MIC2212-3.0/3.3BML [MICROCHIP]
IC,VOLT REGULATOR,FIXED,+3V,+3.3V,CMOS,LLCC,10PIN,PLASTIC;
| 型号： | MIC2212-3.0/3.3BML |
| 厂家： | 
MICROCHIP |
| 描述： | IC,VOLT REGULATOR,FIXED,+3V,+3.3V,CMOS,LLCC,10PIN,PLASTIC 光电二极管 |
| 文件： | 总10页 (文件大小：853K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC2212
Dual µCap LDO and Power-On Reset
General Description
Features
The MIC2212 is a dual µCap low dropout regulator with
power-onresetcircuit.Thefirstregulatoriscapableofsourcing
150mA, while the second regulator can source up to 300mA
and includes a power-on reset function.
• 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
• Power-on reset function with adjustable delay time
• Low dropout voltage of 80mV @ 100mA
• Ultra-low quiescent current of 48µA
• High output accuracy:
• +1.0% initial accuracy
• +2.0% over temperature
• Thermal shutdown protection
• Current limit protection
• Tiny 10-pin 3mm × 3mm MLF™ package
Idealforbatteryoperatedapplications,theMIC2212offers1%
accuracy, extremely low dropout voltage (80mV @ 100mA),
and extremely low ground current, only 48µAtotal. Equipped
with TTL-logic-compatible enable pins, the MIC2212 can be
put into a zero-off-mode current state, drawing no current
when disabled.
The MIC2212 is a µCap design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2212 is available in fixed output voltages in the
10-pin 3mm × 3mm MLF™ leadless package.
Applications
• Cellular/PCS phones
• Wireless modems
• PDAs
Typical Application
MIC2212-xxBML
VIN
VOUT1
VI/O
VCORE
EN1
EN2
CBYP
SET
VOUT2
POR
Li-Ion
Battery
/RST
Baseband
µProcessor
COUT = 1µF
Ceramic
GND
Sets delay for POR
MIC2212 Typical Cell Phone Application
MicroLeadFrame and MLF are trademarks of Amkor Technology.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
M9999-022106
February 2006
1
MIC2212
Micrel, Inc.
Ordering Information
Part Number
Voltage*
(Vo1/Vo2)
Junction Temp.
Range
Package
Full
Manufacturing
Pb-Free
MIC2212-1.6/2.8BML
MIC2212-1.6/3.3BML
MIC2212-1.8/2.6BML
MIC2212-1.8/2.7BML
MIC2212-1.8/2.8BML
MIC2212-1.8/3.3BML
MIC2212-WMBML
MIC2212-WSBML
MIC2212-GKBML
MIC2212-GLBML
MIC2212-GMBML
MIC2212-GSBML
MIC2212-WMYML
MIC2212-WSYML
MIC2212-GKYML
MIC2212-GLYML
MIC2212-GMYML
MIC2212-GSYML
MIC2212-DNYML
MIC2212-DOYML
MIC2212-JSYML
MIC2212-KMYML
MIC2212-KNYML
MIC2212-LMYML
MIC2212-LOYML
MIC2212-LPYML
MIC2212-MKYML
MIC2212-MMYML
MIC2212-MPYML
MIC2212-NNYML
MIC2212-PMYML
MIC2212-PNYML
MIC2212-PPYML
MIC2212-PSYML
MIC2212-SGYML
MIC2212-SJYML
MIC2212-SMYML
MIC2212-SVYML
1.6V/2.8V
1.6V/3.3V
1.8V/2.6V
1.8V/2.7V
1.8V/2.8V
1.8V/3.3V
1.85V/2.85V
1.85V/2.9V
2.5V/3.3V
2.6V/2.8V
2.6V/2.85V
2.7V2.8V
-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
-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
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
MIC2212-1.85/2.85BML MIC2212-DNBML
MIC2212-1.85/2.9BML
MIC2212-2.5/3.3BML
MIC2212-2.6/2.8BML
MIC2212-2.6/2.85BML
MIC2212-2.7/2.8BML
MIC2212-2.7/2.9BML
MIC2212-2.7/3.0BML
MIC2212-2.8/2.6BML
MIC2212-2.8/2.8BML
MIC2212-2.8/3.0BML
MIC2212-DOBML
MIC2212-JSBML
MIC2212-KMBML
MIC2212-KNBML
MIC2212-LMBML
MIC2212-LOBML
MIC2212-LPBML
MIC2212-MKBML
MIC2212-MMBML
MIC2212-MPBML
2.7V/2.9V
2.7V/3.0V
2.8V/2.6V
2.8V/2.8V
2.8V/3.0V
2.85V/2.85V
3.0V/2.8V
3.0V/2.85V
3.0V/3.0V
3.0V/3.3V
3.3V/1.8V
3.3V/2.5V
3.3V/2.8V
3.3V/3.6V
MIC2212-2.85/2.85BML MIC2212-NNBML
MIC2212-3.0/2.8BML
MIC2212-3.0/2.85BML
MIC2212-3.0/3.0BML
MIC2212-3.0/3.3BML
MIC2212-3.3/1.8BML
MIC2212-3.3/2.5BML
MIC2212-3.3/2.8BML
MIC2212-3.3/3.6BML
MIC2212-PMBML
MIC2212-PNBML
MIC2212-PPBML
MIC2212-PSBML
MIC2212-SGBML
MIC2212-SJBML
MIC2212-SMBML
MIC2212-SVBML
* For other output voltage options, contact Micrel marketing.
