MIC5264
150mA µCap Dual LDO Regulator
General Description
The MIC5264 is a dual 150mA LDO in tiny 2.5mm x
2.5mm MLF
®
packaging ideal for applications where cost
is the priority. The MIC5264 is ideal for any application in
portable electronics, including both RF and Digital
applications. With low output noise and high PSRR, the
MIC5264 is ideal for noise sensitive RF applications. While
the fast transient response and active shutdown circuitry
makes it well-suited for powering digital circuitry.
The MIC5264 has a 2.7V to 5.5V input operating voltage
range, making it ideal for operation from a single cell
lithium ion battery or fixed 3.3V and 5V systems. Each
LDO is completely independent and can be powered
independently, making it easier to use in distributed power
applications.
The MIC5264 offers low dropout voltage (210mV at
150mA), low output noise (57µVrms), high PSRR and
integrates an active shutdown circuit on the output of each
regulator to discharge the output voltage when disabled.
Data sheets and supporting documentation can be found
on Micrel’s web site at: www.micrel.com
Features
•
•
•
•
•
•
•
•
•
•
2.7V to 5.5V supply voltage.
Low 75µA quiescent current per LDO.
Tiny 2.5mm x 2.5mm MLF
®
package.
Low Noise – 57µVrms.
High PSRR – 60dB at 1kHz.
Low dropout voltage – 210mV at 150mA.
Stable with ceramic output capacitors.
Independent enable pins.
Fast transient response.
Active shutdown on both outputs.
Applications
•
•
•
Cellular Telephones
PDAs
GPS Receivers
Typical Application
MIC5264-xxYML
VIN 1
VIN 2
EN 1
EN 2
1µF
0.01µF
BYP1
GND
BYP2
0.01µF
-80
Power Supply
Rejection Ratio
50mA
OUT 1
OUT 2
1µF
1µF
Rx/Synth
Tx
RF
Transceiver
-70
-60
-50
-40
-30
100mA
150mA
RF Power Supply
-20 V
IN
= V
OUT
+ 1V
V
OUT
= 3.0V
-10 BYP = 0.1µF
C
OUT
= 1µF
0
0.01 0.1
1
10
100
FREQUENCY (kHz)
1000
MicroLeadFrame
and MLF are 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
May 2006
M9999-052406
(408) 955-1690
Micrel, Inc.
MIC5264
Ordering Information
Part Number
Full
MIC5264-2.5/1.8YML
MIC5264-2.6/1.8YML
MIC5264-2.6/2.6YML
MIC5264-2.8/1.5YML
MIC5264-2.8/2.5YML
MIC5264-2.8/2.6YML
MIC5264-2.8/2.8YML
MIC5264-2.85/1.8YML
MIC5264-2.85/2.85YML
MIC5264-2.9/1.5YML
MIC5264-2.9/1.8YML
MIC5264-2.9/2.6YML
MIC5264-3.0/1.8YML
MIC5264-3.0/2.5YML
MIC5264-3.0/2.8YML
MIC5264-3.0/3.0YML
MIC5264-3.3/1.8YML
MIC5264-3.3/2.5YML
MIC5264-3.3/3.0YML
MIC5264-3.3/3.3YML
Manufacturing
MIC5264-JGYML
MIC5264-KGYML
MIC5264-KKYML
MIC5264-MFYML
MIC5264-MJYML
MIC5264-MKYML
MIC5264-MMYML
MIC5264-NGYML
MIC5264-NNYML
MIC5264-OFYML
MIC5264-OGYML
MIC5264-OKYML
MIC5264-PGYML
MIC5264-PJYML
MIC5264-PMYML
MIC5264-PPYML
MIC5264-SGYML
MIC5264-SJYML
MIC5264-SPYML
MIC5264-SSYML
Vo1/Vo2
2.5V/1.8V
2.6V/1.8V
2.6V/2.6V
2.8V/1.5V
2.8V/2.5V
2.8V/2.6V
2.8V/28V
2.85V/1.8V
2.85V/2.85V
2.9V/1.5V
2.9V/1.8V
2.9V/2.6V
3.0V/1.8V
3.0V/2.5V
3.0V/2.8V
3.0V/3.0V
3.3V/1.8V
3.3V/2.5V
3.3V/3.0V
3.3V/3.3V
Marking
Code
MAJG
MAKG
MAKK
MAMF
MAMJ
MAMK
MAMM
MANG
MANN
MAOF
MAOG
MAOK
MAPG
MAPJ
MAPM
MAPP
MASG
MASJ
MASP
MASS
Junction Temp.
