MIC5233 High Input Voltage, Low IQ Cap LDO Regulator Features General Description * AEC-Q100 Qualified and PPAP Capable; Available for 5-Lead SOT23 Package Only * Wide Input Voltage Range: 2.3V to 36V * Ultra-Low Ground Current: 18 A * Low Dropout Voltage of 270 mV at 100 mA * High Output Accuracy of 2.0% Overtemperature * Cap: Stable with Ceramic or Tantalum Capacitors * Excellent Line and Load Regulation Specifications * Near Zero Shutdown Current: Typical 0.1 A * Reverse Battery Protection * Reverse Leakage Protection * Thermal Shutdown and Current Limit Protection * 5-Lead SOT23 and 3-Lead SOT223 Packages The MIC5233 is a 100 mA, highly accurate, low dropout regulator with high input voltage and ultra-low ground current. This combination of high voltage and low ground current makes the MIC5233 ideal for multicell Li-Ion battery systems. Applications * Keep-Alive Supply in Notebook and Portable Computers * USB Power Supply * Logic Supply for High-Voltage Batteries * Automotive Electronics * Battery-Powered Systems * 3-4 Cell Li-Ion Battery Input Range A Cap LDO design, the MIC5233 is stable with either ceramic or tantalum output capacitors. It only requires a 2.2 F output capacitor for stability. Features of the MIC5233 include enable input, thermal shutdown, current limit and reverse battery protection, and reverse leakage protection. Available in fixed and adjustable output voltage versions, the MIC5233 is offered in the 5-lead SOT23 and 3-lead SOT223 packages with a junction temperature range of -40C to +125C. Typical Application Circuit Ultra-Low Current Adjustable Regulator Application 2 CIN = 1.0 F OFF ON 2018-2019 Microchip Technology Inc. MIC5233YM5 1 5 VIN 3 EN VOUT R1 COUT = 2.2 F CERAMIC R2 IGND = 18 A 4 DS20006033D-page 1 MIC5233 Package Types MIC5233 5-Pin SOT23 (Top View) MIC5233 3-Pin SOT223 (Top View) EN GND IN 3 2 GND 4 1 L3xx 4 5 NC OR ADJ OUT DS20006033D-page 2 1 2 3 IN GND OUT 2018-2019 Microchip Technology Inc. MIC5233 Functional Block Diagrams Fixed Output Voltage (SOT23 Package) OUT IN EN Fixed Output Voltage (SOT223 Package) OUT IN ENABLE ENABLE R1 R1 VREF VREF R2 R2 GND GND Adjustable Output Voltage (SOT223 and SOT23 Packages) OUT IN EN ENABLE R1 VREF ADJ R2 GND 2018-2019 Microchip Technology Inc. DS20006033D-page 3 MIC5233 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Input Supply Voltage (VIN)........................................................................................................................... -20V to +38V Enable Input Voltage (VEN) ........................................................................................................................ -0.3V to +38V Power Dissipation (PDIS) ........................................................................................................................Internally Limited ESD Rating (Note 1) .................................................................................................................................. ESD Sensitive Operating Ratings Input Supply Voltage (VIN).......................................................................................................................... +2.3V to +36V Enable Input Voltage (VEN) ............................................................................................................................. 0V to +36V Notice: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. Specifications are for packaged product only. The device is not ensured to function outside its operating ratings. Note 1: Devices are ESD sensitive. Handling precautions are recommended. TABLE 1-1: ELECTRICAL CHARACTERISTICS Electrical Characteristics: TJ = +25C with VIN = VOUT + 1V; IOUT = 100 A; Bold values indicate -40C TJ +125C, unless otherwise specified. Specifications for packaged product only. Parameter Output Voltage Accuracy Symbol Min. Typ. Max. VOUT -1.0 -2.0 -- -- -- 0.04 1.0 2.0 0.5 ISHDN -- -- -- -- -- -- -- -- -- -- -- 0.25 50 230 -- 270 -- 18 -- 0.25 1 0.1 1 -- 300 400 400 450 30 35 0.70 2 1 ISC -- 190 350 mA -- -0.1 -- V Load = 500; VIN = -15V -- 2.0 -1.0 -- -- -- 0.01 0.1 0.6 -- 1.0 1.0 V V A Regulator off Regulator on VEN = 0.6V; regulator off