July 2003
1
MIC2213
MIC2213
Micrel
MIC2213
Sequenced Portable Power Management IC
General Description
The MIC2213 is a dual
Cap low dropout regulator with an
open-drain driver and power-on reset circuit. The first regu-
lator is capable of sourcing 150mA, while the second regula-
tor 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 48
A 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
Cap 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 MLFTM leadless package and is also
available with adjustable output voltages in the 4mm
4mm
16-pin MLFTM package.
Typical Application
VIN
V
IN
C
DELAY
EN
CBYP
SW
0.01
F
1
F
100k
SET
Keyboard Backlighting LED
Baseband
Processor
VOUT1
V
ANALOG
VOUT2
POR
V
DIGITAL
V
CORE
/RST
DRV
GND
MIC2213-xxBML
1
F
Ceramic
OFF
ON
OFF
ON
MEMORY
MIC2213 Typical Cellphone Application
Features
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 48
A
High output accuracy:
+1.0% initial accuracy
+2.0% over temperature
Thermal Shutdown Protection
Current Limit Protection
Tiny 3mm
3mm MLFTM-10 package
Applications
Cellular/PCS phones
Wireless modems
PDAs
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
Micro
LeadFrame and MLF are trademarks of Amkor Technology.
MIC2213
Micrel
MIC2213
2
July 2003
Ordering Information
Full Part Number
Manufacturing
Voltage*
Junction Temp. Range
Package
Part Number
(Vo1/Vo2)
MIC2213-1.8/2.85BML
MIC2213-GNBML
1.8V/2.85V
40
C to +125
C
10-Pin 3
3 MLFTM
MIC2213-2.6/2.85BML
MIC2213-KNBML*
2.6V/2.85V
40
C to +125
C
10-Pin 3
3 MLFTM
MIC2213-Adj/AdjBML
MIC2213-AABML
Adj/Adj
40
C to +125
C
16-Pin 4
4 MLFTM
* Contact Micrel Marketing for availability of this and other options.
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
July 2003
3
MIC2213
MIC2213
Micrel
1
2
3
4
12
16
15
14
13
8
7
6
5
11
10
9
EN
NC
BYP
ADJ1
POR
DRV
ADJ
NGND
SW
SET
GND
GND
VIN
VIN
V
OUT1
V
OUT2
16-Pin 4mm
4mm MLFTM (ML)
Pin Description
Pin Number
Pin Number
Pin Name
Pin Function
MLF-10 (3x3)
MLF-16 (4x4)
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
Not internally connected.
3
3
CBYP
Reference Bypass: Connect external 0.01
F to GND to reduce output noise.
May be left open.
4
5
SW
Active high signal drives open-drain N-channel MOSFET.
-
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.
9
13
VOUT2
Output of Regulator 2: 300mA output current
10
14
VOUT1
Output of Regulator 1: 150mA output current
EP
EP
GND
Ground: Internally connected to the Exposed Pad. Connect externally to
ground pin.
1
VIN
EN
BYP
SW
SET
10 VOUT1
VOUT2
POR
DRV
GND
9
8
7
6
2
3
4
5
10-Pin 3mm
3mm MLFTM (ML)
(Top View)
Pin Configuration
MIC2213
Micrel
MIC2213
4
July 2003
Electrical Characteristics
(Note 4)
V
IN
= V
OUT
+1.0V for higher output of the regulator pair; C
OUT
= 1.0
F, I
OUT
= 100
A; T
J
= 25
C, bold values indicate
40
C
T
J
+125
C; unless noted.
