MIC5396/7/8/9 Low-Power Dual 300mA LDO Revision 1.1 General Description Features The MIC5396/7/8/9 is an advanced dual LDO ideal for powering general purpose portable devices. The MIC5396/7/8/9 provides two high-performance, independent 300mA LDOs in a single package. This makes it possible to improve system efficiency by providing two independent supply inputs that can be optimized for each individual LDO. The MIC5396/7/8/9 also features a wide output voltage range down to 1.0V. Its full feature set and low dropout voltage make it ideal for battery-powered applications. The MIC5396/7/8/9 offers 2% accuracy, low dropout voltage (160mV at 300mA), and low ground current (typically 42μA per LDO at full load). The MIC5396/7/8/9 can also be put into a zero off mode current state, drawing virtually no current when disabled. When the MIC5397/9 is disabled an internal resistive load is automatically applied to the output to discharge the output capacitor. In addition, the MIC5398/9 offers an internal enable pull-down resistor to ensure that the output is disabled when the enable is in tri-state mode. These LDO’s also offer fast transient response and high PSRR while consuming a minimum operating current. The family is available in a tiny 8-pin, 1.2mm x 1.6mm leadless Extra Thin DFN package. Data sheets and support documentation can be found on Micrel’s web site at www.micrel.com. • • • • • • • • • • • • • • 2.5V to 5.5V input voltage range Independent power inputs Output voltage range from 1V to 3.3V Two 300mA outputs High output accuracy (±2%) Low quiescent current – 37µA typical/LDO Stable with 1µF ceramic output capacitors Low dropout voltage (160mV at 300mA) Independent enable pins Internal enable pull-down (MIC5398, MIC5399) Output discharge circuit (MIC5397, MIC5399) Thermal-shutdown protection Current-limit protection 8-pin 1.2mm x 1.6mm Extra Thin DFN package Applications • Smart phones • DSC, GPS, PMP and PDAs • Medical devices • Portable electronics • 5V systems ___________________________________________________________________________________________________________ Typical Application Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com January 14, 2013 Revision 1.1 Micrel, Inc. MIC5396/7/8/9 Absolute Maximum Ratings Operating Ratings Supply Voltage (VIN1, VIN2) ............................... –0.3V to +6V Enable Voltage (VEN1, VEN2). .............................. –0.3V to VIN Power Dissipation (PD) .............................. Internally Limited Lead Temperature (soldering, 10sec.) ....................... 260°C Junction Temperature (TJ) ........................ –40°C to +125°C Storage Temperature (Ts) ......................... –65°C to +150°C ESD Rating..................................................................... 3kV Supply Voltage (VIN1, VIN2) .............................. +2.5V to 5.5V Enable Voltage (VEN1, VEN2). ................................... 0V to VIN Junction Temperature (TJ) ........................ –40°C to +125°C Junction Thermal Resistance 1.2mm x 1.6mm Extra Thin DFN (θJA).......... 172.6°C/W Ordering Information Part Number Marking Code (1) (1) VOUT1/VOUT2 EN Discharge Circuit Output Discharge Circuit Junction Temperature Range MIC5396-GMYMX RJ 1.8V/2.8V –– – –40°C to +125°C MIC5397-GPYMX RZ 1.8V/3.0V – X –40°C to +125°C MIC5398-P4YMX RP 3.0V/1.2V X – –40°C to +125°C MIC5399-SSYMX RD 3.3V/3.3V X X –40°C to +125°C MIC5399-SMYMX 1R 3.3V/2.8V X X –40°C to +125°C MIC5399-SGYMX RM 3.3V/1.8V X X –40°C to +125°C X –40°C to +125°C 2.8V/2.8V X MIC5399-GPYMX 3R 1.8V/3.0V X X –40°C to +125°C MIC5399-GMYMX 4R 1.8V/2.8V X X –40°C to +125°C MIC5399-MMYMX (2) 2R Notes: 1. Other voltages are available. Contact Micrel for details. 2. Contact Micrel Marketing to order. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. © 2012 Micrel, Incorporated. January 14, 2013 2 Revision 1.1