MIC2219 Micrel, Inc. MIC2219 Dynamically Adjustable Dual µCap LDO General Description Features The MIC2219 is a dual µCap low dropout regulator. The first regulator is capable of sourcing 150mA, while the second regulator can source up to 300mA. Ideal for battery operated applications, the MIC2219 offers 1% accuracy, extremely low dropout voltage (80mV @ 100mA), and extremely low ground current, only 48µA total. Equipped with TTL logic compatible enable pins, the MIC2219 can be put into a zero-off-mode current state, drawing no current when disabled. Separate enable pins allow individual control of each output voltage. The additional feature incorporated in the MIC2219 is bringing out the feedback nodes to two external pins, allowing for dynamic adjustment of the LDO output voltages. The MIC2219 is a µCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost. The MIC2219 is available in fixed output voltages in the 10-pin 3mm × 3mm MLF™ leadless package. • Input voltage range: 2.25V to 5.5V • Stable with ceramic output capacitor • 2 LDO outputs Output 1 - 150mA output current Output 2 - 300mA output current • Feedback pins externally accessible • Low dropout voltage of 80mV @ 100mA • Ultra-low quiescent current of 48µA total (24µA/LDO) • High output accuracy: +1.0% initial accuracy +2.0% over temperature • Thermal shutdown protection • Current limit protection • Tiny 10-pin 3mm × 3mm MLF™ package Applications • • • • Cellular phones Wireless modems PDAs LEDs Typical Application MIC2219-xxBML OFF ON OFF ON 0.01µF VIN VOUT1 EN1 VOUT2 EN2 FB1 CBYP FB2 LEDs ×10 1µF Ceramic 1µF Vibrator Motor GND MIC2219 Typical Cell Phone Application MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com April 2005 1 M9999-042105 MIC2219 Micrel, Inc. Ordering Information Part Number Full Part Number MIC2219-3.0/3.3BML Voltage* Junction Standard Pb-Free (Vo1/Vo2) Temp. Range Package MIC2219-PSBML MIC2219-PSYML 3.0V/3.3V –40°C to +125°C 10-Pin 3×3 MLF™ *For other output voltage options, contact Micrel marketing. Pin Configuration VIN 1 10 VOUT1 EN1 2 9 VOUT2 EN2 3 8 NC CBYP 4 FB1 5 Voltage Adj. 1.5 1.6 1.8 1.85 1.9 2.0 7 FB2 6 GND 10-Pin 3mm × 3mm MLF™ (ML) (Top View) M9999-042105 Code A F W G D Y 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 2 April 2005 MIC2219 Micrel, Inc. Pin Description Pin Number Pin Name 1 VIN Supply Input: (VIN1 and VIN2 are internally tied together.) 2 EN1 Enable Input to Regulator 1: Enables regulator 1 output. Active high input. High = on, low = off. Do not leave floating. 3 EN2 Enable Input to Regulator 2: Enables regulator 2 output. Active high input. High = on, low = off. Do not leave floating. 4 CBYP 5 FB1 Feedback Node (OUT1). Connected to internal feedback resistor divider network. 6 GND Ground: Connect externally to Exposed Pad. 7 FB2 Feedback Node (OUT2). Connected to internal feedback resistor divider network. 8 N/C No Connection. 9 VOUT2 Output of Regulator 2: 300mA output current. 10 VOUT1 Output of Regulator 1: 150mA output current. EP GND April 2005 Pin Function Reference Bypass: Connect external 0.01µF to GND to reduce output noise. May be left open. Ground: Internally connected to the Exposed Pad. Connect externally to pin 6. 3 M9999-042105 MIC2219 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 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 MLF™-10 (θJC) 1" square 2 oz. copper ................ 2°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 = 1kHz; COUT = 1.0µF ceramic; CBYP = 10nF 40 dB Current Limit Output Voltage Noise 1.0 µA VOUT = 0V (regulator 1) 150 280 460 mA VOUT = 0V (regulator 2) 300 450 700 mA COUT =1µF, CBYP =0.01µF, 10Hz to 100kHz 30 µVrms Resistance value, output1, VOUT to FB1 830 kΩ Resistance value, output1, FB1 to GND 580 kΩ Resistance value, output2, VOUT to FB2 972 kΩ Resistance value, output2, FB2 to GND 580 kΩ Feedback Inputs FB1 FB2 Enable Input Enable Input Voltage Enable Input Current Logic low (regulator shutdown) 0.6 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 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. M9999-042105 V 4 April 2005 MIC2219 Note 6. Micrel, Inc. 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. April 2005 5 M9999-042105 MIC2219 Micrel, Inc. 