MIC5304
Single 150mA Low Operating Current
LDO with Dual Voltage Pin Select
General Description
Features
The MIC5304 is a low quiescent current, low dropout
•
150mA output current
regulator with selectable output voltage designed for
•
Logic controlled selectable output voltage
applications that require two levels of output voltage
•
Fast transition time between selected output voltages
regulation. The MIC5304 is an ideal solution for
•
Input voltage range: 2.3V to 5.5V
programming memory cards as well as for conserving
•
Low 24µA operating current
power in portable applications. The MIC5304 is capable of
sourcing 150mA of output current while only consuming
•
Stable with 1μF ceramic capacitors
24µA of operating current. This high performance LDO
•
Low dropout voltage of 85mV @ 150mA
offers fast transient response while still maintaining low
•
Thermal shutdown and current limit protection
quiescent current levels.
•
Tiny 6-pin 1.6mm x 1.6mm Thin MLF
®
package
The MIC5304 is an ideal solution for battery operated
applications due to ultra low operating current and
extremely low dropout voltage of 85mV at 150mA.
Applications
Equipped with a TTL logic compatible enable pin, the
•
Mobile phones, PDAs, PMPs, PNDs
MIC5304 can be put into a zero-off mode current state,
drawing virtually no current when disabled.
•
Digital still and video cameras
Board space and component cost is minimized because
•
Dual voltage levels for power saving mode
the MIC5304 operates with very small 1μF ceramic
•
Portable electronics
capacitors. The MIC5304 provides fixed output voltages,
and is available in the tiny 1.6mm x 1.6mm Thin MLF
®
package ideal for portable electronics.
MIC5304 also features thermal shutdown and current limit
protection.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
MIC5304-RGYMT
1µF
VIN
VOUT
3.2V/1.8V
VEN
VSEL
GND
1µF
Selectable Output Voltage LDO Application
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
November 2008
M9999-111908-A
Micrel, Inc.
MIC5304
Ordering Information
Part Number
MIC5304-RGYMT
MIC5304-XDYMT
MIC5304-XGHYMT
Note:
1.
2.
3.
Pin 1 identifier =
▲
For other voltage options contact Micrel Marketing for details.
MLF is GREEN RoHs compliant package. Lead finish is NiPdAu, Hold compound is Hydrogen Free.
Marking
(1)
RQZ
XQD
XGH
Voltage
(2)
V
SEL
=High
3.2V
3.15V
3.15V
Voltage
1.8V
1.85V
(2)
V
SEL
=Low
Temperature
Range
–40° to +125°C
–40° to +125°C
–40° to +125°C
Package
(3)
6-Pin 1.6mm x1.6mm Thin MLF
®
6-Pin 1.6mm x1.6mm Thin MLF
®
6-Pin 1.6mm x1.6mm Thin MLF
®
1.875V
Pin Configuration
VIN 1
GND 2
VSEL 3
6
5
4
VOUT
NC
EN
6-Pin 1.6mm x 1.6mm Thin MLF
®
(MT)
Pin Description
Pin Number
1
2
3
4
5
6
HS Pad
Pin Name
VIN
GND
VSEL
EN
NC
VOUT
E PAD
Pin Function
Supply Input.
Ground.
Voltage Select Input. Logic high = higher output voltage; Logic low = lower
output voltage. Do not leave floating.
Enable Input: Active High Input. Logic High = On; Logic Low = Off. Do not leave
floating.
Not internally connected.
Output Voltage.
Exposed heatsink pad connected to ground internally.
November 2008
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M9999-111908-A
Micrel, Inc.
MIC5304
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) ........................................ –0.3V to +6V
Enable/Select Voltage (V
EN
/V
SEL
)...................... –0.3V to V
IN
Power Dissipation (P
D
) ........................... Internally Limited
(3)
Lead Temperature (soldering, 5sec.)......................... 260°C
Junction Temperature(T
J
) .........................–40°C to +125°C
Storage Temperature (T
s
) .........................–65°C to +150°C
ESD Rating
(4)
.................................................................. 2kV
Operating Ratings
(2)
Supply Voltage (V
IN
)....................................... +2.3V to 5.5V
Enable/Select Voltage (V
EN
/V
SEL
)........................... 0V to V
IN
Junction Temperature (T
J
) ........................ –40°C to +125°C
Junction Thermal Resistance
1.6mmx1.6mm Thin MLF-6 (θ
JA
) .......................92°C/W
Electrical Characteristics
(5)
V
IN
= V
EN
= V
OUT
+ 1V; C
IN
= C
OUT
= 1µF; I
OUT
= 100µA; T
J
= 25°C,
bold
values indicate –40°C to +125°C, unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage
(6)
(7)
Condition
Variation from nominal V
OUT
Variation from nominal V
OUT
V
IN
= V
OUT
+1V to 5.5V, I
OUT
= 100µA
I
OUT
= 100µA to 150mA
I
OUT
= 50mA
I
OUT
= 100mA
I
OUT
= 150mA
Min
–1.5
–2.0
Typ
Max
+1.5
+2.0
Units
%
%
%/V
%
mV
mV
0.01
0.05
25
55
85
24
0.01
65
50
275
475
90
0.3
1
150
35
1
mV
µA
µA
dB
dB
Ground Pin Current
Ripple Rejection
Current Limit
(8)
I
OUT
= 100µA to 150mA
V
EN
= 0V
f = 1kHz; C
OUT
= 1µF; I
OUT
= 150mA
f = 20kHz; C
OUT
= 1µF; I
OUT
= 150mA
V
OUT
= 0V
C
OUT
= 1µF, 10Hz to 100kHz
Logic Low
Logic High
1.2
V
IL
≤
0.2V
V
IH
≥
1.2V
C
OUT
= 1µF; I
OUT
= 150mA
V
EN
= High; V
SEL
= Transition from 0V to 1.2V; V
OUT
change from 1.8V to (3.2V-10%)
V
EN
= High; V
SEL
= Transition from 1.2V to 0V; V
OUT
change from 3.2V to (1.8V+10%)
Ground Pin Current in Shutdown
750
mA
µV
RMS
Output Voltage Noise
Enable/Select Input
Enable/Select Input Voltage
Enable/Select Input Current
Turn-on Time
Transition Time
0.2
0.01
0.01
150
35
45
1
1
500
100
100
V
V
µA
µA
µs
µs
µs
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D(max)
= (T
J(max)
