MIC2211
Micrel, Inc.
MIC2211
Dual
µCap
LDO in 3mm
×
3mm MLF™
General Description
The MIC2211 is a dual
µCap
low dropout regulator. The first
regulator is capable of sourcing 150mA, while the second
regulator can source up to 300mA.
Ideal for battery operated applications, the MIC2211 offers 1%
accuracy, extremely low dropout voltage (80mV @ 100mA),
and extremely low ground current (only 48µA total). Equipped
with TTL logic compatible enable pins, the MIC2211 can be
put into a zero-off-mode current state, drawing no current
when disabled. Separate enable pins allow individual control
of each output voltage.
The MIC2211 is a
µCap
design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2211 is available in fixed output voltages in the
10-pin 3mm
×
3mm MLF™ leadless package.
Features
• Input voltage range: 2.25V to 5.5V
• Stable with ceramic output capacitor
• 2 LDO outputs:
• Output 1 - 150mA output current
• Output 2 - 300mA output current
• Low dropout voltage of 80mV @ 100mA
•
Ultra-low quiescent current of 48µA total (24µA/LDO)
• High output accuracy:
• +1.0% initial accuracy
• +2.0% over temperature
• Thermal shutdown protection
• Current limit protection
•
Tiny 10-pin 3mm
×
3mm MLF™ package
Applications
• Cellular phones
• Wireless modems
• PDAs
Typical Application
MIC2211-xxBML
VIN
OFF ON
VOUT1
VOUT2
1 F
Ceramic
1 F
V
I/O
V
CORE
Baseband
Processor
EN1
EN2
CBYP
OFF ON
0.01 F
GND
MIC2211 Typical Cell Phone Application
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
October 2005
1
M9999-101805
MIC2211
Micrel, Inc.
Part Number
Full
Manufacturing
MIC2211-FGBML
MIC2211-FMBML
MIC2211-FNBML
MIC2211-FOBML
MIC2211-FQBML
MIC2211-WMBML
MIC2211-WOBML
MIC2211-WSBML
MIC2211-GJBML
MIC2211-GKBML
MIC2211-GMBML
MIC2211-GOBML
MIC2211-GPBML
MIC2211-GSBML
MIC2211-YMBML
MIC2211-HPBML
MIC2211-JGBML
MIC2211-JYBML
MIC2211-JMBML
MIC2211-JPBML
MIC2211-JSBML
Pb-FREE
MIC2211-FGYML
MIC2211-FMYML
MIC2211-FNYML
MIC2211-FOYML
MIC2211-FQYML
MIC2211-WMYML
MIC2211-WOYML
MIC2211-WSYML
MIC2211-GJYML
MIC2211-GKYML
MIC2211-GMYML
MIC2211-GOYML
MIC2211-GPYML
MIC2211-GSYML
MIC2211-YMYML
MIC2211-HPYML
MIC2211-JGYML
MIC2211-JYYML
MIC2211-JMYML
MIC2211-JPYML
MIC2211-JSYML
MIC2211-KGYML
MIC2211-KNYML
MIC2211-KPBML
MIC2211-LGBML
MIC2211-LPBML
MIC2211-MFBML
MIC2211-MWBML
MIC2211-MGBML
MIC2211-MJBML
MIC2211-MMBML
MIC2211-MPBML
MIC2211-MSBML
MIC2211-NNBML
MIC2211-NSBML
MIC2211-OFMBL
MIC2211-OOBML
MIC2211-PWBML
