MIC5301 DATA SHEET (11/05/2015) DOWNLOAD

MIC5301
Single, 150mA µCap ULDO™
General Description
Features
The MIC5301 is a high performance, single output
ultra low LDO (ULDO™) regulator, offering low total
output noise. The MIC5301 is capable of sourcing
150mA output current and offers high PSRR and low
output noise, making it an ideal solution for RF
applications.
For battery operated applications, the MIC5301 offers
2% accuracy, extremely low dropout voltage (40mV @
150mA), and low ground current (typically 85µA total).
The MIC5301 can also be put into a zero-off-mode
current state, drawing no current when disabled.
The MIC5301 is available in the 1.6mm x 1.6mm Thin
MLF® package, occupying only 2.56mm2 of PCB area,
a 36% reduction in board area compared to SC-70
and 2mm x 2mm MLF® packages.
The MIC5301 has an operating junction temperature
range of –40°C to +125°C and is available in fixed and
adjustable output voltages in lead-free (RoHS
compliant) Thin MLF® and Thin SOT-23-5 packages.
Data sheets and support documentation can be found
on Micrel’s web site at www.micrel.com.
•
•
•
•
•
•
•
•
•
•
•
•
•
Ultra low dropout voltage – 40mV @ 150mA
Input voltage range: 2.3V to 5.5V
150mA guaranteed output current
Stable with ceramic output capacitors
Ultra low output noise – 30µVrms
Low quiescent current – 85µA total
High PSRR – up to [email protected]
35µs turn-on time
High output accuracy
± 2% initial accuracy
± 3% over temperature
Thermal shutdown and current limit protection
Tiny 6-pin 1.6mm x 1.6mm Thin MLF® leadless
package
• Thin SOT-23-5 package
•
Applications
•
•
•
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•
Mobile phones
PDAs
GPS receivers
Portable electronics
Digital still and video cameras
Typical Application
MIC5301-x.xYMT
VIN
VIN
VOUT
EN
1µF
BYP
GND
1µF
0.01µF
Portable 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
April 2008
M9999-042108
Micrel, Inc.
MIC5301
Ordering Information
Part number
Marking
(1)
Code
Output
Voltage(2)
Temperature Range
Package
MIC5301-2.85YML(4)
2JC
2.85V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm MLF
®
MIC5301YML(4)
CAA
ADJ.
–40°C to +125°C
6-Pin 1.6mm x 1.6mm MLF
®
MIC5301-1.3YMT(3,4)
13C
1.3V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF
®
MIC5301-1.5YMT(3,4)
15C
1.5V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF
®
(3,4)
18C
1.8V
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF
®
21C
25C
26C
28C
2JC
29C
30C
33C
46C
CAA
QC13
QC15
QC18
QC21
QC25
QC26
QC28
QC2J
QC29
QC30
QC33
QC46
QCAA
2.1V
2.5V
2.6V
2.8V
2.85V
2.9V
3.0V
3.3V
4.6V
ADJ.
1.3V
1.5V
1.8V
2.1V
2.5V
2.6V
2.8V
2.85V
2.9V
3.0V
3.3V
4.6V
ADJ.
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
5-Pin TSOT-23
MIC5301-1.8YMT
MIC5301-2.1YMT(3,4)
MIC5301-2.5YMT(3,4)
MIC5301-2.6YMT(3,4)
MIC5301-2.8YMT(3,4)
MIC5301-2.85YMT(3,4)
MIC5301-2.9YMT(3,4)
MIC5301-3.0YMT(3,4)
MIC5301-3.3YMT(3,4)
MIC5301-4.6YMT(3,4)
MIC5301YMT(3,4)
MIC5301-1.3YD5
MIC5301-1.5YD5
MIC5301-1.8YD5
MIC5301-2.1YD5
MIC5301-2.5YD5
MIC5301-2.6YD5
MIC5301-2.8YD5
MIC5301-2.85YD5
MIC5301-2.9YD5
MIC5301-3.0YD5
MIC5301-3.3YD5
MIC5301-4.6YD5
MIC5301YD5
®
Notes:
1.
April 2008
Under bar / Over bar symbol may not be to scale.
2.
Other Voltages available. Contact Micrel for details.
3.
Thin MLF Pin 1 indicator = ▲.
4.
MLF Thin MLF are GREEN RoHS compliant packages. Lead Finish is NiPdAu. Mold compound is Halogen Free.
®
®
®
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M9999-042108
Micrel, Inc.
MIC5301
Pin Configuration
EN 1
6
BYP
GND 2
5
NC
VIN 3
4
OUT
EN 1
6
BYP
GND 2
5
ADJ
VIN 3
4
OUT
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
Fixed (Top View)
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
Adjustable (Top View)
EN GND VIN
1
3
2
EN GND VIN
1
3
2
4
BYP
4
ADJ
5
OUT
TSOT-23-5 (D5)
Fixed (Top View)
5
OUT
TSOT-23-5 (D5)
Adjustable (Top View)
Pin Description
Pin No.