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 10k 100k 1M 100 1k FREQUENCY (Hz) 1k 10k 100k 0.1 FREQUENCY (Hz) 1M 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 10E-6 1k 100 10k 100k FREQUENCY (Hz) 1M Dropout Characteristics Output 2 3.5 3.5 3.0 Load = 100µA 3.0 Load = 100µA 100E-9 COUT = 1µF C = 1µF IN CBYP = 0.01µF 10E-9 10 100 50 0.5 1 2 3 4 5 INPUT VOLTAGE (V) 300 300mA Load 250 200 150 100 50 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 40 30 20 10 0 0 20 40 60 80 100 120 140 OUTPUT 1 LOAD CURRENT (mA) M9999-042105 1.5 1.0 0.5 60 50 40 30 20 10 0 0 50 100 150 200 250 300 OUTPUT 2 LOAD CURRENT (mA) 6 1 2 3 4 5 INPUT VOLTAGE (V) 6 Output 1 and 2 with 100µA Load 40 30 20 10 0 0 1 2 3 4 5 SUPPLY VOLTAGE (V) 6 Ground Pin Current 60 50 Load = 300mA 2.0 Ground Current vs. Supply Voltage 60 GROUND CURRENT (µA) 50 2.5 0 0 6 350 60 GROUND CURRENT (µA) 1.0 Dropout Voltage Output 2 Dropout Voltage Output 1 150mA Load 1.5 0 0 1M Load = 150mA 2.0 GROUND PIN CURRENT (µA) DROPOUT VOLTAGE (mV) 150 100 1k 10k 100k FREQUENCY (Hz) 2.5 GROUND CURRENT (µA) 1E-6 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 100µA Load DROPOUT VOLTAGE (mV) SPECTRAL NOISE DENSITY (V/root Hz) CBYP = 1nF 40 20 VIN = VOUT + 1 IOUT = 150mA COUT = 1µF 0 10 CBYP = 10nF 60 PSRR (dB) PSRR (dB) 60 SPECTRAL NOISE DENSITY (V/root Hz) Typical Characteristics 1mA 50 100µA 40 0µA 30 20 10 Load on both outputs 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) April 2005 MIC2219 Micrel, Inc. Typical Characteristics (cont.) 30 LDO1 20 15 10 2.94 2.92 2.90 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) April 2005 Output Voltage vs. Load Current OUTPUT VOLTAGE (V) 3.303 3.001 3.000 2.999 2.998 2.997 2.996 2.995 3.302 3.301 3.300 3.299 3.298 3.297 3.296 0 25 50 75 100 125 150 OUTPUT 1 LOAD CURRENT (mA) 3.295 Output Voltage 2 vs. Temperature Enable Voltage Threshold vs. Supply Voltage 3.32 3.30 3.28 3.26 3.24 3.22 3.20 0 50 100 150 200 250 300 OUTPUT 2 LOAD CURRENT (mA) 1.60 3.40 3.38 100µA load 3.36 3.34 -60 -40 2.98 2.96 Both LDOs Active LDO2 = 300mA Output Current LDO1 Varied from 0 to Full Load 10 3.002 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 3.02 3.00 20 3.304 Output Voltage 1 vs. Temperature 3.10 3.08 100µA load 3.06 3.04 30 0 0 50 100 150 OUTPUT 1 LOAD CURRENT (mA) ENABLE THRESHOLD (V) 0 0 50 100 150 200 250 300 OUTPUT 2 LOAD CURRENT (mA) Both Enabled 40 3.003 TEMPERATURE (°C) 7 120 140 10 Both LDOs Active LDO1 = 150mA Output Current LDO2 Varied from 0 to Full Load 5 LDO2 Only LDO1 Disabled (VEN1 = LOW) 100 20 10 60 80 30 OUTPUT VOLTAGE (V) GROUND CURRENT (µA) Both Enabled 40 15 50 Output Voltage vs. Load Current Ground Current vs. Output Current 50 20 0 0 50 100 150 200 250 300 OUTPUT 2 LOAD CURRENT (mA) 0 0 50 100 150 OUTPUT 1 LOAD CURRENT (mA) 60 LDO2 20 40 5 LDO1 Only LDO2 Disabled (VEN2 = LOW) 25 Ground Current vs. Output Current 60 30 -20 0 25 Ground Current vs. Output Current 35 GROUND CURRENT (µA) Ground Current vs. Output Current GROUND CURRENT (µA) GROUND CURRENT (µA) 35 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 3.25 3.75 4.25 4.75 5.25 SUPPLY VOLTAGE (V) M9999-042105 MIC2219 Micrel, Inc. Functional Characteristics Load Transient Response (LDO 1) Enable Characteristics CIN = 1µF COUT = 1µF CBYP = 10nF VIN = 4.2V 100µA CIN = 1µF COUT = 1µF CBYP = 0.01µF VIN = VOUT+1V VOUT2 (50mV/div) OUTPUTT1 (1V/div) ENABLE1 (1V/div) VOUT1 IOUT1 (50mV/div) (100mA/div) 150mA Time (4µs/div) Time (100µs/div) Load Transient Response (LDO 2) VOUT1 (100mV/div) VOUT2 IOUT2 (100mV/div) (200mA/div) 300mA 100µA CIN = 1µF COUT = 1µF CBYP = 0.01µF VIN = VOUT+1V Time (4µs/div) M9999-042105 8 April 2005 MIC2219 Micrel, Inc. Functional Diagram OUT1 VIN LDO1 EN1 FB1 LDO2 OUT2 EN2 CBYP FB2 Reference GND MIC2219 Fixed Voltage Block Diagram Functional Description 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 an X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. The MIC2219 is a high performance, low quiescent current power management IC consisting of two µCap low-dropout regulators. 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. Enable 1 and 2 The enable inputs allow for logic control of both output voltages with individual enable inputs. The enable input is active high, requiring 1.8V for guaranteed operation. The enable input is CMOS logic and cannot by left floating. 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 MIC2219 can be bypassed with a capacitor to ground to reduce output noise and April 2005 9 M9999-042105 MIC2219 Micrel, Inc. Package Information DIMENSIONS: mm 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. 2 2 5.0 3.00 BSC. 3 1.15 +0.15 –0.15 2.30 +0.15 –0.15 3 0.20 dia 0.50 BSC. 0.40 +0.15 –0.05 TOP SEATING PLANE TERMINAL TIP BOTTOM 0.23 +0.07 –0.05 0.50 BSC. 0.01 +0.04 –0.01 0.50 BSC. TERMINAL TIP ODD TERMINAL SIDE EVEN TERMINAL SIDE 10-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, Incorporated. M9999-042105 10 April 2005