Micrel MIC5310-2.85/1.85YML Dual 150ma î¼cap ldo in 2mm x 2mm mlfâ® Datasheet

MIC5310
Dual 150mA µCap LDO in 2mm x 2mm MLF®
General Description
Features
The MIC5310 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
MIC5310 integrates two high-performance 150mA
ULDOs into a tiny 2mm x 2mm leadless MLF®
package, which provides exceptional thermal package
characteristics.
The MIC5310 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 MIC5310 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.
•
•
•
•
•
•
•
•
•
•
•
•
2.3V to 5.5V input voltage range
Ultra-low dropout voltage ULDO™ 35mV @ 150mA
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
µCap stable with 1µF ceramic capacitor
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
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
March 2011
M9999-032411-C
Micrel, Inc.
MIC5310
RF Power Supply Circuit
Block Diagram
MIC5310 Fixed Block Diagram
March 2011
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M9999-032411-C
Micrel, Inc.
MIC5310
Ordering Information
Junction
Temperature Range
Package3
1.8V/1.5V
–40°C to +125°C
8-Pin 2x2 MLF®
GGZ
1.8V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-GWYML
GWZ
1.8V/1.6V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.5/1.8YML
MIC5310-JGYML
JGZ
2.5V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.5/2.5YML
MIC5310-JJYML
JJZ
2.5V/2.5V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.6/1.85YML
MIC5310-KDYML
KDZ
2.6V/1.85
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.6/1.8YML
MIC5310-KGYML
KGZ
2.6V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.7/2.7YML
MIC5310-LLYML
LLZ
2.7V/2.7V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.8/1.5YML
MIC5310-MFYML
MFZ
2.8V/1.5V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.8/1.8YML
MIC5310-MGYML
MGZ
2.8V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.8/2.6YML
MIC5310-MKYML
MKZ
2.8V/2.6V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.8/2.8YML
MIC5310-MMYML
MMZ
2.8V/2.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.85/1.85YML
MIC5310-NDYML
NDZ
2.85V/1.85V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.85/2.6YML
MIC5310-NKYML
NKZ
2.85V/2.6V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.85/2.85YML
MIC5310-NNYML
NNZ
2.85V/2.85V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.9/1.5YML
MIC5310-OFYML
OFZ
2.9V/1.5V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.9/1.8YML
MIC5310-OGYML
OGZ
2.9V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-2.9/2.9YML
MIC5310-OOYML
OOZ
2.9V/2.9V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.0/1.8YML
MIC5310-PGYML
PGZ
3.0V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.0/2.5YML
MIC5310-PJYML
PJZ
3.0V/2.5V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.0/2.6YML
MIC5310-PKYML
PKZ
3.0V/2.6V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.0/2.8YML
MIC5310-PMYML
PMZ
3.0V/2.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.0/2.85YML
MIC5310-PNYML
PNZ
3.0V/2.85V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.0/3.0YML
MIC5310-PPYML
PPZ
3.0V/3.0V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/1.5YML
MIC5310-SFYML
SFZ
3.3V/1.5V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/1.8YML
MIC5310-SGYML
SGZ
3.3V/1.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/2.5YML
MIC5310-SJYML
SJZ
3.3V/2.5V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/2.6YML
MIC5310-SKYML
SKZ
3.3V/2.6V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/2.8YML
MIC5310-SMYML
SMZ
3.3V/2.8V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/2.85YML
MIC5310-SNYML
SNZ
3.3V/2.85V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/2.9YML
MIC5310-SOYML
SOZ
3.3V/2.9V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/3.0YML
MIC5310-SPYML
SPZ
3.3V/3.0V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/3.2YML
MIC5310-SRYML
SRZ
3.3V/3.2V
–40°C to +125°C
8-Pin 2x2 MLF®
MIC5310-3.3/3.3YML
MIC5310-SSYML
SSZ
3.3V/3.3V
–40°C to +125°C
8-Pin 2x2 MLF®
Functional
Part number
Ordering
Part Number
MIC5310-1.8/1.5YML
MIC5310-GFYML
GFZ
MIC5310-1.8/1.8YML
MIC5310-GGYML
MIC5310-1.8/1.6YML
Marking
1
VOUT1/VOUT22
Notes:
1.
Over bar symbol ( ¯ ) may not be to scale. Over bar at Pin 1.
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.
March 2011
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Micrel, Inc.
MIC5310
Pin Configuration
8-Pin 2mm x 2mm MLF (ML)
Top View
Pin Description
Pin Number
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.
March 2011
6
NC
7
VOUT2
Regulator Output – LDO2
Not internally connected
8
VOUT1
Regulator Output – LDO1
–
EP
Exposed Pad. Connect EP to GND.
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M9999-032411-C
Micrel, Inc.
MIC5310
Absolute Maximum Ratings(1)
Operating Ratings(2)
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
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
Output Voltage Accuracy
Variation from nominal VOUT
Variation from nominal VOUT; –40°C to +125°C
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
0.6
%/V
%/V
Load Regulation
IOUT = 100µA to 150mA
0.5
2.0
%
Dropout Voltage (Note 6)
IOUT = 100µA
0.1
IOUT = 50mA
12
50
mV
IOUT = 100mA
25
75
mV
Ground Current
mV
IOUT = 150mA
35
100
mV
EN1 = High; EN2 = Low; IOUT = 100µA to 150mA
85
120
µA
EN1 = Low; EN2 = High; IOUT = 100µA to 150mA
85
120
µA
µA
µA
EN1 = EN2 = High; IOUT1 = 150mA, IOUT2 = 150mA
150
190
Ground Current in Shutdown
EN1 = EN2 = 0V
0.01
2
Ripple Rejection
f = 1kHz; COUT = 1.0µF; CBYP = 0.1µF
70
f = 20kHz; COUT = 1.0µF; CBYP = 0.1µF
65
300
Current Limit
VOUT = 0V
Output Voltage Noise
COUT = 1.0 µF; CBYP = 0.1µF; 10Hz to 100kHz
dB
550
dB
950
30
mA
µVRMS
Enable Inputs (EN1 / EN2)
Enable Input Voltage
0.2
Logic Low
1.1
Logic High
Enable Input Current
V
V
VIL ≤ 0.2V
0.01
µA
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.
