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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 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 48A 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 x 3mm MLFTM leadless package and is also available with adjustable output voltages in the 4mm x 4mm 16-pin MLFTM package.
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 48A * High output accuracy: * +1.0% initial accuracy * +2.0% over temperature * Thermal Shutdown Protection * Current Limit Protection * Tiny 3mm x 3mm MLFTM-10 package
Applications
* Cellular/PCS phones * Wireless modems * PDAs
Typical Application
100k MIC2213-xxBML VIN 1F
OFF ON
VIN EN CBYP
VOUT1 VOUT2 POR DRV 1F Ceramic Keyboard Backlighting LED GND
VANALOG VDIGITAL VCORE /RST Baseband Processor MEMORY
0.01F
OFF
ON
SW SET CDELAY
MIC2213 Typical Cellphone Application
MicroLeadFrame and MLF are trademarks of Amkor Technology.
Micrel, Inc. * 1849 Fortune Drive * San Jose, CA 95131 * USA * tel + 1 (408) 944-0800 * fax + 1 (408) 944-0970 * http://www.micrel.com
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MIC2213
Micrel
Ordering Information
Full Part Number MIC2213-1.8/2.85BML MIC2213-2.6/2.85BML MIC2213-Adj/AdjBML Manufacturing Part Number MIC2213-GNBML MIC2213-KNBML* MIC2213-AABML Voltage* (Vo1/Vo2) 1.8V/2.85V 2.6V/2.85V Adj/Adj Junction Temp. Range -40C to +125C -40C to +125C -40C to +125C Package 10-Pin 3x3 MLFTM 10-Pin 3x3 MLFTM 16-Pin 4x4 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
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VOUT1 VIN VIN
Micrel
VOUT2
Pin Configuration
16 EN 1 NC 2
VIN 1 EN 2 BYP 3 SW 4 SET 5 10 VOUT1 9 VOUT2 8 POR 7 DRV 6 GND
15
14
13 12 POR 11 DRV 10 ADJ 9 NGND
BYP 3 ADJ1 4 5
SW
6
SET
7
GND
8
GND
10-Pin 3mm x 3mm MLFTM (ML) (Top View)
16-Pin 4mm x 4mm MLFTM (ML)
Pin Description
Pin Number MLF-10 (3x3) 1 2 3 4 5 Pin Number MLF-16 (4x4) 15, 16 2 3 5 4 6 Pin Name VIN EN NC CBYP SW ADJ1 SET Pin Function Supply Input (VIN1 and VIN2 are internally tied together.) Enable Input for Regulator 1: Regulator 2 internally enabled when regulator 1 reaches 90% of nominal output. Active High input. Not internally connected. Reference Bypass: Connect external 0.01F to GND to reduce output noise. May be left open. Active high signal drives open-drain N-channel MOSFET. Adjust Input (Regulator 1): Connect feedback resistors to program the output voltage for the regulator. 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. Ground: Connect externally to Exposed Pad. Ground for the open-drain driver. Tied to the source of the NMOSFET. Tied to GND internally. Adjust Input (Regulator 2): Connect feedback resistors to program the output voltage for the regulator. Open-Drain Output: Capable of sinking 150mA. Power-On Reset Output: Open-drain output. Active low indicates an output undervoltage condition on regulator 2. Output of Regulator 2: 300mA output current Output of Regulator 1: 150mA output current Ground: Internally connected to the Exposed Pad. Connect externally to ground pin.
6 7 8 9 10 EP
7,8 9 10 11 12 13 14 EP
GND NGND ADJ2 DRV POR VOUT2 VOUT1 GND
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Absolute Maximum Rating (Note 1)
Supply Input Voltage (VIN) .................................... 0V to 7V Enable Input Voltage (VEN) ................................... 0V to 7V Power Dissipation (PD) ............... Internally Limited, Note 3 Junction Temperature .............................. -40C to +125C Storage Temperature (TS) ......................... -65C to 150C Open-Drain Output (DRV) ........................................ 250mA Lead Temperature (soldering, 5 sec.) ....................... 260C
Operating Ratings (Note 2)
Supply Input Voltage (VIN) ............................ 2.25V to 5.5V Enable Input Voltage (VEN) .................................. 0V to Vin Junction Temperature (TJ) ....................... -40C to +125C Package Thermal Resistance MLFTM-10 (JA) .................................................... 60C/W
Electrical Characteristics (Note 4)
