Micrel MIC2211 DATA SHEET

MIC2211 Micrel

查询MIC2211供应商

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 [phone] • fax + 1 [phone] • 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

MIC2211 Micrel

Absolute Maximum Rating

(1)

Supply Input Voltage (VIN) .................................... 0V to 7V

Enable Input Voltage (VEN) ................................... 0V to 7V

Power Dissipation (PD) ........................ Internally Limited

(3)

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

Storage Temperature (TS) ......................... –65°C to 150°C

Operating Ratings

Supply Input Voltage (VIN) ............................ 2.25V to 5.5V

Enable Input Voltage (VEN) .................................. 0V to Vin

Junction Temperature (TJ) ....................... –40°C to +125°C

Package Thermal Resistance

MLF™-10 (θJA)....................................................60°C/W

(2)

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

Electrical Characteristics

VIN = V
–40°C ≤ TJ ≤ +125°C; unless noted.

Parameter Conditions Min Typ Max Units

Output Voltage Accuracy Variation from nominal V

Output Voltage Temp. Coefficient 40 ppm/C
Line Regulation

Load Regulation I

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

OUT

(5)

(4)

VIN = V

= 1.0µF, I

OUT

OUT

+1V to 5.5V –0.3 0.02 0.3 %/V

OUT

= 100µA; TJ = 25°C, bold values indicate

OUT

–1.0 +1.0 %

–2.0 +2.0 %

–0.6 0.6

= 100µA to 150mA (Regulator 1 and 2) 0.2 1.0 %

OUT

I

= 100µA to 300mA (Regulator 2) 1.5 %

OUT

Dropout Voltage

(6)

I

= 150mA (Regulator 1 and 2) 120 190 mV

OUT

250 mV

I

= 300mA (Regulator 2) 240 340 mV

Ground Pin Current I

OUT

OUT1

I

OUT1

= I

= 0µA4865µA

OUT2

= 150mA & I

= 300mA 60 µA

OUT2

420

80 µA

Ground Pin Current in Shutdown VEN ≤ 0.4V 2.0 µA
Ripple Rejection f = 1kHz; C

f = 20kHz; C

Current Limit V

Output Voltage Noise C

= 0V (Regulator 1) 150 280 460 mA

OUT

V

= 0V (Regulator 2) 300 450 700 mA

OUT

=1µF, C

OUT

= 1.0µF ceramic; C

OUT

= 1.0µF ceramic; C

OUT

=0.01µF, 10Hz to 100kHz 30 µVrms

BYP

= 10nF 60 dB

BYP

= 10nF 40 dB

BYP

Enable Input

Enable Input Voltage Logic Low (Regulator Shutdown) 0.6 V

Logic High (Regulator Enabled) 1.8 V

Enable Input Current VIL < 0.6V (Regulator Shutdown) –1 0.01 +1 µA

V

> 1.8V (Regulator Enabled) –1 0.01 +1 µA

IH

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 TA (ambient temperature) is (P
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

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 differen­tial. 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.

+ 1V relative to the highest output voltage.

OUT

D(max)

= T

– TA) / θJA. Exceeding the maximum allowable

J(max)

M9999-090204 4 August 2004

MIC2211 Micrel

0

0.5

1

1.5

2

2.5

3

012345

OUTPUT (V)

SUPPLY VOLTAGE (V)

Dropout Characteristics

Output 2

300mA

100µA

0

10

20

30

40

50

60

0123456

GROUND CURRENT (µA)

SUPPLY VOLTAGE (V)

Ground Current

vs. Supply Voltage

Output 1 and 2
with 100µA load

0

10

20

30

40

50

60

-40

-20

0

204060

80

100

120

140

160

GROUND PIN CURRENT (µA)

TEMPERATURE (°C)

Ground Pin Current

Load on both outputs

0µA

100µA

1mA

Typical Characteristics

Spectral Noise

PSRR Output 1

80

60

40

C

= 100nF

BYP

C

= 10nF

BYP

C

= 1nF

BYP

PSRR (dB)

