Micrel MIC5368-1.5YMT High performance 200ma peak ldo in 1.6mm x 1.6mm thin mlfâ® Datasheet

MIC5367/8
High Performance 200mA Peak LDO
in 1.6mm x 1.6mm Thin MLF®
General Description
Features
The MIC5367/8 is an advanced general purpose linear
regulator offering high power supply rejection (PSRR) in
an ultra-small 1.6mm x 1.6mm package. The MIC5368
includes an auto-discharge feature that is activated when
the enable pin is low. The MIC5367/8 is capable of
sourcing 200mA peak (150mA continous) output current
and offers high PSRR making it an ideal solution for any
portable electronic application.
Ideal for battery powered applications, the MIC5367/8
offers 2% initial accuracy, low dropout voltage (180mV @
150mA), and low ground current (typically 29µA). The
MIC5367/8 can also be put into a zero-off-mode current
state, drawing virtually no current when disabled.
The MIC5367/8 has an operating junction temperature
range of –40°C to 125°C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
•
•
•
•
•
•
•
•
•
Input voltage range: 2.5V to 5.5V
200mA peak (150mA continuous) output current
Stable with 1µF ceramic output capacitors
Low dropout voltage – 180mV @ 150mA
Excellent Load/Line Transient Response
Low quiescent current – 29µA
High PSRR – 65dB
Output discharge circuit – MIC5368
High output accuracy
– ±2% initial accuracy
• Tiny 1.6mm x 1.6mm Thin MLF® package
• Thermal shutdown and current limit protection
Applications
•
•
•
•
Mobile phones
Digital cameras
GPS, PDAs, PMP, handhelds
Portable electronics
___________________________________________________________________________________________________________
Typical 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
June 2010
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Micrel, Inc.
MIC5367/8
Block Diagram
MIC5367 Block Diagram
MIC5368 Block Diagram
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MIC5367/8
Ordering Information
Part Number(1)
Marking
Code
Output
Voltage
Temperature Range
Package(2)
Lead Finish(3)
MIC5367-1.2YMT
674
1.2V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF®
Pb-Free
MIC5367-1.5YMT
F67
1.5V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF®
Pb-Free
®
Pb-Free
MIC5367-3.3YMT
67S
3.3V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF
MIC5368-1.2YMT*
684
1.2V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF®
Pb-Free
®
Pb-Free
Pb-Free
MIC5368-1.5YMT*
F68
1.5V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF
MIC5368-3.3YMT*
68S
3.3V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF®
Notes:
1.
Other voltages available. Contact Micrel for details.
2.
Thin MLF ▲ = Pin 1 identifier.
3.
Thin MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
*
MIC5368 offers Auto-Discharge function.
®
®
Pin Configuration
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
Pin Description
Pin Number
Pin Name
1
EN
2
GND
Ground.
3
VIN
Supply Input.
4
VOUT
5
NC
No Connect (Not internally connected).
6
NC
No Connect (Not internally connected).
EP
HS Pad
June 2010
Pin Function
Enable Input: Active High. High = ON; Low = OFF. Do not leave floating.
Output Voltage.
Exposed Heatsink Pad.