Thin MLF-6
Fixed
Pin No.
Thin MLF-6
Adj.
Pin No.
TSOT-23-5
Fixed
Pin No.
TSOT-23-5
Adj.
Pin Name
1
1
3
3
EN
2
2
2
2
GND
Ground
3
3
1
1
VIN
Supply Input.
4
4
5
5
OUT
Output Voltage.
Pin Function
Enable Input. Active High. High = on, low = off.
Do not leave floating.
5
–
–
–
NC
No connection.
–
5
–
4
ADJ
Adjust Input. Connect to external resistor voltage
divider network.
6
6
4
–
BYP
Reference Bypass: Connect external 0.01µF to GND
for reduced Output Noise. May be left open.
HS Pad
HS Pad
–
–
E PAD
April 2008
3
Exposed Heatsink Pad connected to ground
internally.
M9999-042108
Micrel, Inc.
MIC5301
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
Supply Voltage (VIN).............................. +2.3V to +5.5V
Enable Input Voltage (VEN).............................. 0V to VIN
Junction Temperature (TJ) ................. –40°C to +125°C
Junction Thermal Resistance
MLF-6 (θJA).............................................. 100°C/W
Thin MLF-6 (θJA)...................................... 100°C/W
TSOT-23-5 (θJA) ...................................... 235°C/W
Electrical Characteristics(4)
VIN = VOUT + 1.0V; COUT = 1.0µF; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C to +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
%
VIN = VOUT + 1V to 5.5V; IOUT = 100µA
0.02
0.3
0.6
%/V
%/V
IOUT = 100µA to 150mA
0.15
2.0
%
IOUT = 100µA
0.1
IOUT = 100mA
25
75
mV
IOUT = 150mA
40
100
mV
Ground Pin Current
IOUT = 0 to 150mA
85
120
µA
Ground Pin Current in
Shutdown
VEN ≤ 0.2V
0.01
2
µA
Line Regulation
Load Regulation
Dropout Voltage
(5)
Ripple Rejection
mV
f = 1kHz; COUT = 1.0µF; CBYP = 0.1µF
75
dB
f = 20kHz; COUT = 1.0µF; CBYP = 0.1µF
50
dB
Current Limit
VOUT = 0V
275
Output Voltage Noise
COUT = 1.0µF; CBYP = 0.1µF; 10Hz to 100kHz
450
850
30
mA
µVRMS
Enable Input
Enable Input Voltage
0.2
Logic Low
1
Logic High
Enable Input Current
V
V
VIL ≤ 0.2V
0.01
1
µA
VIH ≥ 1.0V
0.01
1
µA
35
100
µs
Turn-on Time
Turn-on Time
COUT = 1.0µF; CBYP = 0.1µF
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. Specification for packaged product only.
5. 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.
April 2008
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M9999-042108
Micrel, Inc.
MIC5301
Functional Diagram
VIN
VOUT
EN
VREF
QuickStart
Error
LDO
Amp
BYP
Thermal
Shutdown
Current
Limit
GND
MIC5301 Block Diagram – Fixed
VIN
VOUT
EN
QuickStart
VREF
Error
LDO
Amp
BYP
ADJ
Thermal
Shutdown
Current
Limit
GND
MIC5301 Block Diagram – Adjustable
April 2008
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Micrel, Inc.
MIC5301
Typical Characteristics
-90
-80
-70
-60
Power Supply
Rejection Ratio
50mA
100µA
-50
-40
150mA
-30
-20 VIN = 3.85V
-10 VOUT = 2.85V
= 1µF
C
0 COUT = 0.1µF
BYP
10
0.1
1
10
100
FREQUENCY (kHz)
2.88
Dropout Voltage
vs. Temperature
1,000
60
55 VIN = VOUT + 1V
= 2.8V
V
50 COUT = 1µF
OUT
45
40
35
30
25
20
15
10
5
0
50
45
40
35
150mA
30
25
20
15
10
100mA
50mA
25mA
5
0
0
TEMPERATURE (°C)
Output Voltage
vs. Output Current
3.0
2.87
Output Voltage
vs. Supply Voltage
3.45
2.5
2.86
1.5
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
25 50 75 100 125 150
OUTPUT CURRENT (mA)
Output Voltage
vs. Temperature
3.25
VOUT = 2.85V
2.0
2.85
Dropout Voltage
vs. Output Current
3.05
100µA
2.85
150mA
2.84
2.83
2.82
0
100
90
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
25 50 75 100 125 150
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
1.0
2.65
0.5
2.45
0
0
90
88
80
70
60
50
86
84
82
80
40
30
20
10
78
76
74
0
0
510
500
490
480
470
460
450
440
430
420
410
3.0
April 2008
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
25 50 75 100 125 150
OUTPUT CURRENT (mA)
Current Limit
vs. Input Voltage
72
70
1
2
3
4
5
SUPPLY VOLTAGE (V)
6
Ground Current
vs. Temperature
150mA
100µA
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
TEMPERATURE (°C)
10
2.25
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
IOUT = 100µA
TEMPERATURE (°C)
100
90
80
70
60
50
Ground Current
vs. Supply Voltage
150mA
100µA
40
30
20
10
0
3.0
3.5
4.0
4.5
5.0
SUPPLY VOLTAGE (V)
5.5
Output Noise
Spectral Density
1
0.1
VEN = VIN
COUT = 1µF
3.5
4.0
4.5
5.0
INPUT VOLTAGE (V)
5.5
0.01 VIN = 4V
VOUT = 2.85V
COUT = 1µF
CBYP = 0.1µF
0.001
0.01 0.1
1
10 100 1,000 10,000
FREQUENCY (kHz)
6
M9999-042108
Micrel, Inc.