VIN = VOUT +1.0V for higher output of the regulator pair; COUT = 1.0F, IOUT = 100A; TJ = 25C, bold values indicate -40C TJ +125C; unless noted. Parameter Output Voltage Accuracy Output Voltage Temp. Coefficient Line Regulation; Note 5 Load Regulation VIN = VOUT +1V to 5.5V IOUT = 100A to 150mA (Regulator 1 and 2) IOUT = 100A to 300mA (Regulator 2) Dropout Voltage; Note 6 IOUT = 150mA (Regulator 1 and 2) IOUT = 300mA (Regulator 2) Ground Pin Current IOUT1 = IOUT2 = 0A IOUT1 = 150mA & IOUT2 = 300mA Ground Pin Current in Shutdown Ripple Rejection VEN 0.4V f = 1kHz; COUT = 1.0F ceramic; CBYP = 10nF f = 20kHz; COUT = 1.0F ceramic; CBYP = 10nF Current Limit VOUT = 0V (Regulator 1) VOUT = 0V (Regulator 2) TDELAY; Note 7 Output Voltage Noise Enable Input Enable Input Voltage Logic Low (Regulator Shutdown) Logic High (Regulator Enabled) Enable Input Current VIL < 0.6V (Regulator Shutdown) VIH > 1.8V (Regulator Enabled) POR Output VTH VOL IPOR Low Threshold, % of nominal VOUT2 (Flag ON) High Threshold, % of nominal VOUT2 (Flag OFF) POR Output Logic Low Voltage; IL = 250A Flag Leakage Current, Flag OFF -1 0.02 0.01 90 96 0.1 +1 % % V A 1.8 -1 -1 0.01 0.01 +1 +1 0.6 V V A A Sequenced delay time COUT =1F, CBYP =0.01F, 10Hz to 100kHz 150 300 60 40 280 450 70 30 460 700 120 240 48 60 2.0 -0.3 -0.6 Conditions Variation from nominal VOUT Min -1.0 -2.0 40 0.02 0.2 0.3 0.6 1.0 1.5 190 250 340 420 65 80 Typ Max +1.0 +2.0 Units % % ppm/C %/V % % mV mV mV A A A A dB dB mA mA s Vrms
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Parameter DRV Output Voltage Low Leakage Current SW Input Voltage IDRV = 150mA IDRV = 0mA, VDRV = 5.5V, SW = 0V Logic Low (DRV Shutdown) Logic High (DRV Enabled) SW Input Current VIL < 0.6V (DRV Shutdown) VIH > 1.8V (DRV Enabled) SET Input SET Pin Current Source SET Pin Threshold Voltage
Note 1. Note 2. Note 3. Note 4. Note 5. Note 6.
Micrel
Conditions Min Typ Max Units
0.2 -1 0.01
0.5 0.6 +1 0.6
V A V V A A A V
1.8 -1 -1 0.01 0.01 +1 +1
VSET = 0V POR = High
0.75
1.25 1.25
1.75
Exceeding maximum rating may damage the device. The device is not guaranteed to work outside its operating rating. The maximum allowable power dissipation of any TA (ambient temperature) is (PD(max) = TJ(max) - TA) / JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. Specification for packaged product only. Minimum input for line regulation test is set to VOUT + 1V relative to the highest output voltage. 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.
Note 7.
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Typical Characteristics
Spectral Noise Density Output 1
10E-6 100A Load
PSRR Output 1
80
CBYP = 100nF
80
PSRR Output 2
CBYP = 100nF
60 PSRR (dB)
CBYP = 10nF
60 PSRR (dB)
CBYP = 10nF
SPECTRAL NOISE DENSITY (V/root Hz)
1E-6
40
CBYP = 1nF
40
CBYP = 1nF
100E-9
20
VIN = VOUT + 1 IOUT = 150mA COUT = 1F
20
VIN = VOUT + 1 IOUT = 300mA COUT = 1F
COUT = 1F C = 1F
IN
CBYP = 0.01F 10E-9 10 1k 100 10k 100k FREQUENCY (Hz) 1M
0 0.01
0.1 1 10 100 FREQUENCY (kHz)
1000
0 0.01
0.1 1 10 100 FREQUENCY (kHz)
1000
SPECTRAL NOISE DENSITY (V/root Hz)
Spectral Noise Density Output 2
10E-6 100A Load 2.5 OUTPUT (V) 1E-6 3
Dropout Characteristics Output 1
3 2.5 100A 150mA OUTPUT (V) 2 1.5 1 0.5 1 2 3 4 5 SUPPLY VOLTAGE (V) 0 0
Dropout Characteristics Output 2
2 1.5 1 0.5 0 0
100A 300mA
100E-9
COUT = 1F C = 1F
IN
CBYP = 0.01F 10E-9 10 100 1k 10k 100k FREQUENCY (Hz) 1M 1 2 3 4 5 SUPPLY VOLTAGE (V)
150 DROPOUT VOLTAGE (mV)
Dropout Voltage Output 1
DROPOUT VOLTAGE (mV) 150mA load
Dropout Voltage Output 2
350 300 250 200 150 100 50 0 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (C) GROUND CURRENT (A) 300mA load 60 50 40 30 20 10 0 0
Ground Current vs. Supply Voltage
Output 1 and 2 with 100A load
100
50
0 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (C)
1 2 3 4 5 SUPPLY VOLTAGE (V)
6
Ground Current vs. Output 1 Current
60 GROUND CURRENT (A) 50 40 30 20 10 0 0 20 40 60 80 100 120 140 OUTPUT 1 LOAD CURRENT (mA) GROUND CURRENT (A) 60 50 40 30 20 10
Ground Current vs. Output 2 Current
60 GROUND PIN CURRENT (A) 50 40 30 20 10
Ground Pin Current
1mA 100A 0A
Load on both outputs -40 -20 0 20 40 60 80 100 120 140 160 0
0 0 50 100 150 200 250 300 OUTPUT 2 LOAD CURRENT (mA)
TEMPERATURE (C)
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Typical Characteristics (cont.)