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MIC5367/8
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Voltage (VIN) ............................................... 0V to 6V
Enable Voltage (VEN).............................................. 0V to VIN
Power Dissipation (PD) ........................... Internally Limited(3)
Lead Temperature (soldering, 10sec)........................ 260°C
Junction Temperature (TJ) ........................–40°C to +150°C
Storage Temperature (Ts) .........................–65°C to +150°C
ESD Rating(4) .................................................................. 2kV
Supply Voltage (VIN)......................................... 2.5V to 5.5V
Enable Voltage (VEN).............................................. 0V to VIN
Junction Temperature (TJ) ........................ –40°C to +125°C
Junction Thermal Resistance
1.6 x1.6 Thin MLF-6 (θJA) ...............................92.4°C/W
Electrical Characteristics(5)
VIN = VEN = VOUT + 1V; CIN = COUT = 1µF; IOUT = 100µA; 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; –40°C to +125°C
Line Regulation
Min
Typ
Max
Units
–2.0
+2.0
%
–3.0
+3.0
%
0.3
%
VIN = VOUT +1V to 5.5V; IOUT = 100µA
0.02
Load Regulation
IOUT = 100µA to 150mA
0.3
1
%
Dropout Voltage(7)
IOUT = 50mA
60
135
mV
IOUT = 150mA
180
380
mV
(6)
(8)
IOUT = 0mA
29
39
µA
Ground Pin Current in Shutdown
VEN ≤ 0.2V
0.05
1
µA
Ripple Rejection
f = up to 1kHz; COUT = 1µF
Ground Pin Current
65
f = 1kHz – 10kHz; COUT = 1µF
dB
55
200
325
dB
Current Limit
VOUT = 0V
550
mA
Output Voltage Noise
COUT = 1µF, 10Hz to 100kHz
200
µVRMS
Auto-Discharge NFET
Resistance
MIC5368 Only; VEN = 0V; VIN = 3.6V; IOUT = –3mA
30
Ω
Enable Input
Enable Input Voltage
Logic Low
Turn-on Time
V
1.2
Logic High
Enable Input Current
0.2
V
VIL ≤ 0.2V
0.01
1
µA
VIH ≥ 1.2V
0.01
1
µA
50
125
µs
COUT = 1µF; IOUT = 150mA
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.
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 value measured at 1V differential.
For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.
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.
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MIC5367/8
Typical Characteristics
DROPOUT VOLTAGE (mV)
100µA
-80
-70
75mA
dB
-60
-50
150mA
-40
-30
V IN = 4.35V
-20
V OUT = 3.3V
-10
COUT = 1µF
160
200
140
180
120
100
80
60
40
100
1000
10000
100000
120
80
40
10mA
0
25
50
75
100
125
-40 -20
150
0
20
40
60
80 100 120
TEMPERATURE (°C)
Ground Current
vs. Supply Voltage
Ground Current
vs. Load current
Ground Current
vs. Temperature
32
30
100µA
28
26
VEN = V IN
24
VOUT = 3.3V
22
CIN = COUT = 1µF
3.5
4
4.5
5
38
36
34
32
VEN = VIN = VOUT + 1V
30
VOUT = 3.3V
36
100mA
34
32
50mA
30
100µA
28
26
VEN = V IN = VOUT + 1V
24
VOUT = 3.3V
22
28
CIN = COUT = 1µF
20
0
5.5
150mA
38
CIN = COUT = 1µF
20
3
40
GROUND CURRENT (µA)
GROUND CURRENT ( µA)
150mA
20
40
60
80
100 120 140
-40 -20
0
20
40
60
80
SUPPLY VOLTAGE (V)
LOAD CURRENT (mA)
TEMPERATURE (°C)
Output Voltage
vs. Load Current
Output Voltage
vs. Supply Voltage
Output Voltage
vs. Temperature
3.3
3.400
3.350
3.300
3.250
VIN = V EN = V OUT + 1V
3.200
VOUT = 3.3V
CIN = COUT = 1µF
3.150
3.5
50mA
3.2
3.1
150mA
3.0
2.9
2.8
VIN = V IN
2.7
VOUT = 3.3V
2.6
COUT = 1µF/10V
20
40
60
80
3.0
10
350
1
NOISE uV/√Hz
400
300
250
V OUT = 3.3V
SUPPLY VOLTAGE (V)
3.5
4.0
4.5
5.0
5.5
-40 -20
0
20
40
60
80
100 120
TEMPERATURE (°C)
VIN = VEN=4.1V
VOUT = 1.5V
0.01
COUT = 1µF
I OUT = 150mA
Noise(10Hz to 100Khz)=136µVrms
200
5
VOUT = 3.3V
CIN = COUT = 1µF
0.1
CIN = COUT = 1µF
4.5
VIN = VOUT + 13V
3.1
Output Noise
Spectral Density
Current Limit
vs. Supply Voltage
4
3.2
IOUT = 150mA
SUPPLY VOLTAGE (V)
LOAD CURRENT (mA)
3.5
3.3
3.0
2.5
100 120 140 160
3.4
CIN = COUT = 1µF
2.5
3.100
100 120
1mA
OUTPUT VOLTAGE (V)
3.4
3.450
OUTPUT VOLTAGE (V)
3.500
June 2010
50mA
60
OUTPUT CURRENT (mA)
34
3
100mA
100
20
40
0
150mA
FREQUENCY(Hz)
36
2.5