– T
A
) /
θ
JA
. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
5. Specification for packaged product only.
6. Regulation is measured at constant junction temperature using low duty cycle pulse testing; changes in output voltage due to heating effects are
covered by the thermal regulation specification.
7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal V
OUT
. For outputs below
2.3V, the dropout voltage is the input-to-output differential with the minimum input voltage 2.3V.
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin
current.
November 2008
3
M9999-111908-A
Micrel, Inc.
MIC5304
Typical Characteristics
-80
-70
-60
-50
-40
-30
-20
-10
0
0.1
V
IN
= V
OUT
+1V
V
OUT
= 3.15V
C
OUT
= 1µF
1
10
100 1K
FREQUENCY (kHz)
10K
150mA
Power Supply
Rejection Ratio (V
SEL
=High)
50mA
100mA
-80
-70
-60
-50
-40
-30
-20
-10
Power Supply
Rejection Ratio (V
SEL
=Low)
50mA
150mA
100mA
3.5
3.0
2.5
2.0
1.5
1.0
Output Voltage vs.
Input Voltage (V
SEL
=High)
100µA
150mA
0
0.1
V
IN
= V
OUT
+1V
V
OUT
= 1.85V
C
OUT
= 1µF
1
10
100
1K
FREQUENCY (kHz)
10K
0.5
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
V
OUT
= 3.15V
C
OUT
= 1µF
2.0
1.8
1.4
1.2
1.0
0.8
0.6
0.4
0.2
Output Voltage vs.
Input Voltage (V
SEL
=Low)
3.4
Output Voltage vs.
Temperature (V
SEL
=High)
2.0
Output Voltage vs.
Temperature (V
SEL
=Low)
1.6
100µA
150mA
3.2
1.9
1.8
3.0
V
OUT
= 1.85V
C
OUT
= 1µF
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
2.8
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
V
IN
= V
OUT
+ 1V
v
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
I
OUT
= 100µA
1.7
1.6
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
V
IN
= V
OUT
+1V
V
OUT
= 1.85V
C
IN
= C
OUT
= 1µF
I
OUT
= 100µA
3.4
Output Voltage vs.
Output Current (V
SEL
=High)
2.2
Output Voltage vs.
Output Current (V
SEL
=Low)
30
28
26
Ground Current
vs. Input Voltage
3.2
2.0
100µA
150mA
V
IN
= V
EN
V
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
4
4.5
5
INPUT VOLTAGE (V)
5.5
3.0
1.8
24
2.8
2.6
0
V
IN
= V
SEL
= V
EN
= V
OUT
+1V
V
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
25 50 75 100 125 150
OUTPUT CURRENT (mA)
1.6
1.4
0
V
IN
= V
EN
= V
OUT
+1V
V
SEL
= 0V
V
OUT
= 1.85V
C
IN
= C
OUT
= 1µF
25 50 75 100 125 150
OUTPUT CURRENT (mA)
22
20
3.5
28
Ground Current
vs. Output Current
550
Current Limit vs.
Input Voltage (V
SEL
=High)
550
Current Limit vs.
Input Voltage (V
SEL
=Low)
26
525
525
24
500
500
22
20
0
V
EN
= V
IN
= V
OUT
+ 1V
V
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
25 50 75 100 125 150
OUTPUT CURRENT (mA)
475
V
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
4
4.5
5
INPUT VOLTAGE (V)
5.5
475
V
OUT
= 1.85V
C
IN
= C
OUT
= 1µF
3
3.5
4
4.5
5
INPUT VOLTAGE (V)
5.5
450
3.5
450
2.5
November 2008
4
M9999-111908-A
Micrel, Inc.
MIC5304
Typical Characteristics (continued)
120
100
80
60
40
20
40
V
EN
= V
SEL
= 1.2V
V
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
I
LOAD
= 150mA
20
0
25
V
EN
= V
SEL
= 1.2V
V
OUT
= 3.15V
C
IN
= C
OUT
= 1µF
50
75
100 125 150
OUTPUT CURRENT (mA)
Dropout Voltage vs.
Temperature (V
SEL
=High)
100
Dropout Voltage vs.
Output Current (V
SEL
=High)
80
60
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
November 2008
5
M9999-111908-A
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