Parameter
Conditions
Min
Typ
Max
Units
Output Voltage Accuracy
Variation from nominal V
OUT
1.0
+1.0
%
2.0
+2.0
%
Output Voltage Temp. Coefficient
40
ppm/C
Line Regulation; Note 5
V
IN
= V
OUT
+1V to 5.5V
0.3
0.02
0.3
%/V
0.6
0.6
Load Regulation
I
OUT
= 100
A to 150mA (Regulator 1 and 2)
0.2
1.0
%
I
OUT
= 100
A to 300mA (Regulator 2)
1.5
%
Dropout Voltage; Note 6
I
OUT
= 150mA (Regulator 1 and 2)
120
190
mV
250
mV
I
OUT
= 300mA (Regulator 2)
240
340
mV
420
Ground Pin Current
I
OUT1
= I
OUT2
= 0
A
48
65
A
80
A
I
OUT1
= 150mA & I
OUT2
= 300mA
60
A
Ground Pin Current in Shutdown
V
EN
0.4V
2.0
A
Ripple Rejection
f = 1kHz; C
OUT
= 1.0
F ceramic; C
BYP
= 10nF
60
dB
f = 20kHz; C
OUT
= 1.0
F ceramic; C
BYP
= 10nF
40
dB
Current Limit
V
OUT
= 0V (Regulator 1)
150
280
460
mA
V
OUT
= 0V (Regulator 2)
300
450
700
mA
T
DELAY
; Note 7
Sequenced delay time
70
s
Output Voltage Noise
C
OUT
=1
F, C
BYP
=0.01
F, 10Hz to 100kHz
30
Vrms
Enable Input
Enable Input Voltage
Logic Low (Regulator Shutdown)
0.6
V
Logic High (Regulator Enabled)
1.8
V
Enable Input Current
V
IL
< 0.6V (Regulator Shutdown)
1
0.01
+1
A
V
IH
> 1.8V (Regulator Enabled)
1
0.01
+1
A
POR Output
V
TH
Low Threshold, % of nominal V
OUT2
(Flag ON)
90
%
High Threshold, % of nominal V
OUT2
(Flag OFF)
96
%
V
OL
POR Output Logic Low Voltage; I
L
= 250
A
0.02
0.1
V
I
POR
Flag Leakage Current, Flag OFF
1
0.01
+1
A
Absolute Maximum Rating
(Note 1)
Supply Input Voltage (V
IN
) .................................... 0V to 7V
Enable Input Voltage (V
EN
) ................................... 0V to 7V
Power Dissipation (P
D
) ............... Internally Limited, Note 3
Junction Temperature .............................. 40
C to +125
C
Storage Temperature (T
S
) ......................... 65
C to 150
C
Open-Drain Output (DRV) ........................................ 250mA
Lead Temperature (soldering, 5 sec.) ....................... 260
C
Operating Ratings
(Note 2)
Supply Input Voltage (V
IN
) ............................ 2.25V to 5.5V
Enable Input Voltage (V
EN
) .................................. 0V to Vin
Junction Temperature (T
J
) ....................... 40
C to +125
C
Package Thermal Resistance
MLFTM-10 (
JA
) .................................................... 60
C/W
July 2003
5
MIC2213
MIC2213
Micrel
Parameter
Conditions
Min
Typ
Max
Units
DRV Output
Voltage Low
I
DRV
= 150mA
0.2
0.5
V
0.6
Leakage Current
I
DRV
= 0mA, V
DRV
= 5.5V, SW = 0V
1
0.01
+1
A
SW Input Voltage
Logic Low (DRV Shutdown)
0.6
V
Logic High (DRV Enabled)
1.8
V
SW Input Current
V
IL
< 0.6V (DRV Shutdown)
1
0.01
+1
A
V
IH
> 1.8V (DRV Enabled)
1
0.01
+1
A
SET Input
SET Pin Current Source
V
SET
= 0V
0.75
1.25
1.75
A
SET Pin Threshold Voltage
P
OR
= High
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 T
A
(ambient temperature) is (P
D(max)
= T
J(max)
T
A
) /
JA
. 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 V
OUT
+ 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.
