Micrel MIC2213-1.8/2.85BML Sequenced portable power management ic Datasheet

MIC2213
Micrel, Inc.
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 regulator is capable of sourcing 150mA, while the second regulator
can source up to 300mA. A power-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.
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.
Ideal for battery operated applications, the MIC2213 offers 1%
accuracy, extremely low dropout voltage (80mV @ 100mA),
and extremely low ground current, only 48µA total. 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.
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.
• 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
Applications
• Cellular/PCS phones
• Wireless modems
• PDAs
Typical Application
100kΩ
MIC2213-xxBML
VIN
1µF
OFF
ON
0.01µF
OFF
ON
VIN
VOUT1
VANALOG
EN
VOUT2
VDIGITAL
VCORE
CBYP
POR
SW
DRV
SET
CDELAY
/RST
Baseband
Processor
1µF
Ceramic
Keyboard Backlighting LED
MEMORY
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
1
M9999-101705
MIC2213
Micrel, Inc.
Ordering Information
Part Number
Full
Manufacturing
Pb-Free
Voltage*
(VO1 / VO2)
Junction
Temperature Range
Package
MIC2213-1.8/2.85BML
MIC2213-GNBML
MIC2213-GNYML
1.8V/2.85V
–40ºC to +125ºC
10-Pin 3x3 MLF™
MIC2213-2.5/3.3BML
MIC2213-JSBML
MIC2213-JSYML
2.5V/3.3V
–40ºC to +125ºC
10-Pin 3x3 MLF™
MIC2213-Adj/AdjBML
MIC2213-AABML
MIC2213-AAYML
Adj/Adj
–40ºC to +125ºC
16-Pin 4x4 MLF™
* Contact factory regarding availability for voltages not listed.
Voltage
Code
Adj.
A
1.5
F
1.6
W
1.8
G
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
M9999-101705
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October 2005
MIC2213
Micrel, Inc.
Pin Configuration
16
VIN 1
10 VOUT1
EN 2
9 VOUT2
BYP 3
8 POR
SW 4
7 DRV
SET 5
6 GND
15
14
13
EN 1
12 POR
NC 2
11 DRV
BYP 3
10 ADJ
ADJ1 4
9 NGND
5
10-Pin 3mm × 3mm MLF™ (ML)
(Top View)
6
7
8
16-Pin 4mm × 4mm MLF™ (ML)
Pin Description
Pin Number
MLF-10 (3x3)
Pin Number
MLF-16 (4x4)
Pin Name
Pin Function
1
15, 16
VIN
Supply Input (VIN1 and VIN2 are internally tied together.)
2
-
EN
Enable Input for Regulator 1: Regulator 2 internally enabled when regulator
1 reaches 90% of nominal output. Active High input.
-
2
NC
3
3
CBYP
Not internally connected.
4
5
SW
-
4
ADJ1
Adjust Input (Regulator 1): Connect feedback resistors to program the output 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
GND
Ground: Connect externally to Exposed Pad.
-
9
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 output voltage for the regulator.
7
11
DRV
Open-Drain Output: Capable of sinking 150mA.
8
12
POR
Power-On Reset Output: Open-drain output. Active low indicates an output
undervoltage condition on regulator 2.
Reference Bypass: Connect external 0.01µF to GND to reduce output noise.
May be left open.
Active high signal drives open-drain N-channel MOSFET.
9
13
VOUT2
Output of Regulator 2: 300mA output current
10
14
VOUT1
Output of Regulator 1: 150mA output current
EP
EP
GND
October 2005
Ground: Internally connected to the Exposed Pad. Connect externally to
ground pin.
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M9999-101705
MIC2213
Micrel, Inc.