Voltage
Adj.
1.5
Code
Voltage
2.8
Code
M
N
A
F
2.850
2.9
1.6
W
G
D
Y
H
E
J
O
1.8
3.0
P
1.850
1.9
3.1
Q
3.2
R
2.0
3.3
S
2.1
3.4
T
2.5
3.5
U
2.6
K
L
3.6
V
2.7
Table 1. Voltage Codes
M9999-022106
2
February 2006
MIC2212
Micrel, Inc.
Pin Configuration
10 VOUT1
VIN
EN1
EN2
BYP
SET
1
2
3
4
5
9
8
7
6
VOUT2
POR
NC
GND
10-Pin 3mm × 3mm MLF™ (ML)
(Top View)
Pin Description
Pin Number
Pin Name
Pin Function
MLF-10 (3x3)
1
2
VIN
Supply Input: (VIN1 and VIN2 are internally tied together.)
EN1
Enable Input to Regulator 1: Enables regulator 1 output. Active high input.
High = on, low = off. Do not leave floating.
3
4
5
EN2
CBYP
SET
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.
Delay Set Input: Connect external capacitor to GND to set the internal delay
for the POR output. When left open, there is no delay. This pin cannot be
grounded.
6
7
8
GND
NC
Ground: Connect externally to Exposed Pad.
No Connection.
POR
Power-On Reset Output: Open-drain output. Active low indicates an output
undervoltage condition on regulator 2.
9
VOUT2
VOUT1
GND
Output of Regulator 2: 300mA output current.
Output of Regulator 1: 150mA output current.
10
EP
Ground: Internally connected to the Exposed Pad. Connect externally to pin
6 of the IC.
February 2006
3
M9999-022106
MIC2212
Micrel, Inc.
Absolute Maximum Rating(1)
Operating Ratings(2)
Supply Input Voltage (V )......................................0V to 7V
Supply Input Voltage (V )..............................2.25V to 5.5V
IN
IN
Enable Input Voltage (V ) ....................................0V to 7V
Enable Input Voltage (V ) ...................................0V to Vin
EN
EN
Power Dissipation (P )................ Internally Limited, Note 3
Junction Temperature (T )........................ –40°C to +125°C
D
J
Junction Temperature............................... –40°C to +125°C
Package Thermal Resistance
MLF™-10 (θ )....................................................60°C/W
Storage Temperature (T ) .......................... –65°C to 150°C
JA
S
Lead Temperature (soldering, 5 sec.)........................ 260°C
Electrical Characteristics(4)
VIN = VOUT +1.0V for higher output of the regulator pair; COUT = 1.0µF, IOUT = 100µA; TJ = 25°C, bold values indicate
–40°C ≤ TJ ≤ +125°C; unless noted.
Parameter
Conditions
Min
Typ
Max
Units
Output Voltage Accuracy
Variation from nominal VOUT
–1.0
–2.0
+1.0
+2.0
%
%
Output Voltage Temp.