MIC2213
Micrel
MIC2213
6
July 2003
0
0.5
1
1.5
2
2.5
3
0
1
2
3
4
5
OUTPUT (V)
SUPPLY VOLTAGE (V)
Dropout Characteristics
Output 1
150mA
100
A
0
0.5
1
1.5
2
2.5
3
0
1
2
3
4
5
OUTPUT (V)
SUPPLY VOLTAGE (V)
Dropout Characteristics
Output 2
300mA
100
A
0
10
20
30
40
50
60
0
1
2
3
4
5
6
GROUND CURRENT (
A)
SUPPLY VOLTAGE (V)
Ground Current
vs. Supply Voltage
Output 1 and 2
with 100
A load
0
10
20
30
40
50
60
0
20 40 60 80 100 120 140
GROUND CURRENT (
A)
OUTPUT 1 LOAD CURRENT (mA)
Ground Current
vs. Output 1 Current
0
10
20
30
40
50
60
0
50
100 150 200 250 300
GROUND CURRENT (
A)
OUTPUT 2 LOAD CURRENT (mA)
Ground Current
vs. Output 2 Current
10E-9
100E-9
1E-6
10E-6
SPECTRAL NOISE DENSITY (V/root Hz)
FREQUENCY (Hz)
Spectral Noise
Density Output 1
C
OUT
= 1
F
C
IN
= 1
F
C
BYP
= 0.01
F
100
A Load
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
10E-9
100E-9
1E-6
10E-6
SPECTRAL NOISE DENSITY (V/root Hz)
FREQUENCY (Hz)
Spectral Noise
Density Output 2
100
A Load
C
OUT
= 1
F
C
IN
= 1
F
C
BYP
= 0.01
F
0
20
40
60
80
0.01
0.1
1
10
100
1000
PSRR (dB)
FREQUENCY (kHz)
PSRR Output 2
C
BYP
= 10nF
C
BYP
= 100nF
C
BYP
= 1nF
V
IN
= V
OUT
+ 1
I
OUT
= 300mA
C
OUT
= 1
F
0
20
40
60
80
0.01
0.1
1
10
100
1000
PSRR (dB)
FREQUENCY (kHz)
PSRR Output 1
C
BYP
= 10nF
C
BYP
= 100nF
C
BYP
= 1nF
V
IN
= V
OUT
+ 1
I
OUT
= 150mA
C
OUT
= 1
F
0
50
100
150
-40 -20 0 20 40 60 80 100120140
DROPOUT VOLTAGE (mV)
TEMPERATURE (
C)
Dropout Voltage
Output 1
150mA load
0
50
100
150
200
250
300
350
-40 -20 0 20 40 60 80 100120140
DROPOUT VOLTAGE (mV)
TEMPERATURE (
C)
Dropout Voltage
Output 2
300mA load
0
10
20
30
40
50
60
-40
-20
0
20
40
60
80
100
120
140
160
GROUND PIN CURRENT (
A)
TEMPERATURE (
C)
Ground Pin Current
Load on both outputs
0
A
100
A
1mA
Typical Characteristics
July 2003
7
MIC2213
MIC2213
Micrel
2.580
2.585
2.590
2.595
2.600
2.605
2.610
0
25
50
75
100 125 150
OUTPUT VOLTAGE (V)
OUTPUT 1 LOAD CURRENT (mA)
Output Voltage
vs. Load Current
2.820
2.825
2.830
2.835
2.840
2.845
2.850
2.855
2.860
2.865
2.870
0
50
100 150 200 250 300
OUTPUT VOLTAGE (V)
OUTPUT 2 LOAD CURRENT (mA)
Output Voltage
vs. Load Current
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SWITCH THRESHOLD (V)
SUPPLY VOLTAGE (V)
Switch Threshold
vs. Supply Voltage
Drive Current = 1mA
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2.25 2.75 3.25 3.75 4.25 4.75 5.25
ENABLE THRESHOLD (V)
SUPPLY VOLTAGE (V)
Enable Voltage Threshold
vs. Supply Voltage
2.85
2.90
2.95
3.00
3.05
3.10
3.15
-40 -20 0 20 40 60 80 100120140
OUTPUT VOLTAGE (V)
TEMPERATURE (
C)
Output Voltage 1
vs. Temperature
100
A load
2.65
2.70
2.75
2.80
2.85
2.90
2.95
-40 -20 0 20 40 60 80 100120140
OUTPUT VOLTAGE (V)
TEMPERATURE (
C)
Output Voltage 2
vs. Temperature
100
A load
Typical Characteristics (cont.)
