MP20045 Low Noise, 1A Linear Regulator The Future of Analog IC Technology DESCRIPTION FEATURES Up to 1A Output Current The MP20045 is a low-dropout linear regulator Low 140mV Dropout at 1A supplies up to 1A current with 140mV dropout Low 110 A Ground Current voltage. The output voltage is set externally which ranges from 1.5V to 5V by operating from Fixed Output Versions Ranging from 1.5V to +2.5V to +5.5V input or can be preset internally 5V and Adjustable Versions from 1.5V to 5V. Open Drain Power-Good Status Output 13 V Low Noise Output RMS An internal PMOS pass element is used to 56dB PSRR at 1kHz allow a low 110 A ground current, making the Current Limiting and Thermal Protection MP20045 suitable for battery-power devices. 3mm3mm QFN8 and SOIC8E Packages Other features include low-power shutdown, short-circuit and thermal protection. The APPLICATIONS MP20045 is available in 8-pin QFN (3mm x Notebook Computers 3mm) and SOIC8E packages. 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 VOUT VIN VOUT C3(Optional) R3 C C IN R1 R3 IN 0.1nF 100k 100k FB MP20045 MP20045 FB PG PG R2 C OUT C OUT 2.2 EN 2.2 EN R 1 V = (1+ )Volts OUT 1.5 R 2 Fixed Version Adjustable Version MP20045 Rev. 1.11 www.MonolithicPower.com 1 1/19/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. MP20045 LOWER NOISE, 1A LINEAR REGULATOR ORDERING INFORMATION Part Number* Output Voltage Package Top Marking Free Air Temperature (TA) MP20045DQ** Adjustable QFN8 (3mm x 3mm) 8K MP20045DQ-18** 1.8V QFN8 (3mm x 3mm) 3V MP20045DQ-25** 2.5V QFN8 (3mm x 3mm) 9Z -40 C to +85 C MP20045DN** Adjustable SOIC8E M20045DN MP20045DN-18** 1.8V SOIC8E 20045-18 * For fixed output voltage versions between 1.5V and 5V. Contact factory for availability. ** For Tape & Reel, add suffix Z (e.g. MP20045DQZ, MP20045DNZ) For RoHS compliant packaging, add suffix LF (e.g. MP20045DQLFZ, MP20045DNLFZ). PACKAGE REFERENCE TOP VIEW TOP VIEW VIN 1 8 EN VOUT 1 8 VIN VIN 2 7 PG VOUT 2 7 VIN FB 3 6 EN 6 VOUT 3 GND GND 4 5 PG VOUT 4 5 FB EXPOSED PAD ON BACKSIDE CONNECT TO GND QFN8 (3mm x 3mm) SOIC8E (4) (1) Thermal Resistance JA JC ABSOLUTE MAXIMUM RATINGS QFN8 (3x3) .............................. 50 ...... 12 ... C/W VIN, EN, PG, FB to GND ................ -0.3V to +6V SOIC8E .................................... 50 ...... 10 ... C/W OUT to GND .......................... -0.5V to V + 0.5V IN (2) Notes: Continuous Power Dissipation (T =+25 C) A 1) Exceeding these ratings may damage the device. QFN8 (3x3) ....................................................... 2.0W 2) The maximum allowable power dissipation is a function of the SOIC8E .............................................................. 2.0W maximum junction temperature T(MAX), the junction-to- J ambient thermal resistance JA, and the ambient temperature Free Air Temperature (T ) ............... -40C to 85C A TA. The maximum allowable continuous power dissipation at Storage Temperature Range ...... -65C to 150C any ambient temperature is calculated by PD(MAX)=(TJ(MAX)- TA)/ JA. Exceeding the maximum allowable power dissipation Lead Temperature (Soldering, 10sec) ........... 260C will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry ESD Susceptibility protects the device from permanent damage. 3) The device is not guaranteed to function outside of its HBM (Human Body Mode) ............................ 2kV operating conditions. MM (Machine Mode) ................................... 200V 4) Measured on JESD51-7 4-layer board. (3) Recommended Operating Conditions Supply Input Voltage ....................... 2.5V to 5.5V Enable Input Voltage ......................... 0V to 5.5V Operating Junct. Temp (T ) ...... -40C to +125 C J MP20045 Rev. 1.11 www.MonolithicPower.com 2 1/19/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.