MIC29202BT

MIC2920X 400 mA Low Dropout Regulators Features General Description • • • • • • • • The MIC2920 family (MIC2920A, MIC29201, MIC29202, and MIC29204) are efficient voltage regulators with very low dropout voltage (typically 40 mV at light loads and 370 mV at 250 mA) and very low quiescent current (140 μA typical). The quiescent current of the MIC2920A increases only slightly in dropout, prolonging battery life. Key MIC2920A features include protection against reversed battery, fold-back current limiting, and automotive “load dump” protection (60V positive transient). • • • • High Output Voltage Accuracy Ensured 400 mA Output Low Quiescent Current Low Dropout Voltage Extremely Tight Load and Line Regulation Very Low Temperature Coefficient Current and Thermal Limiting Input Withstands –20V Reverse Battery and +60V Positive Transients Error Flag Warns of Output Dropout Logic-Controlled Electronic Shutdown Output Programmable from 1.24V to 26V (MIC29202/MIC29204) Available in TO-220-3, TO-220-5, and Surface-Mount TO-263-5, SOT-223, and SOIC-8 Packages Applications • • • • • • • • • Battery-Powered Equipment Cellular Telephones Laptop, Notebook, and Palmtop Computers PCMCIA VCC and VPP Regulation/Switching Barcode Scanners Automotive Electronics SMPS Post-Regulators Voltage Reference High-Efficiency Linear Power Supplies  2021 Microchip Technology Inc. and its subsidiaries The MIC2920 family of devices are available in several configurations. The MIC2920A-x.x devices are 3-lead fixed-voltage regulators available in 3.3V, 4.85V, 5V, and 12V outputs. The MIC29201 is a fixed-voltage regulator that offers a logic-compatible ON/OFF (shutdown) input and an error flag output. This flag may also be used as a power-on reset signal. A logic-compatible shutdown input is provided on the adjustable MIC29202, which allows the regulator to be switched on and off. The MIC29204 8-lead SOIC adjustable regulator includes both shutdown and error flag pins and may be pin-strapped for 5V output or programmed from 1.24V to 26V using two external resistors. DS20006601A-page 1 MIC2920X Package Types MIC2920A (FIXED) 3-Lead SOT-223 (S) MIC29201 (FIXED) 8-Lead SOIC (M) MIC2920A (FIXED) 3-Lead TO-220 (T) TAB 8 INPUT OUTPUT 1 TAB SENSE 2 7 NC SHUTDOWN 3 6 NC 5 ERROR GROUND 4 1 2 3 INPUT OUTPUT GROUND MIC29201/MIC29202 (ADJ.) 5-Lead TO-220 (T) MIC29201/MIC29202 (ADJ.) 5-Lead TO-263 (U) TAB TAB 1 IN 3 OU T GND 2 MIC29204 (ADJ.) 8-Lead SOIC/8-Lead PDIP (M/N) OUTPUT 1 SENSE 2 1 2 3 4 5 DS20006601A-page 2 8 INPUT 1 2 3 4 5 5-Lead Package Pinouts: 7 A D JUST SHUTDOWN 3 6 5V TAP Pin # MIC29201 MIC29202 GROUND 4 5 ERROR 1 Error Adjust 2 Input Shutdown 3 Ground Ground 4 Output Input 5 Shutdown Output  2021 Microchip Technology Inc. and its subsidiaries MIC2920X Typical Application Circuits MIC2920A-5.0 FIXED 5V REGULATOR MIC29202/4 ADJUSTABLE REGULATOR (PINOUT FOR MIC29204) V IN +V IN 100kΩ 8 VIN +V IN V OUT = 5V V OUT + 10μF V OUT 5 ERROR ERROR OUTPUT 3 SHUTDOWN INPUT SHUTDOWN 10μF R 1 100 pF OFF GND GND ADJU ST 7 4 1.23V ON MIC29202/4 5V OR 3.3V SELECTABLE REGULATOR WITH SHUTDOWN (PINOUT FOR MIC29204) R1 V OUT = V R E F x (1 + ) R2 MIC29204 WIDE INPUT VOLTAGE RANGE CURRENT LIMITER 8 +V IN 3 HIGH = OFF V CC OUT VOUT +V IN 1 SHUTDOWN 8 +VIN + HIGH = 5V OUT ADJUST 7 220kΩ 1% 470 kΩ 10μF 300kΩ 1% 100pF LOW = ON GND 4 R2 VREF NOTE: PINS 2 AND 6 ARE LEFT OPEN ≥ 5.3V SHUTDOWN INPUT 26V 1.2 VOUT 1 SHUTDOWN INPUT 180kΩ 1% 3 SD OFF 2N2222 LOW = 3.3V OUT *V OUT = V IN VOUT 1 5 ERROR ERROR OUTPUT GND ADJ U ST 4 7 ON PIN 3 LOW= ENABLE OUTPUT. Q1 ON = 3.3V, Q1 OFF = 5.0V. * Minimum Input-Output Voltage ranges from 40mV to 400mV, depending on load current Schematic Diagram ADJUST IN R18 20k Ω Q15A Q15B Q24 Q26 Q25 OUT Q9 Q3 R11 18 kΩ Q7 Q4 Q6 SENSE Q8 Q5 C1 20 pF R11 20.6 kΩ Q14 Q17 Q16 R27 R17 12 kΩ V TAP Q1 Q20 R1 20 k Ω Q42 R28 Q2 10 R2 50 kΩ R6 140 kΩ R5 180 kΩ Q40 Q13 Q22 R10 150 kΩ R8 31.4 k Ω Q21 Q23 C2 40 pF R9 27.8 kΩ R12 110 kΩ Q12 R15 100 kΩ R14 350 kΩ R13 100 kΩ R16 30 k Ω Q11 Q41 R17 10 Ω Q29 R30 30 kΩ Q19 Q18 Q28 R3 50 kΩ R4 13 kΩ R21 8 