Coefficient
Line Regulation(5)
40
0.02
0.2
ppm/C
%/V
%
VIN = VOUT +1V to 5.5V
–0.3
–0.6
0.3
0.6
Load Regulation
IOUT = 100µA to 150mA (Regulator 1 and 2)
1.0
1.5
IOUT = 100µA to 300mA (Regulator 2)
%
Dropout Voltage(6)
Ground Pin Current
IOUT = 150mA (Regulator 1 and 2)
IOUT = 300mA (Regulator 2)
IOUT1 = IOUT2 = 0µA
120
240
48
190
250
mV
mV
340
420
mV
65
80
µA
µA
IOUT1 = 150mA and IOUT2 = 300mA
VEN ≤ 0.4V
60
µA
µA
Ground Pin Current in
Shutdown
2.0
Ripple Rejection
f = 1kHz; COUT = 1.0µF ceramic; CBYP = 10nF
f = 20kHz; COUT = 1.0µF ceramic; CBYP = 10nF
VOUT = 0V (Regulator 1)
60
40
dB
dB
Current Limit
150
300
280
450
30
460
700
mA
VOUT = 0V (Regulator 2)
mA
Output Voltage Noise
Enable Input
COUT =1µF, CBYP = 0.01µF, 10Hz to 100kHz
µVrms
Enable Input Voltage
Logic Low (Regulator Shutdown)
Logic High (Regulator Enabled)
VIL < 0.6V (Regulator Shutdown)
VIH > 1.8V (Regulator Enabled)
0.6
V
1.8
–1
–1
V
Enable Input Current
0.01
0.01
+1
+1
µA
µA
POR Output
VTH
Low Threshold, % of nominal VOUT2 (Flag ON)
High Threshold, % of nominal VOUT2 (Flag OFF)
POR Output Logic Low Voltage; IL = 250µA
Flag Leakage Current, Flag OFF
90
–1
%
%
V
96
0.1
+1
VOL
0.02
0.01
IPOR
µA
M9999-022106
4
February 2006
MIC2212
Micrel, Inc.
Parameter
Conditions
Min
Typ
Max
Units
SET Input
SET Pin Current Source
SET Pin Threshold Voltage
VSET = 0V
0.75
1.25
1.25
1.75
µA
V
POR = High
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 (PD(max) = TJ(max) – TA) / θJA. 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 VOUT + 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 operat-
ing voltage is 2.25V.
February 2006
5
M9999-022106
MIC2212
Micrel, Inc.
Typical Characteristics
Spectral Noise
Density Output 1
PSRR Output 1
PSRR Output 2
80
80
60
40
20
0
10E-6
1E-6
C = 100nF
C
= 100nF
BYP
100µA Load
BYP
C
= 10nF
C
= 10nF
BYP
BYP
60
40
20
0
C
= 1nF
C
= 1nF
BYP
BYP
100E-9
COUT = 1µF
IN = 1µF
BYP = 0.01µF
V
I
= V
+ 1
V
= V
IN OUT
+ 1
IN
OUT
C
= 150mA
I
= 300mA
OUT
OUT
C
C
= 1µF
C
= 1µF
OUT
OUT
10E-9
0.01 0.1
1
10 100 1000
0.01 0.1
1
10 100 1000
10
100 1k
10k 100k 1M
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (Hz)
Dropout Characteristics
Output 1
Dropout Characteristics
Output 2
Spectral Noise
Density Output 2
3
2.5
2
3
2.5
2
10E-6
1E-6
100µA Load
100µA
100µA
150mA
300mA
1.5
1
1.5
1
100E-9
10E-9
COUT = 1µF
IN = 1µF
CBYP = 0.01µF
C
0.5
0.5
0
0
0
1
2
3
4
5
0
1
2
3
4
5
10
100 1k
10k 100k 1M
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
Ground Current
vs. Supply Voltage
Dropout Voltage
Output 2
Dropout Voltage
Output 1
60
50
40
30
20
10
0
150
100
50
350
300
250
200
150
100
50
Output 1 and 2
with 100µA load
150mA load
300mA load
0
0
0
1
2
3
4
5
6
-40-20 0 20 40 60 80 100120140
-40-20 0 20 40 60 80 100120140
SUPPLY VOLTAGE (V)
TEMPERATURE°(C)
TEMPERATURE°(C)
Ground Current
Ground Current
vs. Output 1 Current
vs. Output 2 Current
Ground Pin Current
60
60
60
50
40
30
20
10
0
1mA
100µA
50
40
30
20
10
0
50
40
30
20
10
0
0µA
Load on both outputs
0
20 40 60 80 100 120 140
0
50 100 150 200 250 300
OUTPUT 1 LOAD CURRENT (mA)
OUTPUT 2 LOAD CURRENT (mA)
TEMPERATURE°(C)
M9999-022106
6
February 2006
MIC2212
Micrel, Inc.
Typical Characteristics (cont.)
