MIC2213-JSBML [MICREL]
Sequenced Portable Power Management IC; 测序便携式电源管理IC型号: | MIC2213-JSBML |
厂家: | MICREL SEMICONDUCTOR |
描述: | Sequenced Portable Power Management IC |
文件: | 总11页 (文件大小:1001K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MIC2213
Sequenced Portable Power Management IC
General Description
Features
The MIC2213 is a dual µCap low dropout regulator with an
open-drain driver and power-on reset circuit. The first regula-
tor is capable of sourcing 150mA, while the second regulator
can source up to 300mA.Apower-on reset function monitors
both outputs, indicating a fault on either output 1 or output 2.
The open-drain output is capable of sinking 150mA for LED
backlighting applications.
• 2 LDO outputs
• Output 1 - 150mA output current
• Output 2 - 300mA output current
• 1 Open-drain driver
• Power-on reset function with adjustable delay time
• Sequencing between outputs 1 and 2
• Input voltage range: 2.25V to 5.5V
• Stable with ceramic output capacitor
• 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 3mm × 3mm MLF™-10 package
The MIC2213 adds the additional feature of sequencing
between the outputs, with the output of regulator 1 having to
settle before the output of regulator 2 can begin to turn-on.
Idealforbatteryoperatedapplications,theMIC2213offers1%
accuracy, extremely low dropout voltage (80mV @ 100mA),
and extremely low ground current, only 48µAtotal. Equipped
with a TTL logic compatible enable pin, the MIC2213 can be
put into a zero-off-mode current state, drawing no current
when disabled.
Applications
• Cellular/PCS phones
• Wireless modems
• PDAs
The MIC2213 is a µCap design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2213 is available in fixed output voltages in the
10-pin 3mm × 3mm MLF™ leadless package and is also
available with adjustable output voltages in the 4mm × 4mm
16-pin MLF™ package.
Typical Application
100kΩ
MIC2213-xxBML
VIN
1µF
VIN
VOUT1
VOUT2
POR
VANALOG
OFF
OFF
ON
ON
EN
VDIGITAL
VCORE
CBYP
SW
/RST
Baseband
Processor
0.01µF
DRV
1µF
Ceramic
MEMORY
SET
Keyboard Backlighting LED
CDELAY
GND
MIC2213 Typical Cellphone 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
October 2005
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MIC2213
Micrel, Inc.
Ordering Information
Part Number
Voltage*
Junction
(VO1 / VO2) Temperature Range
Package
Full
Manufacturing
MIC2213-GNBML
MIC2213-JSBML
MIC2213-AABML
Pb-Free
MIC2213-1.8/2.85BML
MIC2213-2.5/3.3BML
MIC2213-Adj/AdjBML
MIC2213-GNYML
MIC2213-JSYML
MIC2213-AAYML
1.8V/2.85V
2.5V/3.3V
Adj/Adj
–40ºC to +125ºC
–40ºC to +125ºC
–40ºC to +125ºC
10-Pin 3x3 MLF™
10-Pin 3x3 MLF™
16-Pin 4x4 MLF™
* Contact factory regarding availability for voltages not listed.
Voltage
Adj.
1.5
Code
A
F
1.6
W
G
H
E
1.8
2.0
2.1
2.5
J
2.6
K
2.7
L
2.8
M
N
O
P
2.850
2.9
3.0
3.1
Q
R
S
3.2
3.3
3.4
T
3.5
U
V
3.6
Table 1. Voltage Codes
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Micrel, Inc.
Pin Configuration
16
15 14
13
EN 1
NC
12 POR
DRV
2
11
10 VOUT1
VIN
EN
1
2
3
4
5
BYP 3
10 ADJ
9
8
7
6
VOUT2
POR
BYP
SW
ADJ1 4
9 NGND
DRV
5
8
6
7
GND
SET
10-Pin 3mm × 3mm MLF™ (ML)
16-Pin 4mm × 4mm MLF™ (ML)
(Top View)
Pin Description
Pin Number
Pin Number
Pin Name
Pin Function
Supply Input (VIN1 and VIN2 are internally tied together.)
MLF-10 (3x3)
MLF-16 (4x4)
1
2
15, 16
-
VIN
EN
Enable Input for Regulator 1: Regulator 2 internally enabled when regulator
1 reaches 90% of nominal output. Active High input.
-
2
3
NC
Not internally connected.
3
CBYP
Reference Bypass: Connect external 0.01µF to GND to reduce output noise.
May be left open.
4
-
5
4
SW
Active high signal drives open-drain N-channel MOSFET.
ADJ1
Adjust Input (Regulator 1): Connect feedback resistors to program the out-
put voltage for the regulator.
