MIC5338/9
Dual 300mA µCap LDO
in 1.6mm x 1.6mm Thin MLF®
General Description
Features
The MIC5338/9 is an advanced dual 300mA LDO ideal for
powering general purpose portable devices requiring low
output noise and excellent Power Supply Rejection Ratio
(PSRR). The MIC5338/9 provides two independently
controlled, high performance, 300mA LDOs in a tiny
1.6mm x 1.6mm Thin MLF® package.
The MIC5338/9 provides two low noise outputs with fast
transient response. Additionally the MIC5338/9 provides
low quiescent current operation, using only 70μA with both
outputs enabled. The MIC5339 also incorporates an active
discharge feature that pulls down the output of the
regulator when the part is disabled.
The MIC5338/9 is available in fixed output voltages in a
lead-free (RoHS compliant) 6-pin 1.6mm x 1.6mm Thin
MLF® leadless package.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
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•
•
•
•
•
•
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2.5V to 5.5V input voltage range
Two 300mA outputs
High output accuracy – 2%
Low quiescent current – 70µA total
Stable with ceramic output capacitors
Independent enable pins
Low dropout voltage – 220mV at 300mA
Low output noise
Thermal shutdown protection
Current limit protection
Output discharge circuit – MIC5339
6-pin 1.6mm x 1.6mm Thin MLF® package
Applications
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Mobile phones
Camera phones
GPS, PMP, PDAs and handhelds
Portable electronics
___________________________________________________________________________________________________________
Typical Application
Camera Module Power Supply
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
June 2010
M9999-063010-A
Micrel, Inc.
MIC5338/9
Ordering Information
Manufacturing
Part Number
Marking
Code
Voltage(1
Junction
Temp. Range
Package(2)
)
MIC5338-SMYMT
S82
3.3V/2.8V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF®
Pb-Free
®
Pb-Free
®
Pb-Free
®
Pb-Free
®
Pb-Free
®
Part Number
MIC5338-3.3/2.8YMT1
MIC5338-2.8/1.8YMT
MIC5338-2.8/1.2YMT
1
MIC5338-1.8/1.2YMT
MIC5338-1.2/1.0YMT
1
1
1
MIC5339-3.3/2.8YMT*
MIC5339-2.8/1.8YMT*
1
MIC5339-2.8/1.2YMT*
1
MIC5339-1.8/1.2YMT*
MIC5339-1.2/1.0YMT*1
Lead
Finish(3)
MIC5338-MGYMT
S83
2.8V/1.8V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF
MIC5338-M4YMT
S84
2.8V/1.2V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF
S85
MIC5338-G4YMT
S86
MIC5338-4CYMT
1.8V/1.2V
1.2V/1.0V
–40° to +125°C
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF
6-Pin 1.6x1.6 Thin MLF
MIC5339-SMYMT
S92
3.3V/2.8V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF
Pb-Free
MIC5339-MGYMT
S93
2.8V/1.8V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF®
Pb-Free
–40° to +125°C
®
Pb-Free
®
S94
MIC5339-M4YMT
2.8V/1.2V
6-Pin 1.6x1.6 Thin MLF
MIC5339-G4YMT
S95
1.8V/1.2V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF
Pb-Free
MIC5339-4CYMT
S96
1.2V/1.0V
–40° to +125°C
6-Pin 1.6x1.6 Thin MLF®
Pb-Free
Note:
1.
Contact Micrel for availability.
2.
Thin MLF Pin 1 Identifier= “▲”
3.
Thin MLF is a GREEN RoHS compliant package. Level finish is NiPdAu. Mold compound is Halogen Free.
*
MIC5339 offers Auto-Discharge function.
®
®
Pin Configuration
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
Pin Description
Pin Number
Pin Name
Pin Function
1
VIN
Supply Input.
2
GND
Ground.
3
EN2
Enable Input LDO2. Active High Input. Logic High = On; Logic Low = Off; Do
not leave floating.
4
EN1
Enable Input LDO1. Active High Input. Logic High = On; Logic Low = Off; Do
not leave floating.
5
VOUT2
LDO2 Output.
6
VOUT1
LDO1 Output.
EPAD
HSPAD
Heatsink pad. Connect to ground.
June 2010
2
M9999-063010-A
Micrel, Inc.
