August 2004
1
M9999-080204
MIC2211
Micrel
MIC2211
Dual
Cap LDO in 3mm
3mm MLFTM
General Description
The MIC2211 is a dual
Cap, 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 48
A 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
Cap 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 MLFTM leadless package.
Typical Application
VIN
EN1
OFF ON
OFF ON
EN2
CBYP
Baseband
Processor
VOUT1
V
I/O
VOUT2
0.01
F
1
F
Ceramic
1
F
V
CORE
GND
MIC2211-xxBML
MIC2211 Typical Cell Phone Application
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 48
A total (24
A/LDO)
High output accuracy:
+1.0% initial accuracy
+2.0% over temperature
Thermal shutdown protection
Current limit protection
Tiny 10-pin 3mm
3mm MLFTM package
Applications
Cellular phones
Wireless modems
PDAs
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
Micro
LeadFrame and MLF are trademarks of Amkor Technology, Inc.
MIC2211
Micrel
M9999-090204
2
August 2004
Ordering Information
Part Number
Manufacturing Number
Standard
Pb-Free Voltage* Temp. Range Package
MIC2211-ADJ/ADJBML MIC2211-AA BML Contact Micrel ADJ/ADJ 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.5/1.8BML
MIC2211-FGBML Contact Micrel 1.5V/1.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.5/2.8BML
MIC2211-FMBML MIC2211-FMYML 1.5V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.5/3.1BML
MIC2211-FQBML Contact Micrel 1.5V/3.1V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.6/2.8BML
MIC2211-WMBML Contact Micrel 1.6V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.6/2.9BML
MIC2211-WOBML Contact Micrel 1.6V/2.9V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.6/3.3BML
MIC2211-WSBML MIC2211-WSYML 1.6V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.8/2.8BML MIC2211-GMBML MIC2211-GMYML 1.8V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.8/2.9BML
MIC2211-GOBML MIC2211-GOYML 1.8V/2.9V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.8/3.0BML
MIC2211-GPBML MIC2211-GPYML 1.8V/3.0V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.8/3.3BML
MIC2211-GSBML MIC2211-GSYML 1.8V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.9/2.8BML
MIC2211-YMBML Contact Micrel 1.9V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.5/1.8BML MIC2211-JGBML Contact Micrel 2.5V/1.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.5/1.9BML
MIC2211-JYBML MIC2211-JYYML 2.5V/1.9V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.5/2.8BML
MIC2211-JMBML MIC2211-JMYML 2.5V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.5/3.0BML
MIC2211-JPBML MIC2211-JPYML 2.5V/3.0V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.5/3.3BML
MIC2211-JSBML MIC2211-JSYML 2.5V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.8/1.5BML MIC2211-MFBML Contact Micrel 2.8V/1.5V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.8/1.8BML
MIC2211-MGBML Contact Micrel 2.8V/1.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.8/2.5BML
MIC2211-MJBML Contact Micrel 2.8V/2.5V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.8/3.0BML
MIC2211-MPBML Contact Micrel 2.8V/3.0V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.8/3.3BML
MIC2211-MSBML MIC2211-MSYML 2.8V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.85/3.3BML
MIC2211-NSBML Contact Micrel 2.85V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.85/2.85BML
MIC2211-NNBML Contact Micrel 2.85V/2.85V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-2.9/1.5BML
MIC2211-OFBML Contact Micrel 2.9V/1.5V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.0/1.6BML
MIC2211-PWBML Contact Micrel 3.0V/1.6V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.0/2.8BML
MIC2211-PMBML MIC2211-PMYML 3.0V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.0/3.0BML
MIC2211-PPBML MIC2211-PPYML 3.0V/3.0V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.0/3.3BML
MIC2211-PSBML MIC2211-PSYML 3.0V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.3/2.8BML
MIC2211-SMBML Contact Micrel 3.3V/2.8V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.3/3.3BML MIC2211-SSBML Contact Micrel 3.3V/3.3V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-1.5/3.1BML
MIC2211-FQBML Contact Micrel 1.5V/3.1V 40
C to +125
C 10-Pin 3
3 MLFTM
MIC2211-3.6/3.6BML MIC2211-WBML Contact Micrel 3.6V/3.6V 40
C to +125
C 10-Pin 3
3 MLFTM
*For other output voltage options, contact Micrel marketing.
