MIC5365/6 High Performance Single 150mA LDO General Description Features The MIC5365/6 is an advanced general purpose linear regulator offering high power supply rejection (PSRR) in an ultra-small 1mm x 1mm package. The MIC5366 includes an auto-discharge feature that is activated when the enable pin is low. The MIC5365/6 is capable of sourcing 150mA output current and offers high PSRR making it an ideal solution for any portable electronic application. Ideal for battery powered applications, the MIC5365/6 offers 2% initial accuracy, low dropout voltage (155mV @ 150mA), and low ground current (typically 29µA). The MIC5365/6 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5365/6 is available in several advanced packages including a lead-free (RoHS compliant) 1mm x 1mm Thin ® 2 MLF occupying only 1mm of PCB area, a 75% reduction in board area compared to SC-70 and 2mm x 2mm MLF® packages. It is also availabe in an SC-70-5 package. The MIC5365/6 has an operating junction temperature range of –40°C to 125°C. Data sheets and support documentation can be found on Micrel’s web site at www.micrel.com. • • • • • • • • • • Tiny 1mm x 1mm Thin MLF® and SC-70-5 packages Input voltage range: 2.5V to 5.5V 150mA guaranteed output current Stable with 1µF ceramic output capacitors Low dropout voltage – 155mV @ 150mA Excellent Load/Line Transient Response Low quiescent current – 29µA High PSRR – 70dB Output discharge circuit – MIC5366 High output accuracy – ±2% initial accuracy • Thermal shutdown and current limit protection Applications • • • • Mobile phones Digital cameras GPS, PDAs, PMP, handhelds Portable electronics ___________________________________________________________________________________________________________ Typical Application MIC5365/6-xxYMT VIN 1µF - Proc I/O - Vibrator motor - Rx/Synth VOUT EN 1µF VBAT GND MLF and MicroLeadFrame are registered 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 March 2009 M9999-033109-B Micrel, Inc. MIC5365/6 Block Diagram VIN VOUT LDO EN Reference GND MIC5365 Block Diagram VIN VOUT LDO EN AutoDischarge Reference GND MIC5366 Block Diagram March 2009 2 M9999-033109-B Micrel, Inc. MIC5365/6 Ordering Information Part Number Marking Code Output Voltage Temperature Range Package MIC5365-1.0YMT 5C 1.0V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free ® Pb-Free Lead Finish MIC5365-1.2YMT 54 1.2V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5365-1.5YMT 5F 1.5V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF ® Pb-Free ® Pb-Free MIC5365-1.8YMT 5G 1.8V MIC5365-2.0YMT 5H 2.0V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5365-2.5YMT 5J 2.5V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF ® Pb-Free 4-Pin 1mm x 1mm Thin MLF ® Pb-Free ® Pb-Free MIC5365-2.6YMT MIC5365-2.7YMT 5K 5L 2.6V 2.7V –40°C to +125°C MIC5365-2.8YMT 5M 2.8V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5365-2.85YMT 5N 2.85V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF ® Pb-Free ® Pb-Free MIC5365-2.9YMT 5O 2.9V MIC5365-3.0YMT 5P 3.0V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5365-3.3YMT 5S 3.3V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free MIC5365-1.0YC5 65C 1.0V –40°C to +125°C SC-70-5 Pb-Free MIC5365-1.2YC5 654 1.2V –40°C to +125°C SC-70-5 Pb-Free MIC5365-1.5YC5 65F 1.5V –40°C to +125°C SC-70-5 Pb-Free MIC5365-1.8YC5 65G 1.8V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.0YC5 65H 2.0V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.5YC5 65J 2.5V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.6YC5 65K 2.6V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.7YC5 65L 2.7V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.8YC5 65M 2.8V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.85YC5 65N 2.85V –40°C to +125°C SC-70-5 Pb-Free MIC5365-2.9YC5 65O 2.9V –40°C to +125°C SC-70-5 Pb-Free MIC5365-3.0YC5 65P 3.0V –40°C to +125°C SC-70-5 Pb-Free MIC5365-3.3YC5 65S 3.3V –40°C to +125°C SC-70-5 Pb-Free MIC5366-1.0YMT* 6C 1.0V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free MIC5366-1.2YMT* 64 1.2V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free ® Pb-Free MIC5366-1.5YMT* 6F 1.5V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5366-1.8YMT* 6G 1.8V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF ® Pb-Free 4-Pin 1mm x 1mm Thin MLF ® Pb-Free ® Pb-Free MIC5366-2.0YMT* MIC5366-2.5YMT* 6H 6J 2.0V 2.5V –40°C to +125°C MIC5366-2.6YMT* 6K 2.6V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5366-2.7YMT* 6L 2.7V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF ® Pb-Free ® Pb-Free MIC5366-2.8YMT* 6M 2.8V MIC5366-2.85YMT* 6N 2.85V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF MIC5366-2.9YMT* 6O 2.9V –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF® Pb-Free –40°C to +125°C 4-Pin 1mm x 1mm Thin MLF ® Pb-Free 4-Pin 1mm x 1mm Thin MLF ® Pb-Free MIC5366-3.0YMT* 6P 3.0V MIC5366-3.3YMT* 6S 3.3V MIC5366-1.0YC5* 66C 1.0V –40°C to +125°C SC-70-5 Pb-Free MIC5366-1.2YC5* 664 1.2V –40°C to +125°C SC-70-5 Pb-Free March 2009 –40°C to +125°C 3 M9999-033109-B Micrel, Inc. MIC5365/6 Part Number Marking Code Output Voltage Temperature Range Package Lead Finish MIC5366-1.5YC5* 66F 1.5V –40°C to +125°C SC-70-5 Pb-Free MIC5366-1.8YC5* 66G 1.8V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.0YC5* 66H 2.0V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.5YC5* 66J 2.5V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.6YC5* 66K 2.6V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.7YC5* 66L 2.7V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.8YC5* 66M 2.8V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.85YC5* 66N 2.85V –40°C to +125°C SC-70-5 Pb-Free MIC5366-2.9YC5* 66O 2.9V –40°C to +125°C SC-70-5 Pb-Free MIC5366-3.0YC5* 66P 3.0V –40°C to +125°C SC-70-5 Pb-Free MIC5366-3.3YC5* 66S 3.3V –40°C to +125°C SC-70-5 Pb-Free Notes: 1. Other voltages available. Contact Micrel for details. 2. Under bar symbol ( _ ) may not be to scale. 3. Thin MLF ▲ = Pin 1 identifier. 4. Thin MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. * MIC5366 offers Auto-Discharge function. ® ® March 2009 4 M9999-033109-B Micrel, Inc. MIC5365/6 Pin Configuration VIN EN 4 3 EN GND VIN 1 3 2 Top View 1 2 VOUT GND 4 NC 4-Pin 1mm x 1mm Thin MLF® (MT) Fixed Version 5 VOUT 5-Pin SC-70 (C5) Fixed Version Pin Description Pin Number Pin Name Thin MLF-4 Pin Name SC-70-5 1 VOUT – 1 – VIN Supply Input. 2 GND GND Ground 3 EN EN 4 VIN – 4 – NC 5 – VOUT EP HS Pad NA March 2009 Pin Function Output Voltage. Enable Input: Active High. High = ON; Low = OFF. Do not leave floating. Supply Input. No connect. Not internally connected. Output Voltage. Exposed Heatsink Pad. 5 M9999-033109-B Micrel, Inc. MIC5365/6 Absolute Maximum Ratings(1) Operating Ratings(2) Supply Voltage (VIN) ............................................... 0V to 6V Enable Voltage (VEN).............................................. 0V to VIN Power Dissipation (PD) ........................... Internally Limited(3) Lead Temperature (soldering, 3µsec)........................ 260°C Junction Temperature (TJ) ........................–40°C to +125°C Storage Temperature (Ts) .........................–65°C to +150°C ESD Rating(4) .................................................................. 2kV Supply Voltage (VIN)......................................... 2.5V to 5.5V Enable Voltage (VEN).............................................. 0V to VIN Junction Temperature (TJ) ........................ –40°C to +125°C Junction Thermal Resistance 1x1 Thin MLF-4 (θJA) .......................................250°C/W SC-70-5 (θJA) ................................................256.5°C/W Electrical Characteristics(5) VIN = VEN = VOUT + 1V; CIN = COUT = 1µF; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C to +125°C, unless noted. Parameter Condition Output Voltage Accuracy Line Regulation Load Regulation Dropout Voltage (6) (7) Min Typ Max Units Variation from nominal VOUT –2.0 +2.0 % Variation from nominal VOUT; –40°C to +125°C –3.0 +3.0 % VIN = VOUT +1V to 5.5V; IOUT = 100µA 0.02 0.3 % IOUT = 100µA to 150mA 0.3 1 % IOUT = 50mA; VOUT ≥ 2.8V 55 110 mV IOUT = 150mA; VOUT ≥ 2.8V 155 310 mV IOUT = 50mA; VOUT < 2.8V 60 135 mV IOUT = 150mA; VOUT < 2.8V 180 380 mV