MIC5330-NKYML [MICREL]
Dual, 300mA UCap LDO in 2mm x 2mm MLF; 双通道, 300毫安UCAP LDO采用2mm x 2mm MLF型号: | MIC5330-NKYML |
厂家: | MICREL SEMICONDUCTOR |
描述: | Dual, 300mA UCap LDO in 2mm x 2mm MLF |
文件: | 总10页 (文件大小:285K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MIC5330
Dual, 300mA µCap LDO in 2mm x 2mm MLF®
General Description
Features
• 2.3V to 5.5V input voltage range
• Ultra-low dropout voltage ULDO™ 75mV @ 300mA
• High PSRR - >70dB @ 1KHz
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.
• 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
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.
• 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
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 can be found
on Micrel’s web site at www.micrel.com.
Typical Application
MIC5330-x.xYML
Rx/Synth
Tx
VIN
VOUT 1
VOUT 2
EN 1
EN 2
BYP
RF
Transceiver
1µF
GND
1µF
1µF
0.1µF
RF Power Supply Circuit
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
M9999-080306
August 2006
Micrel, Inc.
MIC5330
Block Diagram
VOUT 1
VOUT 2
VIN
LDO1
LDO2
EN 1
EN 2
Enable
Reference
BYP
GND
MIC5330 Fixed Block Diagram
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MIC5330
Ordering Information
Manufacturing
Part Number
Junction
Temperature Range
Part number
Voltage
1.8V/1.5V
1.8V/1.6V
2.5V/1.8V
2.5V/2.5V
2.6V/1.85
2.6V/1.8V
2.7V/2.7V
2.8V/1.5V
2.8V/1.8V
2.8V/2.6V
2.8V/2.8V
2.8V/2.85V
2.85V/1.85V
2.85V/2.6V
2.85V/2.85V
2.9V/1.5V
2.9V/1.8V
2.9V/2.9V
3.0V/1.8V
3.0V/2.5V
3.0V/2.6V
3.0V/2.8V
3.0V/2.85V
3.0V/3.0V
3.3V/1.5V
3.3V/1.8V
3.3V/2.5V
3.3V/2.6V
3.3V/2.7V
3.3V/2.8V
3.3V/2.85V
3.3V/2.9V
3.3V/3.0V
3.3V/3.2V
3.3V/3.3V
Package
MIC5330-1.8/1.5YML
MIC5330-1.8/1.6YML
MIC5330-2.5/1.8YML
MIC5330-2.5/2.5YML
MIC5330-2.6/1.85YML
MIC5330-2.6/1.8YML
MIC5330-2.7/2.7YML
MIC5330-2.8/1.5YML
MIC5330-2.8/1.8YML
MIC5330-2.8/2.6YML
MIC5330-2.8/2.8YML
MIC5330-2.8/2.85YML
MIC5330-2.85/1.85YML
MIC5330-2.85/2.6YML
MIC5330-2.85/2.85YML
MIC5330-2.9/1.5YML
MIC5330-2.9/1.8YML
MIC5330-2.9/2.9YML
MIC5330-3.0/1.8YML
MIC5330-3.0/2.5YML
MIC5330-3.0/2.6YML
MIC5330-3.0/2.8YML
MIC5330-3.0/2.85YML
MIC5330-3.0/3.0YML
MIC5330-3.3/1.5YML
MIC5330-3.3/1.8YML
MIC5330-3.3/2.5YML
MIC5330-3.3/2.6YML
MIC5330-3.3/2.7YML
MIC5330-3.3/2.8YML
MIC5330-3.3/2.85YML
MIC5330-3.3/2.9YML
MIC5330-3.3/3.0YML
MIC5330-3.3/3.2YML
MIC5330-3.3/3.3YML
MIC5330-GFYML
MIC5330-GWYML
MIC5330-JGYML
MIC5330-JJYML
MIC5330-KDYML
MIC5330-KGYML
MIC5330-LLYML
MIC5330-MFYML
MIC5330-MGYML
MIC5330-MKYML
MIC5330-MMYML
MIC5330-MNYML
MIC5330-NDYML
MIC5330-NKYML
MIC5330-NNYML
MIC5330-OFYML
MIC5330-OGYML
MIC5330-OOYML
MIC5330-PGYML
MIC5330-PJYML
MIC5330-PKYML
MIC5330-PMYML
MIC5330-PNYML
MIC5330-PPYML
MIC5330-SFYML
MIC5330-SGYML
MIC5330-SJYML
MIC5330-SKYML
MIC5330-SLYML
MIC5330-SMYML
MIC5330-SNYML
MIC5330-SOYML
MIC5330-SPYML
MIC5330-SRYML
MIC5330-SSYML
–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
–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
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
8-Pin 2x2 MLF®
Other voltage options available. Contact Micrel for more details.
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MIC5330
Pin Configuration
VIN
GND
BYP
EN2
1
2
3
4
8
7
6
5
VOUT1
VOUT2
NC
EN1
8-Pin 2mm × 2mm MLF (ML)
Top View
Pin Description
Pin Number
MLF-8
Pin Name
Pin Function
1
2
3
VIN
GND
BYP
Supply Input.
Ground
Reference Bypass: Connect external 0.1µF to GND to reduce output noise.
May be left open when bypass capacitor is not required.
