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LPS4012 Datasheet(PDF) 3 Page - Microchip Technology |
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LPS4012 Datasheet(HTML) 3 Page - Microchip Technology |
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3 / 34 page  © 2011 Microchip Technology Inc. DS22285A-page 3 MCP16321/2 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† VIN.................................................................... -0.3V to 26.4V SW ...................................................................... -1V to 26.4V BOOST – GND ........................................... -0.3V to (VIN+6V) EN,VFB, PG Voltage.............................................. -0.3V to 6V Continuous Total Power Dissipation ....................................... ...................................................See Thermal Characteristics Storage Temperature ....................................-65°C to +150°C Operating Junction Temperature...................-40°C to +125°C ESD Protection On All Pins: HBM ......................................................................... 3 kV MM ..........................................................................200V † 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. DC CHARACTERISTICS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VIN =12V, VOUT = 3.3V, IOUT = 300 mA, L= 4.7 µH, COUT =2x22 µF, CIN =2x10µF. Boldface specifications apply over the TJ range of -40°C to +125°C. Parameters Sym Min Typ Max Units Conditions VIN Supply Voltage Input Voltage VIN 6.0 — 24 V Quiescent Current (Switching) IQ —5.2 — mA IOUT = 0 mA Quiescent Current (Non-Switching) IQ — 2.3 — mA Closed Loop in Overvoltage IOUT = 0 mA Quiescent Current - Shutdown IQ —5 10 µA EN = 0 VIN Undervoltage Lockout Undervoltage Lockout Start UVLOSTRT 5.5 5.75 6.0 VVIN Rising Undervoltage Lockout Hysteresis UVLOHYS — 0.65 — V Non-Switching Output Characteristics Maximum Output Current MCP16321 IOUT 1 —— A VIN = 6V to 24V Maximum Output Current MCP16322 IOUT 2 —— A VIN = 6V to 24V Output Voltage Adjust Range VOUT 0.9 — 5.0 V Output Voltage Tolerance in PWM Mode VOUT-PWM VOUT -2% VOUT VOUT +2% VIOUT = 1A Output Voltage Tolerance in PFM Mode VOUT-PFM VOUT -1% VOUT +1% VOUT +3.5% VIOUT = 0A Feedback Voltage VFB 0.886 0.9 0.914 V Feedback Reference Tolerance VFB-TOL -1.5 — 1.5 % PFM Mode Feedback Comparator Threshold VFB-PFM —VOUT + 1% — V Feedback Input Bias Current IFB —100 — nA Note 1: Regulator SW pin is forced off for 240 ns every 8 cycles to ensure the BOOST cap is replenished. |
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