MIC5200-3.3BMMTR

MIC5200 Micrel, Inc. MIC5200 100mA Low-Dropout Regulator General Description Features The MIC5200 is an efficient linear voltage regulator with very low dropout voltage (typically 17mV at light loads and 200mV at 100mA), and very low ground current (1mA at 100mA output), offering better than 1% initial accuracy with a logic compatible ON/OFF switching input. Designed especially for hand-held battery powered devices, the MIC5200 is switched by a CMOS or TTL compatible logic signal. The ENABLE control may be tied directly to VIN if unneeded. When disabled, power consumption drops nearly to zero. The ground current of the MIC5200 increases only slightly in dropout, further prolonging battery life. Key MIC5200 features include protection against reversed battery, current limiting, and over-temperature shutdown. • • • • • • • • • • • The MIC5200 is available in several fixed voltages and accuracy configurations. Other options are available; contact • • • • • • • High output voltage accuracy Variety of output voltages Guaranteed 100mA output Low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Current and thermal limiting Zero OFF mode current Logic-controlled electronic shutdown Available in 8-lead SOIC, MM8™ 8-lead MSOP, and SOT-223 packages Applications Micrel for details. Cellular Telephones Laptop, Notebook, and Palmtop Computers Battery Powered Equipment PCMCIA VCC and VPP Regulation/Switching Bar Code Scanners SMPS Post-Regulator/ DC to DC Modules High Efficiency Linear Power Supplies Typical Application MIC5200-3.3 Output 1µF Enable Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com M9999-040805 1 April 2005 MIC5200 Micrel, Inc. Ordering Information Part Number Voltage Accuracy Junction Temp. Range* Package Standard Pb-Free MIC5200-3.0BM MIC5200-3.0YM 3.0 1% -40°C to +125°C 8-Pin SOIC MIC5200-3.3BM MIC5200-3.3YM 3.3 1% -40°C to +125°C 8-Pin SOIC MIC5200-4.8BM MIC5200-4.8YM 4.8 1% -40°C to +125°C 8-Pin SOIC MIC5200-5.0BM MIC5200-5.0YM 5.0 1% -40°C to +125°C 8-Pin SOIC MIC5200-3.3BMM MIC5200-3.3YMM 3.3 1% -40°C to +125°C 8-Pin MSOP MIC5200-5.0BMM MIC5200-5.0YMM 5.0 1% -40°C to +125°C 8-Pin MSOP MIC5200-3.0BS MIC5200-3.0YS 3.0 1% -40°C to +125°C 3-lead SOT-223 MIC5200-3.3BS MIC5200-3.3YS 3.3 1% -40°C to +125°C 3-lead SOT-223 MIC5200-4.8BS MIC5200-4.8YS 4.8 1% -40°C to +125°C 3-lead SOT-223 MIC5200-5.0BS MIC5200-5.0YS 5.0 1% -40°C to +125°C 3-lead SOT-223 * Other voltage options available. Contact Micrel Marketing for information. Pin Configuration OUT OUT NC GND 1 IN 2 3 GND OUT IN IN NC EN MIC5200-x.xBM (SOIC-8) MIC5200-x.xBM (MSOP-8) MIC5200-x.xBS (SOT-223) EN may be tied directly to VIN Pin Description Pin Number SOT-223 Pin Number SO-8, MSOP-8 Pin Name 3 1, 2 OUT 3, 6 NC 4 GND 5 EN Enable/Shutdown (Input): TTL compatible input. High = enabled; low = shutdown. 7, 8 IN Supply Input: Pins 7 and 8 must be extenally connected together. 2, TAB 1 April 2005 Pin Function Output: Pins 1 and 2 must be externally connected together. (not internally connected): Connect to ground plane for lowest thermal resistance. Ground: Ground pin and TAB are internally connected. 2 M9999-040805 MIC5200 Micrel, Inc. Absolute Maximum Ratings Recommended Operating Conditions Input Voltage ................................................................2.5V to 26V Operating Junction Temperature Range.............. –40°C to +125°C Enable Input Voltage .....................................................–20V to VIN Power Dissipation ................................................ Internally Limited Lead Temperature (soldering, 5 sec.) ....................................260°C Operating Junction Temperature Range.............. –40°C to +125°C Input Supply Voltage .................................................–20V to +60V Enable Input Voltage .................................................–20V to +60V Thermal Characteristics SOT-223 (θJC) ..................................................................... 15°C/W SO-8 (θJA) ......................................................................See Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device beyond its specified Operating Ratings. Electrical Characteristics Limits in standard typeface are for TJ = 25°C and limits in boldface apply over the junction temperature range of –40°C to +125°C. Unless otherwise specified, VIN = VOUT + 1V, IL = 1mA, CL = 3.3µF, and VENABLE ≥ 2.0V Symbol Parameter Conditions Min VO Output Voltage Accuracy Variation from specified VOUT ∆VO ∆T Output Voltage Temperature Coef. (Note 2) ∆VO VIN Line Regulation ∆VO VOUT Typical –1 –2 Max Units 1 2 % 40 150 VIN = VOUT + 1 V to 26V 0.004 0.10 0.40 % Load Regulation IL = 0.1mA to 100mA (Note 3) 0.04 0.16 0.30 % VIN – VO Dropout Voltage (Note 4) IL = 100µA IL = 20mA IL = 30mA IL = 50mA IL = 100mA 17 130 150 190 230 350 IGND Quiescent Current VENABLE ≤ 0.7V (Shutdown) 0.01 10 IGND Ground Pin Current VENABLE ≥ 2.0V, IL = 100µA IL = 20mA IL = 30mA IL = 50mA IL = 100mA 130 270 330 500 1000 PSRR Ripple Rejection IGNDDO Ground Pin Current at Dropout ILIMIT Current Limit VOUT = 0V ∆VO ∆PD Thermal Regulation (Note 6) en Output Noise mV µA 350 270 100 µA 1500 70 VIN = 0.5V less than specified VOUT IL = 100µA (Note 5) ppm/°C dB 330 µA 250 mA 0.05 %/W 100 µV ENABLE Input VIL IIL IIH M9999-040805 Input Voltage Level Logic Low Logic High ENABLE Input Current OFF ON 2.0 VIL ≤ 0.7V VIH ≥ 2.0V 0.01 15 3 0.7 V 1 50 µA April 2005 MIC5200 Micrel, Inc. Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ (MAX), the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: P(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. The θJC of the MIC5200-xxBS is 15°C/W and θJA for the MIC5200BM is 160°C/W mounted on a PC board (see “Thermal Considerations” section for further details). Note 2: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 3: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 100mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 4: 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. Note 5: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load current plus the ground pin current. Note 6: Thermal regulation is defined as the change in output voltage at a time t after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 100mA load pulse at VIN = 26V for t = 10ms. April 2005 4 M9999-040805 MIC5200 Micrel, Inc. Typical Characteristics DROPOUT VOLTAGE (V) 0.1 0.01 Ground Current vs. Temperature GROUND CURRENT (mA) 0.30 ILOAD = 100µA CIN = 2.2µF COUT = 4.7µF 0.25 0.20 3.4 3.3 3.2 3 DEV IC ES : HI / AVG / LO 3.1 CURVES APPLICABLE AT 100µA AND 100mA 3.0 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) M9999-040805 OUTPUT CURRENT (mA) OUTPUT VOLTAGE (V) CIN = 2.2µF COUT = 4.7µF 0.4 IL = 1mA 0.2 0 1.4 1.3 2 4 6 8 SUPPLY VOLTAGE (V) Ground Current vs. Temperature ILOAD = 100mA CIN = 2.2µF COUT = 4.7µF 1.1 300 280 260 240 220 200 180 160 140 0 50 100 TEMPERATURE (°C) 150 1.5 1.0 IL = 100µA,1mA 0.5 0 2 4 6 8 INPUT VOLTAGE (V) VOUT = 3.3V VOUT = 0V (SHORT CIRCUIT) 120 100 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) 10 Output Voltage vs. Output Current 3.0 CIN = 2.2µF COUT = 4.7µF 2.5 2.0 1.5 1.0 0.5 100 0.1 0.2 OUTPUT