Range
–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
Package
Pb-Free
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
2.5mm x 2.5mm MLF
2.5mm x 2.5mm MLF
®
®
2.5mm x 2.5mm MLF
®
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
2.5mm x 2.5mm MLF
®
Note:
1. Other Voltage Combinations available. Contact Micrel for details.
May 2006
2
M9999-052406
(408) 955-1690
Micrel, Inc.
MIC5264
Pin Configuration
GND1 1
IN1 2
OUT1 3
BYP2 4
EN2 5
10 EN1
9 BYP1
8 OUT2
7 IN2
6 GND2
2.5mm × 2.5mm MLF-10L (ML)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
EP
Pin Name
GND1
IN1
OUT1
BYP2
EN2
GND2
IN2
OUT2
BYP1
EN1
Exposed Pad
Pin Function
Ground
Supply Voltage
Regulator Output
Reference Bypass: Connect external 0.01µF <= C
BYP
<= 1.0µF capacitor to
GND to reduce output noise. Do not leave open.
Enable/Shutdown (Input): CMOS compatible input. Logic high = enable; logic low
= shutdown. Do not leave open.
Ground
Supply Voltage
Regulator Output
Reference Bypass: Connect external 0.01µF <= C
BYP
<= 1.0µF capacitor to
GND to reduce output noise. Do not leave open.
Enable/Shutdown (Input): CMOS compatible input. Logic high = enable; logic low
= shutdown. Do not leave open.
Exposed Pad. Connect to external ground pins.
May 2006
3
M9999-052406
(408) 955-1690
Micrel, Inc.
MIC5264
Absolute Maximum Ratings
(1)
Supply Input Voltage (V
IN1/IN2
) .............................. 0V to +7V
Enable Input Voltage (V
EN1/EN2
)............................ 0V to +7V
Power Dissipation (P
D
) .......................... Internally Limited
(3)
Junction Temperature (T
J
) ...........................-40°C to 125°C
Lead Temperature (soldering, #sec.)...........-55°C to 150°C
Storage Temperature (T
s
) .......................................... 260°C
EDS Rating
(4)
................................................................. 2kV
Operating Ratings
(2)
Supply Input Voltage (V
IN1/IN2
) ...................... +2.7V to +5.5V
Enable Input Voltage (V
EN1/EN2
) ............................ 0V to +V
IN
Junction Temperature (T
A
) ........................ –40°C to +125°C
Junction Thermal Resistance
MLF-10L (θ
JA
) ....................................................75°C/W
Electrical Characteristics
(5)
V
EN
= V
IN
= V
OUT
+ 1V; I
L
=100µA; C
L
= 1.0µF; C
BYP
= 0.01µF per output; T
A
= 25°C,
bold
values indicate –40°C< T
A
<
+85°C; unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage
Quiescent Current
Ground Pin Current (Per
Regulator)
PSRR (Ripple Rejection)
Current Limit
Output Noise
Enable Input (EN1 and EN2)
Enable Input Logic Low
Enable Input Logic High
Enable Input Current
Thermal Shutdown
Thermal Shutdown Temperature
Hysteresis
Turn-on/Turn-off Characteristics
Turn-on Time
Discharge Resistance
Condition
I
OUT
= 100uA
V
IN
= V
OUT
+1V to 5.5V
I
OUT
= 0.1mA to 150mA
I
OUT
= 50mA
I
OUT
= 150mA
V
EN
< 0.4V
I
OUT
= 0mA
I
OUT
= 150mA
f = 100Hz, C
BYP
= 0.1µF, I
LOAD
= 50mA
f = 1kHz, C
BYP
= 0.1µF, I
LOAD
= 50mA
f = 10kHz, C
BYP
= 0.1µF, I
LOAD
= 50mA
V
OUT
= 0V
C
OUT
= 1.0µF, C
BYP
= 0.1µF, f = 10Hz to 100kHz
V
IN
= 2.7V to 5.5V, regulator shutdown
V
IN
= 2.7V to 5.5V, regulator enabled
V
IL
< 0.4V, regulator shutdown
V
IH
> 1.6V, regulator enabled
Min
-2
-3
0.05
2
75
210
0.2
75
80
62
64
64
225
57
Typ
Max
2
3
0.2
3
500
2
120
150
Units
%
%
%
%
mV
mV
µA
µA
µA
dB
dB
dB
mA
µV (rms)
0.2
1.6
0.01
0.01
150
10
40
500
150
V
V
µA
µA
°C
°C
µs
Ω
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 T
A
(ambient temperature) is P
D(max)
= (T
J(max)
–T
A
)/θ
JA
. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. The
θ
JA
of the MIC5264x.xYML (all versions) is
75°C/W on a PC board (see ”Thermal Considerations” section for further details).
