MIC39100-3.3WS TR Micrel Inc, MIC39100-3.3WS TR Datasheet

IC REG LDO 1.0A 1.0% 3.3V SOT223

MIC39100-3.3WS TR

Manufacturer Part Number
MIC39100-3.3WS TR
Description
IC REG LDO 1.0A 1.0% 3.3V SOT223
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC39100-3.3WS TR

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 16V
Voltage - Dropout (typical)
0.41V @ 1A
Number Of Regulators
1
Current - Output
1A (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Other names
MIC39100-3.3WSTR
MIC39100-3.3WSTR
General Description
The MIC39100, MIC39101, and MIC39102 are 1A low-dropout
linear voltage regulators that provide low-voltage, high-current
output from an extremely small package. Utilizing Micrel’s pro-
prietary Super βeta PNP™ pass element, the MIC39100/1/2
offers extremely low dropout (typically 410mV at 1A) and low
ground current (typically 11mA at 1A).
The MIC39100 is a fixed output regulator offered in the
SOT-223 package. The MIC39101 and MIC39102 are fixed
and adjustable regulators, respectively, in a thermally en-
hanced power 8-lead SOIC package.
The MIC39100/1/2 is ideal for PC add-in cards that need to
convert from standard 5V to 3.3V, 3.3V to 2.5V or 2.5V to
1.8V. A guaranteed maximum dropout voltage of 630mV over
all operating conditions allows the MIC39100/1/2 to provide
2.5V from a supply as low as 3.13V and 1.8V from a supply
as low as 2.43V.
The MIC39100/1/2 is fully protected with overcurrent limit-
ing, thermal shutdown, and reversed-battery protection.
Fixed voltages of 5.0V, 3.3V, 2.5V, and 1.8V are available
on MIC39100/1 with adjustable output voltages to 1.24V on
MIC39102.
For other voltages, contact Micrel.
Typical Applications
Super βeta PNP is a trademark of Micrel, Inc.
August 2005
MIC39100/39101/39102
3.3V
V
IN
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
2.5V/1A Regulator
IN
MIC39100
GND
OUT
10µF
tantalum
2.5V
SHUTDOWN
ENABLE
2.5V/1A Regulator with Error Flag
3.3V
V
IN
IN
EN
MIC39101
GND
100k
OUT
FLG
1
Features
• Fixed and adjustable output voltages to 1.24V
• 410mV typical dropout at 1A
• 1A minimum guaranteed output current
• 1% initial accuracy
• Low ground current
• Current limiting and thermal shutdown
• Reversed-battery protection
• Reversed-leakage protection
• Fast transient response
• Low-profile SOT-223 package
• Power SO-8 package
Applications
• LDO linear regulator for PC add-in cards
• PowerPC™ power supplies
• High-efficiency linear power supplies
• SMPS post regulator
• Multimedia and PC processor supplies
• Battery chargers
• Low-voltage microcontrollers and digital logic
R1
1A Low-Voltage Low-Dropout Regulator
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V conversion
10µF
tantalum
MIC39100/39101/39102
Error
Flag
Output
2.5V
SHUTDOWN
ENABLE
1.5V/1A Adjustable Regulator
2.5V
V
IN
IN
EN
MIC39102
GND
OUT
ADJ
M9999-082505-B
R1
R2
10µF
tantalum
Micrel
1.5V

Related parts for MIC39100-3.3WS TR

MIC39100-3.3WS TR Summary of contents

Page 1

... SOT-223 package. The MIC39101 and MIC39102 are fixed and adjustable regulators, respectively thermally en- hanced power 8-lead SOIC package. The MIC39100/1/2 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 630mV over all operating conditions allows the MIC39100/1/2 to provide 2 ...

Page 2

... MIC39101-5.0BM MIC39101-5.0YM MIC39102BM MIC39102YM * RoHS compliant with ‘high-melting solder’ exemption. Pin Configuration OUT 3 FLG 4 MIC39101-x.x Fixed SOIC-8 (M) Pin Description Pin No. Pin No. Pin No. MIC39100 MIC39101 MIC39102 5–8 5–8 TAB M9999-082505 Voltage Junction Temp. Range 1.8V -40°C to +125°C 2.5V -40°C to +125°C 3.3V -40° ...

Page 3

... MIC39100/39101/39102 Absolute Maximum Ratings Supply Voltage (V ) .......................................–20V to +20V IN Enable Voltage (V ) .................................................. +20V EN Storage Temperature (T ) ........................ –65°C to +150°C S Lead Temperature (soldering, 5 sec.) ........................ 260°C ESD, Note 3 Electrical Characteristics 1V 2.25V 25°C, bold values indicate –40°C ≤ OUT EN J Symbol Parameter V Output Voltage ...

Page 4

... MIC39100/39101/39102 Symbol Parameter MIC39102 Only Reference Voltage Adjust Pin Bias Current Reference Voltage ppm/°C Temp. Coefficient Adjust Pin Bias Current Temp. Coefficient Note 1. Exceeding the absolute maximum ratings may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. ...

Page 5

... MIC39100/39101/39102 Typical Characteristics P ower S upply R ejec tion R atio 3.3V OUT OUT C = 10µF OUT 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1k 10k 1M 10 100 100k FREQUENCY (Hz) P ower S upply R ejec tion R atio 3. 2.5V OUT OUT C = 47µF OUT 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 ...

Page 6

... MIC39100/39101/39102 G round C urrent upply V oltage (3. LOAD = SUPPLY VOLTAGE (V) G round C urrent emperature LOAD 15 2.5V 1. -40 - 100 120 TEMPERATURE (°C) E rror F lag P ull- tor LAG HIG H ( LAG LOW 1 (F AULT ) 0 0.01 0 100 1000 10000 RESISTANCE (kΩ) M9999-082505 G round C urrent emperature 1.0 ...

Page 7

... MIC39100/39101/39102 Functional Characteristics August 2005 7 Micrel M9999-082505-B ...

Page 8

... E N MIC39101 MIC39101 Fixed Regulator with Flag and Enable Block Diagram MIC39102 M9999-082505 OV I 1.240V 18V Thermal Shut- down GND MIC39100 Fixed Regulator Block Diagram 1.180V 1.240V Ref. Thermal Shut- down 1.240V Ref. Thermal Shut- down MIC39102 Adjustable Regulator Block Diagram 8 ...

Page 9

... PNP based regulators a distinct advantage over older, NPN based linear regulators. Minimum Load Current The MIC39100/1/2 regulator is specified between finite loads. If the output current is too small, leakage currents dominate and the output voltage rises. A 10mA minimum load current is necessary for proper regulation. ...

Page 10

... MIC39100/39101/39102 Adjustable Regulator Design MIC39102 V IN OUT IN EN ADJ ENABLE SHUTDOWN GND   V 1.240V 1 OUT  R2 Figure 2. Adjustable Regulator with Resistors The MIC39102 allows programming the output voltage any- where between 1.24V and the 16V maximum operating rating of the family. Two resistors are used. Resistors can be quite large 1MΩ ...

Page 11

... MIC39100/39101/39102 Δ – T J(max) A(max 125°C J(max maximum ambient operating temperature A(max) For example, the maximum ambient temperature is 50°C, the ΔT is determined as follows: ΔT = 125°C – 50°C ΔT = 75°C Using Figure 4, the minimum amount of required copper can be determined based on the required power dissipation. Power ...

Page 12

... MIC39100/39101/39102 Package Information 2.41 (0.095) 2.21 (0.087) 0.10 (0.004) 0.02 (0.0008) 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. ...

Related keywords