MIC2213 Micrel 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 0.01µF OFF OFF VIN VOUT1 VANALOG EN VOUT2 VDIGITAL VCORE ON CBYP POR SW DRV ON 1µF Ceramic Keyboard Backlighting LED SET CDELAY /RST Baseband µProcessor MEMORY GND 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 July 2003 1 MIC2213 MIC2213 Micrel Ordering Information Full Part Number Manufacturing Part Number Voltage* (Vo1/Vo2) Junction Temp. Range Package MIC2213-1.8/2.85BML MIC2213-GNBML 1.8V/2.85V –40°C to +125°C 10-Pin 3×3 MLF™ MIC2213-2.6/2.85BML MIC2213-KNBML* 2.6V/2.85V –40°C to +125°C 10-Pin 3×3 MLF™ MIC2213-Adj/AdjBML MIC2213-AABML Adj/Adj –40°C to +125°C 16-Pin 4×4 MLF™ * 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 MIC2213 2 July 2003 BYP 3 8 POR SW 4 7 DRV SET 5 6 GND VOUT2 13 EN 1 12 POR NC 2 11 DRV BYP 3 10 ADJ ADJ1 4 9 NGND 5 6 7 8 GND 9 VOUT2 14 GND EN 2 15 SET 10 VOUT1 16 SW VIN 1 VOUT1 Pin Configuration VIN Micrel VIN MIC2213 16-Pin 4mm × 4mm MLF™ (ML) 10-Pin 3mm × 3mm MLF™ (ML) (Top View) Pin Description Pin Number MLF-10 (3x3) Pin Number MLF-16 (4x4) Pin Name 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 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. 9 13 VOUT2 Output of Regulator 2: 300mA output current 10 14 VOUT1 Output of Regulator 1: 150mA output current EP EP GND July 2003 Pin Function 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. Ground: Internally connected to the Exposed Pad. Connect externally to ground pin. 3 MIC2213 MIC2213 Micrel 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) .................................................... 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 Typ VIN = VOUT +1V to 5.5V Load Regulation IOUT = 100µA to 150mA (Regulator 1 and 2) –0.3 –0.6 +1.0 +2.0 % % ppm/C 0.02 0.3 0.6 %/V 0.2 1.0 % 1.5 % IOUT = 100µA to 300mA (Regulator 2) Ground Pin Current Units 40 Line Regulation; Note 5 Dropout Voltage; Note 6 Max 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 µA Ground Pin Current in Shutdown VEN ≤ 0.4V Ripple Rejection f = 1kHz; COUT = 1.0µF ceramic; CBYP = 10nF 60 dB f = 20kHz; COUT = 1.0µF ceramic; CBYP = 10nF 40 dB Current Limit 2.0 µA VOUT = 0V (Regulator 1) 150 280 460 mA VOUT = 0V (Regulator 2) 300 450 700 mA TDELAY; Note 7 Sequenced delay time 70 µs Output Voltage Noise COUT =1µF, CBYP =0.01µF, 10Hz to 100kHz 30 µVrms Enable Input Enable Input Voltage Enable Input Current Logic Low (Regulator Shutdown) 0.6 V Logic High (Regulator Enabled) 1.8 V 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 POR Output VTH % High Threshold, % of nominal VOUT2 (Flag OFF) VOL POR Output Logic Low Voltage; IL = 250µA IPOR Flag Leakage Current, Flag OFF MIC2213 4 –1 96 % 0.02 0.1 V 0.01 +1 µA July 2003 MIC2213 Parameter Micrel Conditions Min Typ Max Units 0.2 0.5 0.6 V 0.01 +1 µA 0.6 V DRV Output Voltage Low IDRV = 150mA Leakage Current IDRV = 0mA, VDRV = 5.5V, SW = 0V SW Input Voltage Logic Low (DRV Shutdown) SW Input Current –1 Logic High (DRV Enabled) 1.8 V VIL < 0.6V (DRV Shutdown) –1 0.01 +1 µA VIH > 1.8V (DRV Enabled) –1 0.01 +1 µA 0.75 1.25 1.75 µA SET Input SET Pin Current Source VSET = 0V SET Pin Threshold Voltage POR = 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 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. 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. July 2003 5 MIC2213 MIC2213 Micrel PSRR Output 1 80 PSRR Output 2 80 CBYP = 100nF CBYP = 100nF CBYP = 10nF 40 20 CBYP = 1nF VIN = VOUT + 1 IOUT = 300mA COUT = 1µF 0 0.01 1000 0.1 1 10 100 FREQUENCY (kHz) 1000 Spectral Noise Density Output 1 10E-6 100µA Load 1E-6 100E-9 COUT = 1µF C = 1µF IN CBYP = 0.01µF 10E-9 10 Dropout Characteristics Output 1 Spectral Noise Density Output 2 1k 100 10k 100k FREQUENCY (Hz) 1M Dropout Characteristics Output 2 3 3 2.5 2.5 10E-6 1E-6 100E-9 COUT = 1µF C = 1µF 2 1.5 100µA 150mA 1 0.5 IN OUTPUT (V) OUTPUT (V) 100µA Load 2 100µA 300mA 1.5 1 0.5 CBYP = 0.01µF 200 150 100 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 