VEN = 2.0V; regulator on -- -- 0.5 1.7 2.5 7 ms VEN = 36V; regulator on VIN applied before EN signal Line Regulation VOUT/VIN Load Regulation Dropout Voltage VOUT/VOUT VDO Ground Current Ground Current in Shutdown Short-Circuit Current IGND Output Leakage, Reverse VOUT Polarity Input (Note 2) Enable Input (SOT23 Package Only) Input Low Voltage VEN Input High Voltage Enable Input Current IEN Start-up Time Note 1: 2: tSTART Units Conditions % Variation from nominal VOUT % VIN = VOUT + 1V to 36V % IOUT = 100 A to 100 mA IOUT = 100 A mV IOUT = 50 mA IOUT = 100 mA A mA A IOUT = 100 A IOUT = 50 mA IOUT = 100 mA VEN 0.6V; VIN = 36V (SOT23 package only) VOUT = 0V The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +125C rating. Sustained junction temperatures above +125C can impact the device reliability. Design guidance only, not production tested. DS20006033D-page 4 2018-2019 Microchip Technology Inc. MIC5233 TEMPERATURE SPECIFICATIONS(1) Parameters Sym. Min. Typ. Max. Units Conditions Junction Operating Temperature Range TJ -40 -- +125 C -- Storage Temperature Range TS -65 -- +150 C -- Thermal Resistance 5-Lead SOT23 JA -- 235 -- C/W -- Thermal Resistance 3-Lead SOT223 JA -- 50 -- C/W -- Temperature Ranges Package Thermal Resistances Note 1: 2: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the maximum allowable power dissipation will cause the device operating junction temperature to exceed the maximum +125C rating. Sustained junction temperatures above +125C can impact the device reliability. Design guidance only, not production tested. 2018-2019 Microchip Technology Inc. DS20006033D-page 5 MIC5233 2.0 Note: TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. FIGURE 2-1: Ratio. Power Supply Rejection FIGURE 2-4: Dropout Characteristics. FIGURE 2-2: Current. Dropout Voltage vs. Output FIGURE 2-5: Output Current. Ground Pin Current vs. FIGURE 2-3: Temperature. Dropout Voltage vs. FIGURE 2-6: Output Current. Ground Pin Current vs. DS20006033D-page 6 2018-2019 Microchip Technology Inc. MIC5233 FIGURE 2-7: Temperature. Ground Pin Current vs. FIGURE 2-10: Input Voltage. Ground Pin Current vs. FIGURE 2-8: Temperature. Ground Pin Current vs. FIGURE 2-11: Input Voltage. Ground Pin Current vs. FIGURE 2-9: Temperature. Ground Pin Current vs. FIGURE 2-12: Input Voltage. Ground Pin Current vs. 2018-2019 Microchip Technology Inc. DS20006033D-page 7 MIC5233 FIGURE 2-13: Voltage. Input Current vs. Supply FIGURE 2-14: Temperature. Output Voltage vs. FIGURE 2-15: Temperature. Short-Circuit Current vs. DS20006033D-page 8 FIGURE 2-16: Load Transient Response. 2018-2019 Microchip Technology Inc. MIC5233 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin Number SOT223 Pin Number SOT23 Pin Name 1 1 IN Description Supply Input. 2 2 GND -- 3 EN Enable (Input). Logic Low = Shutdown; Logic High = Enable. -- 4 NC No Connect. ADJ Adjustable (Input). Feedback Input; Connect to Resistive Voltage Divider Network. Regulator Output. 3 5 OUT 4 -- EP 2018-2019 Microchip Technology Inc. Ground. Exposed Pad. Internally Connected to Ground. DS20006033D-page 9 MIC5233 4.0 APPLICATION INFORMATION 4.1 Enable/Shutdown The MIC5233 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, consuming a typical 0.1 A. Forcing the enable pin high enables the output voltage. 4.2 Input Capacitor The MIC5233 has a high input voltage capability, up to 36V. The input capacitor must be rated to sustain voltages that may be used on the input. An input capacitor may be required when the device is not near the source power supply or when supplied by a battery. Small surface mount, ceramic capacitors can be used for bypassing. A larger value may be required if the source supply has high ripple. 4.3 Output Capacitor The MIC5233 requires an output capacitor for stability. The design requires 2.2 F or greater on the output to maintain stability. The design is optimized for use with low-ESR ceramic chip capacitors. High-ESR capacitors may cause high-frequency oscillation. The maximum recommended ESR is 3. The output capacitor can be increased without limit. Larger valued capacitors help to improve transient response. 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. 