Absolute Maximum Rating (Note 1)
Operating Ratings (Note 2)
Supply Input Voltage (VIN) ......................................0V to 7V
Enable Input Voltage (VEN) ....................................0V to 7V
Power Dissipation (PD) ................ Internally Limited, Note 3
Junction Temperature ............................... –40°C to +125°C
Storage Temperature (TS) .......................... –65°C to 150°C
Open-Drain Output (DRV) ........................................ 250mA
Lead Temperature (soldering, 5 sec.) ........................ 260°C
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) 1" square 2 oz. copper ............... 60°C/W
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
Output Voltage Accuracy
Variation from nominal VOUT
–1.0
–2.0
Output Voltage Temp. Coefficient
VIN = VOUT +1V to 5.5V
Load Regulation
IOUT = 100µA to 150mA (Regulator 1 and 2)
Ground Pin Current
Ground Pin Current in Shutdown
Ripple Rejection
Current Limit
TDELAY; Note 7
Output Voltage Noise
Enable Input
Enable Input Voltage
Enable Input Current
POR Output
VTH
VOL
IPOR
M9999-101705
Max
Units
+1.0
+2.0
%
%
40
Line Regulation; Note 5
Dropout Voltage; Note 6
Typ
–0.3
–0.6
IOUT = 100µA to 300mA (Regulator 2)
ppm/C
0.02
0.3
0.6
%/V
0.2
1.0
%
1.5
%
IOUT = 150mA (Regulator 1 and 2)
120
190
250
mV
mV
IOUT = 300mA (Regulator 2)
240
340
420
mV
IOUT1 = IOUT2 = 0µA
48
65
80
µA
µA
IOUT1 = 150mA & IOUT2 = 300mA
60
f = 1kHz; COUT = 1.0µF ceramic; CBYP = 10nF
f = 20kHz; COUT = 1.0µF ceramic; CBYP = 10nF
VOUT = 0V (Regulator 1)
VOUT = 0V (Regulator 2)
µA
1.0
VEN ≤ 0.4V
µA
60
dB
40
dB
150
280
460
mA
300
450
700
mA
Sequenced delay time
70
µs
COUT =1µF, CBYP =0.01µF, 10Hz to 100kHz
30
µVrms
Logic Low (Regulator Shutdown)
0.6
V
Logic High (Regulator Enabled)
1.8
VIL < 0.6V (Regulator Shutdown)
–1
0.01
+1
µA
VIH > 1.8V (Regulator Enabled)
–1
0.01
+1
µA
Low Threshold, % of nominal VOUT2 (Flag ON)
90
High Threshold, % of nominal VOUT2 (Flag OFF)
POR Output Logic Low Voltage; IL = 250µA
Flag Leakage Current, Flag OFF
4
V
%
96
–1
%
0.02
0.1
V
0.01
+1
µA
October 2005
MIC2213
Parameter
Micrel, Inc.
Conditions
Min
Typ
Max
Units
0.2
0.5
0.6
V
0.01
+1
µA
DRV Output
Voltage Low
IDRV = 150mA
Leakage Current
IDRV = 0mA, VDRV = 5.5V, SW = 0V
–1
Logic High (DRV Enabled)
1.8
VIL < 0.6V (DRV Shutdown)
–1
0.01
+1
µA
–1
0.01
+1
µA
0.75
1.25
1.75
µA
SW Input Voltage
SW Input Current
SET Input
SET Pin Current Source
SET Pin Threshold Voltage
0.6
Logic Low (DRV Shutdown)
VIH > 1.8V (DRV Enabled)
VSET = 0V
POR = High
V
V
1.25
V
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 allowable 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.
Note 7.
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.
Time measured from output of regulator 1 reaching 90% of its final value to output of regulator 2 reaching 90% of its final value.
October 2005
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M9999-101705
MIC2213
Micrel, Inc.