IOUT = 0mA 29 39 µA Ground Pin Current in Shutdown VEN ≤ 0.2V 0.05 1 µA Ripple Rejection f = up to 1kHz; COUT = 1µF 80 dB f = 1kHz – 10kHz; COUT = 1µF 65 dB Ground Pin Current (8) Current Limit VOUT = 0V Output Voltage Noise COUT = 1µF, 10Hz to 100kHz 200 200 325 550 µVRMS mA Auto-Discharge NFET Resistance MIC5366 Only; VEN = 0V; VIN = 3.6V; IOUT = –3mA 30 Ω Enable Input Enable Input Voltage Logic Low 0.2 Logic High Enable Input Current Turn-on Time V V 1.2 VIL ≤ 0.2V 0.01 1 µA VIH ≥ 1.2V 0.01 1 µA 50 125 µs COUT = 1µF; IOUT = 150mA Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 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. 4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF. 5. Specification for packaged product only. 6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are covered by the thermal regulation specification. 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 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V. 8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin current. March 2009 6 M9999-033109-B Micrel, Inc. MIC5365/6 Typical Characteristics Power Supply Rejection Ratio Dropout Voltage vs. Load Current 160 200 140 100µA 120 Dropout Voltage vs. Temperature VOUT = 3.3V CIN = C OUT = 1µF 150mA 150 100 75mA 60 38 1M Ground Current vs. Supply Voltage 100µA 28 26 24 VEN = V IN VOUT = 3.3V CIN = C OUT = 1µF 22 3.0 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 40 5.5 30 32 28 26 24 28 02 VIN = V EN = V OUT + 1V VOUT = 3.3V CIN = C OUT = 1µF 3.40 3.2 55 07 5 100 125 150 LOAD CURRENT (mA) Output Voltage vs. Supply Voltage 3.4 3.3 3.3 150mA 3.2 2.8 VIN = V EN = V OUT + 1V VOUT = 3.3V CIN = C OUT = 1µF COUT = 1µF/10V 3.20 3.15 2.7 VEN = V IN VOUT = 3.3V CIN = C OUT = 1µF 2.6 20 40 60 80 100 120 140 160 LOAD CURRENT (mA) Current Limit vs. Supply Voltage 2.5 2.5 1 300 0.1 3.0 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 3.1 5.5 VIN = V OUT + 1V VOUT = 3.3V CIN = C OUT = 1µF IOUT = 150m A 3.0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) Output Noise Spectral Density 10 350 Output Voltage vs. Temperature 3.4 2.9 3.25 VIN = V EN = V OUT + 1V 50mA 3.0 3.30 100µA VOUT = 3.3V 22 CIN = C OUT = 1µF 20 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) 3.5 1mA 3.1 3.35 Ground Current vs. Temperature 38 150mA 36 34 100mA 32 50mA 30 Output Voltage vs. Load Current 3.50 0.01 VIN = V EN = 4.5V 250 200 3.0 Ground Current vs. Load Current 0 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) 34 3.45 400 55 07 5 100 125 150 LOAD CURRENT (mA) 36 30 3.10 0 10mA 38 32 20 2.5 0 02 40 150mA 34 VOUT = 3.3V CIN = C OUT = 1µF 20 100 1k 10k 100k FREQUENCY (Hz) 36 50mA 50 40 VIN = VOUT +1V VOUT = 2.5V COUT = 1µF 0 10 100mA 100 80 150mA VOUT = 2.8V CIN = C OUT = 1µF VOUT = 3.3V CIN = C OUT = 1µF 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) March 2009 Noise (10Hz to 100kHz) = 198.19µV 5.5 0.001 10 100 RMS 1k 10k 100k 1M 10M FREQUENCY (Hz) 7 M9999-033109-B Micrel, Inc. MIC5365/6 Functional Characteristics March 2009 8 M9999-033109-B Micrel, Inc. MIC5365/6 Application Information Enable/Shutdown The MIC5365/6 comes with an active-high enable pin that allows the regulator to be disabled. Forcing the enable pin low disables the regulator and sends it into a “zero” off-mode-current state. In this state, current consumed by the regulator goes nearly to zero. Forcing the enable pin high enables the output voltage. The active-high enable pin uses CMOS technology and the enable pin cannot be left floating; a floating enable pin may cause an indeterminate state on the output. MIC5365 and MIC5366 are Low noise 150mA LDOs. The MIC5366 includes an auto-discharge circuit that is switched on when the regulator is disabled through the Enable pin. The MIC5365/6 regulator is fully protected from damage due to fault conditions, offering linear current limiting and thermal shutdown. Input Capacitor The MIC5365/6 is a high-performance, high bandwidth device. An input capacitor of 1µF is required from the input to ground to provide stability. Low-ESR ceramic capacitors provide optimal performance at a minimum of space. Additional