MIC5330
Dual 300mA µCap LDO in 2mm x 2mm MLF®
ULDO is a trademark of Micrel, Inc.
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
General Description
The MIC5330 is a tiny Dual Ultra Low Dropout
(ULDO™) linear regulator ideally suited for portable
electronics due to its high power supply ripple
rejection (PSRR) and ultra low output noise. The
MIC5330 integrates two high performance 300mA
ULDOs into a tiny 2mm x 2mm leadless MLF®
package, which provides exceptional thermal package
characteristics.
The MIC5330 is a µCap design which enables
operation with very small ceramic output capacitors
for stability, thereby reducing required board space
and component cost. The combination of extremely
low drop out voltage, high power supply rejection and
exceptional thermal package characteristics makes it
ideal for powering RF/noise sensitive circuitry, cellular
phone camera modules, imaging sensors for digital
still cameras, PDAs, MP3 players and WebCam
applications.
The MIC5330 ULDO™ is available in fixed output
voltages in the tiny 8-pin 2mm x 2mm leadless MLF®
package which occupies less than half the board area
of a single SOT-6 package. Additional voltage options
are available. For more information, contact Micrel
marketing department.
Data sheets and support documentation are found on
the Micrel web site:www.micrel.com.
Features
2.3V to 5.5V input voltage range
Ultra low dropout voltage ULDO™ 75mV @ 300mA
High PSRR - >70dB @ 1KHz
Ultra-low output noise: 30µVRMS
±2% initial output accuracy
Tiny 8-pin 2mm x 2mm MLF® leadless package
Excellent Load/Line transient response
Fast start up time: 30µs
300mA output current per LDO
Thermal shutdown protection
Low quiescent current: 75µA per output
Current limit protection
Applications
Mobile phones
PDAs
GPS receivers
Portable electronics
Portable media players
Digital still and video cameras
Typical Application
RF Power Supply Circuit
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Block Diagram
MIC5330 Fixed Block Diagram
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Ordering Information
Functional
Part number
Ordering
Part Number
Marking1
VOUT1/VOUT22
Junction
Temperature Range
Package3
MIC5330-1.8/1.5YML MIC5330-GFYML EGF 1.8V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-1.8/1.8YML MIC5330-GGYML EGG 1.8V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-1.8/1.6YML MIC5330-GWYML EGW 1.8V/1.6V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.5/1.8YML MIC5330-JGYML EJG 2.5V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.5/2.5YML MIC5330-JJYML EJJ 2.5V/2.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.6/1.85YML MIC5330-KDYML EKD 2.6V/1.85 –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.6/1.8YML MIC5330-KGYML EKG 2.6V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.7/2.7YML MIC5330-LLYML ELL 2.7V/2.7V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.8/1.5YML MIC5330-MFYML EMF 2.8V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.8/1.8YML MIC5330-MGYML EMG 2.8V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.8/2.6YML MIC5330-MKYML EMK 2.8V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.8/2.8YML MIC5330-MMYML EMM 2.8V/2.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.85/1.85YML MIC5330-NDYML END 2.85V/1.85V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.85/2.6YML MIC5330-NKYML ENK 2.85V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.85/2.85YML MIC5330-NNYML ENN 2.85V/2.85V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.9/1.5YML MIC5330-OFYML EOF 2.9V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.9/1.8YML MIC5330-OGYML EOG 2.9V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-2.9/2.9YML MIC5330-OOYML EOO 2.9V/2.9V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.0/1.8YML MIC5330-PGYML EPG 3.0V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.0/2.5YML MIC5330-PJYML EPJ 3.0V/2.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.0/2.6YML MIC5330-PKYML EPK 3.0V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.0/2.8YML MIC5330-PMYML EPM 3.0V/2.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.0/2.85YML MIC5330-PNYML EPN 3.0V/2.85V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.0/3.0YML MIC5330-PPYML EPP 3.0V/3.0V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/1.5YML MIC5330-SFYML ESF 3.3V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/1.8YML MIC5330-SGYML ESG 3.3V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/2.5YML MIC5330-SJYML ESJ 3.3V/2.5V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/2.6YML MIC5330-SKYML ESK 3.3V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/2.8YML MIC5330-SMYML ESM 3.3V/2.8V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/2.85YML MIC5330-SNYML ESN 3.3V/2.85V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/2.9YML MIC5330-SOYML ESO 3.3V/2.9V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/3.0YML MIC5330-SPYML ESP 3.3V/3.0V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/3.2YML MIC5330-SRYML ESR 3.3V/3.2V –40°C to +125°C 8-Pin 2x2 MLF®
MIC5330-3.3/3.3YML MIC5330-SSYML ESS 3.3V/3.3V –40°C to +125°C 8-Pin 2x2 MLF®
Notes:
1. Over bar ( ¯ ) symbol may not be to scale.
2. Other voltage options available. Contact Micrel for more details.
3. MLF® is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
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Pin Configuration
8-Pin 2mm x 2mm MLF (ML)
Top View
Pin Description
Pin Number
MLF-8
Pin Name
Pin Function
1 VIN Supply Input.
2 GND Ground
3 BYP
Reference Bypass: Connect external 0.1µF to GND to reduce output noise.
