MIC5216-3.3BM5TR Micrel, MIC5216-3.3BM5TR Datasheet

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MIC5216-3.3BM5TR

Manufacturer Part Number
MIC5216-3.3BM5TR
Description
ic reg ldo 500ma 1% 3.3v sot23-5... ic reg ldo 3.3v .5a sot23-5...
Manufacturer
Micrel
Datasheet
General Description
The MIC5216 is an efficient linear voltage regulator with
high peak output current capability, very low dropout
voltage, and better than 1% output voltage accuracy.
Dropout is typically 10mV at light loads and less than
500mV at full load.
The MIC5216 is designed to provide a peak output current
for startup conditions where higher inrush current is
demanded. It features a 500mA peak output rating.
Continuous output current is limited only by package and
layout.
The MIC5216 has an internal undervoltage monitor with a
flag output. It also can be enabled or shutdown by a
CMOS or TTL compatible signal. When disabled, power
consumption drops nearly to zero. Dropout ground current
is minimized to help prolong battery life. Other key features
include
overtemperature shutdown, and low noise performance.
The MIC5216 is available in fixed output voltages in
space-saving SOT-23-5 and MM8™ 8-pin power MSOP
packages. For higher power requirements see the
MIC5209 or MIC5237.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
MM8 and Micrel Mini 8 are trademarks of Micrel, Inc.
March 2007
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
reversed-battery
5V Low-Noise Regulator
protection,
current
limiting,
Features
• Error Flag indicates undervoltage fault
• Guaranteed 500mA-peak output over the full operating
• Low 500mV maximum dropout voltage at full load
• Extremely tight load and line regulation
• Tiny SOT-23-5 and MM8™ power MSOP-8 package
• Low-noise output
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
• CMOS/TTL-compatible enable/shutdown control
• Near-zero shutdown current
Applications
• Laptop, notebook, and palmtop computers
• Cellular telephones and battery-powered equipment
• Consumer and personal electronics
• PC Card V
• SMPS post-regulator/dc-to-dc modules
• High-efficiency linear power supplies
408
temperature range
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
500mA-Peak Output LDO Regulator
CC
and V
3.3V Low-Noise Regulator
MIC5216
PP
regulation and switching
M9999-032307

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MIC5216-3.3BM5TR Summary of contents

Page 1

... Dropout is typically 10mV at light loads and less than 500mV at full load. The MIC5216 is designed to provide a peak output current for startup conditions where higher inrush current is demanded. It features a 500mA peak output rating. Continuous output current is limited only by package and layout ...

Page 2

... LH25 MIC5216-3.3BM5 LH33 MIC5216-3.6BM5 LH36 MIC5216-5.0BM5 LH50 March 2007 Part Number Pb-Free Marking MIC5216-2.5YMM MIC5216-3.3YMM MIC5216-5.0YMM MIC5216-2.5YM5 LH25 MIC5216-3.3YM5 LH33 MIC5216-3.6YM5 LH36 MIC5216-5.0YM5 LH50 2 Junction Voltage Package Temp. Range 2.5V –40° to +125°C 8-Pin MSOP 3 ...

Page 3

... Ground: MSOP-8 pins 5 through 8 are internally connected. OUT Regulator Output EN Enable (Input): CMOS compatible control input. Logic high = enable; logic low or open = shutdown. FLG Error Flag (Output): Open-Collector output. Active low indicates an output undervoltage condition. 3 MIC5216 MIC5216-xxBM5/YM5 SOT-23-5 Fixed Voltages M9999-032307 ...

Page 4

... OUT V ≥ 3.0V 500mA EN OUT V ≤ 0. ≤ 0.18V EN Frequency = 120Hz OUT Note 50mA 2.2µF OUT OUT 4 MIC5216 )................................. 2.5V to 12V IN )..................................... ........................ –40°C to +125°C J ).......................................... Note 1 JA < +125°C, unless noted. J Min Typ Max Units – –2 2 ppm/°C 40 0.009 ...

Page 5

... FLAG , and the ambient temperature The maximum allowable power dissipation at any ambient temperature θ . Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the 12V for t = 10ms MIC5216 Min Typ Max Units 0 0.18 2.0 V 0.01 –1 µ ...

Page 6

... FREQUENCY (Hz) Noise Performance 10 10mA 1µF OUT 1 0.1 500mA Pending 0.01 0.001 OUT 0.0001 1E+11E+21E+3 1E+41E+5 1E+61E+7 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) 6 MIC5216 Power Supply Rejection Ratio -20 OUT -40 - 100mA -80 OUT C = 1µF OUT ...

Page 7

... Micrel, Inc. Block Diagram March 2007 MIC5216 Fixed Regulator with External Components 7 MIC5216 M9999-032307 ...

Page 8

... The capacitor can be reduced to 0.47µF for current below 10mA or 0.33µF for currents below 1mA. No-Load Stability The MIC5216 will remain stable and in regulation with no load (other than the internal voltage divider) unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications. ...

Page 9

... This device will deliver 500mA start-up current from a SOT-23-5 or MM8 package, allowing high power from a very low profile device. The MIC5216 can subsequently provide output current that is only limited by the thermal characteristics of the device. You can obtain higher continuous currents from the device with the proper design ...

Page 10

... First, calculate the power dissipation of the device at 50mA. We will use the MIC5216-3.3BM5 with 5V input voltage as our example. P × 50mA = (5V – 3.3V) × 50mA + 5V × 650µA D ° ...

Page 11

... Micrel, Inc. ° Ambient Figure 3. MIC5216-x.xBMM (MSOP-8) on Minimum Recommended Footprint ° Ambient Figure 4. MIC5216-x.xBMM (MSOP- 1-inch The total power dissipation of the device under these conditions is the sum of the two power dissipation figures × 50mA + P × 500mA ...

Page 12

... Micrel, Inc. Package Information March 2007 8-Pin MSOP (MM) SOT-23-5 (M5) 12 MIC5216 M9999-032307 ...

Page 13

... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully March 2007 indemnify Micrel for any damages resulting from such use or sale. © 2000 Micrel, Incorporated. 13 MIC5216 M9999-032307 ...

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