CURRENT (A) 0.3 Thermal Regulation (3.3V Version) 50 0 CL = 4.7 µF 200 -50 100 0 -100 -5 Output Current vs. Temperature 5 2.0 0.0 0.0 10 1.2 1.0 -50 Output Voltage vs. Temp. (3.3V Version) 3.5 0.6 1.5 0.15 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) 3.6 0.8 0.0 0.1 1 10 100 OUTPUT CURRENT (mA) IL = 100mA 1.0 IL = 100mA 2.5 3.5 1.4 1.2 3.0 0.0 Ground Current vs. Supply Voltage 1.6 GROUND CURRENT (mA) GROUND CURRENT (mA) 1 IL = 1mA 0.0 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) 0.1 1 10 100 1000 OUTPUT CURRENT (mA) Ground Current vs. Output Current 10 0.1 OUTPUT VOLTAGE (V) 0 0.01 0.2 ∆ OUTPUT (mV) 50 IL = 100mA LOAD (mA) 100 0.3 Dropout Characteristics 3.5 MIN. INPUT VOLTAGE (V) 150 GROUND CURRENT (mA) DROPOUT VOLTAGE (mV) 200 Dropout Voltage vs. Temperature 0.4 OUTPUT VOLTAGE (V) Dropout Voltage vs. Output Current 250 3.30 3.29 3.28 3.27 3.26 3.25 0 5 10 15 20 25 30 35 TIME (ms) Minimum Input Voltage vs. Temperature CIN = 2.2µF COUT = 4.7µF ILOAD = 1mA 3.24 3.23 3.22 3.21 3.20 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) April 2005 Micrel, Inc. 1 2 3 4 5 6 INPUT VOLTAGE (V) 100 0 -2 Supply Current vs. Supply Voltage (3.3V Version) 80 60 0 ENABLE (V) 30 RL = 66Ω 20 10 1000 100 1 2 3 4 5 6 SUPPLY VOLTAGE (V) Output Impedance IL = 100µA 10 IL = 1mA 1 0.1 0.01 FREQUENCY (Hz) 1x106 100x103 10x103 100x100 10x100 1x100 IL = 100mA INPUT (V) 0.2 0.4 TIME (ms) 0.6 CL = 4.7 µF IL = 1mA 2 0 25 0 Enable Current Threshold vs. Temperature CIN = 2.2µF COUT = 4.7µF 20 VE N = 5V 10 5 0 VE N = 2V -5 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) 6 10 20 TIME (ms) 30 40 Line Transient CL = 10 µF IL = 1mA 5 0 -5 8 6 4 0.1 0.2 0.3 0.4 0.5 0.6 TIME (ms) Enable Transient (3.3V Version) 5 4 3 2 1 0 -1 4 CL = 4.7 µF IL = 100mA 2 0 -2 -50 50 100 150 200 250 300 TIME (µs) 15 0 2 -0.1 0 0.8 Enable Transient (3.3V Version) 5 4 3 2 1 0 -1 4 30 0 -10 10 4 35 100 15 6 -2 -50 7 ENABLE CURRENT (µA) 0 200 10 -5 0 CL = 47µF -20 300 -30 ENABLE (V) OUTPUT (V) Supply Current vs. Supply Voltage (3.3V Version) 40 April 2005 8 CL = 1 µF IL = 1mA 5 2 -0.2 0 1 2 3 4 5 6 7 8 9 10 SUPPLY VOLTAGE (V) 50 0.001 2 4 6 TIME (ms) 0 -10 Line Transient 10 INPUT (V) RL = 33Ω 20 0 0 -10 8 40 SUPPLY CURRENT (mA) 200 7 100 60 -20 -30 300 ∆ OUTPUT (mV) 0 OUTPUT (mA) ∆ OUTPUT (mV) 50 CL = 4.7µF ∆ OUTPUT (mV) CIN = 2.2µF COUT = 4.7µF VOUT = 3.3V 100 0 -10 Load Transient 20 10 OUTPUT (V) 150 Load Transient 20 10 1.6 ENABLE VOLTAGE (V) 200 0 OUTPUT IMPEDANCE (Ω) OUTPUT (mA) ∆ OUTPUT (mV) 250 120 SUPPLY CURRENT (mA) Short Circuit Current vs. Input Voltage 300 1x103 SHORT CIRCUIT CURRENT (mA) MIC5200 1.4 1.2 0 50 100 150 200 250 300 TIME (µs) Enable Voltage Threshold vs. Temperature CIN = 2.2µF COUT = 4.7µF 1 0.8 ON OFF 0.6 0.4 -60 -30 0 30 60 90 120 150 TEMPERATURE (°C) M9999-040805 MIC5200 Micrel, Inc. M9999-040805 7 IL = 100mA 60 40 1x106 100x103 10x103 0 1x103 20 100x100 FREQUENCY (Hz) 1x106 0 10x103 20 Ripple vs. Frequency 80 10x100 40 100x103 FREQUENCY (Hz) 1x106 100x103 10x103 10x100 0 1x103 20 60 1x103 40 IL = 1mA 100x100 60 100 80 10x100 IL = 100µA Ripple vs. Frequency RIPPLE VOLTAGE (dB) 100 RIPPLE VOLTAGE (dB) 80 100x100 RIPPLE VOLTAGE (dB) 100 Ripple vs. Frequency FREQUENCY (Hz) April 2005 MIC5200 Micrel, Inc. Applications Information Thermal Considerations Part I. Layout External Capacitors The MIC5200-xxBM (8-pin surface mount package) has the following thermal characteristics when mounted on a single layer copper-clad printed circuit board. A 1µF capacitor is recommended between the MIC5200 output and ground to prevent oscillations due to