May be left open when bypass capacitor is not required.
4 EN2
Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
5 EN1
Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
6 NC Not internally connected
7 VOUT2 Regulator Output – LDO2
8 VOUT1 Regulator Output – LDO1
EP Exposed Pad. Connect EP to GND.
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Absolute Maximum Ratings(1)
Supply Voltage (VIN).....................................0V to +6V
Enable Input Voltage (VEN)...........................0V to +6V
Power Dissipation...........................Internally Limited(3)
Lead Temperature (soldering, 3sec ...................260°C
Storage Temperature (TS)................. -65°C to +150°C
ESD Rating(4) .........................................................2kV
Operating Ratings(2)
Supply voltage (VIN)............................... +2.3V to +5.5V
Enable Input Voltage (VEN).............................. 0V to VIN
Junction Temperature ......................... -40°C to +125°C
Junction Thermal Resistance
MLF-8 (θJA) ............................................... 90°C/W
Electrical Characteristics(5)
VIN = EN1 = EN2 = VOUT + 1.0V; higher of the two regulator outputs, IOUTLDO1 = IOUTLDO2 = 100µA; COUT1 = COUT2 = 1µF;
CBYP = 0.1µF; TJ = 25°C, bold values indicate –40°C TJ +125°C, unless noted.
Parameter Conditions Min Typ Max Units
Variation from nominal VOUT -2.0 +2.0 % Output Voltage Accuracy
Variation from nominal VOUT; –40°C to +125°C -3.0 +3.0 %
Line Regulation VIN = VOUT + 1V to 5.5V; IOUT = 100µA 0.02 0.3
0.6
%/V
%/V
Load Regulation IOUT = 100µA to 300mA 0.5 %
Dropout Voltage (Note 6) IOUT = 100µA
IOUT = 100mA
IOUT = 150mA
IOUT = 300mA
0.1
25
35
75
75
100
200
mV
mV
mV
mV
Ground Current EN1 = High; EN2 = Low; IOUT = 100µA to 300mA
EN1 = Low; EN2 = High; IOUT = 100µA to 300mA
EN1 = EN2 = High; IOUT1 = 300mA, IOUT2 = 300mA
85
85
150
120
120
200
µA
µA
µA
Ground Current in Shutdown EN1 = EN2 = 0V 0.01 2 µA
Ripple Rejection f = 1kHz; COUT = 1.0µF; CBYP = 0.1µF
f = 20kHz; COUT = 1.0µF; CBYP = 0.1µF
70
65
dB
dB
Current Limit VOUT = 0V 350 550 950 mA
Output Voltage Noise COUT = 1.0µF; CBYP = 0.1µF; 10Hz to 100kHz 30 µVRMS
Enable Inputs (EN1 / EN2)
Logic Low 0.2 V Enable Input Voltage
Logic High 1.1 V
VIL 0.2V 0.01 µA Enable Input Current
VIH 1.0V 0.01 µA
Turn on Time (See Timing Diagram)
Turn on Time (LDO1 and 2) COUT = 1.0µF; CBYP = 0.01µF 30 100 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 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, 1.5k in series with 100pF.
5. Specification for packaged product only.
6. Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal VOUT. For outputs below
2.3V, the dropout voltage is the input to output differential with the minimum input voltage 2.3V.
