MIC39100/39101/39102
Micrel
MIC39100/39101/39102
1A Low-Voltage Low-Dropout Regulator
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. Utiliz-
ing Micrel鈥檚 proprietary Super
尾eta
PNP鈩?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 SOP (small outline 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 limiting,
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.
Features
鈥?Fixed and adjustable output voltages to 1.24V
鈥?410mV typical dropout at 1A
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V conversion
鈥?1A minimum guaranteed output current
鈥?1% initial accuracy
鈥?Low ground current
鈥?Current limiting and thermal shutdown
鈥?Reversed-battery protection
鈥?Reversed-leakage protection
鈥?Fast transient response
鈥?Low-profile SOT-223 package
鈥?Power SO-8 package
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
LDO linear regulator for PC add-in cards
PowerPC鈩?power supplies
High-efficiency linear power supplies
SMPS post regulator
Multimedia and PC processor supplies
Battery chargers
Low-voltage microcontrollers and digital logic
For other voltages, contact Micrel.
Ordering Information
Part Number
MIC39100-1.8BS
MIC39100-2.5BS
MIC39100-3.3BS
MIC39100-5.0BS
MIC39101-1.8BM
MIC39101-2.5BM
MIC39101-3.3BM
MIC39101-5.0BM
MIC39102BM
Voltage
1.8V
2.5V
3.3V
5.0V
1.8V
2.5V
3.3V
5.0V
Adj.
Junction Temp. Range
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
鈥?0掳C to +125掳C
Package
SOT-223
SOT-223
SOT-223
SOT-223
SOP-8
SOP-8
SOP-8
SOP-8
SOP-8
Typical Applications
100k
V
IN
3.3V
MIC39100
IN
OUT
GND
2.5V
10碌F
tantalum
V
IN
3.3V
ENABLE
SHUTDOWN
MIC39101
IN
OUT
R1
EN
FLG
GND
Error
Flag
Output
2.5V
10碌F
tantalum
V
IN
2.5V
ENABLE
SHUTDOWN
MIC39102
IN
OUT
R1
EN
ADJ
GND
R2
1.5V
10碌F
tantalum
2.5V/1A Regulator
Super
尾eta
PNP is a trademark of Micrel, Inc.
2.5V/1A Regulator with Error Flag
1.5V/1A Adjustable Regulator
Micrel, Inc. 鈥?1849 Fortune Drive 鈥?San Jose, CA 95131 鈥?USA 鈥?tel + 1 (408) 944-0800 鈥?fax + 1 (408) 944-0970 鈥?http://www.micrel.com
June 2000
1
MIC39100/39101/39102
MIC39102BM 产品属性
95
集成电路 (IC)
PMIC - 稳压器 - 线性
-
正，可调式
1.24 V ~ 16 V
2.25 V ~ 16 V
0.41V @ 1A
1
1A（最小）
-
-40°C ~ 125°C
表面贴装
8-SOIC（0.154"，3.90mm 宽）
8-SOIC
管件
MIC39102BM相关型号PDF文件下载
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