MPQ2490DS-LF

MP20045 Low Noise, 1A Linear Regulator The Future of Analog IC Technology DESCRIPTION FEATURES The MP20045 is a low-dropout linear regulator supplies up to 1A current with 140mV dropout voltage. The output voltage is set externally which ranges from 1.5V to 5V by operating from +2.5V to +5.5V input or can be preset internally from 1.5V to 5V.     An internal PMOS pass element is used to allow a low 110μA ground current, making the MP20045 suitable for battery-power devices. Other features include low-power shutdown, short-circuit and thermal protection. The MP20045 is available in 8-pin QFN (3mm x 3mm) and SOIC8E packages.      Up to 1A Output Current Low 140mV Dropout at 1A Low 110μA Ground Current Fixed Output Versions Ranging from 1.5V to 5V and Adjustable Versions Open Drain Power-Good Status Output 13μVRMS Low Noise Output 56dB PSRR at 1kHz Current Limiting and Thermal Protection 3mm×3mm QFN8 and SOIC8E Packages APPLICATIONS       Notebook Computers Cordless Telephones Cellular Phones Modems Hand-Held Instruments PDA and Palmtop Computers All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN R3 100k VIN VOUT R3 100k CIN PG MP20045 FB EN CIN R1 PG COUT 2.2 VOUT MP20045 FB R2 EN VOUT =1.5  (1+ Fixed Version C3(Optional) 0.1nF COUT 2.2 R1 )Volts R2 Adjustable Version MP20045 Rev. 1.11 www.MonolithicPower.com 1/19/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 1 MP20045 – LOWER NOISE, 1A LINEAR REGULATOR ORDERING INFORMATION Part Number* MP20045DQ** MP20045DQ-18** MP20045DQ-25** MP20045DN** MP20045DN-18** Output Voltage Adjustable 1.8V 2.5V Adjustable 1.8V Package QFN8 (3mm x 3mm) QFN8 (3mm x 3mm) QFN8 (3mm x 3mm) SOIC8E SOIC8E Top Marking 8K 3V 9Z M20045DN 20045-18 Free Air Temperature (TA) -40C to +85C * For fixed output voltage versions between 1.5V and 5V. Contact factory for availability. ** For Tape & Reel, add suffix –Z (e.g. MP20045DQ–Z, MP20045DN–Z); For RoHS compliant packaging, add suffix –LF (e.g. MP20045DQ–LF–Z, MP20045DN–LF–Z). PACKAGE REFERENCE TOP VIEW TOP VIEW VIN 1 8 EN VIN 2 7 PG VOUT 3 6 GND VOUT 4 5 VOUT 1 8 VIN VOUT 2 7 VIN FB 3 6 EN GND 4 5 PG FB EXPOSED PAD ON BACKSIDE CONNECT TO GND QFN8 (3mm x 3mm) ABSOLUTE MAXIMUM RATINGS (1) VIN, EN, PG, FB to GND ................ -0.3V to +6V OUT to GND.......................... -0.5V to VIN + 0.5V Continuous Power Dissipation (TA=+25C) (2) QFN8 (3x3) .......................................................2.0W SOIC8E..............................................................2.0W Free Air Temperature (TA)............... -40°C to 85°C Storage Temperature Range ...... -65°C to 150°C Lead Temperature (Soldering, 10sec)........... 260°C ESD Susceptibility HBM (Human Body Mode)............................ 2kV MM (Machine Mode) ................................... 200V SOIC8E Thermal Resistance (4) θJA θJC QFN8 (3x3) .............................. 50 ...... 12... C/W SOIC8E.................................... 50 ...... 10... C/W Notes: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ(MAX), the junction-toambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD(MAX)=(TJ(MAX)TA)/ θJA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7 4-layer board. Recommended Operating Conditions (3) Supply Input Voltage ....................... 2.5V to 5.5V Enable Input Voltage ......................... 0V to 5.5V Operating Junct. Temp (TJ) ......-40C to +125C MP20045 Rev. 1.11 www.MonolithicPower.com 1/19/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 2 MP20045 – LOWER NOISE, 1A LINEAR REGULATOR ELECTRICAL CHARACTERISTICS VIN=VOUT+0.5V or VIN=2.5V, EN=VIN, Typical values are at TA=+25°C, unless otherwise specified Parameter Input Voltage Input Under voltage Lockout Hysteresis of UVLO FB Accuracy Adjustable 1.5V Output Voltage 1.8V Accuracy 2.5V Maximum Output Current Short-Circuit Current Limit Condition VIN rising Min 2.5 2.0 Typ Max 5.5 2.3 160 PSRR IOUT=1mA IOUT=1mA, 2.5V