4.4 EQUATION 4-1: T J MAX - T A P D MAX = -------------------------------- JA Where: TJ(MAX) = Maximum junction temperature of the die at +125C TA = The ambient operating temperature JA = Layout dependent Table 4-1 shows examples of the junction-to-ambient thermal resistance for the MIC5233: TABLE 4-1: Thermal Consideration The MIC5233 is designed to provide 100 mA of continuous current in a very small package. Maximum power dissipation can be calculated based on the output current and the voltage drop across the part. DS20006033D-page 10 5-LEAD SOT23 AND SOT-223 THERMAL RESISTANCE Package JA Recommended Minimum Footprint SOT23-5 235C/W SOT223 50C/W The actual power dissipation of the regulator circuit can be determined using Equation 4-2: EQUATION 4-2: P D = V IN - VOUT I OUT + V IN I GND Substituting PD(MAX) for PD and solving for the operating conditions that are critical to the application will give the maximum operating conditions for the regulator circuit. For example, when operating the MIC5233-3.0YM5 at +50C, with a minimum footprint layout, the maximum input voltage for a set output current can be determined as follows: EQUATION 4-3: 125C - 50C PD MAX = ----------------------------------- 235C/W No-Load Stability The MIC5233 will remain stable and in regulation with no load unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications. 4.5 To determine the maximum power dissipation of the package, use the junction-to-ambient thermal resistance of the device and Equation 4-1: Where: PD(max) = 319 mW The junction-to-ambient (JA) thermal resistance for the minimum footprint is +235C/W from Table 4-1. It is important that the maximum power dissipation not be exceeded to ensure proper operation. Because the MIC5233 was designed to operate with high input voltages, careful consideration must be given so as not to overheat the device. With very high input-to-output voltage differentials, the output current is limited by the total power dissipation. 2018-2019 Microchip Technology Inc. MIC5233 Total power dissipation is calculated using the following equation: EQUATION 4-4: P D = V IN - VOUT I OUT + V IN I GND 4.6 Adjustable Regulator Application The MIC5233M5 can be adjusted from 1.24V to 20V by using two external resistors (Figure 4-1). The resistors set the output voltage based on the following equation: EQUATION 4-8: R1 V OUT = V REF 1 + ------- R2 Due to the potential for input voltages up to 36V, ground current must be taken into consideration. If we know the maximum load current, we can solve for the maximum input voltage using the maximum power dissipation calculated for a +50C ambient, 319 mW. EQUATION 4-5: Where VREF = 1.24V Feedback resistor R2 should be no larger than 300 k. P D MAX = VIN - VOUT I OUT + V IN I GND VIN MIC5233YM5 IN VOUT OUT 319mW = V IN - 3V 100mA + VIN 2.8mA Ground pin current is estimated using the typical characteristics of the device. R1 1.0 F EN GND ADJ 2.2 F R2 EQUATION 4-6: 619mW = VIN 102.8mA FIGURE 4-1: Application. Adjustable Voltage Where: VIN = 6.02V For higher current outputs, only a lower input voltage will work for higher ambient temperatures. Assuming a lower output current of 10 mA, the maximum input voltage can be recalculated: EQUATION 4-7: 319mW = V IN - 3V 10mA + V IN 0.1mA 349mW = V IN 10.1mA Where: VIN = 34.55V Maximum input voltage for a 10 mA load current at 50C ambient temperature is 34.55V, utilizing virtually the entire operating voltage range of the device. 2018-2019 Microchip Technology Inc. DS20006033D-page 11 MIC5233 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 5-Lead SOT23* XXXX XXXXNNNP 3-Lead SOT223* XXXX Legend: XX...X Y YY WW NNN e3 * Example 5233 33YS464P Example L350 Product code or customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week `01') Alphanumeric traceability code Pb-free JEDEC(R) designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. , , Pin one index is identified by a dot, delta up, or delta down (triangle mark). Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. Package may or may not include the corporate logo. Underbar (_) and/or Overbar () symbol may not be to scale. DS20006033D-page 12 2018-2019 Microchip Technology Inc. MIC5233 5-Lead SOT23 Package Outline and Recommended Land Pattern Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging. 2018-2019 Microchip Technology Inc. DS20006033D-page 13 MIC5233 3-Lead SOT223 Package Outline and Recommended Land Pattern Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging. DS20006033D-page 14 2018-2019 Microchip Technology Inc. MIC5233 APPENDIX A: REVISION HISTORY Revision D (July 2019) * Updated the Features section. Revision C (February 2019) * Information about the Automotive Grade option added in Features but removed from Package Types, and the Product Identification System sections of the data sheet. * Updated the Typical Application Circuit on the very first page. Revision B (June 2018) * Unbolded values for VEN in Table 1-1. * The condition for Start-Up Time in the Electrical Characteristics table is updated. Revision A (May 2018) * Converted Micrel document MIC5233 to Microchip data sheet DS20006033A. * Minor text changes throughout. * Information about the Automotive Grade option added in Features, Package Types, and the Product Identification System sections of the data sheet. 2018-2019 Microchip Technology Inc. DS20006033D-page 15 MIC5233 NOTES: DS20006033D-page 16 2018-2019 Microchip Technology Inc. MIC5233 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office. Examples: PART NO. -X.X X XXX -XX Device Output Voltage Junction Temperature Range Package Media Type Device: MIC5233: High Input Voltage, Low IQ Cap LDO Regulator Output Voltage: 1.8 = 1.8V 2.5 = 2.5V a) MIC5233-1.8YM5-TR: High Input Voltage, Low IQ Cap LDO Regulator, 1.8V, -40C to +125C, 5-Lead SOT23, 3000/Reel b) MIC5233-2.5YM5-TR: High Input Voltage, Low IQ Cap LDO Regulator, 2.5V, -40C to +125C, 5-Lead SOT23, 3000/Reel c) MIC5233-3.0YM5-TR: High Input Voltage, Low IQ Cap LDO Regulator, 3.0V, -40C to +125C, 5-Lead SOT23, 3000/Reel d) MIC5233-3.3YM5-TR: High Input Voltage, Low IQ Cap LDO Regulator, 3.3V, -40C to +125C, 5-Lead SOT23, 3000/Reel 3.3 = 3.3V e) MIC5233-5.0YM5-TR: High Input Voltage, Low IQ Cap LDO Regulator, 5.0V, -40C to +125C, 5-Lead SOT23, 3000/Reel 5.0 = 5.0V f) MIC5233YM5-TR: High Input Voltage, Low IQ Cap LDO Regulator, Adjustable, -40C to +125C, 5-Lead SOT23, 3000/Reel g) MIC5233-3.3YS: High Input Voltage, Low IQ Cap LDO Regulator, 3.3V, -40C to +125C, 3-Lead SOT223, 78/Tube h) MIC5233-5.0YS: High Input Voltage, Low IQ Cap LDO Regulator, 5.0V, -40C to +125C, 3-Lead SOT223, 78/Tube i) MIC5233-5.0YS-TR: High Input Voltage, Low IQ Cap LDO Regulator, 5.0V, -40C to +125C, 3-Lead SOT223, 2500/Reel 3.0 = 3.0V Adjustable <blank> = Adjustable Junction Temperature Range: Y = -40C to +125C Package: M5 S = 5-Lead SOT23 = 3-Lead SOT223 Media Type: <blank> = 78/Tube (SOT223 Only) TR = 2,500/Reel (SOT223 Only) TR = 3000/Reel (SOT23 Only) Note: 2018-2019 Microchip Technology Inc. Tape and Reel identifier only appears in the catalog part number description. This identifier is used for ordering purposes and is not printed on the device package. Check with your Microchip Sales Office for package availability with the Tape and Reel option. DS20006033D-page 17 MIC5233 NOTES: DS20006033D-page 18 2018-2019 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: * Microchip products meet the specification contained in their particular Microchip Data Sheet. * Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. * There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. * Microchip is willing to work with the customer who is concerned about the integrity of their code. * Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as "unbreakable." Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights unless otherwise stated. Trademarks The Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. 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Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. (c) 2018-2019, Microchip Technology Incorporated, All Rights Reserved. For information regarding Microchip's Quality Management Systems, please visit www.microchip.com/quality. 2018-2019 Microchip Technology Inc. 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