Ω 50 kΩ Q30 Q31 Q37 10 kΩ R22 150 kΩ Q36 R24 50 k Ω R23 60 k Ω SHDN ERROR Q34 Q38 R26 60 k Ω Q39  2021 Microchip Technology Inc. and its subsidiaries D E NO T E S CO NNE CT I O N O N MIC2920A-xx AND MIC29201-xx VERSIONS ONLY R25 2.8 k Ω GND DS20006601A-page 3 MIC2920X 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Input Supply Voltage ................................................................................................................................... –20V to +60V Adjust Input Voltage (Note 1, Note 2)......................................................................................................... –1.5V to +26V Power Dissipation (Note 3).....................................................................................................................Internally Limited Operating Ratings ‡ Operating Input Supply Voltage (Note 4)....................................................................................................... +2V to +26V Adjust Input Voltage (Note 1, Note 2)......................................................................................................... –1.5V to +26V Shutdown Input Voltage ............................................................................................................................. –0.3V to +30V Error Comparator Output Voltage............................................................................................................... –0.3V to +30V † 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. ‡ Notice: The device is not guaranteed to function outside its operating ratings. Note 1: Comparator thresholds are expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = VOUT/VREF = (R1 + R2)/R2. For example, at a programmed output voltage of 5V, the Error output is ensured to go low when the output drops by 95 mV x 5V/1.235V = 384 mV. Thresholds remain constant as a percent of VOUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% ensured. 2: VSHUTDOWN ≥ 2V, VIN ≤ 26V, VOUT = 0, with the Adjust pin tied to 5V Tap or to the R1, R2 junction (see the MIC29202/29204 Adjustable Regulator in Typical Application Circuits) with R1 ≥ 150 kΩ. 3: 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. 4: Across the full operating temperature, the minimum input voltage range for full output current is 4.3V to 26V. Output will remain in-regulation at lower output voltages and low current loads down to an input of 2V at 25°C. DS20006601A-page 4  2021 Microchip Technology Inc. and its subsidiaries MIC2920X ELECTRICAL CHARACTERISTICS Electrical Characteristics: Limits in standard typeface are for TJ = +25°C and limits in boldface apply over the full operating temperature range. Unless otherwise specified, VIN = VOUT + 1V, IL = 1 mA, CL = 10 μF. Adjustable versions are set for an output of 5V. The MIC29202 VSHUTDOWN ≤ 0.7V. The 8-lead MIC29204 is configured with the Adjust pin tied to the 5V Tap, the Output is tied to Output Sense (VOUT = 5V), and VSHUTDOWN ≤ 0.7V. (Note 1) Parameter Output Voltage Accuracy Output Voltage Temperature Coefficient Symbol VO ΔVO/ΔT Line Regulation ΔVO/VO Load Regulation ΔVO/VO Dropout Voltage (Note 4) Ground Pin Current (Note 5) Ground Pin Current at Dropout (Note 5) Current Limit Thermal Regulation Output Noise Voltage (10 Hz to 100 kHz), IL = 100 mA VIN – VO IGND IGNDDO ILIMIT ΔVO/ΔPD en Min. Typ. Max. –1 — 1 –2 — 2 –2.5 — 2.5 –1.5 — 1.5 –3 — 3 –4 — 4 — 20 100 — 80 350 — 0.03 0.10 — — 0.40 — 0.04 0.16 — — 0.30 — 100 150 — — 180 — 250 — — 350 — — 370 — — 500 — — 400 600 — — 750 — 140 200 — — 300 — 1.3 2 — — 2.5 — 5 9 — — 12 — 13 15 — 180 400 — 425 100 — — 1200 — 0.05 0.2 — 400 — — 260 —  2021 Microchip Technology Inc. and its subsidiaries Units Conditions Variation from factory trimmed VOUT % 1 mA ≤ IL ≤ 400 mA, across temp range MIC2920A-12 and MIC29201-12 only 1 mA ≤ IL ≤ 400 mA, across temp range ppm/°C Note 2 VOUT > 10V only % VIN = VOUT + 1V to 26V % IL = 1 mA to 250 mA (Note 3) IL = 1 mA IL = 100 mA mV VOUT > 10V only IL = 250 mA VOUT > 10V only IL = 400 mA µA IL = 1 mA IL = 100 mA mA IL = 250 