MP8903 Low Dropout 150mA Linear Regulator The Future of Analog IC Technology DESCRIPTION FEATURES 2.7V to 6.5V Input Voltage Range The MP8903 is a 150mA low-dropout linear Fixed Output Voltage Options of 2.5V, regulator that can operate from 2.7V to 6.5V 2.85V or 3.3V input. It regulates the output with 2% accuracy Adjustable Output Voltage from 1.25V to 5V and comes with preset 2.5V, 2.85V or 3.3V using an External Resistor Divider output. An external resistor divider may be used to adjust the output voltage from 1.25V to 5V. Low 100mV Dropout at 100mA Output 2% Accurate Output Voltage The MP8903 has thermal protection to guard Stable With Low-ESR Output Capacitors against harsh operating conditions, and is Thermal Protection available in small 2x2 8-pin QFN and 5-pin Available in Tiny 2x2 8-Pin QFN and TSOT23 packages. TSOT23-5 Packages APPLICATIONS 802.11 PC Cards Mobile Handset PLL Power Audio Codec Power MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION V vs I DROPOUT LOAD V 160 IN 2.7V to 6.5V OUTPUT IN OUT 140 1.25V to 5V 120 MP8903DX-X.X R1 100 EN GND FB 80 V IN The sum of 60 EN (Pin3) R1 and R2 R2 may be connected should not 40 to IN (Pin 1) directly exceed 100k 20 0 0 20 40 60 80 100 120 140 160 I (mA) LOAD MP8903 Rev. 1.1 www.MonolithicPower.com 1 9/21/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2007 MPS. All Rights Reserved. V (mV) DROPOUTMARKING MP8903 LOW DROPOUT, 150mA LINEAR REGULATOR PACKAGE REFERENCE TOP VIEW TOP VIEW GND 1 8 FB IN 1 5 OUT EN 2 7 NC GND 2 IN 3 6 OUT EN 3 4 FB IN 4 5 OUT Part Number** Package Temp Part Number* Package Temp MP8903DJ2.5 MP8903DG2.5 QFN8 40 C to +85C TSOT23-5 40 C to +85C MP8903DJ2.85 MP8903DG2.85 2mm x 2mm MP8903DG3.3 MP8903DJ3.3 For Tape & Reel, add suffix Z (eg. MP8903DG2.85Z) For Tape & Reel, add suffix Z (eg. MP8903DJ2.85Z) * ** For RoHS Compliant Packaging, add suffix LF For RoHS Compliant Packaging, add suffix LF (eg. MP8903DJ2.85LFZ) (eg. MP8903DG2.85LFZ) (2) (1) Recommended Operating Conditions ABSOLUTE MAXIMUM RATINGS Input Voltage .................................. 2.7V to 6.5V IN Supply Voltage .......................0.3V to +7.0V Output Voltage................................. 1.25V to 5V FB Voltage .........................0.3V to V + 0.3V OUT Load Current...........................150mA Maximum All Other Pins.................................0.3V to +6V Operating Temperature .............40 C to +85 C Junction Temperature...............................150C (3) Lead Temperature ....................................260C Thermal Resistance JA JC Storage Temperature ............. 65C to +150C TSOT23-5.............................. 220.... 110.. C/W 2x2 QFN8 ............................... 80...... 16... C/W Notes: 1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its operating conditions. 3) Measured on approximately 1 square of 1 oz copper. ELECTRICAL CHARACTERISTICS V = 5V, T = +25 C, unless otherwise noted. IN A Parameter SymbolCondition Min Typ Max Units Operating Voltage I = 1mA 2.7 6.5 V OUT Output Voltage Accuracy I = 1mA, V = 1.5V to 5V 1.0 2.0 % OUT OUT Shutdown Current V = 0V, V = 5V 0.1 1 A EN IN 1.197 1.222 1.246 FB Regulation Voltage V 40 C T +85C 1.194 1.222 1.249 A V = 3V 150 (5) OUT Dropout Voltage I = 150mA mV OUT V = 4V 125 OUT MP8903 Rev. 1.1 www.MonolithicPower.com 2 9/21/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2007 MPS. All Rights Reserved.