Typical Characteristics
PSRR Output 1
80
CB YP = 100nF
CB YP = 10nF
60
10E-6
CB YP = 100nF
CB YP = 1nF
40
20
VIN = VOUT + 1
IOUT = 150mA
COUT = 1µF
100E-9
1000
100µA Load
0
0.01
3
0.1
1
10
100
FREQUENCY (kHz)
1000
Dropout Characteristics
Output 1
2
1.5
COUT = 1µF
CIN = 1µF
CB YP = 0.01µF
150
10k 100k 1M
100 1k
FREQUENCY (Hz)
Dropout Voltage
Output 1
150mA load
150mA
0.5
0.5
350
300
1
2
3
4
5
SUPPLY VOLTAGE (V)
Dropout Voltage
Output 2
300mA load
0
0
60
50
Output 1 and 2
with 100µA load
10
0
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
0
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
Ground Current
vs. Output 1 Current
Ground Current
vs. Output 2 Current
0
0
60
50
50
50
40
40
40
30
30
30
20
20
20
10
10
10
M9999-101705
Ground Current
vs. Supply Voltage
20
50
0
0
50 100 150 200 250 300
OUTPUT 2 LOAD CURRENT (mA)
6
0
1
2
3
4
5
SUPPLY VOLTAGE (V)
6
Ground Pin Current
1mA
0µA
100µA
Load on both outputs
-40
-20
0
20
40
60
80
100
120
140
160
0
0 20 40 60 80 100 120 140
OUTPUT 1 LOAD CURRENT (mA)
1
2
3
4
5
SUPPLY VOLTAGE (V)
30
100
60
300mA
40
150
60
100 1k
10k 100k 1M
FREQUENCY (Hz)
100µA
1.5
1
200
50
3
1
0
0
CB YP = 0.01µF
Dropout Characteristics
Output 2
2
100µA
250
100
10E-9
10
2.5
2.5
1E-6
COU T = 1µF
CIN = 1µF
VIN = VOUT + 1
IOUT = 300mA
COUT = 1µF
0.1
1
10
100
FREQUENCY (kHz)
Spectral Noise
Density Output 2
10E-6
10E-9
10
100µA Load
CB YP = 10nF
60
CB YP = 1nF
0
0.01
100E-9
Spectal Noise
Density Output 1
1E-6
40
20
PSRR Output 2
80
TEMPERATURE (°C)
October 2005
MIC2213
Micrel, Inc.
Typical Characteristics (cont.)
Output Voltage
vs. Load Current
2.610
2.605
2.600
2.595
2.590
2.585
2.580
0
25 50 75 100 125 150
OUTPUT 1 LOAD CURRENT (mA)
Output Voltage 2
vs. Temperature
2.95
100µA load
2.90
Output Voltage
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
0
50 100 150 200 250 300
OUTPUT 2 LOAD CURRENT (mA)
1.20
Switch Threshold
vs. Supply Voltage
Drive Current = 1mA
1.00
3.15
3.10
Output Voltage 1
vs. Temperature
100µA load
3.05
3.00
2.95
2.90
2.85
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
1.60
Enable Voltage Threshold
vs. Supply Voltage
1.40
1.20
2.85
0.80
2.80
0.60
2.75
0.40
2.70
0.20
2.65
-40 -20 0 20 40 60 80 100120140
TEMPERATURE (°C)
0.00
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
1.00
0.80
0.60
0.40
0.20
0.00
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
POR Delay
10M
1M
100k
10k
1k
100
CIN = 1µF
C OUT = 1µF
ILOAD = 100µA
10
1
1
10 100 1k 10k 100k 1M
POR SETTING CAP (pF)
October 2005
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M9999-101705
MIC2213
Micrel, Inc.
Functional Characteristics
M9999-101705
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October 2005
MIC2213
Micrel, Inc.
Functional Diagram
VIN
OUT1
LDO1
EN
LDO2
OUT2
Delay
POR
SET
CBYP
DRV
Reference
SW
GND
NGND
MIC2213 Fixed Voltage Block Diagram
VIN
OUT1
ADJ1
LDO1
EN
OUT2
ADJ2
LDO2
Delay
POR
SET
CBYP
DRV
Reference
SW
GND
NGND
MIC2213 Adjustable Voltage Block Diagram
Functional Description
Power-On Reset (POR)
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.
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)
The drive (DRV) pin is an open-drain output capable of sinking
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.
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. 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. 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.
Enable
The enable input allows for logic control of both output voltages 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.
October 2005
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M9999-101705
MIC2213
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.
Bypass Capacitor
The internal reference voltage of the MIC2213 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. 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 operating 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.
M9999-101705
R1
VOUT1
VOUT2
ADJ1
R2
R1
ADJ2
GND
R2
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
operating rating of the part. Two resistors are required for each
output. Appropriate resistor values are required to prevent
the low quiescent current performance being compromised.
Resistor values recommended are between 100kΩ and
500kΩ.
The resistor values are calculated by:
VOUT
R1 = R2
–1
1.250
where VOUT is the desired output voltage. Calculate separately for each output.
10
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
11
M9999-101705
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