MICREL MIC5200 Datasheet
MIC5200 Micrel
MIC5200
100mA Low-Dropout Voltage Regulator
Preliminary Information
General Description
The MIC5200 is an efficient linear voltage regulator with very
low dropout voltage (typically 17mV at light loads and 200mV
at 100mA), and very low ground current (1mA at 100mA
output), offering better than 1% initial accuracy with a logic
compatible ON/OFF switching input. Designed especially for
hand-held battery powered devices, the MIC5200 is switched
by a CMOS or TTL compatible logic signal. The ENABLE
control may be tied directly to VIN if unneeded. When disabled,
power consumption drops nearly to zero. The ground current
of the MIC5200 increases only slightly in dropout, further
prolonging battery life. Key MIC5200 features include protection against reversed battery, current limiting, and overtemperature shutdown.
The MIC5200 is available in several fixed voltages and
accuracy configurations. Other options are available; contact
Micrel for details.
Features
• High output voltage accuracy
• Variety of output voltages
• Guaranteed 100mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Zero OFF mode current
• Logic-controlled electronic shutdown
• Available in 8-lead SOIC, MM8™ 8-lead MSOP,
and SOT-223 packages
Applications
• Cellular Telephones
• Laptop, Notebook, and Palmtop Computers
• Battery Powered Equipment
• PCMCIA VCC and V
• Bar Code Scanners
• SMPS Post-Regulator/ DC to DC Modules
• High Efficiency Linear Power Supplies
Regulation/Switching
PP
3
Typical Application
Ordering Information
Part Number Voltage Accuracy Junction Temp. Range* Package
MIC5200-3.0BM 3.0 1% –40°C to +125°C SO-8
MIC5200-3.3BM 3.3 1% –40°C to +125°C SO-8
MIC5200-4.8BM 4.85 1% –40°C to +125°C SO-8
MIC5200-5.0BM 5.0 1% –40°C to +125°C SO-8
MIC5200-3.3BMM 3.3V 1% –40°C to +125°C MSOP-8
MIC5200-5.0BMM 5.0V 1% –40°C to +125°C MSOP-8
MIC5200-3.0BS 3.0 1% –40°C to +125°C SOT-223
MIC5200-3.3BS 3.3 1% –40°C to +125°C SOT-223
MIC5200-4.8BS 4.85 1% –40°C to +125°C SOT-223
MIC5200-5.0BS 5.0 1% –40°C to +125°C SOT-223
Other voltages available. Contact Micrel for details.
MIC5200-3.3
utput
1µF
Enable
3-123 July 1998
MIC5200 Micrel
Pin Configuration
OUT IN
OUT
NC
GND
IN
NC
EN
MIC5200-x.xBM
123
IN GND OUT
(SO-8)
MIC5200-x.xBMM
(MSOP-8)
MIC5200-x.xBS
(SOT-223)
EN may be tied directly to V
IN
Pin Description
Pin Number Pin Number Pin Name Pin Function
SOT-223 SO-8, MSOP-8
3 1, 2 OUT Output: Pins 1 and 2 must be externally connected together.
3, 6 NC (not internally connected): Connect to ground plane for lowest thermal
resistance.
2, TAB 4 GND Ground: Ground pin and TAB are internally connected.
5 EN Enable/Shutdown (Input): TTL compatible input. High = enabled;
low = shutdown.
1 7, 8 IN Supply Input: Pins 7 and 8 must be extenally connected together.
Absolute Maximum Ratings
Power Dissipation ............................................... Internally Limited
Lead Temperature (soldering, 5 sec.) .................................. 260°C
Operating Junction Temperature Range............. –40°C to +125°C
Input Supply Voltage................................................ –20V to +60V
Enable Input Voltage................................................ –20V to +60V
Thermal Characteristics
SOT-223 (θJC).....................................................................15°C/W
SO-8 (θJA) ..................................................................... See Note 1
Recommended Operating Conditions
Input Voltage ............................................................... 2.5V to 26V
Operating Junction Temperature Range............. –40°C to +125°C
Enable Input Voltage.................................................... –20V to V
IN
Absolute Maximum Ratings indicate limits beyond which damage
to the device may occur. Electrical specifications do not apply when
operating the device beyond its specified Operating Ratings.
July 1998 3-124
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