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
May 2006
4
M9999-052406
(408) 955-1690
Micrel, Inc.
MIC5264
Typical Characteristics
-70
-60
-50
-40
-30
V
IN
= V
OUT
+ 1V
V
OUT
= 3.0V
-10 BYP = 0.01µF
C
OUT
= 1µF
0
0.01 0.1
1
10
100
FREQUENCY (kHz)
-20
100mA
150mA
Power Supply
Rejection Ratio
50mA
-80
-70
-60
-50
-40
-30
Power Supply
Rejection Ratio
50mA
-70
-60
-50
Power Supply
Rejection Ratio
50mA
100mA
100mA
150mA
-40
-30
150mA
1000
-20 V
IN
= V
OUT
+ 1V
V
OUT
= 3.0V
-10 BYP = 0.1µF
C
OUT
= 1µF
0
0.01 0.1
1
10
100
FREQUENCY (kHz)
1000
V
IN
= V
OUT
+ 1V
V
OUT
= 3.0V
-10 BYP = 1µF
C
OUT
= 1µF
0
10
100
1000
10000
0.01 0.1
1
10
100000
100
FREQUENCY (kHz)
-20
1000000
1000
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
Dropout Voltage
vs. Output Current
125°C
0.30
0.25
Dropout Voltage
vs. Temperature
3.20
3.15
Dropout Voltage
vs. Temperature
25°C
0.20
0.15
150mA
100mA
50mA
10mA
1mA
3.10
3.05
3.00
2.95
2.90
Iload = 100µA
V
OUT
= 3.0V
V
IN
= V
OUT
+ 1
-40°C
0.10
0.05
2.85
25 50
75 100 125 150
OUTPUT CURRENT (mA)
0.00
-40 -15 10
35 60 85 110
TEMPERATURE (°C)
2.80
-40 -15 10
35 60 85 110
TEMPERATURE (°C)
Output Voltage
vs. Input Voltage
3
2.5
2
1.5
1
0.5
0
0
1
2
3
4
INPUT VOLTAGE(V)
5
100µA Load
150µA Load
83
82
81
80
79
78
77
76
75
74
73
72 0
Ground Pin Current
vs. Output Current
78
76
74
72
70
68
-40
Ground Pin Current
vs. Temperature
V
IN
= V
OUT
+ 1V
V
OUT
= 3.0V
30
60
90
120 150
OUTPUT CURRENT (mA)
Iload = 100µA
-10
20
50
80 110
TEMPERATURE (°C)
95
90
85
80
75
70
65
60
-40
Ground Pin Current
vs. Temperature
90
80
70
60
50
40
30
20
10
0
0
Ground Pin Current
vs. Input Voltage
90
80
70
60
50
40
30
20
10
5
0
0
Ground Pin Current
vs. Input Voltage
Iload = 150mA
-10
20
50
80 110
TEMPERATURE (°C)
Iload = 100µA
V
OUT
= 3.0V
V
IN
= V
OUT
+ 1
1
2
3
4
INPUT VOLTAGE (V)
Iload = 150µA
V
OUT
= 3.0V
V
IN
= V
OUT
+ 1
1
2
3
4
INPUT VOLTAGE (V)
5
May 2006
5
M9999-052406
(408) 955-1690
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