30 20 10 0 0 20 40 60 80 100 120 140 OUTPUT 1 LOAD CURRENT (mA) 30 20 10 1 2 3 4 5 SUPPLY VOLTAGE (V) 6 Ground Pin Current 60 50 40 30 20 10 0 0 50 100 150 200 250 300 OUTPUT 2 LOAD CURRENT (mA) 6 1mA 50 100µA 40 0µA 30 20 10 Load on both outputs 0 140 160 40 40 100 120 50 Output 1 and 2 with 100µA load 0 0 60 GROUND CURRENT (µA) GROUND CURRENT (µA) 60 MIC2213 50 50 60 80 50 300mA load 250 GROUND CURRENT (µA) 100 60 350 300 1 2 3 4 5 SUPPLY VOLTAGE (V) Ground Current vs. Supply Voltage Dropout Voltage Output 2 Dropout Voltage Output 1 150mA load 0 0 1 2 3 4 5 SUPPLY VOLTAGE (V) 20 40 0 0 1M GROUND PIN CURRENT (µA) DROPOUT VOLTAGE (mV) 150 100 1k 10k 100k FREQUENCY (Hz) -40 -20 0 10E-9 10 DROPOUT VOLTAGE (mV) SPECTRAL NOISE DENSITY (V/root Hz) 0.1 1 10 100 FREQUENCY (kHz) CBYP = 1nF 40 20 VIN = VOUT + 1 IOUT = 150mA COUT = 1µF 0 0.01 CBYP = 10nF 60 PSRR (dB) PSRR (dB) 60 SPECTRAL NOISE DENSITY (V/root Hz) Typical Characteristics TEMPERATURE (°C) July 2003 MIC2213 Micrel Typical Characteristics (cont.) Output Voltage vs. Load Current Output Voltage 1 vs. Temperature 2.870 3.15 2.605 2.865 2.860 3.10 2.600 2.595 2.590 2.585 2.580 0 25 50 75 100 125 150 OUTPUT 1 LOAD CURRENT (mA) 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 2 vs. Temperature 2.85 2.80 2.75 2.70 2.65 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (°C) 2.95 2.90 Enable Voltage Threshold vs. Supply Voltage 1.60 Drive Current = 1mA 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) ENABLE THRESHOLD (V) SWITCH THRESHOLD (V) 100µA load 3.00 2.85 -40 -20 0 20 40 60 80 100120140 TEMPERATURE (°C) 1.20 2.90 100µA load 3.05 Switch Threshold vs. Supply Voltage 2.95 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2.610 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) Output Voltage vs. Load Current 1.40 1.20 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 TIME (µs) 100k 10k 1k 100 CIN = 1µF COUT = 1µF ILOAD = 100µA 10 1 July 2003 1 10 100 1k 10k 100k 1M POR SETTING CAP (pF) 7 MIC2213 MIC2213 Micrel Functional Characteristics Power-On Reset Characteristics VOUT1 (2V/div) VEN (2V/div) VOUT2 VOUT1 VEN (1V/div) (2V/div) (2V/div) Enable Characteristics POR (1V/div) VOUT2 (1V/div) CIN = 1µF COUT = 1µF Ceramic CBYP = 0.01µF VIN = 5V CIN = 1µF COUT = 1µF Ceramic CSET = 0.01µF CBYP = 0.01µF VIN = 5V Time (100µs/div) Time (400µs/div) Load Transient Response (LDO 1) Load Transient Response (LDO 2) 300mA VOUT2 IOUT2 (100mV/div) (200mA/div) 100µA CIN = 1µF COUT = 1µF CBYP = 0.01µF VIN = VOUT+1V VOUT1 (100mV/div) VOUT2 (50mV/div) VOUT1 IOUT1 (50mV/div) (100mA/div) 150mA CIN = 1µF COUT = 1µF CBYP = 0.01µF VIN = VOUT+1V Time (4µs/div) Time (4µs/div) MIC2213 100µA 8 July 2003 MIC2213 Micrel Functional Diagram VIN OUT1 LDO1 EN OUT2 LDO2 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 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. Functional Description 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. July 2003 9 MIC2213 MIC2213 Micrel 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. 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. MIC2213 10 July 2003 MIC2213 Micrel Package Information 0.85 +0.15 —0.05 1.60 +0.15 —0.15 3.00 BSC. 0.80 +0.15 —0.15 1.50 BSC. 0.01 +0.04 —0.01 0.48 typ. PIN 1 ID 0.23 +0.07 —0.05 1 1 1.50 BSC. +0.15 2 1.15 —0.15 2 5.0 3.00 BSC. 3 2.30 +0.15 —0.15 3 0.20 dia 0.50 BSC. 0.40 +0.15 —0.05 TOP SEATING PLANE BOTTOM TERMINAL TIP 0.23 +0.07 —0.05 0.01 +0.04 —0.01 0.50 BSC. 0.50 BSC. TERMINAL TIP ODD TERMINAL SIDE EVEN TERMINAL SIDE 10-Lead MLF™ (ML) 0.90 — 0.00 0.05 4.00 BSC 0.70 — 3.75 BSC 0.20 REF 1 2 3 3.75 BSC 4.00 BSC SEATING PLANE 12° TOP VIEW 0.60 0.24 PIN 1 ID 0.20 R. 2.45 2.15 2.45 2.15 0.50 0.30 0.30 0.18 0.65 BSC. BOTTOM VIEW 16-Lead MLF™ (ML) MICREL, INC. TEL 1849 FORTUNE DRIVE SAN JOSE, CA 95131 + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB USA 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. July 2003 11 MIC2213