20

VIN =V

+ 1

OUT

= 150mA

I

OUT

C

= 1µF

OUT

0

0.01 0.1 1 10 100 1000

FREQUENCY (kHz)

PSRR Output 2

80

60

40

C

= 100nF

BYP

C

= 10nF

BYP

C

= 1nF

BYP

PSRR (dB)

20

VIN =V

+ 1

OUT

= 300mA

I

OUT

C

= 1µF

OUT

0

0.01 0.1 1 10 100 1000

FREQUENCY (kHz)

10E-6

1E-6

100E-9

10E-9

SPECTRAL NOISE DENSITY (V/root Hz)

Density Output 1

C

= 1µF

OUT

C

= 1µF

IN

C

= 0.01µF

BYP

10

100

FREQUENCY (Hz)

1k

100µA Load

10k 100k

1M

Spectral Noise

10E-6

Density Output 2

100µA Load

1E-6

100E-9

C

= 1µF

OUT

C

= 1µF

IN

C

= 0.01µF

BYP

10E-9

10

SPECTRAL NOISE DENSITY (V/root Hz)

100 1k 10k 100k 1M

FREQUENCY (Hz)

Dropout Voltage

150

100

50

DROPOUT VOLTAGE (mV)

0

-40-20 0 20 40 60 80100120140

Output 1

150mA load

TEMPERATURE (°C)

Dropout Characteristics

3

Output 1

2.5

2

100µA

1.5

1

OUTPUT (V)

150mA

0.5

0

012345

SUPPLY VOLTAGE (V)

Dropout Voltage

350
300
250
200
150
100

50

DROPOUT VOLTAGE (mV)

0

-40-20 0 20 40 60 80100120140

Output 2

300mA load

TEMPERATURE (°C)

August 2004 5 M9999-080204

Ground Current

vs. Output 1 Current

60

50

40

30

20

10

GROUND CURRENT (µA)

0

0 20 40 60 80 100 120 140

OUTPUT 1 LOAD CURRENT (mA)

Ground Current

vs. Output 2 Current

60

50

40

30

20

10

GROUND CURRENT (µA)

0

0 50 100 150 200 250 300

OUTPUT 2 LOAD CURRENT (mA)

MIC2211 Micrel

Typical Characteristics (cont.)

Ground Current

vs. Output Current

35
30
25

LDO1

20
15
10

LDO1 Only

5

GROUND CURRENT (µA)

LDO2 Disabled (V

0

0 50 100 150

OUTPUT 1 LOAD CURRENT (mA)

EN2

= LOW)

Ground Current

vs. Output Current

60

50

Both Enabled

40

30

20

Both LDOs Active
LDO1 = 150mA

10

Output Current LDO2

GROUND CURRENT (µA)

Varied from 0 to Full Load

0

0 50 100 150 200 250 300

OUTPUT 2 LOAD CURRENT (mA)

Ground Current

vs. Output Current

35
30
25

LDO2

20
15
10

LDO2 Only

5

GROUND CURRENT (µA)

LDO1 Disabled (V

0

0 50 100 150 200 250 300

OUTPUT 2 LOAD CURRENT (mA)

Output Voltage

2.610

2.605

2.600

2.595

2.590

2.585

OUTPUT VOLTAGE (V)

2.580

vs. Load Current

0 25 50 75 100 125 150

OUTPUT 1 LOAD CURRENT (mA)

EN1

= LOW)

Ground Current

vs. Output Current

60

50

Both Enabled

40

30

20

Both LDOs Active
LDO2 = 300mA

10

Output Current LDO1

GROUND CURRENT (µA)

Varied from 0 to Full Load

0

0 50 100 150

OUTPUT 1 LOAD CURRENT (mA)

Output Voltage

2.870

2.865

2.860

2.855

2.850

2.845

2.840

2.835

2.830

OUTPUT VOLTAGE (V)

2.825

2.820

vs. Load Current

0 50 100 150 200 250 300

OUTPUT 2 LOAD CURRENT (mA)

