
MIC94067YML P67 ●
MIC94068YML P68 ●
MIC94069YML P69 ● ●
2x2 mm MLF™
* Note: Over bar symbol may not be to scale
Pin Configur ation
Top View
2x2 mm MLF™ (code)
Pin Description
Pin Number Pin Name Pin Function
1 V
IN
A Source of P-channel MOSFET.
2 ENA
Enable (Input): Active-high CMOS compatible control input for switch A. Do not
leave floating.
3 V
IN
B Source of P-channel MOSFET.
4 ENB
Enable (Input): Active-high CMOS compatible control input for switch A. Do not
leave floating.
5 V
OUT
B Drain of P-channel MOSFET.
6 GND Ground. Both ground pins must be grounded.
7 V
OUT
A Drain of P-channel MOSFET.
8 GND Ground. Both ground pins must be grounded.
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Absolute Maximum Ratings
(1)
Input Voltage (V
IN
) ............................................... +6V
Enable Voltage (V
EN
) .......................................... +6V
Continuous Drain Current (I
D
)
(3)
T
A
= 25°C ...................................................... ±2A
T
A
= 85°C ................................................... ±1.4A
Pulsed Drain Current (I
DP
)
(4)
................................ ±6A
Continuous Diode Current (I
S
)
(4)
..................... –50mA
Storage Temperature (T
s
)............... –55°C to +150°C
EDS Rating – HBM
(6)
.......................................... 4KV
Operating Ratings
(2)
Input Voltage (V
IN
)................................. +1.7 to +5.5V
Junction Temperature (T
A
).............. –40°C to +125°C
Package Thermal Resistance
2x2 MLF (Θ
JA
).......................................... 90°C/W
2x2 MLF (Θ
JC
)
(3)
...................................... 45°C/W
Electrical Characteristics
V
IN
= 5V; T
A
= 25°C, bold values indicate –40°C< T
A
< +85°C, unless noted.
Symbol Parameter Condition Min Typ Max Units
V
IN
= 1.8V to 4.5V, I
D
= –250µA 0.5 1.2 V V
EN_TH
Enable Threshold Voltage
V
IN
= 1.7V to 4.5V, I
D
= –250µA 0.4 1.2 V
I
EN
Enable Input Current V
IN
= V
EN
= 5.5V 2 4 µA
I
VIN
OFF State Leakage Current V
IN
= +5.5V, V
EN
= 0V 1 µA
V
IN
= +4.5V, ID = –100mA, V
EN
= 1.5V 85 115 mΩ
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V 100 140 mΩ
V
IN
= +2.5V, ID = –100mA, V
EN
= 1.5V 145 200 mΩ
R
DS(ON)
P-Channel Drain to Source
On Resistance
V
IN
= +1.8V, ID = –100mA, V
EN
= 1.5V 155 215 mΩ
V
IN
= +1.7V, ID = –100mA, V
EN
= 1.5V 165 225 mΩ
R
SHUTDOWN
Turn-off Impedance V
IN
= +3.6V, I
TEST
= 1mA, V
EN
= 0V
MIC94067, 69
200 300 Ω
Dynamic
Symbol Parameter Condition Min Typ Max Units
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94066, 67
0.85 1.5 µs t
ON_DLY
Turn-On Delay Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94068, 69
700 1200 µs
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94066, 67
0.5 1 5 µs t
ON_RISE
Turn-On Rise Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94068, 69
500 800 1500 µs
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94066, 67
115 200 ns t
OFF_DLY
Turn-Off Delay Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94068, 69
100 200 ns
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Dynamic (cont.)
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94066, 67
60 100 ns t
OFF_FALL
Turn-Off Fall Time
V
IN
= +3.6V, ID = –100mA, V
EN
= 1.5V
MIC94068, 69
60 100 ns
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 backside thermal contact to PCB.
4. Pulse width <300µs with < 2% duty cycle.
5. Continuous body diode current conduction (reverse conduction, i.e. V
OUT
to V
IN
) is not recommended.
6. Devices are ESD sensitive. Handling precautions recommended. HBM (Human body model), 1.5k in series with 100pF.
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Typical Characteristics
R
L
= 100mA, C
L
= 0µF for the following plots
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Functional Characteristics
MIC94066
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MIC94067
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MIC94068
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MIC94069
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Package Information
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.
© 2006 Micrel, Incorporated.
_____________________________________________________________________________________________________________________
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