high-frequency capacitors, such as small-valued NPO dielectric-type capacitors, help filter out high-frequency noise and are good practice in any RF-based circuit. X5R or X7R dielectrics are recommended for the input capacitor. Y5V dielectrics lose most of their capacitance over temperature and are therefore, not recommended. Thermal Considerations The MIC5365/6 is designed to provide 150mA of continuous current in a very small package. Maximum ambient operating temperature can be calculated based on the output current and the voltage drop across the part. For example if the input voltage is 3.6V, the output voltage is 2.8V, and the output current = 150mA. The actual power dissipation of the regulator circuit can be determined using the equation: PD = (VIN – VOUT1) I OUT + VIN IGND Because this device is CMOS and the ground current is typically <100µA over the load range, the power dissipation contributed by the ground current is < 1% and can be ignored for this calculation. PD = (3.6V – 2.8V) × 150mA Output Capacitor The MIC5365/6 requires an output capacitor of 1µF or greater to maintain stability. The design is optimized for use with low-ESR ceramic chip capacitors. High ESR capacitors are not recommended because they may cause high frequency oscillation. The output capacitor can be increased, but performance has been optimized for a 1µF ceramic output capacitor and does not improve significantly with larger capacitance. 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 an X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. PD = 0.120W To determine the maximum ambient operating temperature of the package, use the junction-to-ambient thermal resistance of the device and the following basic equation: ⎛ TJ(max) − TA PD(max) = ⎜⎜ θ JA ⎝ TJ(max) = 125°C, the maximum junction temperature of the die, θJA thermal resistance = 250°C/W for the YMT package and 256.5°C/W for the SC-70-5 package. Substituting PD for PD(max) and solving for the ambient operating temperature will give the maximum operating conditions for the regulator circuit. The junction-toambient thermal resistance for the minimum footprint is 250°C/W. The maximum power dissipation must not be exceeded for proper operation. No-Load Stability Unlike many other voltage regulators, the MIC5365/6 will remain stable and in regulation with no load. This is especially important in CMOS RAM keep-alive applications. March 2009 ⎞ ⎟ ⎟ ⎠ 9 M9999-033109-B Micrel, Inc. MIC5365/6 For example, when operating the MIC5365-2.8YMT at an input voltage of 3.6V and 150mA load with a minimum footprint layout, the maximum ambient operating temperature TA can be determined as follows: 0.120W = (125°C – TA)/(250°C/W) TA = 95°C March 2009 Therefore the maximum ambient operating temperature of 95°C is allowed in a 1mm x 1mm MLF® package. For a full discussion of heat sinking and thermal effects on voltage regulators, refer to the “Regulator Thermals” section of Micrel’s Designing with Low-Dropout Voltage Regulators handbook. This information can be found on Micrel's website at: http://www.micrel.com/_PDF/other/LDOBk_ds.pdf 10 M9999-033109-B Micrel, Inc. MIC5365/6 U1 MIC5365/6-xxYMT J1 VIN 4 2 VIN GND VOUT EN C1 1µF 10V J3 VOUT 1 3 J5 EN C2 1µF 10V J2 GND J4 GND Bill of Materials Item Part Number C1, C2 GRM155R61A105KE15D U1 MIC5365/6-xxYMT Manufacturer (1) Murata Description Qty. Capacitor, 1µF Ceramic, 10V, X7R, Size 0402 2 High Performance Single 150mA LDO 1 Micrel, Inc.(3) Notes: 1. Murata: www.murata.com 2. Micrel, Inc.: www.micrel.com March 2009 11 M9999-033109-B Micrel, Inc. MIC5365/6 PCB Layout Recommendations (1mm x 1mm Thin MLF®) Top Layer Bottom Layer March 2009 12 M9999-033109-B Micrel, Inc. MIC5365/6 PCB Layout Recommendations (SC-70-5) Top Layer Bottom Layer March 2009 13 M9999-033109-B Micrel, Inc. MIC5365/6 Package Information 4-Pin 1mm x 1mm Thin MLF® (MT) 5-Pin SC-70 (C5) March 2009 14 M9999-033109-B Micrel, Inc. MIC5365/6 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 The 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. © 2008 Micrel, Incorporated. March 2009 15 M9999-033109-B