MIC2211 Micrel
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MIC2211
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.
µµ
Dual
µCap LDO in 3mm
µµ
××
× 3mm MLF™
××
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
µµ
µA total (24
µµ
• 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
µµ
µA/LDO)
µµ
T ypical Application
MIC2211-xxBML
VIN
OFF ON
OFF ON
0.01µF
EN1
EN2
CBYP
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
VOUT1 V
VOUT2
GND
1µF
Ceramic
1µF
I/O
V
CORE
Baseband
µProcessor
MIC2211 Micrel
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 MLF™
MIC2211-1.5/1.8BML MIC2211-FGBML Contact Micrel 1.5V/1.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.5/2.8BML MIC2211-FMBML MIC2211-FMYML 1.5V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.5/3.1BML MIC2211-FQBML Contact Micrel 1.5V/3.1V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.6/2.8BML MIC2211-WMBML Contact Micrel 1.6V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.6/2.9BML MIC2211-WOBML Contact Micrel 1.6V/2.9V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.6/3.3BML MIC2211-WSBML MIC2211-WSYML 1.6V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.8/2.8BML MIC2211-GMBML MIC2211-GMYML 1.8V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.8/2.9BML MIC2211-GOBML MIC2211-GOYML 1.8V/2.9V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.8/3.0BML MIC2211-GPBML MIC2211-GPYML 1.8V/3.0V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.8/3.3BML MIC2211-GSBML MIC2211-GSYML 1.8V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.9/2.8BML MIC2211-YMBML Contact Micrel 1.9V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.5/1.8BML MIC2211-JGBML Contact Micrel 2.5V/1.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.5/1.9BML MIC2211-JYBML MIC2211-JYYML 2.5V/1.9V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.5/2.8BML MIC2211-JMBML MIC2211-JMYML 2.5V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.5/3.0BML MIC2211-JPBML MIC2211-JPYML 2.5V/3.0V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.5/3.3BML MIC2211-JSBML MIC2211-JSYML 2.5V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.8/1.5BML MIC2211-MFBML Contact Micrel 2.8V/1.5V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.8/1.8BML MIC2211-MGBML Contact Micrel 2.8V/1.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.8/2.5BML MIC2211-MJBML Contact Micrel 2.8V/2.5V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.8/3.0BML MIC2211-MPBML Contact Micrel 2.8V/3.0V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.8/3.3BML MIC2211-MSBML MIC2211-MSYML 2.8V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.85/3.3BML MIC2211-NSBML Contact Micrel 2.85V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.85/2.85BML MIC2211-NNBML Contact Micrel 2.85V/2.85V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-2.9/1.5BML MIC2211-OFBML Contact Micrel 2.9V/1.5V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.0/1.6BML MIC2211-PWBML Contact Micrel 3.0V/1.6V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.0/2.8BML MIC2211-PMBML MIC2211-PMYML 3.0V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.0/3.0BML MIC2211-PPBML MIC2211-PPYML 3.0V/3.0V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.0/3.3BML MIC2211-PSBML MIC2211-PSYML 3.0V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.3/2.8BML MIC2211-SMBML Contact Micrel 3.3V/2.8V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.3/3.3BML MIC2211-SSBML Contact Micrel 3.3V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-1.5/3.1BML MIC2211-FQBML Contact Micrel 1.5V/3.1V –40°C to +125°C 10-Pin 3×3 MLF™
MIC2211-3.6/3.6BML MIC2211-WBML Contact Micrel 3.6V/3.6V –40°C to +125°C 10-Pin 3×3 MLF™
*For other output voltage options, contact Micrel marketing.
Pin Configuration
1VIN
EN1
2
EN2
3
BYP
4
NC
5
10-Pin 3mm
××
× 3mm MLF™ (ML)
××
(Top View)
M9999-090204 2 August 2004
10 VOUT1
VOUT2
9
NC
8
NC
7
GND
6
MIC2211 Micrel
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
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.
3 EN2 Enable Input to Regulator 2: Enables regulator 2 output. Active high input.
4 CBYP Reference Bypass: Connect external 0.01µF to GND to reduce output noise.
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.
High = on, low = off. Do not leave floating.
High = on, low = off. Do not leave floating.
May be left open.
August 2004 3 M9999-080204