MIC5338/9
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Voltage (VIN) ........................................ –0.3V to +6V
Enable Voltage (VEN1, VEN2). .............................. –0.3V to VIN
Power Dissipation (PD) ........................... Internally Limited(3)
Lead Temperature (soldering, 10sec.)....................... 260°C
Junction Temperature (TJ) ........................–40°C to +125°C
Storage Temperature (Ts) .........................–65°C to +150°C
ESD Rating(4) ................................................. ESD Sensitive
Supply Voltage (VIN)....................................... +2.5V to 5.5V
Enable Voltage (VEN1, VEN2). ................................... 0V to VIN
Junction Temperature (TJ) ........................ –40°C to +125°C
Junction Thermal Resistance
1.6mm x 1.6mm Thin MLF® (θJA) ...................92.4°C/W
Electrical Characteristics(5)
VIN = VEN1 = VEN2 = VOUT + 1V; higher of the two outputs; IOUTLDO1 = IOUTLDO2 = 100µA; COUT1 = COUT2 = 1µF;
TJ = 25°C, bold values indicate –40°C to +125°C, unless noted.
Parameter
Condition
Output Voltage Accuracy
Variation from nominal VOUT
Variation from nominal VOUT
Min
Typ
Max
Units
-2.0
+2.0
%
-3.0
+3.0
%
Line Regulation
VIN = VOUT +1V to 5.5V, IOUT = 100µA
0.02
0.3
%/V
Load Regulation
IOUT = 100µA to 300mA
0.3
1
%
Dropout Voltage
Ground Pin Current
IOUT = 50mA
35
65
mV
IOUT = 300mA
220
380
mV
VEN1 = High; VEN2 = Low; IOUT1 = 0mA
38
58
µA
VEN1 = Low; VEN2 = High; IOUT2 = 0mA
38
58
µA
VEN1 = VEN2 = High; IOUT1 = IOUT2 = 0mA
70
110
µA
VEN1 = High; VEN2 = Low; IOUT1 = 300mA
55
70
µA
VEN1 = Low; VEN2 = High; IOUT2 = 300mA
55
70
µA
VEN1 = VEN2 = High; IOUT1 = IOUT2 = 300mA
105
135
µA
Shutdown Current
VEN1 = VEN2 ≤0.2V
0.05
1
µA
Ripple Rejection
f = 1kHz; COUT = 1µF
Current Limit
VOUT = 0V
55
325
500
dB
680
mA
Output Voltage Noise
COUT = 1µF, 10Hz to 100kHz
200
µVRMS
Auto-Discharge NFET
Resistance
MIC5339 Only; VEN1 = VEN2 = 0V; VIN = 3.6V; IOUT = -3mA
30
Ω
Enable Inputs (EN1/EN2)
Enable Input Voltage
0.2
Logic Low
1.2
Logic High
Enable Input Current
V
1
µA
0.01
1
µA
50
125
µs
VIL ≤ 0.2V
0.01
VIH ≥ 1.2V
Turn-on Time
V
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 TA (ambient temperature) is PD(max) =(TJ(max) – TA) / θJA. 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.
June 2010
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M9999-063010-A
Micrel, Inc.
MIC5338/9
Typical Characteristics
Power Supply
Rejection Ratio
-100
3.4
150mA
-90
No-Load
-50
-40
300mA
-30
-20
VIN =VEN =3.8V
VOUT=1.8V
1010
2.4
1,000
1K
1
0,000
10K
1100K
00,000
Output Voltage
vs. Output Current
GROUND CURRENT (μA)
OUTPUT VOLTAGE (V)
3.0
3.5
4.0
4.5
5.0
INPUT VOLTAGE (V)
2.4
2.2
VIN =3.8V
2.0
CIN =COUT=1μF
1.8
2.5
5.5
60
1.6
50
300mA
40
30
No Load
20
VOUT=2.8V
CIN =COUT=1μF
10
50
100
150
200
250
300
5.5
100
300mA
80
60
No Load
40
VOUT1=2.8V, VOUT2=1.8V
CIN =COUT=1μF
20
VEN1=VEN2=VIN
0
2.5
Ground Current
vs. Output Current
3.5
4.0
4.5
5.0
INPUT VOLTAGE (V)
120
0
OUTPUT CURRENT (mA)
3.0
Ground Current
vs. Input Voltage (Dual Outputs)
140
VEN2=GND,VEN1=VIN
1.4
60
3.0
3.5
4.0
4.5
5.0
INPUT VOLTAGE (V)
2.5
5.5
Ground Current
vs. Temperature (Single Output)
3.0
3.5
4.0
4.5
INPUT VOLTAGE (V)
5.0
5.5
Ground Current
vs. Temperature (Dual Outputs)
100
90
100
GROUND CURRENT (μA)
GROUND CURRENT (μA)
CIN =COUT=1μF
Ground Current
vs. Input Voltage (Single Output)
70
2.6
120
300mA
1.6
1.4
2.5
2.8
Dual Outputs
80
Single Output
60
40
VIN =3.8V
20
CIN =COUT=1μF
0
50
100
150
200
250
300
30
No Load
20
VOUT1=2.8V
VEN1=VIN=3.8V
VEN2=GND
10
0
20 40 60 80