5
6
SET
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
9
GND
Ground: Connect externally to Exposed Pad.
NGND
Ground for the open-drain driver. Tied to the source of the NMOSFET. Tied
to GND internally.
-
10
ADJ2
Adjust Input (Regulator 2): Connect feedback resistors to program the out-
put voltage for the regulator.
7
8
11
12
DRV
POR
Open-Drain Output: Capable of sinking 150mA.
Power-On Reset Output: Open-drain output. Active low indicates an output
undervoltage condition on regulator 2.
9
13
14
EP
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
ground pin.
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Absolute Maximum Rating (Note 1)
Operating Ratings (Note 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 ) 1" square 2 oz. copper...............60°C/W
Storage Temperature (T ) .......................... –65°C to 150°C
JA
S
Open-Drain Output (DRV) ........................................ 250mA
Lead Temperature (soldering, 5 sec.)........................ 260°C
Electrical Characteristics (Note 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
40
ppm/C
%/V
Line Regulation; Note 5
VIN = VOUT +1V to 5.5V
–0.3
0.02
0.3
–0.6
0.6
Load Regulation
IOUT = 100µA to 150mA (Regulator 1 and 2)
0.2
1.0
1.5
%
IOUT = 100µA to 300mA (Regulator 2)
%
Dropout Voltage; Note 6
IOUT = 150mA (Regulator 1 and 2)
IOUT = 300mA (Regulator 2)
IOUT1 = IOUT2 = 0µA
120
240
48
190
250
mV
mV
340
420
mV
Ground Pin Current
65
80
µA
µA
IOUT1 = 150mA & IOUT2 = 300mA
VEN ≤ 0.4V
60
µA
µA
Ground Pin Current in Shutdown
Ripple Rejection
1.0
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
70
460
700
mA
mA
µs
VOUT = 0V (Regulator 2)
TDELAY; Note 7
Sequenced delay time
Output Voltage Noise
Enable Input
COUT =1µF, CBYP =0.01µF, 10Hz to 100kHz
30
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
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Micrel, Inc.
Parameter
DRV Output
Voltage Low
Conditions
Min
Typ
Max
Units
IDRV = 150mA
0.2
0.5
V
0.6
Leakage Current
SW Input Voltage
IDRV = 0mA, VDRV = 5.5V, SW = 0V
Logic Low (DRV Shutdown)
Logic High (DRV Enabled)
VIL < 0.6V (DRV Shutdown)
VIH > 1.8V (DRV Enabled)
–1
0.01
+1
µA
V
0.6
1.8
–1
–1
V
SW Input Current
0.01
0.01
+1
+1
µA
µA
SET Input
SET Pin Current Source
SET Pin Threshold Voltage
VSET = 0V
0.75
1.25
1.25
1.75
µA
V
POR = High
Note 1. Exceeding maximum rating may damage the device.
Note 2. The device is not guaranteed to work outside its operating rating.
Note 3. The maximum allowable power dissipation of any TA (ambient temperature) is (PD(max) = TJ(max) – TA) / θJA. Exceeding the maximum allow-
able power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
Note 4. Specification for packaged product only.
Note 5. Minimum input for line regulation test is set to VOUT + 1V relative to the highest output voltage.
Note 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.
Note 7. Time measured from output of regulator 1 reaching 90% of its final value to output of regulator 2 reaching 90% of its final value.
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Typical Characteristics
Spectal Noise
Density Output 1
PSRR Output 2
PSRR Output 1
80
60
40
20
0
80
10E-6
1E-6
CBYP = 100nF
100µA Load
CBYP = 100nF
CBYP = 10nF
CBYP = 10nF
60
CBYP = 1nF
CBYP = 1nF
40
100E-9
COUT= 1µF
CIN = 1µF
CBYP = 0.01µF
20
VIN = VOUT + 1
IOUT = 300mA
COUT = 1µF
VIN = VOUT + 1
IOUT = 150mA
COUT = 1µF
0
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)
Spectral Noise
Density Output 2
Dropout Characteristics
Output 2
Dropout Characteristics
Output 1
10E-6
1E-6
3
2.5
2
3
2.5
2
100µA Load
100µA
100µA
300mA
150mA
1.5
1
1.5
1
100E-9
10E-9
COUT = 1µF
CIN = 1µF
CBYP = 0.01µF
0.5
0
0.5
0
0
1
2
3
4
5
0
1
2
3
4
5
10
100 1k
10k 100k 1M
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Dropout Voltage
Output 2
Ground Current
Dropout Voltage
Output 1
vs. Supply Voltage
150
100
50
350
300
250
200
150
100
50
60
50
40
30
20
10
0
Output 1 and 2
with 100µA load
150mAload
300mAload
0
0
-40 -20
0 20 40 60 80 100120140
TEMPERATURE (°C)
-40 -20
0
20 40 60 80 100120140
0
1
2
3
4
5
6
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
Ground Current
vs. Output 1 Current
Ground Current
vs. Output 2 Current
Ground Pin Current
60
50
40
30
20
10
0
60
50
40
30
20
10
0
60
50
40
30
20
10
0
1mA
100µA
0µA
Load on both outputs
TEMPERATURE (°C)
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)
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Typical Characteristics (cont.)