Pin Configuration
1
VIN
EN1
EN2
BYP
NC
10 VOUT1
VOUT2
NC
NC
GND
9
8
7
6
2
3
4
5
10-Pin 3mm
3mm MLFTM (ML)
(Top View)
August 2004
3
M9999-080204
MIC2211
Micrel
Pin Description
Pin Number
Pin Name
Pin Function
1
VIN
Supply Input: (VIN1 and VIN2 are internally tied together.)
2
EN1
Enable Input to Regulator 1: Enables regulator 1 output. Active high input.
High = on, low = off. Do not leave floating.
3
EN2
Enable Input to Regulator 2: Enables regulator 2 output. Active high input.
High = on, low = off. Do not leave floating.
4
CBYP
Reference Bypass: Connect external 0.01
F to GND to reduce output noise.
May be left open.
5, 7, 8
NC
No Connection.
6
GND
Ground: Connect externally to Exposed Pad.
9
VOUT2
Output of Regulator 2: 300mA output current
10
VOUT1
Output of Regulator 1: 150mA output current
EP
GND
Ground: Internally connected to the Exposed Pad. Connect externally to pin 6.
Voltage
Code
Adj.
A
1.5
F
1.6
W
1.8
G
1.85
D
1.9
Y
2.0
H
2.1
E
2.5
J
2.6
K
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
MIC2211
Micrel
M9999-090204
4
August 2004
Electrical Characteristics
(4)
V
IN
= V
OUT
+1.0V for higher output of the regulator pair; C
OUT
= 1.0
F, I
OUT
= 100
A; T
J
= 25
C, bold values indicate
40
C
T
J
+125
C; unless noted.
Parameter
Conditions
Min
Typ
Max
Units
Output Voltage Accuracy
Variation from nominal V
OUT
1.0
+1.0
%
2.0
+2.0
%
Output Voltage Temp. Coefficient
40
ppm/C
Line Regulation
(5)
V
IN
= V
OUT
+1V to 5.5V
0.3
0.02
0.3
%/V
0.6
0.6
Load Regulation
I
OUT
= 100
A to 150mA (Regulator 1 and 2)
0.2
1.0
%
I
OUT
= 100
A to 300mA (Regulator 2)
1.5
%
Dropout Voltage
(6)
I
OUT
= 150mA (Regulator 1 and 2)
120
190
mV
250
mV
I
OUT
= 300mA (Regulator 2)
240
340
mV
420
Ground Pin Current
I
OUT1
= I
OUT2
= 0
A
48
65
A
80
A
I
OUT1
= 150mA & I
OUT2
= 300mA
60
A
Ground Pin Current in Shutdown
V
EN
0.4V
2.0
A
Ripple Rejection
f = 1kHz; C
OUT
= 1.0
F ceramic; C
BYP
= 10nF
60
dB
f = 20kHz; C
OUT
= 1.0
F ceramic; C
BYP
= 10nF
40
dB
Current Limit
V
OUT
= 0V (Regulator 1)
150
280
460
mA
V
OUT
= 0V (Regulator 2)
300
450
700
mA
Output Voltage Noise
C
OUT
=1
F, C
BYP
=0.01
F, 10Hz to 100kHz
30
Vrms
Enable Input
Enable Input Voltage
Logic Low (Regulator Shutdown)
0.6
V
Logic High (Regulator Enabled)
1.8
V
Enable Input Current
V
IL
< 0.6V (Regulator Shutdown)
1
0.01
+1
A
V
IH
> 1.8V (Regulator Enabled)
1
0.01
+1
A
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
) /
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.