4
5
EN2
EN1
Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
6
7
8
NC
Not internally connected
Regulator Output – LDO2
Regulator Output – LDO1
VOUT2
VOUT1
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MIC5330
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
-2.0
-3.0
Typ
Max
+2.0
+3.0
Units
%
Output Voltage Accuracy
Variation from nominal VOUT
Variation from nominal VOUT; –40°C to +125°C
%
Line Regulation
VIN = VOUT + 1V to 5.5V; IOUT = 100µA
0.02
0.3
0.6
%/V
%/V
Load Regulation
IOUT = 100µA to 300mA
IOUT = 100µA
0.5
0.1
25
%
Dropout Voltage (Note 6)
mV
mV
mV
mV
µA
µA
µA
µA
dB
dB
I
I
I
OUT = 100mA
OUT = 150mA
OUT = 300mA
75
100
200
120
120
200
2
35
75
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
EN1 = EN2 = 0V
85
85
150
0.01
70
Ground Current in Shutdown
Ripple Rejection
f = 1kHz; COUT = 1.0µF; CBYP = 0.1µF
f = 20kHz; COUT = 1.0µF; CBYP = 0.1µF
65
Current Limit
VOUT = 0V
350
1.1
550
30
950
0.2
mA
Output Voltage Noise
Enable Inputs (EN1 / EN2)
Enable Input Voltage
COUT = 1.0µF; CBYP = 0.1µF; 10Hz to 100kHz
µVRMS
Logic Low
Logic High
VIL ≤ 0.2V
VIH ≥ 1.0V
V
V
Enable Input Current
0.01
0.01
µA
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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MIC5330
Typical Characteristics
Power Supply
Power Supply
Power Supply
Rejection Ratio
Rejection Ratio
Rejection Ratio
-80
-80
-70
-60
-50
-40
-30
-20
-10
0
-80
-70
-60
-50
-40
-30
-20
-10
0
-70
-60
-50
-40
-30
V
V
C
C
= 3.4V
= 3V
= 1µF
= 0.1µF
= 50mA
V
V
C
C
= 3.6V
= 3V
= 1µF
= 0.1µF
= 150mA
V
V
C
C
= 3.9V
= 3V
= 1µF
= 0.1µF
= 300mA
IN
OUT
OUT
BYP
IN
OUT
OUT
BYP
IN
OUT
OUT
BYP
-20
-10
0
I
I
I
OUT
OUT
OUT
0.1
1
10
100
1,000
0.1
1
10
100
1,000
0.1
1
10
100
1,000
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
Output Voltage
vs. Temperature
Dropout Voltage
vs. Output Current
Ground Current
vs. Temperature
3.20
80
90
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.80
2.75
2.70
88
86
84
82
80
78
76
74
72
70
300mA
70
60
50
40
30
20
10
0
150mA
100mA
50mA
100µA
V
V
V
= V
+ 1V
IN
IN
OUT
= EN1 = EN2
= 3V
V
V
= V
+ 1V
IN
OUT
= 3V
OUT
OUT
OUT
V
= 3V
C
I
= 1µF
OUT
C
= 1µF
OUT
C
= 1µF
= 100µA
OUT
EN1 = V EN2 = GND
OUT
IN,
20 40 60 80
TEMPERATURE (°C)
0
50 100 150 200 250 300
OUTPUT CURRENT (mA)
20 40 60 80
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
Output Voltage
vs. Output Current
Output Voltage
vs. Input Voltage
3.3
3.2
3.1
3.0
2.9
2.8
2.7
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
90
80
70
60
50
40
30
20
10
0
300mA
V
V
= 3V
OUT
IN
= EN1 = EN2
C
= 1µF
OUT
300mA
150mA
150mA
100mA
V
V
= V
+ 1V
50mA
IN
OUT
100µA
= 3V
OUT
V
= V
OUT
+ 1V
5
IN
OUT
100µA
10mA
C
= 1µF
OUT
C
= 1µF
20 40 60 80
TEMPERATURE (°C)
0
50 100 150 200 250 300
OUTPUT CURRENT (mA)
1
2
3
4
INPUT VOLTAGE (V)
Ground Current
Current Limit
Output Noise
vs. Output Current
vs. Input Voltage
Spectral Density
90
88
86
84
82
80
78
76
74
72
70
600
580
560
540
520
500
480
460
440
420
400
10
1
0.1
V
V
C
C
I
= 4V
IN
V
V
V
= V
+ 1V
= V
= 3V
IN
OUT
0.01
OUT
OUT
BYP
= 3V
= V
= C
= 1µF
OUT
EN1
C
V
= 1µF
OUT
EN
= 0.1µF
= 60mA
EN2
IN
= 1µF
= V
C
IN
OUT1
OUT2
LOAD
0.001
0
50 100 150 200 250 300
OUTPUT CURRENT (mA)
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
0.01 0.1
1
10
100 1,000
FREQUENCY (kHz)
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Micrel, Inc.
MIC5330
Functional Characteristics
Enable Turn-On
Load Transient
V
V
= V + 1V
OUT
IN
300mA
= 3V
OUT
C
C
= 1µF
= 0.1µF
OUT
BYP
V
V
= V + 1V
OUT
IN
= 3V
10mA
OUT
C
C
= 1µF
= 0.01µF
OUT
BYP
Time (20µs/div)
Time (10µs/div)
Line Transient
5V
4V
V
V
= V + 1V
OUT
IN
= 3V
OUT
C
C
= 1µF
= 0.1µF
= 10mA
OUT
BYP
I
OUT
Time (40µs/div)
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MIC5330
Applications Information
Enable/Shutdown
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.
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
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.
floating;
a floating enable pin may cause an
indeterminate state on the output.
Input Capacitor
Thermal Considerations
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.
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
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.
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
PD = 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:
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.
TJ(MAX) - TA
⎛
⎝
PD(MAX)
=
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.
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
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Micrel, Inc.
MIC5330
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:
θJA Recommended
Minimum Footprint
Package
8-Pin 2x2 MLF®
90°C/W
0.99W = (125°C – TA)/(90°C/W)
TA=62.9°C
Thermal Resistance
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:
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
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
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Micrel, Inc.
MIC5330
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
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.
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