Output Voltage 1

3.15

3.10

3.05

3.00

2.95

2.90

OUTPUT VOLTAGE (V)

2.85

vs. Temperature

100µA load

-40-20 0 20 40 60 80100120140

TEMPERATURE (°C)

Output Voltage 2

2.95

2.90

2.85

2.80

2.75

2.70

OUTPUT VOLTAGE (V)

2.65

vs. Temperature

100µA load

-40-20 0 20 40 60 80100120140

TEMPERATURE (°C)

Enable Voltage Threshold

vs. Supply Voltage

1.60

1.40

1.20

1.00

0.80

0.60

0.40

0.20

ENABLE THRESHOLD (V)

0.00

2.25 2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

M9999-090204 6 August 2004

MIC2211 Micrel

Functional Characteristics

VEN

(2V/div)

VOUT1

(2V/div)

VOUT2

(1V/div)

Enable Characteristics

CIN = 1µF

= 1µF Ceramic

C

OUT

= 0.01µF

C

BYP

= 5V

V

IN

Time (100µs/div)

IOUT2

(200mA/div)

IOUT1

(100mA/div)

VOUT1

(50mV/div)

VOUT2

(50mV/div)

Load Transient Response (LDO 2)

300mA

100µA

Load Transient Response (LDO 1)

150mA
100µA

CIN = 1µF

= 1µF

C

OUT

= 0.01µF

C

BYP

= V

+1V

V

IN

OUT

Time (4µs/div)

VOUT2

(100mV/div)

VOUT1

(100mV/div)

CIN = 1µF

= 1µF

C

OUT

= 0.01µF

C

BYP

= V

V

IN

OUT

+1V

Time (4µs/div)

August 2004 7 M9999-080204

MIC2211 Micrel

Functional Diagram

VIN

EN1

EN2

CBYP

LDO1

OUT1

OUT2

LDO2

Reference

GND

MIC2211 Fixed Voltage Block Diagram

Functional Description

The MIC2211 is a high performance, low quiescent current
power management IC consisting of two µCap 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 1µF capacitor or greater
located close to the IC is recommended.

Bypass Capacitor

The internal reference voltage of the MIC2211 can be by­passed with a capacitor to ground to reduce output noise and

increase power supply rejection (PSRR). A quick-start fea­ture allows for quick turn-on of the output voltage regardless
of the size of the capacitor. The recommended nominal
bypass capacitor is 0.01µF, but it can be increased without
limit.

Output Capacitor

Each regulator output requires a 1µF ceramic output capaci­tor for stability. The output capacitor value can be increased
to improve transient response, but performance has been
optimized for a 1µF ceramic type output capacitor.

X7R/X5R dielectric-type ceramic capacitors are recom­mended because of their temperature performance. X7R­type capacitors change capacitance by 15% over their oper­ating 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 capaci­tor with Y5V dielectric, the value must be much higher than an
X7R ceramic capacitor to ensure the same minimum capaci­tance over the equivalent operating temperature range.

M9999-090204 8 August 2004

MIC2211 Micrel

5

Package Information

+0.15

0.85

0.48 typ.

0.20 dia

—0.05

3.00 BSC.

1.50 BSC.

1
2
3

1.50 BSC.

3.00 BSC.

0.01

+0.04
—0.01

0.23

+0.07
—0.05

1.60

0.80

+0.15
—0.15

+0.15
—0.15

PIN 1 ID

1

+0.15

1.15

—0.15

2
3

2.30

+0.15
—0.1

0.50 BSC.

TOP BOTTOM

TERMINAL TIP

0.50 BSC.

TERMINAL TIP

ODD TERMINAL SIDE EVEN TERMINAL SIDE

SEATING PLANE

0.50 BSC.

10-Lead MLF™ (ML)

0.40

0.23

+0.15
—0.05

+0.07
—0.05

0.01

+0.04
—0.01

MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA

TEL + 1 [phone] FAX + 1 [phone] 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.

August 2004 9 M9999-080204