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
MLFTM-10 (
JA
) .................................................... 60
C/W
August 2004
5
M9999-080204
MIC2211
Micrel
0
0.5
1
1.5
2
2.5
3
0
1
2
3
4
5
OUTPUT (V)
SUPPLY VOLTAGE (V)
Dropout Characteristics
Output 1
150mA
100
A
0
0.5
1
1.5
2
2.5
3
0
1
2
3
4
5
OUTPUT (V)
SUPPLY VOLTAGE (V)
Dropout Characteristics
Output 2
300mA
100
A
0
10
20
30
40
50
60
0
1
2
3
4
5
6
GROUND CURRENT (
A)
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage
Output 1 and 2
with 100
A load
0
10
20
30
40
50
60
0
20 40 60 80 100 120 140
GROUND CURRENT (
A)
OUTPUT 1 LOAD CURRENT (mA)
Ground Current
vs. Output 1 Current
0
10
20
30
40
50
60
0
50
100 150 200 250 300
GROUND CURRENT (
A)
OUTPUT 2 LOAD CURRENT (mA)
Ground Current
vs. Output 2 Current
10E-9
100E-9
1E-6
10E-6
SPECTRAL NOISE DENSITY (V/root Hz)
FREQUENCY (Hz)
Spectral Noise
Density Output 1
C
OUT
= 1
F
C
IN
= 1
F
C
BYP
= 0.01
F
100
A Load
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
10E-9
100E-9
1E-6
10E-6
SPECTRAL NOISE DENSITY (V/root Hz)
FREQUENCY (Hz)
Spectral Noise
Density Output 2
100
A Load
C
OUT
= 1
F
C
IN
= 1
F
C
BYP
= 0.01
F
0
20
40
60
80
0.01
0.1
1
10
100
1000
PSRR (dB)
FREQUENCY (kHz)
PSRR Output 2
C
BYP
= 10nF
C
BYP
= 100nF
C
BYP
= 1nF
V
IN
= V
OUT
+ 1
I
OUT
= 300mA
C
OUT
= 1
F
0
20
40
60
80
0.01
0.1
1
10
100
1000
PSRR (dB)
FREQUENCY (kHz)
PSRR Output 1
C
BYP
= 10nF
C
BYP
= 100nF
C
BYP
= 1nF
V
IN
= V
OUT
+ 1
I
OUT
= 150mA
C
OUT
= 1
F
0
50
100
150
-40 -20 0 20 40 60 80 100120140
DROPOUT VOLTAGE (mV)
TEMPERATURE (
C)
Dropout Voltage
Output 1
150mA load
0
50
100
150
200
250
300
350
-40 -20 0 20 40 60 80 100120140
DROPOUT VOLTAGE (mV)
TEMPERATURE (
C)
Dropout Voltage
Output 2
300mA load
0
10
20
30
40
50
60
-40
-20
0
20
40
60
80
100
120
140
160
GROUND PIN CURRENT (
A)
TEMPERATURE (
C)
Ground Pin Current
Load on both outputs
0
A
100
A
1mA
Typical Characteristics
MIC2211
Micrel
M9999-090204
6
August 2004
0
5
10
15
20
25
30
35
0
50
100
150
GROUND CURRENT (
A)
OUTPUT 1 LOAD CURRENT (mA)
Ground Current
vs. Output Current
LDO1 Only
LDO2 Disabled (V
EN2
= LOW)
LDO1
0
5
10
15
20
25
30
35
0
50
100 150 200 250 300
GROUND CURRENT (
A)
OUTPUT 2 LOAD CURRENT (mA)
Ground Current
vs. Output Current
LDO2 Only
LDO1 Disabled (V
EN1
= LOW)
LDO2
0
10
20
30
40
50
60
0
50
100
150
GROUND CURRENT (
A)
OUTPUT 1 LOAD CURRENT (mA)
Ground Current
vs. Output Current
Both LDOs Active
LDO2 = 300mA
Output Current LDO1
Varied from 0 to Full Load
Both Enabled
0
10
20
30
40
50
60
0
50
100 150 200 250 300
GROUND CURRENT (
A)
OUTPUT 2 LOAD CURRENT (mA)
Ground Current
vs. Output Current
Both LDOs Active
LDO1 = 150mA
Output Current LDO2
Varied from 0 to Full Load
Both Enabled
Typical Characteristics (cont.)