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Typical Characteristics
0
-10
-20
-30
-70
-80
Power Supply
Rejection Ratio
1
FREQUENCY (kHz)
0.1 10 100 1,000
VIN = 3.4V
VOUT = 3V
COUT = 1µF
CBYP = 0.1µF
IOUT = 50mA
-40
-50
-60
0
-10
-20
-70
-80
Power Supply
Rejection Ratio
1
FREQUENCY (kHz)
0.1 10 100 1,000
VIN = 3.6V
VOUT = 3V
COUT = 1µF
CBYP = 0.1µF
IOUT = 150mA
-30
-40
-50
-60
0
-10
-20
-60
-70
-80
Power Supply
Rejection Ratio
1
FREQUENCY (kHz)
0.1 10 100 1,000
VIN = 3.9V
VOUT = 3V
COUT = 1µF
CBYP = 0.1µF
IOUT = 300mA
-30
-40
-50
0
10
20
30
40
50
60
70
80
05 0 100 150 200 250 300
OUTPUT CURRENT (mA)
Dropout Voltage
vs. Output Current
VOUT = 3V
COUT = 1µF
70
72
74
82
84
86
88
90
Ground Current
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
100µA
100mA
50mA
150mA
VIN = VOUT + 1V
VOUT = 3V
COUT = 1µF
EN1 = VIN, EN2 = GND
300mA
76
78
80
2.70
2.75
2.80
2.85
2.90
3.05
3.10
3.15
3.20
Output Voltage
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
2.95
3.00
VIN = EN1 = EN2
VOUT = 3V
COUT = 1µF
IOUT = 100µA
VIN = VOUT + 1V
2.7
2.8
2.9
3.1
3.2
3.3
05 0 100 150 200 250 300
OUTPUT CURRENT (mA)
3.0
Output Voltage
vs. Output Current
VIN = VOUT + 1V
VOUT = 3V
COUT = 1µF
0.5
1.5
2.5
3.5
1 234 5
INPUT VOLTAGE (V)
1.0
2.0
3.0
0.0
Output Voltage
vs. Input Voltage
VIN = VOUT + 1V
COUT = 1µF
100µA
150mA
300mA
70
80
90
Dropout Voltage
vs. Temperature
20 40 60 80
TEMPERATURE (°C)
10mA
50mA
100mA
150mA
100µA
VOUT = 3V
VIN = EN1 = EN2
COUT = 1µF
0
10
20
30
40
50
60
0
300mA
70
72
74
76
78
80
82
84
86
88
90
05 0 100 150 200 250 300
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
VIN = VOUT + 1V
VOUT = 3V
VEN1 = VEN2 = VIN
COUT1 = COUT2 = 1µF
400
420
440
460
480
500
520
540
560
580
600
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
vs. Input Voltage
Current Limit
COUT = 1µF
VEN = VIN
0.001
0.01
0.1
1
10
Output Noise
Spectral Density
1
FREQUENCY (kHz)
0.10.01 10 100 1,000
VIN = 4V
VOUT = 3V
COUT = 1µF
CBYP = 0.1µF
ILOAD = 60mA
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Functional Characteristics
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Applications Information
Enable/Shutdown
The MIC5330 comes with dual active high enable pins
that allow each regulator to be enabled independently.
Forcing the enable pin low disables the regulator and
sends it into a “zero” off mode current state. In this
state, current consumed by the regulator goes nearly
to zero. Forcing the enable pin high enables the
output voltage. The active high enable pin uses
CMOS technology and the enable pin cannot be left
floating; a floating enable pin may cause an
indeterminate state on the output.
Input Capacitor
The MIC5330 is a high performance, high bandwidth
device. Therefore, it requires a well bypassed input
supply for optimal performance. A 1µF capacitor is
required from the input to ground to provide stability.
Low ESR ceramic capacitors provide optimal
performance at a minimum of space. 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.
Output Capacitor
The MIC5330 requires an output capacitor of 1µF or
greater to maintain stability. The design is optimized
for use with low ESR ceramic chip capacitors. High
ESR capacitors may cause high frequency oscillation.
The output capacitor can be increased, but
performance has been optimized for a 1µF ceramic
output capacitor and does not improve significantly
with larger capacitance.
X7R/X5R dielectric type ceramic capacitors are
recommended because of their temperature
performance. X7R type capacitors change
capacitance by 15% over their operating temperature
range and are the most stable type of ceramic
capacitors. Z5U and Y5V dielectric capacitors change
value by as much as 50% and 60%, respectively, over
their operating temperature ranges. To use a ceramic
chip capacitor with Y5V dielectric, the value must be
much higher than an X7R ceramic capacitor to ensure
the same minimum capacitance over the equivalent
operating temperature range.
Bypass Capacitor
A capacitor can be placed from the noise bypass pin
to ground to reduce output voltage noise. The
capacitor bypasses the internal reference. A 0.1µF
capacitor is recommended for applications that require
low noise outputs. The bypass capacitor can be
increased, further reducing noise and improving
PSRR. Turn on time increases slightly with respect to
bypass capacitance. A unique, quick start circuit
allows the MIC5330 to drive a large capacitor on the
bypass pin without significantly slowing turn on time.
No-Load Stability
Unlike many other voltage regulators, the MIC5330
will remain stable and in regulation with no load. This
is especially important in CMOS RAM keep alive
applications.
