MIC5501/2/3/4 Single 300mA LDO Revision 2.0 General Description Features The MIC5501/2/3/4 is an advanced general-purpose LDO ideal for powering general-purpose portable devices. The MIC5501/2/3/4 family of products provides a highperformance 300mA LDO in an ultra-small 1mm x 1mm package. The MIC5502 and MIC5504 LDOs include an auto-discharge feature on the output that is activated when the enable pin is low. The MIC5503 and MIC5504 have an internal pull-down resistor on the enable pin that disables the output when the enable pin is left floating. This is ideal for applications where the control signal is floating during processor boot up. Ideal for battery-powered applications, the MIC5501/2/3/4 offers 2% initial accuracy, low dropout voltage (160mV at 300mA), and low ground current (typically 38µA). The MIC5501/2/3/4 can also be put into a zero-off-mode current state, drawing virtually no current when disabled. The MIC5501/2/3/4 has an operating junction temperature range of –40°C to 125°C. Datasheets and support documentation can be found on Micrel’s web site at: www.micrel.com. • • • • • • • • • • • Input voltage range: 2.5V to 5.5V Fixed output voltages from 1.0V to 3.3V 300mA guaranteed output current High output accuracy (±2%) Low quiescent current: 38µA Stable with 1µF ceramic output capacitors Low dropout voltage: 160mV @ 300mA Output discharge circuit: MIC5502, MIC5504 Internal enable pull-down: MIC5503, MIC5504 Thermal-shutdown and current-limit protection 4-lead 1.0mm x 1.0mm 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 2.0 Micrel, Inc. MIC5501/2/3/4 Absolute Maximum Ratings Operating Ratings Supply Voltage (VIN) .......................................... –0.3V to 6V Enable Voltage (VEN). ........................................ –0.3V to VIN Power Dissipation (PD) .............................. Internally Limited Lead Temperature (soldering, 10sec) ........................ 260°C Junction Temperature (TJ) ........................ –40°C to +150°C Storage Temperature (Ts) ......................... –65°C to +150°C ESD Rating..................................................................... 3kV Supply Voltage (VIN) ......................................... 2.5V to 5.5V Enable Voltage (VEN) .............................................. 0V to VIN Junction Temperature (TJ) ........................ –40°C to +125°C Junction Thermal Resistance 1x1 Thin DFN-4 (θJA) ....................................... 250°C/W Ordering Information Part Number (2) MIC5501-3.3YMT MIC5501-3.0YMT Marking Code Output (1) Voltage Auto-Discharge EN Pull-Down Temperature Range VS 3.3V NO NO –40°C to +125°C VP 3.0V NO NO –40°C to +125°C (2) VM 2.8V NO NO –40°C to +125°C (2) VG 1.8V NO NO –40°C to +125°C (2) V4 1.2V NO NO –40°C to +125°C (2) XS 3.3V YES NO –40°C to +125°C (2) XP 3.0V YES NO –40°C to +125°C XM 2.8V YES NO –40°C to +125°C XG 1.8V YES NO –40°C to +125°C MIC5501-2.8YMT MIC5501-1.8YMT MIC5501-1.2YMT MIC5502-3.3YMT MIC5502-3.0YMT MIC5502-2.8YMT (2) MIC5502-1.8YMT (2) X4 1.2V YES NO –40°C to +125°C (2) SV 3.3V NO YES –40°C to +125°C (2) ZV 3.0V NO YES –40°C to +125°C MIC5503-2.8YMT (2) MV 2.8V NO YES –40°C to +125°C MIC5503-1.8YMT YV 1.8V NO YES –40°C to +125°C MIC5502-1.2YMT MIC5503-3.3YMT MIC5503-3.0YMT (2) MIC5503-1.2YMT XV 1.2V NO YES –40°C to +125°C MIC5504-3.3YMT SX 3.3V YES YES –40°C to +125°C MIC5504-3.1YMT TX 3.1V YES YES –40°C to +125°C MIC5504-3.0YMT PX 3.0V YES YES –40°C to +125°C MIC5504-2.8YMT MX 2.8V YES YES –40°C to +125°C MIC5504-1.8YMT GX 1.8V YES YES –40°C to +125°C MIC5504-1.2YMT ZX 1.2V YES YES –40°C to +125°C Notes: 1. Other voltages are available. Contact Micrel for details. 2. Contact Micrel Marketing for availability. 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 2.0