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2.25 2.75 3.25 3.75 4.25 4.75 5.25
ENABLE THRESHOLD (V)
SUPPLY VOLTAGE (V)
Enable Voltage Threshold
vs. Supply Voltage
2.65
2.70
2.75
2.80
2.85
2.90
2.95
-40 -20 0 20 40 60 80 100120140
OUTPUT VOLTAGE (V)
TEMPERATURE (
C)
Output Voltage 2
vs. Temperature
100
A load
2.85
2.90
2.95
3.00
3.05
3.10
3.15
-40 -20 0 20 40 60 80 100120140
OUTPUT VOLTAGE (V)
TEMPERATURE (
C)
Output Voltage 1
vs. Temperature
100
A load
2.820
2.825
2.830
2.835
2.840
2.845
2.850
2.855
2.860
2.865
2.870
0
50
100 150 200 250 300
OUTPUT VOLTAGE (V)
OUTPUT 2 LOAD CURRENT (mA)
Output Voltage
vs. Load Current
2.580
2.585
2.590
2.595
2.600
2.605
2.610
0
25
50
75
100 125 150
OUTPUT VOLTAGE (V)
OUTPUT 1 LOAD CURRENT (mA)
Output Voltage
vs. Load Current
August 2004
7
M9999-080204
MIC2211
Micrel
Enable Characteristics
Time (100
s/div)
VEN
(2V/div)
V
OUT1
(2V/div)
V
OUT2
(1V/div)
C
IN
= 1
F
C
OUT
= 1
F Ceramic
C
BYP
= 0.01
F
V
IN
= 5V
Load Transient Response (LDO 1)
Time (4
s/div)
IOUT1
(100mA/div)
V
OUT1
(50mV/div)
V
OUT2
(50mV/div)
C
IN
= 1
F
C
OUT
= 1
F
C
BYP
= 0.01
F
V
IN
= V
OUT
+1V
150mA
100
A
Load Transient Response (LDO 2)
Time (4
s/div)
IOUT2
(200mA/div)
V
OUT1
(100mV/div)
V
OUT2
(100mV/div)
C
IN
= 1
F
C
OUT
= 1
F
C
BYP
= 0.01
F
V
IN
= V
OUT
+1V
300mA
100
A
Functional Characteristics
MIC2211
Micrel
M9999-090204
8
August 2004
Functional Diagram
OUT1
OUT2
GND
EN2
CBYP
EN1
VIN
LDO1
LDO2
Reference
MIC2211 Fixed Voltage Block Diagram
Functional Description
The MIC2211 is a high performance, low quiescent current
power management IC consisting of two
Cap low dropout
regulators. The first regulator is capable of sourcing 150mA
at output voltages from 1.25V to 5V. The second regulator is
capable of sourcing 300mA of current at output voltages from
1.25V to 5V.
Enable 1 and 2
The enable inputs allow for logic control of both output
voltages with individual enable inputs. The enable input is
active high, requiring 1.8V for guaranteed operation. The
enable input is CMOS logic and cannot by left floating.
Input Capacitor
Good bypassing is recommended from input to ground to
help improve AC performance. A 1
F capacitor or greater
located close to the IC is recommended.
Bypass Capacitor
The internal reference voltage of the MIC2211 can be by-
passed with a capacitor to ground to reduce output noise and
increase power supply rejection (PSRR). A quick-start fea-
ture allows for quick turn-on of the output voltage regardless
of the size of the capacitor. The recommended nominal
bypass capacitor is 0.01
F, but it can be increased without
limit.
Output Capacitor
Each regulator output requires a 1
F ceramic output capaci-
tor for stability. The output capacitor value can be increased
to improve transient response, but performance has been
optimized for a 1
F ceramic type output capacitor.
X7R/X5R dielectric-type ceramic capacitors are recom-
mended because of their temperature performance. X7R-
type capacitors change capacitance by 15% over their oper-
ating 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 capaci-
tor with Y5V dielectric, the value must be much higher than an
X7R ceramic capacitor to ensure the same minimum capaci-
tance over the equivalent operating temperature range.
August 2004
9
M9999-080204
MIC2211
Micrel
Package Information
0.20 dia
0.48 typ.
3.00 BSC.
1.50 BSC.
PIN 1 ID
0.85
3.00 BSC.
TOP
BOTTOM
ODD TERMINAL SIDE
EVEN TERMINAL SIDE
TERMINAL TIP
TERMINAL TIP
1.50 BSC.
1
2
3
1
2
3
--0.05
+0.15
0.01
0.50 BSC.
0.50 BSC.
0.50 BSC.
--0.01
+0.04
0.23
--0.05
+0.07
0.23
--0.05
+0.07
0.01
--0.01
+0.04
0.40
--0.05
+0.15
1.60
--0.15
+0.15
0.80
--0.15
+0.15
2.30
--0.15
+0.15
1.15
--0.15
+0.15
SEATING PLANE
10-Lead MLFTM (ML)
MICREL, INC.
1849 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 datasheet 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 at Purchaser's own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
2004 Micrel, Incorporated.
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