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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

I/O

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

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

Package

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

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

2.5

2.6

10-Pin 3mm

3mm MLF™ (ML) Adjustable

(Top View)

Code

2.65

2.7

2.8

2.850

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

Table 1. Voltage Codes

Pin Description

Pin Number

5, 7, 8

Pin Name

VIN

EN1

EN2

CBYP

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

October 2005

M9999-101805

MIC2211

Micrel, Inc.

Absolute Maximum Rating

(1)

Supply Input Voltage (V

) ......................................0V to 7V

Enable Input Voltage (V

) ....................................0V to 7V

Power Dissipation (P

) ..........................Internally Limited

(3)

Junction Temperature ............................... –40°C to +125°C

Storage Temperature (T

) .......................... –65°C to 150°C

Lead Temperature (soldering, 5 sec.) ........................ 260°C

Operating Ratings

(2)

Supply Input Voltage (V

) ..............................2.25V to 5.5V

Enable Input Voltage (V

) ................................... 0V to Vin

Junction Temperature (T

) ........................ –40°C to +125°C

Package Thermal Resistance

MLF™-10 (θ

) .................................................... 60°C/W

Electrical Characteristics

(4)

= V

OUT

+1.0V for higher output of the regulator pair; C

OUT

= 1.0µF, I

OUT

= 100µA; T

= 25°C,

bold

values indicate

–40°C ≤ T

≤ +125°C, unless noted.

Parameter

Conditions

Min

Typ

Output Voltage Accuracy

Output Voltage Temp.

Coefﬁcient

Line Regulation

(5)

Load Regulation

= V

OUT

+1V to 5.5V

OUT

= 100µA to 150mA (Regulator 1 and 2)

OUT

= 100µA to 300mA (Regulator 2)

–0.3

–0.6

Variation from nominal V

OUT

–1.0

–2.0

0.02

0.2

0.3

0.6

1.0

1.5

120

240

2.0

150

300

280

450

0.6

1.8

–1

0.01

460

700

190

250

340

420

Max

+1.0

+2.0

Units

ppm/C

%/V

µA

µVrms

µA

Dropout Voltage

(6)

OUT

= 150mA (Regulator 1 and 2)

OUT

= 300mA (Regulator 2)

Ground Pin Current

OUT1

= I

OUT2

= 0µA

OUT1

= 150mA & I

OUT2

= 300mA

≤ 0.4V

f = 1kHz; C

OUT

= 1.0µF ceramic; C

BYP

= 10nF

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

OUT

= 0V (Regulator 2)

OUT

=1µF, C

BYP

=0.01µF, 10Hz to 100kHz

Logic Low (Regulator Shutdown)

Logic High (Regulator Enabled)

> 1.8V (Regulator Enabled)

< 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

(ambient temperature) is (P

D(max)

= T

J(max)

– T

) /

. 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

October 2005