March 2011
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Micrel, Inc.
MIC5310
Typical Characteristics
MIC5310 - Output Noise
Spectral Density
10
Dropout Voltage
Ground Current vs. Temperature
90
40
88
30
0.1
Dropout (mV)
Noise uV/√Hz
1
Ground Current (uA)
35
Vin=Vout +1
Cout =1uF
Cby p=0.01u
F
V t =3V
0.01
25
20
15
Vin=Vout+1
Vout=3V
10
Cout=1uF
5
100
0
20
40
60
Frequency (Hz)
Vin = Vout + 1V
EN1 = Vin, EN2 =
GND
Vout = 3V
Cout = 1 uF
50 mA
76
100 uA
74
80
100
120
-40
140
-20
0
20
40
60
80
100
120
Temperature (°C)
Output Voltage vs Output
Current
3.3
Dropout Characteristics
3.5
3.15
3.2
3.05
3
2.95
Vin = Vout + 1V
Vin = EN1 = EN2
2.9
2.85
Vout = 3V
Iout = 100 uA
Cout = 1 uF
2.8
3
Output Voltage (V)
Output Voltage (V)
3.1
3.1
3
2.9
Vin=Vout +1
2.8
Vout =3V
2.75
2.5
100uA
2
150mA
1.5
1
Cout =1uF
0.5
Cout =1uF
2.7
0
2.7
-40
-20
0
20
40
60
80
100
120
0
25
Temperature (°C)
50
75
100
125
0
150
Output Current (mA)
Dropout Voltage
Ground Current vs Output
Current
50
1
2
3
4
5
6
Input Voltage (V)
Current Limit vs. Input Voltage
600
Vout = 3 V
Vin = Vout + 1 V
90
580
Vin = EN1 = EN2
88
560
Cout = 1 uF
86
100 mA
30
20
50 mA
10
100u A
10mA
Ground Current (uA)
1 50 mA
Current Limit (mA)
Output Voltage (V)
100 mA
78
•
3.2
Dropout Voltage (mV)
80
Iout (mA)
Output Voltage
40
82
70
0
1,000 10,000 100,00 1,000,0 10,000,
0
00
000
84
72
0.001
10
150 mA
86
84
82
Vout=3V
Vin=Vout+1V
Ven1=Ven2=Vin
80
78
76
Cout1=Cout2=1uF
-60 -40 -20
March 2011
0
20
40
60
80
Temperature (°C)
100 120 140
520
500
480
460
74
440
72
420
70
0
540
Cout=1uF
Ven=Vin
400
0
25
50
75
100
Output Current (mA)
6
125
150
2
3
4
5
Input Voltage (V)
M9999-032411-C
Micrel, Inc.
MIC5310
Typical Characteristics (Continued)
Power Supply Rejection Ratio
-80
-80
-70
-70
-60
-60
-50
-50
-40
dB
dB
Power Supply Rejection Ratio
-40
-30
Vin= 3.4V
Vout=3V
-20
Cout=1uF
Iout=50mA
-20
-10
Cbyp=0.1uF
-10
0
0
10
100
-30
1,000
10,000
100,000
Frequency (Hz)
March 2011
1,000,000
10
100
Vin= 3.6V
Vout =3V
Cout =1uF
Iout =150mA
Cby p=0.1uF
1,000
10,000
100,000
1,000,000
Frequency (Hz)
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Micrel, Inc.
MIC5310
Functional Characteristics
March 2011
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Micrel, Inc.
MIC5310
Applications Information
Enable/Shutdown
The MIC5310 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.
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 MIC5310 to drive a large capacitor on the
bypass pin without significantly slowing turn on time.
Input Capacitor
The MIC5310 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.
No-Load Stability
Unlike many other voltage regulators, the MIC5310
will remain stable and in regulation with no load. This
is especially important in CMOS RAM keep alive
applications.
Thermal Considerations
The MIC5310 is designed to provide 150mA 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,
1.5V for VOUT2 and the output current = 150mA. 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) × 150mA + (3.3V -1.5) × 150mA
PD = 0.345W
To determine the maximum ambient operating
temperature of the package, use the junction-toambient thermal resistance of the device and the
following basic equation:
Output Capacitor
The MIC5310 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.
March 2011
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 MIC5310 in different packages.
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M9999-032411-C
Micrel, Inc.
MIC5310
Package
θJA Recommended
Minimum Footprint
8-Pin 2x2 MLF®
90°C/W
Thermal Resistance
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.
March 2011
For example, when operating the MIC5310-MFYML at
an input voltage of 3.3V and 150mA loads at each
output with a minimum footprint layout, the maximum
ambient operating temperature TA can be determined
as follows:
0.345W = (125°C – TA)/(90°C/W)
TA = 93.95°C
Therefore, a 2.8V/1.5V application with 150mA at
each output current can accept an ambient operating
temperature of 93.95°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
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M9999-032411-C
Micrel, Inc.
MIC5310
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
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.
March 2011
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