TIME (
s)
POR SETTING CAP (pF)
POR Delay
C
IN
= 1
F
COUT = 1
F
I
LOAD = 100
A
1
10
100
1k
10k 100k 1M
1
10
100
1k
10k
100k
10M
1M
MIC2213
Micrel
MIC2213
8
July 2003
Enable Characteristics
Time (100
s/div)
VEN
(2V/div)
V
OUT1
(2V/div)
V
OUT2
(1V/div)
C
IN
= 1
F
C
OUT
= 1
F Ceramic
C
BYP
= 0.01
F
V
IN
= 5V
Power-On Reset Characteristics
Time (400
s/div)
VEN
(2V/div)
POR
(1V/div)
V
OUT1
(2V/div)
V
OUT2
(1V/div)
C
IN
= 1
F
C
OUT
= 1
F Ceramic
C
SET
= 0.01
F
C
BYP
= 0.01
F
V
IN
= 5V
Load Transient Response (LDO 2)
Time (4
s/div)
IOUT2
(200mA/div)
V
OUT1
(100mV/div)
V
OUT2
(100mV/div)
C
IN
= 1
F
C
OUT
= 1
F
C
BYP
= 0.01
F
V
IN
= V
OUT
+1V
300mA
100
A
Load Transient Response (LDO 1)
Time (4
s/div)
IOUT1
(100mA/div)
V
OUT1
(50mV/div)
V
OUT2
(50mV/div)
C
IN
= 1
F
C
OUT
= 1
F
C
BYP
= 0.01
F
V
IN
= V
OUT
+1V
150mA
100
A
Functional Characteristics
July 2003
9
MIC2213
MIC2213
Micrel
Functional Diagram
OUT1
OUT2
POR
DRV
NGND
GND
SW
CBYP
SET
EN
VIN
LDO1
LDO2
Reference
Delay
MIC2213 Fixed Voltage Block Diagram
OUT1
OUT2
POR
DRV
NGND
GND
SW
CBYP
SET
EN
VIN
ADJ2
ADJ1
LDO1
LDO2
Reference
Delay
MIC2213 Adjustable Voltage Block Diagram
Functional Description
The MIC2213 is a high performance, low quiescent current
power management IC consisting of two
Cap 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 manage-
ment 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.
Power-On Reset (POR)
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 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 1
A 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.
MIC2213
Micrel
MIC2213
10
July 2003
Input Capacitor
Good bypassing is recommended from input to ground to
help improve AC performance. A 1
F capacitor or greater
located close to the IC is recommended.
Bypass Capacitor
The internal reference voltage of the MIC2213 can be by-
passed with a capacitor to ground to reduce output noise and
increase power supply rejection (PSRR). A quick-start fea-
ture allows for quick turn-on of the output voltage regardless
of the size of the capacitor. The recommended nominal
bypass capacitor is 0.01
F, but it can be increased without
limit.
Output Capacitor
Each regulator output requires a 1
F ceramic output capaci-
tor for stability. The output capacitor value can be increased
to improve transient response, but performance has been
optimized for a 1
F ceramic type output capacitor.
X7R/X5R dielectric-type ceramic capacitors are recom-
mended because of their temperature performance. X7R-
type capacitors change capacitance by 15% over their oper-
ating 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 capaci-
tor with Y5V dielectric, the value must be much higher than a
X7R ceramic capacitor to ensure the same minimum capaci-
tance over the equivalent operating temperature range.
July 2003
11
MIC2213
MIC2213
Micrel
Package Information
0.20 dia
0.48 typ.
3.00 BSC.
1.50 BSC.
PIN 1 ID
0.85
3.00 BSC.
TOP
BOTTOM
ODD TERMINAL SIDE
EVEN TERMINAL SIDE
TERMINAL TIP
TERMINAL TIP
1.50 BSC.
1
2
3
1
2
3
--0.05
+0.15
0.01
5.0
0.50 BSC.
0.50 BSC.
0.50 BSC.
--0.01
+0.04
0.23
--0.05
+0.07
0.23
--0.05
+0.07
0.01
--0.01
+0.04
0.40
--0.05
+0.15
1.60
--0.15
+0.15
0.80
--0.15
+0.15
2.30
--0.15
+0.15
1.15
--0.15
+0.15
SEATING PLANE
10-Lead MLFTM (ML)
BOTTOM VIEW
TOP VIEW
0.50
0.30
0.60
0.24
2.45
2.15
0.70
--
0.90
--
0.00
0.05
0.20 REF
2.45
2.15
0.30
0.18
0.65 BSC.
PIN 1 ID
0.20 R.
3.75 BSC 4.00 BSC
SEATING PLANE
12
3.75 BSC
1
2
3
4.00 BSC
16-Lead MLFTM (ML)
MICREL, INC.
1849 FORTUNE DRIVE
SAN JOSE, CA 95131
USA
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 944-0970
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.
2003 Micrel, Incorporated.
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