instability. Larger values serve to improve the regulator’s transient response. Most types of tantalum or aluminum electrolytics will be adequate; film types will work, but are costly and therefore not recommended. Many aluminum electrolytics have electrolytes that freeze at about –30°C, so solid tantalum capacitors are recommended for operation below –25°C. The important parameters of the capacitor are an effective series resistance of about 5Ω or less and a resonant frequency above 500kHz. The value of this capacitor may be increased without limit. PC Board Dielectric FR4 Ceramic θJA 160°C/W 120°C/W Multi-layer boards having a ground plane, wide traces near the pads, and large supply bus lines provide better thermal conductivity. The “worst case” value of 160°C/W assumes no ground plane, minimum trace widths, and a FR4 material board. At lower values of output current, less output capacitance is required for output stability. The capacitor can be reduced to 0.47µF for current below 10mA or 0.33µF for currents below 1 mA. A 1µF capacitor should be placed from the MIC5200 input to ground if there is more than 10 inches of wire between the input and the AC filter capacitor or if a battery is used as the input. Part II. Nominal Power Dissipation and Die Temperature The MIC5200-xxBM at a 25°C ambient temperature will operate reliably at up to 625mW power dissipation when mounted in the “worst case” manner described above. At an ambient temperature of 55°C, the device may safely dissipate 440mW. These power levels are equivalent to a die temperature of 125°C, the recommended maximum temperature for nonmilitary grade silicon integrated circuits. The MIC5200 will remain stable and in regulation with no load in addition to the internal voltage divider, unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications. For MIC5200-xxBS (SOT-223 package) heat sink characteristics, please refer to Micrel Application Hint 17, “Calculating P.C. Board Heat Sink Area for Surface Mount Packages”. When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground. ENABLE Input 50 mil The MIC5200 features nearly zero OFF mode current. When the ENABLE input is held below 0.7V, all internal circuitry is powered off. Pulling this pin high (over 2.0V) re-enables the device and allows operation. The ENABLE pin requires a small amount of current, typically 15µA. While the logic threshold is TTL/CMOS compatible, ENABLE may be pulled as high as 30V, independent of the voltage on VIN. 150 mil 245 mil 30 mil 50 mil Minimum recommended board pad size, SO-8. April 2005 8 M9999-040805 MIC5200 Micrel, Inc. Package Information 8-Pin SOIC (M) 0.122 (3.10) 0.112 (2.84) 0.199 (5.05) 0.187 (4.74) DIMENSIONS: INCH (MM) 0.120 (3.05) 0.116 (2.95) 0.036 (0.90) 0.032 (0.81) 0.043 (1.09) 0.038 (0.97) 0.012 (0.30) R 0.012 (0.3) 0.0256 (0.65) TYP 0.008 (0.20) 0.004 (0.10) 5 MAX 0 MIN 0.007 (0.18) 0.005 (0.13) 0.012 (0.03) R 0.039 (0.99) 0.035 (0.89) 0.021 (0.53) 8-Lead MSOP (MM) M9999-040805 9 April 2005 MIC5200 Micrel, Inc. 3.15 (0.124) 2.90 (0.114) CL 3.71 (0.146) 7.49 (0.295) 3.30 (0.130) 6.71 (0.264) CL 2.41 (0.095) 2.21 (0.087) 1.04 (0.041) 0.85 (0.033) 4.7 (0.185) 4.5 (0.177) 0.10 (0.004) 0.02 (0.0008) DIMENSIONS: MM (INCH) 6.70 (0.264) 6.30 (0.248) 1.70 (0.067) 16° 1.52 (0.060) 10° 10° MAX 0.38 (0.015) 0.25 (0.010) 0.84 (0.033) 0.64 (0.025) 0.91 (0.036) MIN SOT-223 (S) MICREL INC. TEL 2180 FORTUNE DRIVE + 1 (408) 944-0800 FAX SAN JOSE, CA 95131 + 1 (408) 474-1000 WEB USA 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. © 1998 Micrel Incorporated April 2005 10 M9999-040805