CIN = COUT = 1µF
V OUT = 3.3V
140
CIN = COUT = 1µF
0
1000000
38
GROUND CURRENT (µA)
160
0
10
OUTPUT VOLTAGE (V)
VOUT = 3.3V
20
0
CURRENT LIMIT (mA)
DROPOUT VOLTAGE (mV)
-100
-90
Dropout Voltage
vs. Temperature
Dropout Voltage
vs. Output Current
Power Supply
Rejection Ratio
5.5
0.001
10
100
1000
10000
100000 1000000
FREQUENCY (Hz)
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MIC5367/8
Functional Characteristics
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MIC5367/8
Application Information
Enable/Shutdown
The MIC5367/8 comes with an active-high enable pin
that allows the regulator to be disabled. 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.
MIC5367 and MIC5368 are Low noise 150mA LDOs.
The MIC5368 includes an auto-discharge circuit that is
switched on when the regulator is disabled through the
Enable pin. The MIC5367/8 regulator is fully protected
from damage due to fault conditions, offering linear
current limiting and thermal shutdown.
Input Capacitor
The MIC5367/8 is a high-performance, high bandwidth
device. An input capacitor of 1µF 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. 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 MIC5367/8 is designed to provide 150mA of
continuous current in a very small package. Maximum
ambient operating temperature can be calculated based
on the output current and the voltage drop across the
part. For example if the input voltage is 3.3V, the output
voltage is 1.5V, and the output current = 150mA. The
actual power dissipation of the regulator circuit can be
determined using the equation:
PD = (VIN – VOUT1) I OUT + 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 – 1.5V) × 150mA
Output Capacitor
The MIC5367/8 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 are not recommended because they 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.
PD = 0.27W
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:
⎛ TJ(max) − TA
PD(max) = ⎜⎜
θ JA
⎝
TJ(max) = 125°C, the maximum junction temperature of the
die, θJA thermal resistance = 92.4°C/W for the YMT
package.
Substituting PD for PD(max) and solving for the ambient
operating temperature will give the maximum operating
conditions for the regulator circuit. The junction-toambient thermal resistance for the minimum footprint is
92.4°C/W.
The maximum power dissipation must not be exceeded
for proper operation.
No-Load Stability
Unlike many other voltage regulators, the MIC5367/8 will
remain stable and in regulation with no load. This is
especially important in CMOS RAM keep-alive
applications.
June 2010
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⎟
⎟
⎠
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MIC5367/8
For example, when operating the MIC5367-1.5YMT at
an input voltage of 3.3V and 150mA load with a
minimum footprint layout, the maximum ambient
operating temperature TA can be determined as follows:
0.27W = (125°C – TA)/(92.4°C/W)
TA = 100°C
June 2010
Therefore the maximum ambient operating temperature
of 100°C is allowed in a 1.6mm x 1.6mm Thin 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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MIC5367/8
Bill of Materials
Item
Part Number
C1, C2
GRM155R61A105KE15D
U1
MIC5367/8-xxYMT
Manufacturer
(1)
Murata
Micrel, Inc.(2)
Description
Qty.
Capacitor, 1µF Ceramic, 10V, X7R, Size 0402
2
High Performance Single 150mA LDO in 1.6x1.6 Thin MLF®
1
Notes:
1. Murata: www.murata.com
2. Micrel, Inc.: www.micrel.com
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MIC5367/8
PCB Layout Recommendations (1.6mm x 1.6mm Thin MLF®)
Top Layer
Bottom Layer
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MIC5367/8
Package Information
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
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.
© 2010 Micrel, Incorporated.
June 2010
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