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MIC5318 Dataheets PDF



Part Number MIC5318
Manufacturers Micrel Semiconductor
Logo Micrel Semiconductor
Description High Performance 300mA uCap ULDO
Datasheet MIC5318 DatasheetMIC5318 Datasheet (PDF)

www.DataSheet4U.com MIC5318 High Performance 300mA µCap ULDO™ General Description The MIC5318 is a high performance, single output ultra low drop-out (ULDO™) regulator, offering low total output noise in an ultra-small Thin MLF® package. The MIC5318 is capable of sourcing 300mA output current and offers high PSRR and low output noise, making it an ideal solution for RF applications. Ideal for battery operated applications, the MIC5318 offers 2% initial accuracy, extremely low dropout voltage (.

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www.DataSheet4U.com MIC5318 High Performance 300mA µCap ULDO™ General Description The MIC5318 is a high performance, single output ultra low drop-out (ULDO™) regulator, offering low total output noise in an ultra-small Thin MLF® package. The MIC5318 is capable of sourcing 300mA output current and offers high PSRR and low output noise, making it an ideal solution for RF applications. Ideal for battery operated applications, the MIC5318 offers 2% initial accuracy, extremely low dropout voltage (110mV @ 300mA), and low ground current (typically 85µA total). The MIC5318 can also be put into a zero-off-mode current state, drawing no current when disabled. The MIC5318 is available in the 1.6mm x 1.6mm Thin MLF® package, occupying only 2.56mm2 of PCB area, fully a 36% reduction in board area when compared to SC-70 and 2mm x 2mm MLF® packages. The MIC5318 has an operating junction temperature range of –40°C to +125°C and is available in fixed and adjustable output voltages in lead-free (RoHS compliant) Thin MLF® and Thin SOT23-5 packages. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features • • • • • • • • • Ultra low dropout voltage 110mV @ 300mA Input voltage range: 2.3V to 6.0V 300mA guaranteed output current Stable with ceramic output capacitors Ultra low output noise – 30µVrms Low quiescent current – 85µA total High PSRR > 70dB@1kHz Less than 35µs turn-on time High output accuracy – ± 2% initial accuracy – ± 3% over temperature Thermal shutdown and current limit protection Tiny 6-pin 1.6mm x 1.6mm Thin MLF® package Thin SOT23-5 package • • • Applications • • • • • Mobile phones PDAs GPS receivers Portable electronics Digital still and video cameras Typical Application MIC5318-x.xYMT VIN VIN EN VOUT 1µF BYP GND 1µF 0.01µF Portable Application ULDO is a trademark of Micrel, Inc. MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. 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 2007 M9999-011207 Micrel, Inc. MIC5318 Functional Diagram VIN EN VREF QuickStart VOUT Error LDO Amp BYP Thermal Shutdown Current Limit GND MIC5318 Block Diagram – Fixed VIN EN VREF QuickStart VOUT Error LDO Amp BYP ADJ Thermal Shutdown Current Limit GND MIC5318 Block Diagram – Adjustable January 2007 2 M9999-011207 Micrel, Inc. MIC5318 Ordering Information Part number MIC5318-1.5YMT MIC5318-1.8YMT MIC5318-2.8YMT MIC5318-3.3YMT MIC5318YMT MIC5318-1.5YD5 MIC5318-1.8YD5 MIC5318-2.8YD5 MIC5318-3.3YD5 MIC5318YD5 Note: For availability on other voltages, please contact Micrel for details. Marking Code 15D 18D 28D 33D DAA QD15 QD18 QD28 QD33 QDAA Output Voltage 1.5V 1.8V 2.8V 3.3V ADJ 1.5V 1.8V 2.8V 3.3V ADJ Temperature Range –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C –40°C to +125°C Package 6-Pin 1.6 x 1.6 Thin MLF® 6-Pin 1.6 x 1.6 Thin MLF® 6-Pin 1.6 x 1.6 Thin MLF® 6-Pin 1.6 x 1.6 Thin MLF® 6-Pin 1.6 x 1.6 Thin MLF® 5-Pin Thin SOT23 5-Pin Thin SOT23 5-Pin Thin SOT23 5-Pin Thin SOT23 5-Pin Thin SOT23 January 2007 3 M9999-011207 Micrel, Inc. MIC5318 Pin Configuration EN 1 GND 2 IN 3 6 5 4 BYP NC OUT ® EN 1 GND 2 IN 3 6 5 4 BYP ADJ OUT ® 6-Pin 1.6mm x 1.6mm Thin MLF (MT) Fixed (Top View) 6-Pin 1.6mm x 1.6mm Thin MLF (MT) Adjustable (Top View) EN GND IN 1 3 2 EN GND IN 1 3 2 4 BYP 5 OUT 4 ADJ 5 OUT 5-Pin Thin SOT23 (D5) Fixed (Top View) 5-Pin Thin SOT23 (D5) Adjustable (Top View) Pin Description Pin No. Thin MLF-6 Fixed 1 2 3 4 5 – 6 HS Pad Pin No. Thin MLF-6 Adj. 1 2 3 4 – 5 6 HS Pad Pin No. Thin SOT23-5 Fixed 3 2 1 5 – – 4 – Pin No. Thin SOT23-5 Adj. 3 2 1 5 – 4 – – Pin Name Pin Function EN GND IN OUT NC ADJ BYP E PAD Enable Input. Active High. High = on, low = off. Do not leave floating. Ground Supply Input. Output Voltage. No connection. Adjust Input. Connect to external resistor voltage divider network. Reference Bypass: Connect external 0.01µF to GND for reduced Output Noise. May be left open. Exposed Heatsink Pad connected to ground internally. January 2007 4 M9999-011207 Micrel, Inc. MIC5318 Absolute Maximum Ratings(1) Supply Voltage (VIN) ..................................0V to +6.5V Enable Input Voltage (VEN)........................0V to +6.5V Power Dissipation, Internally Limited(3) Lead Temperature (soldering, 3sec) ..................260°C Junction Temperature (TJ)................ –40°C to +125°C Storage Temperature (TS) ................ –65°C to +150°C ESD Rating(4) Operating Ratings(2) Supply Voltage (VIN).............................. +2.3V to +6.0V Enable Input Voltage (VEN).............................. 0V to VIN Junction Temperature (TJ) ................. –40°C to +125°C Junction Thermal Resistance Thin MLF-6 (θJA)...................................... 100°C/W TSOT-23-5 (θJA) .....................


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