MIC2211
Micrel
MIC2211
Dual
µ
Cap 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)
µ
µ
• 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
1µF
Ceramic
1µF
V
I/O
V
CORE
Baseband
µProcessor
EN1
EN2
CBYP
OFF ON
0.01µF
GND
MIC2211 Typical Cell Phone Application
Micro
LeadFrame and MLF are trademarks of Amkor Technology, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
August 2004
1
M9999-080204
MIC2211
Micrel
Ordering Information
Manufacturing Number
MIC2211-ADJ/ADJBML
MIC2211-1.5/1.8BML
MIC2211-1.5/2.8BML
MIC2211-1.5/3.1BML
MIC2211-1.6/2.8BML
MIC2211-1.6/2.9BML
MIC2211-1.6/3.3BML
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
MIC2211-2.5/1.8BML
MIC2211-2.5/1.9BML
MIC2211-2.5/2.8BML
MIC2211-2.5/3.0BML
MIC2211-2.5/3.3BML
MIC2211-2.8/1.5BML
MIC2211-2.8/1.8BML
MIC2211-2.8/2.5BML
MIC2211-2.8/3.0BML
MIC2211-2.8/3.3BML
MIC2211-2.85/3.3BML
MIC2211-2.85/2.85BML
MIC2211-2.9/1.5BML
MIC2211-3.0/1.6BML
MIC2211-3.0/2.8BML
MIC2211-3.0/3.0BML
MIC2211-3.0/3.3BML
MIC2211-3.3/2.8BML
MIC2211-3.3/3.3BML
MIC2211-1.5/3.1BML
MIC2211-3.6/3.6BML
Part Number
Standard
MIC2211-AA BML
MIC2211-FGBML
MIC2211-FMBML
MIC2211-FQBML
MIC2211-WMBML
MIC2211-WOBML
MIC2211-WSBML
MIC2211-GMBML
MIC2211-GOBML
MIC2211-GPBML
MIC2211-GSBML
MIC2211-YMBML
MIC2211-JGBML
MIC2211-JYBML
MIC2211-JMBML
MIC2211-JPBML
MIC2211-JSBML
MIC2211-MFBML
MIC2211-MGBML
MIC2211-MJBML
MIC2211-MPBML
MIC2211-MSBML
MIC2211-NSBML
MIC2211-NNBML
MIC2211-OFBML
MIC2211-PWBML
MIC2211-PMBML
MIC2211-PPBML
MIC2211-PSBML
MIC2211-SMBML
MIC2211-SSBML
MIC2211-FQBML
MIC2211-WBML
Pb-Free
Contact Micrel
Contact Micrel
MIC2211-FMYML
Contact Micrel
Contact Micrel
Contact Micrel
MIC2211-WSYML
MIC2211-GMYML
MIC2211-GOYML
MIC2211-GPYML
MIC2211-GSYML
Contact Micrel
Contact Micrel
MIC2211-JYYML
MIC2211-JMYML
MIC2211-JPYML
MIC2211-JSYML
Contact Micrel
Contact Micrel
Contact Micrel
Contact Micrel
MIC2211-MSYML
Contact Micrel
Contact Micrel
Contact Micrel
Contact Micrel
MIC2211-PMYML
MIC2211-PPYML
MIC2211-PSYML
Contact Micrel
Contact Micrel
Contact Micrel
Contact Micrel
Voltage*
ADJ/ADJ
1.5V/1.8V
1.5V/2.8V
1.5V/3.1V
1.6V/2.8V
1.6V/2.9V
1.6V/3.3V
1.8V/2.9V
1.8V/3.0V
1.8V/3.3V
1.9V/2.8V
2.5V/1.8V
2.5V/1.9V
2.5V/2.8V
2.5V/3.0V
2.5V/3.3V
2.8V/1.5V
2.8V/1.8V
2.8V/2.5V
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
Package
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
10-Pin 3×3 MLF™
1.8V/2.8V –40°C to +125°C
2.8V/3.0V –40°C to +125°C
2.8V/3.3V –40°C to +125°C
2.85V/3.3V –40°C to +125°C
2.85V/2.85V –40°C to +125°C
2.9V/1.5V
3.0V/1.6V
3.0V/2.8V
3.0V/3.0V
3.0V/3.3V
3.3V/2.8V
3.3V/3.3V
1.5V/3.1V
3.6V/3.6V
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C 10-Pin 3×3 MLF™
–40°C to +125°C 10-Pin 3×3 MLF™
–40°C to +125°C 10-Pin 3×3 MLF™
–40°C to +125°C 10-Pin 3×3 MLF™
–40°C to +125°C
10-Pin 3×3 MLF™
–40°C to +125°C 10-Pin 3×3 MLF™
–40°C to +125°C 10-Pin 3×3 MLF™
*For other output voltage options, contact Micrel marketing.
Pin Configuration
VIN
1
EN1
2
EN2
3
BYP
4
NC
5
10
VOUT1
9
VOUT2
8
NC
7
NC
6
GND
10-Pin 3mm
×
3mm MLF™ (ML)
(Top View)
M9999-090204
2
August 2004
MIC2211
Voltage
Adj.