Thermal Considerations
The MIC5330 is designed to provide 300mA of
continuous current for both outputs in a very small
package. Maximum ambient operating temperature
can be calculated based on the output current and the
voltage drop across the part. Given that the input
voltage is 3.3V, the output voltage is 2.8V for VOUT1,
2.5V for VOUT2 and the output current = 300mA. The
actual power dissipation of the regulator circuit can be
determined using the equation:
PD = (VIN – VOUT1) IOUT1 + (VIN – VOUT2) IOUT2+ VIN IGND
Because this device is CMOS and the ground current
is typically <100µA over the load range, the power
dissipation contributed by the ground current is < 1%
and can be ignored for this calculation.
PD = (3.3V – 2.8V) × 300mA + (3.3V -1.5) × 300mA
P
D = 0.69W
To determine the maximum ambient operating
temperature of the package, use the junction-to-
ambient thermal resistance of the device and the
following basic equation:
PD(MAX) = TJ(MAX) - TA
JA
TJ(max) = 125°C, the maximum junction temperature of
the die θJA thermal resistance = 90°C/W.
The table below shows junction-to-ambient thermal
resistance for the MIC5330 in the MLF package.
Package θJA Recommended
Minimum Footprint
8-Pin 2x2 MLF® 90°C/W
Thermal Resistance
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Micrel, Inc. MIC5330
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Substituting PD for PD(max) and solving for the ambient
operating temperature will give the maximum
operating conditions for the regulator circuit. The
junction-to-ambient thermal resistance for the
minimum footprint is 90°C/W.
The maximum power dissipation must not be
exceeded for proper operation.
For example, when operating the MIC5330-MFYML at
an input voltage of 3.3V and 300mA loads at each
output with a minimum footprint layout, the maximum
ambient operating temperature TA can be determined
as follows:
0.99W = (125°C – TA)/(90°C/W)
T
A=62.9°C
Therefore, a 2.8V/1.5V application with 300mA at
each output current can accept an ambient operating
temperature of 62.9°C in a 2mm x 2mm MLF®
package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
“Regulator Thermals” section of Micrel’s Designing
with Low-Dropout Voltage Regulators handbook. This
information can be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
Micrel, Inc. MIC5330
March 2011 10 M9999-032311-
Package Information
8-Pin 2mm x 2mm MLF (ML)
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
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual
property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability
whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical impla
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.
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MIC5330-KDYML TR MIC5330-OFYML TR MIC5330-PGYML TR MIC5330-SPYML TR MIC5330-MFYML TR
MIC5330-MMYML TR MIC5330-GGYML TR MIC5330-OOYML TR MIC5330-NNYML TR MIC5330-SFYML TR
MIC5330-SKYML TR MIC5330-GFYML TR MIC5330-NKYML TR MIC5330-SSYML TR MIC5330-KGYML TR
MIC5330-SJYML TR MIC5330-JGYML TR MIC5330-PJYML TR MIC5330-JJYML TR MIC5330-PNYML TR
MIC5330-PKYML TR MIC5330-SGYML TR MIC5330-SRYML TR MIC5330-NDYML TR MIC5330-PMYML TR
MIC5330-LLYML TR MIC5330-SOYML TR MIC5330-MGYML TR MIC5330-SMYML TR MIC5330-MKYML TR
MIC5330-PPYML TR MIC5330-SNYML TR MIC5330-OGYML TR MIC5330-GWYML TR MIC5330-MGYML-TR
MIC5330-SSYML-TR MIC5330-SRYML-TR MIC5330-KGYML-TR MIC5330-SKYML-TR MIC5330-PKYML-TR
MIC5330-NDYML-TR MIC5330-SFYML-TR MIC5330-GWYML-TR MIC5330-KDYML-TR MIC5330-JJYML-TR
MIC5330-SPYML-TR MIC5330-GFYML-TR MIC5330-JGYML-TR MIC5330-SMYML-TR MIC5330-NKYML-TR
MIC5330-SJYML-TR MIC5330-OFYML-TR MIC5330-SGYML-TR MIC5330-SNYML-TR MIC5330-MFYML-TR
MIC5330-MMYML-TR MIC5330-OOYML-TR MIC5330-MKYML-TR MIC5330-PPYML-TR MIC5330-PNYML-TR
MIC5330-PMYML-TR MIC5330-OGYML-TR MIC5330-NNYML-TR MIC5330-GGYML-TR MIC5330-PGYML-TR
MIC5330-PJYML-TR MIC5330-LLYML-TR MIC5330-SOYML-TR