mA IL = 400 mA µA mA %/W µVRMS VIN = 0.5V less than designed VOUT, (VOUT = 3.3V), IO = 1 mA VOUT = 0V Note 6 Note 7 CL = 10 µF CL = 100 µF DS20006601A-page 5 MIC2920X ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Characteristics: Limits in standard typeface are for TJ = +25°C and limits in boldface apply over the full operating temperature range. Unless otherwise specified, VIN = VOUT + 1V, IL = 1 mA, CL = 10 μF. Adjustable versions are set for an output of 5V. The MIC29202 VSHUTDOWN ≤ 0.7V. The 8-lead MIC29204 is configured with the Adjust pin tied to the 5V Tap, the Output is tied to Output Sense (VOUT = 5V), and VSHUTDOWN ≤ 0.7V. (Note 1) Parameter Symbol Min. Typ. Max. 1.223 1.235 1.247 1.210 — 1.260 1.204 — 1.266 1.210 1.235 1.260 1.200 — 1.270 1.185 — 1.285 — 20 40 — — 60 Units Conditions MIC29202, MIC29204 Reference Voltage VREF Reference Voltage VREF V MIC29202 V MIC29202, Note 8 V MIC29204 V MIC29204, Note 8 nA — Reference Voltage VREF Reference Voltage VREF Adjust Pin Bias Current IBIAS Reference Voltage Temperature Coefficient ΔVREF/ΔT — 20 — ppm/°C Adjust Pin Bias Current Temperature Coefficient ΔIBIAS/ΔT — 0.1 — nA/°C Note 7 — Error Comparator MIC29201, MIC29204 Output Leakage Current — Output Low Voltage VOL Upper Threshold Voltage VUTH Lower Threshold Voltage VLTH Hysteresis HYS DS20006601A-page 6 — 0.01 1.00 — — 2.00 — 150 250 — — 400 40 60 — 25 — — — 75 95 — — 140 — 15 — µA VOH = 26V mV VIN = 4.5V, IOL = 250 µA mV Note 9 mV Note 9 mV Note 9  2021 Microchip Technology Inc. and its subsidiaries MIC2920X ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Characteristics: Limits in standard typeface are for TJ = +25°C and limits in boldface apply over the full operating temperature range. Unless otherwise specified, VIN = VOUT + 1V, IL = 1 mA, CL = 10 μF. Adjustable versions are set for an output of 5V. The MIC29202 VSHUTDOWN ≤ 0.7V. The 8-lead MIC29204 is configured with the Adjust pin tied to the 5V Tap, the Output is tied to Output Sense (VOUT = 5V), and VSHUTDOWN ≤ 0.7V. (Note 1) Parameter Symbol Min. Typ. Max. Units Conditions Shutdown Input MIC29201, MIC29202, MIC29204 Input Logic Voltage Shutdown Pin Input Current Regulator Output Current in Shutdown — IIN(SHDN) — — 1.3 — — — 0.7 2.0 — — — 30 50 — — 100 — 450 600 — — 750 — 3 10 — — 20 — V Low (ON) High (OFF) VSHUTDOWN = 2.4V µA VSHUTDOWN = 26V µA Note 10 Note 1: 2: Devices are ESD protected. However, handling precautions are recommended. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. 3: 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. 4: Dropout Voltage is defined as the input to output differential at which the output voltage drops 100 mV below its nominal value measured at 1V differential. At low values of programmed output voltage, the minimum input supply voltage of 4.3V over temperature must be taken into account. The MIC2920A operates down to 2V of input at reduced output current at 25°C. 5: 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. 6: The MIC2920A features fold-back current limiting. The short circuit (VOUT = 0V) current limit is less than the maximum current with normal output voltage. 7: 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 200 mA load pulse at VIN = 20V (a 4W pulse) for t = 10 ms. 8: VREF ≤ VOUT ≤ (VIN – 1V), 4.3V ≤ VIN ≤ 26V, 1 mA < IL ≤ 400 mA, TJ ≤ TJ(MAX). 9: Comparator thresholds are expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured at 6V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = VOUT/VREF = (R1 + R2)/R2. For example, at a programmed output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95 mV x 5V/1.235V = 384 mV. Thresholds remain constant as a percent of VOUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% ensured. 10: VSHUTDOWN ≥ 2V, VIN ≤ 26V, VOUT = 0, with the Adjust pin tied to 5V Tap or to the R1, R2 junction (see the MIC29202/29204 Adjustable Regulator in Typical Application Circuits) with R1 ≥ 150 kΩ. 11: 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. 12: Maximum positive supply voltage of 60V must be of limited duration (