Output Voltage
vs. Load Current
2.610
Output Voltage
Output Voltage 1
vs. Temperature
vs. Load Current
2.870
2.865
2.860
2.855
2.850
2.845
2.840
2.835
2.830
2.825
2.820
3.15
3.10
3.05
3.00
2.95
2.90
2.85
100µA load
2.605
2.600
2.595
2.590
2.585
2.580
0
25 50 75 100 125 150
0
50 100 150 200 250 300
-40 -20
0
20 40 60 80 100120140
OUTPUT 1 LOAD CURRENT (mA)
OUTPUT 2 LOAD CURRENT (mA)
TEMPERATURE (°C)
Output Voltage 2
vs. Temperature
Switch Threshold
vs. Supply Voltage
Enable Voltage Threshold
vs. Supply Voltage
2.95
2.90
2.85
2.80
2.75
2.70
2.65
1.20
1.00
0.80
0.60
0.40
0.20
0.00
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
Drive Current = 1mA
100µA load
-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)
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
POR Delay
10M
1M
100k
10k
1k
100
10
C
= 1µF
IN
C
I
= 1µF
OUT
LOAD =100µA
1
100
10k 100k 1M
1k
1
10
POR SETTING CAP (pF)
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Micrel, Inc.
Functional Characteristics
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MIC2213
Micrel, Inc.
Functional Diagram
VIN
EN
OUT1
LDO1
OUT2
POR
LDO2
Delay
SET
DRV
CBYP
SW
Reference
GND
NGND
MIC2213 Fixed Voltage Block Diagram
VIN
EN
OUT1
ADJ1
LDO1
OUT2
ADJ2
LDO2
Delay
POR
SET
CBYP
SW
DRV
Reference
GND
NGND
MIC2213 Adjustable Voltage Block Diagram
Power-On Reset (POR)
Functional Description
The power-on reset output is an open-drain N-channel de-
vice, 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 MIC2213 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.Thefirstregulatoriscapableofsourcing150mAatout-
putvoltagesfrom1.25Vto5V.Thesecondregulatoriscapable
of sourcing 300mA of 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.
An open-drain driver completes the power management
chipset, offering the capability of driving LEDs for keypad
backlighting in applications such as cellphones.
The SET pin is a current source output that charges a ca-
pacitor that sets the delay time for the power-on reset output.
The current source is a 1µA current source that charges a
capacitor up from 0V. When the capacitor reaches 1.25V, the
output of the POR is allowed to go high.
Open-Drain Driver (DRV)
Thedrive(DRV)pinisanopen-drainoutputcapableofsinking
150mA of current. This output is controlled by a logic level
input, the switch (SW) pin. The switch pin is an active high
input and cannot be left floating.
Enable
The enable input allows for logic control of both output volt-
ages with one enable input. The enable input is active high,
requiring 1.8V for guaranteed operation. The enable input is
CMOS logic and cannot by left floating.
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Micrel, Inc.
Adjustable Regulator Design
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.
VOUT1
R1
VOUT2
ADJ2
R1
ADJ1
Bypass Capacitor
R2
R2
The internal reference voltage of the MIC2213 can be by-
passed with a capacitor to ground to reduce output noise and
increasepowersupplyrejection(PSRR).Aquick-startfeature
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.
GND
MIC2213 Adjustable Regulator Design
The MIC2213 allows the programming of the output voltages
1 and 2 anywhere between 1.25V and 5.5V, the maximum
operatingratingofthepart.Tworesistorsarerequiredforeach
output. Appropriate resistor values are required to prevent
the low quiescent current performance being compromised.
Resistor values recommended are between 100kΩ and
500kΩ.
Output Capacitor
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.
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 resistor values are calculated by:
V
OUT
R1 = R2
– 1
1.250
where V
is the desired output voltage. Calculate sepa-
OUT
rately for each output.
M9999-101705
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October 2005
MIC2213
Micrel, Inc.
Package Information
10-Lead MLF™ (ML)
16-Lead 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.
© 2003 Micrel, Inc.
October 2005
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M9999-101705
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