Output Voltage vs. Load Current
2.610 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2.605 2.600 2.595 2.590 2.585 2.580 0 25 50 75 100 125 150 OUTPUT 1 LOAD CURRENT (mA) 2.870 OUTPUT VOLTAGE (V) 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)
Output Voltage vs. Load Current
3.15 3.10 3.05 3.00 2.95 2.90
Output Voltage 1 vs. Temperature
100A load
2.85 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (C)
Output Voltage 2 vs. Temperature
2.95 SWITCH THRESHOLD (V) OUTPUT VOLTAGE (V) 2.90 2.85 2.80 2.75 2.70 2.65 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (C) 100A load 1.20 1.00 0.80 0.60 0.40 0.20
Switch Threshold vs. Supply Voltage
1.60 ENABLE THRESHOLD (V) Drive Current = 1mA 1.40 1.20 1.00 0.80 0.60 0.40 0.20
Enable Voltage Threshold vs. Supply Voltage
0.00 2.25 2.75 3.25 3.75 4.25 4.75 5.25 SUPPLY VOLTAGE (V)
0.00 2.25 2.75 3.25 3.75 4.25 4.75 5.25 SUPPLY VOLTAGE (V)
POR Delay
10M 1M 100k TIME (s) 10k 1k 100 10 1 1
CIN = 1F COUT = 1F ILOAD = 100A
10 100 1k 10k 100k 1M POR SETTING CAP (pF)
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MIC2213
Micrel
Functional Characteristics
Enable Characteristics
Power-On Reset Characteristics
VOUT2 VOUT1 VEN (1V/div) (2V/div) (2V/div)
VOUT1 (2V/div)
VEN (2V/div)
VOUT2 (1V/div)
Time (100s/div)
POR (1V/div)
CIN = 1F COUT = 1F Ceramic CBYP = 0.01F VIN = 5V
CIN = 1F COUT = 1F Ceramic CSET = 0.01F CBYP = 0.01F VIN = 5V
Time (400s/div)
Load Transient Response (LDO 1)
150mA 100A
Load Transient Response (LDO 2)
300mA
VOUT2 IOUT2 (100mV/div) (200mA/div)
VOUT1 IOUT1 (50mV/div) (100mA/div)
100A
VOUT2 (50mV/div)
VOUT1 (100mV/div)
CIN = 1F COUT = 1F CBYP = 0.01F VIN = VOUT+1V
CIN = 1F COUT = 1F CBYP = 0.01F VIN = VOUT+1V
Time (4s/div)
Time (4s/div)
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Functional Diagram
VIN LDO1 EN OUT1
OUT2 LDO2 Delay SET CBYP SW Reference DRV POR
GND
NGND
MIC2213 Fixed Voltage Block Diagram
VIN LDO1 EN
OUT1 ADJ1
LDO2 Delay SET CBYP SW Reference
OUT2 ADJ2 POR
DRV
GND
NGND
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 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.
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 1A 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.
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MIC2213
Input Capacitor Good bypassing is recommended from input to ground to help improve AC performance. A 1F 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 0.01F, but it can be increased without limit. Output Capacitor Each regulator output requires a 1F ceramic output capacitor for stability. The output capacitor value can be increased to improve transient response, but performance has been optimized for a 1F 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 a X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range.
Micrel
MIC2213
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Micrel
Package Information
0.85 +0.15 --0.05 3.00 BSC. 1.50 BSC. 0.48 typ. 0.01 +0.04 --0.01 0.23 +0.07 --0.05 1 2 3 0.20 dia 3.00 BSC. 5.0
1.60 +0.15 --0.15 0.80 +0.15 --0.15 PIN 1 ID
1.50 BSC.
1
+0.15 2 1.15 --0.15
3
2.30 +0.15 --0.15
0.50 BSC. 0.40 +0.15 --0.05 TOP BOTTOM
SEATING PLANE TERMINAL TIP
0.23 +0.07 --0.05
0.01 +0.04 --0.01
0.50 BSC. TERMINAL TIP ODD TERMINAL SIDE
0.50 BSC.
EVEN TERMINAL SIDE
10-Lead MLFTM (ML)
0.90 -- 4.00 BSC 3.75 BSC 0.70 --
0.00 0.05 0.20 REF
1 2 3 3.75 BSC 4.00 BSC
12 TOP VIEW
SEATING PLANE
0.60 0.24
2.45 2.15
PIN 1 ID 0.20 R.
2.45 2.15
0.50 0.30
0.30 0.18 BOTTOM VIEW
0.65 BSC.
16-Lead MLFTM (ML)
MICREL, INC.
TEL
1849 FORTUNE DRIVE SAN JOSE, CA 95131
FAX
USA
+ 1 (408) 944-0800
+ 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. (c) 2003 Micrel, Incorporated.
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MIC2213

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