MIC5219YM5 Micrel Semiconductor, MIC5219YM5 Datasheet

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MIC5219YM5

Manufacturer Part Number
MIC5219YM5
Description
Manufacturer
Micrel Semiconductor
Datasheets

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Part Number
Manufacturer
Quantity
Price
Part Number:
MIC5219YM5
Manufacturer:
Micrel Inc
Quantity:
35 146
Part Number:
MIC5219YM5 TR
Manufacturer:
MICREL
Quantity:
1 345
Part Number:
MIC5219YM5TR
Manufacturer:
MICREL
Quantity:
5 186
MM8 is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc..
General Description
The MIC5219 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 MIC5219 is designed to provide a peak output current for
start-up 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 MIC5219 can be enabled or shut down 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 reversed-
battery protection, current limiting, overtemperature shutdown,
and low noise performance with an ultra-low-noise option.
The MIC5219 is available in adjustable or fixed output volt-
ages in the space-saving 6-pin (2mm × 2mm) MLF
(2mm × 2mm) Thin MLF
MSOP packages. For higher power requirements see the
MIC5209 or MIC5237.
All support documentation can be found on Micrel’s web site
at www.micrel.com.
June 2009
Typical Applications
SHUTDOWN
SH U TD OWN
ENABLE
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
E N A B L E
V
OUT
V
tantalum
IN
Ultra-Low-Noise Regulator (Fixed)
6V
5V
V
EN
2.2µF
IN
5V Ultra-Low-Noise Regulator
®
470pF
1
2
3
4
MIC5219-5.0BMM
SOT-23-5 and MM8
MIC5219-x.xYM L
1
2
3
6
5
4
8
7
6
5
C
(optional)
BYP
®
8-pin power
®
, 6-pin
C
OUT
V
OUT
1
Features
• 500mA output current capability
• Low 500mV maximum dropout voltage at full load
• Extremely tight load and line regulation
• Tiny SOT-23-5 and MM8™ power MSOP-8 package
• Ultra-low-noise output
• Low temperature coefficient
• Current and thermal limiting
• Reversed-battery 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
SHUTDOWN
ENABLE
SOT-23-5 package - 500mA peak
2mm×2mm MLF
2mm×2mm Thin MLF
continuous
MSOP-8 package - 500mA continuous
500mA-Peak Output LDO Regulator
SH U TD OWN
Ultra-Low-Noise Regulator (Adjustable)
E N A B L E
V
EN
IN
3.3V Ultra-Low-Noise Regulator
V
CC
IN
4V
and V
MIC5219-3.3BM5
MIC5219
®
PP
1
2
3
package - 500mA continuous
regulation and switching
MIC5219YMT
1
2
3
®
package - 500mA
4
5
6
5
4
470pF
470pF
2.2µF
tantalum
V
OUT
M0371-061809
R1
R2
3.3V
+
2.2µF
V
OUT

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