TEMPERATURE (°C)
150mA
100
50mA
50
DROPOUT VOLTAGE (mV)
200
Dropout Voltage
vs. Output Current
-40 -20
0
20
40
60
80 100 120
TEMPERATURE (°C)
June 2010
60
No Load
50
40
VOUT1 =2.8V
30
VOUT2 =1.8V
20
VEN1 =VEN2 =VIN=3.8V
10
CIN=COUT =1μF
0
20 40 60 80 100 120
TEMPERATURE (°C)
Current Limit
vs. Input Voltage
700
650
180
160
600
140
VOUT1=2.8V
550
120
100
500
80
60
VOUT2=1.8V
450
40
VOUT1=2.8V
20
CIN=COUT =1μF
0
50
100
150
200
250
OUTPUT CURRENT (mA)
4
VIN =3.8V
400
0
0
70
-40 -20
100 120
200
300mA
300mA
80
0
220
CIN=COUT =1μF
150
40
-40 -20
Dropout Voltage
vs. Temperature
250
300mA
0
OUTPUT CURRENT (mA)
300
50
CIN=COUT=1μF
0
DROPOUT VOLTAGE (mV)
1.8
2.0
1,000,000
1M 10,000,000
10M
Frequency (Hz)
0
100μA
CIN =COUT=1μF
100
100
3.0
2.0
2.2
COUT=1μF
10
300mA
GROUND CURRENT (μA)
0
2.8
2.6
2.2
GROUND CURRENT (μA)
-10
100μA
CURRENT LIMIT (mA)
dB
-60
3.0
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
-70
Output Voltage
vs. Input Voltage
2.4
3.2
-80
20
Output Voltage
vs. Input Voltage
300
CIN=COUT=1μF
350
2.5
3
3.5
4
4.5
INPUT VOLTAGE (V)
5
5.5
M9999-063010-A
Micrel, Inc.
Output Noise
Spectral Density
1
Noise µV/√Hz
MIC5338/9
0.1
0.01
VIN =4.5V
COUT=1µF
VOUT1=2.8V
Iload=50mA
0.001
110
0
100
100
1,000
1K
10,000
10K
1100K
00,000
1,000,000
1M 10,000,000
10M
Frequency (Hz)
June 2010
5
M9999-063010-A
Micrel, Inc.
MIC5338/9
Functional Characteristics
June 2010
6
M9999-063010-A
Micrel, Inc.
MIC5338/9
Functional Diagrams
MIC5338 Block Diagram
MIC5339 Block Diagram
June 2010
7
M9999-063010-A
Micrel, Inc.
MIC5338/9
Application Information
Enable/Shutdown
The MIC5338/9 comes with two active high enable pins
that allow each regulator to be disabled independently.
Forcing the enable pin low disables the regulator and
sends it into an off mode current state drawing virtually
zero current. When disabled, the MIC5339 switches an
internal 30Ω load on the regulator output to discharge
the external capacitor.
Forcing the enable pin high enables the output voltage.
The active high enable pin uses CMOS technology and
cannot be left floating. A floating enable pin may cause
an indeterminate state on the output.
MIC5338/9 is a dual 300mA LDO. The MIC5339
includes an auto-discharge circuit for each LDO output
that is activated when the output is disabled. The
MIC5338/9 regulator is fully protected from damage due
to fault conditions through linear current limiting and
thermal shutdown.
Input Capacitor
The MIC5338/9 is a high performance, high bandwidth
device. An input capacitor of 1µF from the input pin to
ground is required to provide stability. Low ESR ceramic
capacitors provide optimal performance in small board
area. Additional high frequency capacitors, such as
small valued NPO dielectric type capacitors, help filter
out high frequency noise and are good practice in any
RF based circuit. X5R or X7R dielectrics are
recommended for the input capacitor. Y5V dielectrics
lose most of their capacitance over temperature and are
therefore not recommended.
Thermal Considerations
The MIC5338/9 is designed to provide two 300mA
continuous current outputs in a very small package.
Maximum operating temperature can be calculated
based on the output currents and the voltage drop
across the part. For example, if the input voltage is 3.6V,
VOUT1 = 3.3V, VOUT2 = 2.8V and each with an output
current = 300mA. The actual power dissipation of the
regulator circuit can be determined using the equation:
PD = (VIN – VOUT1) IOUT1 + (VIN – VOUT2) I OUT2 + VIN IGND
Because this is CMOS device and the ground current is
typically