MIC2211-PLBML
MIC2211-PMBML
MIC2211-PNBML
MIC2211-PPBML
MIC2211-PSBML
MIC2211-SGBML
MIC2211-SMBML
MIC2211-SSBML
MIC2211-VVBML
MIC2211-AABML
MIC2211-KPYML
MIC2211-LGYML
MIC2211-LPYML
MIC2211-MFYML
MIC2211-MWYML
MIC2211-MGYML
MIC2211-MJYML
MIC2211-MMYML
MIC2211-MPYML
MIC2211-MSYML
MIC2211-NNYML
MIC2211-NSYML
MIC2211-OFYML
MIC2211-OOYML
MIC2211-PWYML
MIC2211-PLYML
MIC2211-PMYML
MIC2211-PNYML
MIC2211-PPYML
MIC2211-PSYML
MIC2211-SGYML
MIC2211-SMYML
MIC2211-SSYML
MIC2211-VVYML
MIC2211-AAYML
Voltage*
(Vo1/Vo2)
1.5V/1.8V
1.5V/2.8V
1.5V/2.85V
15V/2.9V
1.5V/3.1V
1.6V/2.8V
1.6V/2.9V
1.6V/3.3
1.8V/2.5V
1.8V/2.6V
1.8V/2.8V
1.8V/2.9V
1.8V/3.0V
1.8V/3.3V
1.9V/2.8V
2.0V/3.0V
2.5V/1.8V
2.5V/1.9V
2.5V/2.8V
2.5V/3.0V
2.5V/3.3V
2.6V/1.8V
2.6V/1.85V
2.6V/3.0V
2.7V/1.8V
2.7V/3.0V
2.8V/1.5V
2.8V/1.6V
2.8V/1.8V
2.8V/2.5V
2.8V/2.8V
2.8V/3.0V
2.8V/3.3V
2.85V/2.85V
2.85V/3.3V
2.9V/1.5V
2.9V/2.9V
3.0V/1.6V
3.0V/2.7V
3.0V/2.8V
3.0V/2.85V
3.0V/3.0V
3.0V/3.3V
3.3V/1.8V
3.3V/2.8V
3.3V/3.3V
3.6V/3.6V
ADJ/ADJ
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
-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
Package
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
Ordering Information
MIC2211-1.5/1.8BML
MIC2211-1.5/2.8BML
MIC2211-1.5/2.85BML
MIC2211-1.5/2.9BML
MIC2211-1.5/3.1BML
MIC2211-1.6/2.8BML
MIC2211-1.6/2.9BML
MIC2211-1.6/3.3BML
MIC2211-1.8/2.5BML
MIC2211-1.8/2.6BML
MIC2211-1.8/2.8BML
MIC2211-1.8/2.9BML
MIC2211-1.8/3.0BML
MIC2211-1.8/3.3BML
MIC2211-1.9/2.8BML
MIC2211-2.0/3.0BML
MIC2211-2.5/1.8BML
MIC2211-2.5/1.9BML
MIC2211-2.5/2.8BML
MIC2211-2.5/3.0BML
MIC2211-2.5/3.3BML
MIC2211-2.6/1.8BML
MIC2211-2.6/2.85BML
MIC2211-2.6/3.0BML
MIC2211-2.7/1.8BML
MIC2211-2.7/3.0BML
MIC2211-2.8/1.5BML
MIC2211-2.8/1.6BML
MIC2211-2.8/1.8BML
MIC2211-2.8/2.5BML
MIC2211-2.8/2.8BML
MIC2211-2.8/3.0BML
MIC2211-2.8/3.3BML
MIC2211-2.85/2.85BML
MIC2211-2.85/3.3BML
MIC2211-2.9/1.5BML
MIC2211-2.9/2.9BML
MIC2211-3.0/1.6BML
MIC2211-3.0/2.7BML
MIC2211-3.0/2.8BML
MIC2211-3.0/2.85BML
MIC2211-3.0/3.0BML
MIC2211-3.0/3.3BML
MIC2211-3.3/1.8BML
MIC2211-3.3/2.8BML
MIC2211-3.3/3.3BML
MIC2211-3.6/3.6BML
MIC2211-ADJ/ADJBML
*For other output voltage options, contact Micrel marketing.
M9999-101905
2
October 2005
MIC2211
Micrel, Inc.
Pin Configuration
VIN 1
EN1 2
EN2 3
BYP 4
NC 5
10 VOUT1
9 VOUT2
8 NC
7 NC
6 GND
VIN 1
EN1 2
EN2 3
BYP 4
ADJ1 5
10 VOUT1
9 VOUT2
8 NC
7 ADJ2
6 GND
10-Pin 3mm
×
3mm MLF™ (ML)
(Top View)
Voltage
Adj.