1.5
1.6
1.8
1.85
1.9
2.0
2.1
2.5
2.6
2.7
2.8
2.850
2.9
3.0
3.1
Code
A
F
W
G
D
Y
H
E
J
K
L
M
N
O
P
Q
Micrel
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.
August 2004
3
M9999-080204
MIC2211
Micrel
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
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)
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
Ground Pin Current in Shutdown
Ripple Rejection
V
EN
≤
0.4V
f = 1kHz; C
OUT
= 1.0µF ceramic; C
BYP
= 10nF
f = 20kHz; C
OUT
= 1.0µF ceramic; C
BYP
= 10nF
Current Limit
V
OUT
= 0V (Regulator 1)
V
OUT
= 0V (Regulator 2)
Output Voltage Noise
Enable Input
Enable Input Voltage
Logic Low (Regulator Shutdown)
Logic High (Regulator Enabled)
Enable Input Current
V
IL
< 0.6V (Regulator Shutdown)
V
IH
> 1.8V (Regulator Enabled)
Notes:
1. Exceeding maximum rating may damage the device.
2. The device is not guaranteed to work 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.
4. Specification for packaged product only.
5. Minimum input for line regulation test is set to V
OUT
+ 1V relative to the highest output voltage.
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
operating voltage is 2.25V.
Conditions
Variation from nominal V
OUT
Min
–1.0
–2.0
Typ
Max
+1.0
+2.0
Units
%
%
ppm/C
40
–0.3
–0.6
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
460
700
190
250
340
420
65
80
%/V
%
%
mV
mV
mV
µA
µA
µA
µA
dB
dB
mA
mA
µVrms
C
OUT
=1µF, C
BYP
=0.01µF, 10Hz to 100kHz
0.6
1.8
–1
–1
0.01
0.01
+1
+1
V
V
µA
µA
M9999-090204
4
August 2004
MIC2211
Micrel
Typical Characteristics
Spectral Noise
Density Output 1
10E-6
100µA Load
PSRR Output 1
80
C
BYP
= 100nF
PSRR Output 2
80
C
BYP
= 100nF
60
PSRR (dB)
C
BYP
= 10nF
60
PSRR (dB)
C
BYP
= 10nF
SPECTRAL NOISE DENSITY (V/root Hz)
1E-6
40
C
BYP
= 1nF
40
C
BYP
= 1nF
100E-9
20
V
IN
= V
OUT
+ 1
I
OUT
= 150mA
C
OUT
= 1µF
20
V
IN
= V
OUT
+ 1
I
OUT
= 300mA
C
OUT
= 1µF
C
OUT
= 1µF
C = 1µF
IN
C
BYP
= 0.01µF
10E-9
10
1k
100
10k 100k
FREQUENCY (Hz)
1M
0
0.01
0.1
1
10
100
FREQUENCY (kHz)
1000
0
0.01
0.1
1
10
100
FREQUENCY (kHz)
1000
SPECTRAL NOISE DENSITY (V/root Hz)
Spectral Noise
Density Output 2
10E-6
100µA Load
2.5
OUTPUT (V)
Dropout Characteristics
Output 1
3
3
2.5
100µA
150mA
OUTPUT (V)
Dropout Characteristics
Output 2
1E-6
2
1.5
1
0.5
0
0
2
1.5
1
0.5
100µA
300mA
100E-9
C
OUT
= 1µF
C = 1µF
IN
C
BYP
= 0.01µF
10E-9
10
100
1k
10k 100k
FREQUENCY (Hz)
1M
1
2
3
4
5
SUPPLY VOLTAGE (V)
0
0
1
2
3
4
5
SUPPLY VOLTAGE (V)
150
Dropout Voltage
Output 1
DROPOUT VOLTAGE (mV)
150mA load
Dropout Voltage
Output 2
350
300
250
200
150
100
50
0
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
GROUND CURRENT (µA)
300mA load
Ground Current
vs. Supply Voltage
60
50
40
30
20
10
0
0
1
2
3
4
5
SUPPLY VOLTAGE (V)
6
Output 1 and 2
with 100µA load
DROPOUT VOLTAGE (mV)
100
50
0
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
Ground Current
vs. Output 1 Current
60
60
Ground Current
vs. Output 2 Current
60
GROUND PIN CURRENT (µA)
50
40
30
20
10
GROUND CURRENT (µA)
50
40
30
20
10
0
0
50 100 150 200 250 300
OUTPUT 2 LOAD CURRENT (mA)
Ground Pin Current
1mA
100µA
0µA
GROUND CURRENT (µA)
50
40
30
20
10
0
0 20 40 60 80 100 120 140
OUTPUT 1 LOAD CURRENT (mA)
Load on both outputs
-40
-20
0
20
40
60
80
100
120
140
160
0
TEMPERATURE (°C)
August 2004
5
M9999-080204
ARM技术
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