MIC5301
Functional Characteristics
Load Transient
Enable
(0.5V/div)
Output Voltage
(20mV/div)
Enable Turn-On
150mA
VIN = VOUT + 1V
Output Current
(50mA/div)
VOUT = 2.85V
Output Voltage
(1V/div)
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
CBYP = 0.1µF
COUT = 1µF
10mA
Time (10µs/div)
Time (40µs/div)
Line Transient
5V
Input Voltage
(2V/div)
4V
VIN = VOUT + 1V
VOUT = 2.85V
COUT = 1µF
CBYP = 0.1µF
Output Voltage
(50mV/div)
IOUT = 10mA
Time (40µs/div)
April 2008
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M9999-042108
Micrel, Inc.
MIC5301
Applications Information
PSRR. Turn-on time increases slightly with respect to
bypass capacitance. A unique, quick-start circuit
allows the MIC5301 to drive a large capacitor on the
bypass pin without significantly slowing turn-on time.
Refer to the Typical Characteristics section for
performance with different bypass capacitors.
Enable/Shutdown
The MIC5301 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.
No-Load Stability
Unlike many other voltage regulators, the MIC5301
will remain stable and in regulation with no load. This
is especially important in CMOS RAM keep-alive
applications.
Input Capacitor
The MIC5301 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 highfrequency capacitors, such as small-valued NPO
dielectric-type capacitors, help filter out highfrequency noise and are good practice in any RFbased circuit.
Adjustable Regulator Application
Adjustable regulators use the ratio of two resistors to
multiply the reference voltage to produce the desired
output voltage. The MIC5301 can be adjusted from
1.25V to 5.5V by using two external resistors (Figure
1). The resistors set the output voltage based on the
following equation:
R1 ⎞
⎛
VOUT = VREF ⎜1 +
⎟
R2 ⎠
⎝
VREF = 1.25V
Output Capacitor
The MIC5301 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.
MIC5301YMT
VIN
R1
1µF
EN
ADJ
GND
1µF
R2
Figure 1. Adjustable Voltage Output
Thermal Considerations
The MIC5301 is designed to provide 150mA of
continuous current. 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 5.0V, the output voltage is
2.8V and the output current = 150mA.
The actual power dissipation of the regulator circuit
can be determined using the equation:
PD = (VIN – VOUT) IOUT + VIN IGND
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
April 2008
VOUT
VIN VOUT
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 = (5V – 2.8V) × 150mA
PD = 0.33W
8
M9999-042108
Micrel, Inc.
MIC5301
To determine the maximum ambient operating
temperature of the package, use the junction-toambient thermal resistance of the device and the
following basic equation:
PD(MAX) =
⎛
⎝
The maximum power dissipation must not be
exceeded for proper operation.
For example, when operating the MIC5301-2.8YML at
an input voltage of 5V and 150mA load with a
minimum footprint layout, the maximum ambient
operating temperature TA can be determined as
follows:
TJ(MAX) - TA
JA
0.33W = (125°C – TA)/(100°C/W)
TJ(max) = 125°C, the maximum junction temperature of
the die θJA thermal resistance = 100°C/W.
TA=92°C
The table below shows junction-to-ambient thermal
resistance for the MIC5301 in the 6-pin 1.6mm x
1.6mm MLF® package.
θJA Recommended
Minimum Footprint
Package
6-Pin 1.6x1.6 MLF
6-Pin 1.6x1.6
®
Thin MLF
Therefore, a 2.8V application with 150mA of output
current can accept an ambient operating temperature
of 92°C in a 1.6mm x 1.6mm 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:
®
100°C/W
100°C/W
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
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 100°C/W.
April 2008
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M9999-042108
Micrel, Inc.
MIC5301
Package Information
6-Pin 1.6mm x 1.6mm MLF® (ML)
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
April 2008
10
M9999-042108
Micrel, Inc.
MIC5301
5-Pin TSOT-23 (D5)
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.
© 2006 Micrel, Inc.
April 2008
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M9999-042108