1.5
1.6
1.8
1.85
1.9
2.0
2.1
10-Pin 3mm
×
3mm MLF™ (ML) Adjustable
(Top View)
Code
A
F
W
G
D
Y
H
E
2.5
J
2.6
K
2.65
I
2.7
L
2.8
M
2.850
N
2.9
O
3.0
P
3.1
Q
3.2
R
3.3
S
3.4
T
3.5
U
3.6
V
Table 1. Voltage Codes
Pin Description
Pin Number
1
2
3
4
5, 7, 8
6
9
10
EP
Pin Name
VIN
EN1
EN2
CBYP
NC
GND
VOUT2
VOUT1
GND
Pin Function
Supply input: (VIN1 and VIN2 are internally tied together.)
Enable input to regulator 1: Enables regulator 1 output. Active high input.
High = on, low = off. Do not leave floating.
Enable input to regulator 2: Enables regulator 2 output. Active high input.
High = on, low = off. Do not leave floating.
Reference bypass: Connect external 0.01µF to GND to reduce output noise.
May be left open.
No connection.
Ground: Connect externally to Exposed Pad.
Output of regulator 2: 300mA output current
Output of regulator 1: 150mA output current
Ground: Internally connected to the Exposed Pad. Connect externally to pin
6.
October 2005
3
M9999-101805
MIC2211
Micrel, Inc.
Absolute Maximum Rating
(1)
Supply Input Voltage (V
IN
) ......................................0V to 7V
Enable Input Voltage (V
EN
) ....................................0V to 7V
Power Dissipation (P
D
) ..........................Internally Limited
(3)
Junction Temperature ............................... –40°C to +125°C
Storage Temperature (T
S
) .......................... –65°C to 150°C
Lead Temperature (soldering, 5 sec.) ........................ 260°C
Operating Ratings
(2)
Supply Input Voltage (V
IN
) ..............................2.25V to 5.5V
Enable Input Voltage (V
EN
) ................................... 0V to Vin
Junction Temperature (T
J
) ........................ –40°C to +125°C
Package Thermal Resistance
MLF™-10 (θ
JA
) .................................................... 60°C/W
Electrical Characteristics
(4)
V
IN
= V
OUT
+1.0V for higher output of the regulator pair; C
OUT
= 1.0µF, I
OUT
= 100µA; T
J
= 25°C,
bold
values indicate
–40°C ≤ T
J
≤ +125°C, unless noted.
Parameter
Conditions
Min
Typ
Output Voltage Accuracy
Output Voltage Temp.
Coefficient
Line Regulation
(5)
Load Regulation
V
IN
= V
OUT
+1V to 5.5V
I
OUT
= 100µA to 150mA (Regulator 1 and 2)
I
OUT
= 100µA to 300mA (Regulator 2)
–0.3
–0.6
Variation from nominal V
OUT
–1.0
–2.0
40
0.02
0.2
0.3
0.6
1.0
1.5
120
240
48
60
2.0
60
40
150
300
280
450
30
0.6
1.8
–1
–1
0.01
0.01
+1
+1
460
700
190
250
340
420
65
80
Max
+1.0
+2.0
Units
%
%
ppm/C
%/V
%
%
mV
mV
mV
µA
µA
µA
µA
dB
dB
mA
mA
µVrms
V
V
µA
µA
Dropout Voltage
(6)
I
OUT
= 150mA (Regulator 1 and 2)
I
OUT
= 300mA (Regulator 2)
Ground Pin Current
I
OUT1
= I
OUT2
= 0µA
I
OUT1
= 150mA & I
OUT2
= 300mA
V
EN
≤ 0.4V
f = 1kHz; C
OUT
= 1.0µF ceramic; C
BYP
= 10nF
V
OUT
= 0V (Regulator 1)
Ground Pin Current in Shutdown
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Input
Enable Input Voltage
Enable Input Current
Notes:
f = 20kHz; C
OUT
= 1.0µF ceramic; C
BYP
= 10nF
V
OUT
= 0V (Regulator 2)
C
OUT
=1µF, C
BYP
=0.01µF, 10Hz to 100kHz
Logic Low (Regulator Shutdown)
Logic High (Regulator Enabled)
V
IH
> 1.8V (Regulator Enabled)
V
IL
< 0.6V (Regulator Shutdown)
