MIC5209-3.3YS Micrel Inc, MIC5209-3.3YS Datasheet

IC REG LDO 500MA 3.3V SOT-223

MIC5209-3.3YS

Manufacturer Part Number
MIC5209-3.3YS
Description
IC REG LDO 500MA 3.3V SOT-223
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC5209-3.3YS

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.35V @ 500mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Output Voltage Fixed
3.3V
Dropout Voltage Vdo
10mV
No. Of Pins
3
Output Current
500mA
Operating Temperature Range
-40°C To +125°C
Msl
MSL 3 - 168 Hours
Termination Type
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
576-3516-5
MIC5209-3.3YS

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General Description
The MIC5209 is an effi cient linear voltage regulator with very
low dropout voltage, typically 10mV at light loads and less
than 500mV at full load, with better than 1% output voltage
accuracy.
Designed especially for hand-held, battery-powered devices,
the MIC5209 features low ground current to help prolong
battery life. An enable/shutdown pin on SO-8 and TO-263-
5 versions can further improve battery life with near-zero
shutdown current.
Key features include reversed-battery protection, current
limiting, overtemperature shutdown, ultra-low-noise capability
(SO-8 and TO-263-5 versions), and availability in thermally
effi cient packaging. The MIC5209 is available in adjustable
or fi xed output voltages.
For space-critical applications where peak currents do not
exceed 500mA, see the MIC5219.
Typical Applications
June 2006
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
tantalum
V
5V
V
SHUTDOWN
6V
OUT
2.2µF
IN
Ultra-Low-Noise 5V Regulator
≥ 3.0V
ENABLE
V
3.3V Nominal-Input Slot-1
IN
0.1µF
MIC5209-2.5BS
Power Supply
1
2
1
2
3
4
470pF
(OPTIONAL)
MIC5209-5.0BM
1
3
Features
• Meets Intel
• Guaranteed 500mA output over the full operating
• Low 500mV maximum dropout voltage at full load
• Extremely tight load and line regulation
• Thermally-effi cient surface-mount package
• Low temperature coeffi cient
• Current and thermal limiting
• Reversed-battery protection
• No-load stability
• 1% output accuracy
• Ultra-low-noise capability in SO-8 and TO-263-5
• Ultra-small 3mm x 3mm MLF™ package
Applications
• Pentium II Slot 1 and Slot 2 support circuits
• Laptop, notebook, and palmtop computers
• Cellular telephones
• Consumer and personal electronics
• SMPS post-regulator/dc-to-dc modules
• High-effi ciency linear power supplies
22µF
tantalum
temperature range
2.5V ±1%
V
500mA Low-Noise LDO Regulator
OUT
8
7
6
5
®
®
®
Slot 1 and Slot 2 requirements
Slot 1 and Slot 2 requirements
MIC5209
M9999-060906

MIC5209-3.3YS Summary of contents

Page 1

... General Description The MIC5209 is an effi cient linear voltage regulator with very low dropout voltage, typically 10mV at light loads and less than 500mV at full load, with better than 1% output voltage accuracy. Designed especially for hand-held, battery-powered devices, the MIC5209 features low ground current to help prolong battery life ...

Page 2

... Ordering Information Part Number Voltage MIC5209-2.5BS 2.5V MIC5209-2.5YS 2.5V MIC5209-3.0BS 3.0V MIC5209-3.0YS 3.0V MIC5209-3.3BS 3.3V MIC5209-3.3YS 3.3V MIC5209-3.6BS 3.6V MIC5209-3.6YS 3.6V MIC5209-4.2BS 4.2V MIC5209-4.2YS 4.2V MIC5209-5.0BS 5.0V MIC5209-5.0YS 5.0V MIC5209-1.8BM* 1.8V MIC5209-1.8YM* 1.8V MIC5209-2.5BM 2.5V MIC5209-2.5YM 2.5V MIC5209-3.0BM 3.0V MIC5209-3.0YM 3.0V MIC5209-3 ...

Page 3

... Adjust (Input): Feedback input. Connect to resistive voltage-divider network. 3 VIN VIN 2 7 GND 5209 YWW VOUT 3 6 ADJ VOUT MIC5209YML 8-Pin 3x3 MLF Adjustable Voltages 5 BYP 4 OUT 3 GND MIC5209-x.xBU TO-263-5 Fixed Voltages 5 ADJ 4 OUT 3 GND MIC5209BU TO-263-5 Adjustable Voltage Part Identification M9999-060906 ...

Page 4

Absolute Maximum Ratings Supply Input Voltage (V ) ..............................–20V to +20V IN Power Dissipation (P ) ..........................Internally Limited D Junction Temperature ( all except 1.8V ...................................... –40°C to +125°C 1.8V only ................................................... 0°C to +125°C Lead Temperature (soldering, ...

Page 5

ENABLE Input V Enable Input Logic-Low Voltage Enable Input Logic-Low Voltage Enable Input Logic-Low Voltage Enable Input Logic-Low Voltage ENL ENL ENL I Enable Input Current Enable Input Current Enable Input Current Enable Input Current ENL ENL ENL I ENH ...

Page 6

... Ref. Ref REF REF REF EN Current Limit Thermal Shutdown MIC5209-x.xBM/U Ultra-Low-Noise Fixed Regulator Bandgap V Ref. Ref. Ref REF REF REF Current Limit Thermal Shutdown MIC5209BM/U [adj.] GND Ultra-Low-Noise Adjustable Regulator 6 OUT V OUT C OUT OUT V OUT C OUT GND OUT V OUT C OUT R1 ADJ R2 ...

Page 7

Typical Characteristics Power Supply Rejection Ratio -20 OUT -40 -60 - 100µA OUT C = 1µF OUT -100 10 100 1k 10k 100k 1M 10M 1E+1 1E+21E+3 1E+41E+5 1E+61E+7 FREQUENCY ...

Page 8

Dropout Characteristics 3 =100µA 3.0 2.5 2.0 1.5 1 =500mA 0 INPUT VOLTAGE (V) Ground Current vs. Supply Voltage =500mA INPUT ...

Page 9

... No-Load Stability The MIC5209 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 10

... OUT OUT ADJ ADJ GND 5–8 Figure 3. Low-Noise Adjustable Voltage Regulator The MIC5209BM/U can be adjusted to a specifi c output volt- age by using two external resistors (Figure 3). The resistors set the output voltage based on the equation: R2       ...

Page 11

Considering worst case tolerances, the power dissipation could be as high as: (V – × I IN(max) OUT(max) OUT [(3.6V – 2.375V) × 320mA] + (3.6V × 4mA 407mW D Using the maximum junction temperature of ...

Page 12

Package Information M9999-060906 SOT-223 (S) 8-Pin SOIC (M) 12 June 2006 ...

Page 13

... MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifi cations at any time without notifi cation to the customer. ...

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