Ground Current
Ground Current
Ground Current
vs. Output Current
vs. Output Current
vs. Output Current
35
60
50
40
30
20
35
30
25
20
15
10
5
30
Both Enabled
25
LDO1
LDO2
20
15
10
Both LDOs Active
LDO2 = 300mA
10 Output Current LDO1
Varied from 0 to Full Load
LDO2 Only
LDO1 Disabled (VEN1 = LOW)
LDO1 Only
LDO2 Disabled (VEN2 = LOW)
5
0
0
0
0
50
100
150
0
50
100
150
0
50 100 150 200 250 300
OUTPUT 1 LOAD CURRENT (mA)
OUTPUT 1 LOAD CURRENT (mA)
OUTPUT 2 LOAD CURRENT (mA)
Output Voltage
vs. Load Current
Output Voltage
vs. Load Current
Ground Current
vs. Output Current
2.610
2.605
2.600
2.595
2.590
2.585
2.580
2.870
2.865
2.860
2.855
2.850
2.845
2.840
2.835
2.830
2.825
2.820
60
50
40
30
20
10
0
Both Enabled
Both LDOs Active
LDO1 = 150mA
Output Current LDO2
Varied from 0 to Full Load
0
50 100 150 200 250 300
0
25 50 75 100 125 150
0
50 100 150 200 250 300
OUTPUT 2 LOAD CURRENT (mA)
OUTPUT 1 LOAD CURRENT (mA)
OUTPUT 2 LOAD CURRENT (mA)
Output Voltage 1
vs. Temperature
Output Voltage 2
vs. Temperature
Enable Voltage Threshold
vs. Supply Voltage
3.15
3.10
3.05
3.00
2.95
2.90
2.85
2.95
2.90
2.85
2.80
2.75
2.70
2.65
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
100µA load
100µA load
-40 -20 0 20 40 60 80 100120140
-40-20 0 20 40 60 80 100120140
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
TEMPERATURE°(C)
TEMPERATURE°(C)
POR Delay
10M
1M
100k
10k
1k
100
10
C
= 1µF
IN
COUT = 1µF
I
LOAD = 100µA
1
100
10k 100k 1M
1k
1
10
POR SETTING CAP (pF)
February 2006
7
M9999-022106
MIC2212
Micrel, Inc.
Functional Characteristics
Enable Characteristics
Power-On Reset Characteristics
CIN = 1µF
COUT = 1µF Ceramic
CSET = 0.01µF
CBYP = 0.01µF
VIN = 5V
CIN = 1µF
COUT = 1µF Ceramic
CBYP = 0.01µF
VIN = 3.8V
Time (100µs/div)
Time (2ms/div)
Load Transient Response (LDO 1)
Load Transient Response (LDO 2)
300mA
150mA
100µA
100µA
CIN = 1µF
CIN = 1µF
COUT = 1µF
CBYP = 0.01µF
VIN = VOUT +1V
COUT = 1µF
CBYP = 0.01µF
VIN = VOUT +1V
Time (4µs/div)
Time (4µs/div)
M9999-022106
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February 2006
MIC2212
Micrel, Inc.
Functional Diagram
VIN
OUT1
LDO1
EN1
OUT2
POR
LDO2
EN2
SET
POR & Delay
CBYP
Reference
GND
MIC2212 Fixed Voltage Block Diagram
Input Capacitor
Functional Description
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.
The MIC2212 is a high performance, low quiescent current
power management IC consisting of two µCap low dropout
regulators, a power-on reset (POR) circuit and an open-drain
driver. The first regulator is capable of sourcing 150mA at
output voltages from 1.25V to 5V. The second regulator is
capable of sourcing 300mAof current at output voltages from
1.25V to 5V. The second regulator has a POR circuit that
monitors its output voltage and indicates when the output
voltage is within 5% of nominal. The POR offers a delay
time that is externally programmable with a single capacitor
to ground.
Bypass Capacitor
The internal reference voltage of the MIC2212 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.
Enable 1 and 2
Output Capacitor
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.
Each regulator output requires a 1µF ceramic output capaci-
tor 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.
Power-On Reset (POR)
X7R/X5R dielectric-type ceramic capacitors are recom-
mendedbecauseoftheirtemperatureperformance.X7R-type
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 operat-
ing temperature ranges. To use a ceramic chip capacitor with
Y5V dielectric, the value must be much higher than a X7R
ceramic capacitor to ensure the same minimum capacitance
over the equivalent operating temperature range.
The power-on reset output is an open-drain N-Channel
device, requiring a pull-up resistor to either the input voltage
or output voltage for proper voltage levels. The POR output
has a delay time that is programmable with a capacitor from
the SET pin to ground. The delay time can be programmed
to be as long as 1 second.
The SET pin is a current source output that charges a
capacitor that sets the delay time for the power-on reset
output.Thecurrentsourceisa1µAcurrentsourcethatcharges
a capacitor up from 0V. When the capacitor reaches 1.25V,
the output of the POR is allowed to go high.
February 2006
9
M9999-022106
MIC2212
Micrel, Inc.
Package Information
10-Pin 3mm x 3mm MLF (ML)
MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com
This information furnished by Micrel in this data sheet 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 a Purchaser's own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2004 Micrel Incorporated
M9999-022106
10
February 2006
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