1. Exceeding the absoulte maximum ratings may damage the device.
2. The device is not guaranteed to work outside its operating ratings.
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.
4. 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 value measured at 1V differen-
tial. For outputs below 2.25V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.25V. Minimum input operat-
ing voltage is 2.25V.
5. Minimum input for line regulation test is set to V
OUT
+ 1V relative to the highest output voltage.
M9999-101905
4
October 2005
MIC2211
Micrel, Inc.
Typical Characteristics
80
60
PSRR (dB)
40
20
P SR ROutp ut 1
C
B YP
= 100nF
C
B YP
= 10nF
80
60
PSRR (dB)
40
20
P SR ROutp ut 2
C
B YP
= 100nF
C
B YP
= 10nF
S pec tral Nois e
Dens ity Output 1
10E-6
SPECTRAL NOISE DENSITY (V/root Hz)
100
µ
A Load
C
B YP
= 1nF
C
B YP
= 1nF
1E-6
0
0.01
V
IN
= V
OUT
+ 1
I
OUT
= 150mA
C
OUT
= 1µF
0.1
1
10
100
FREQUENCY (kHz)
1000
0
0.01
V
IN
= V
OUT
+ 1
I
OUT
= 300mA
C
OUT
= 1µF
100E-9
C
OUT
= 1µF
C
IN
= 1µF
C
B Y P
= 0.01µF
0.1
1
10
100
FREQUENCY (kHz)
1000
10E-9
10
1k
100
10k 100k
FREQUENCY (Hz)
1M
S pec tral Nois e
Dens ity Output 2
10E-6
SPECTRAL NOISE DENSITY (V/root Hz)
Dropout C harac teris tic s
Output 1
3
2.5
OUTPUT (V)
OUTPUT (V)
3
2.5
Dropout C harac teris tic s
Output 2
100µA Load
1E-6
2
1.5
1
0.5
100µA
150mA
2
1.5
1
0.5
100µA
300mA
100E-9
C
OUT
= 1µF
C = 1µF
IN
10E-9
10
C
B Y P
= 0.01µF
10k
100k
1k
100
FREQUENCY (Hz)
1M
0
0
1
2
3
4
SUPPLY VOLTAGE (V)
5
0
0
1
2
3
4
SUPPLY VOLTAGE (V)
5
150
DROPOUT VOLTAGE (mV)
Dropout V oltage
Output 1
150mA load
DROPOUT VOLTAGE (mV)
350
300
250
200
150
100
50
Dropout V oltage
Output 2
300mA load
GROUND CURRENT (µA)
G round C urrent
vs . S uppl
y
V oltage
60
50
40
30
20
10
0
0
1
2
3
4
SUPPLY VOLTAGE (V)
5
6
Output 1 and 2
with 100µA load
100
50
0
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
0
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
G round C urrent
vs . Output 1 C urrent
60
50
GROUND CURRENT (µA)
GROUND CURRENT (µA)
40
30
20
10
0
0 20 40 60 80 100 120 140
OUTPUT 1 LOAD CURRENT (mA)
60
50
40
30
20
10
0
G round C urrent
vs . Output 2 C urrent
GROUND PIN CURRENT (µA)
60
50
40
30
20
10
G round P in C urrent
1mA
0µA
100
µ
A
0
50 100 150 200 250 300
OUTPUT 2 LOAD CURRENT (mA)
October 2005
5
-20
0
20
40
60
80
100
120
140
160
TEMPERATURE (°C)
-40
0
Load on both outputs
M9999-101805
单片机
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