LM39100 Datasheet, PDF (1/9 Pages) HTC Korea TAEJIN Technology Co. – 1A Low-Voltage Low-Dropout Regulator

1A Low-Voltage Low-Dropout Regulator
FEATURES
•Fixed and adjustable output voltages to 1.24V
•410mV typical dropout at 1A
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V or 1.5V conversion
•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
LM39100/39101/39102
SOT-223
LM39100-X.X Fixed
SOP-8
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
PIN DESCRIPTION
Enable
(Input)
CMOS-compatible control input.
Logic high = enable, logic
Logic low or open = shutdown
IN Supply (Input)
OUT Regulator Output
FLG Flag (Output): Open-collector error flag output.
Adjustment Input: Feedback input.
ADJ Connect to resitive voltage-divider network
Connect to resitive voltage-divider network
GND Ground
ORDERING INFORMATION
Device
Marking
Package
LM39100- X.X
LM39100-X.X
SOT-223
LM39101-X.X
LM39101-X.X
SOP-8
LM39102-Adj
LM39102-Adj
SOP-8
DESCRIPTION
* X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V
The LM39100, LM39101, and LM39102 are 1A low-dropout linear voltage regulators that provide low-
voltage,high-current output from an extremely small package.
The LM39100/1/2 offers extremely low dropout (typically 410mVat 1A) and low ground current (typically
12mA at 1A).
The LM39100 is a fixed output regulator offered in theSOT-223 package. The LM39101 and LM39102 are
fixedand adjustable regulators, respectively, in a thermally en-hanced power 8-lead SOP (small outline
package).
The LM39100/1/2 is ideal for PC add-in cards that need toconvert from standard 5V to 3.3V, 3.3V to 2.5V
or 2.5V to1.8V. A guaranteed maximum dropout voltage of 630mV overall operating conditions allows the
LM39100/1/2 to provide2.5V from a supply as low as 3.13V and 1.8V from a supplyas low as 2.43V.
The LM39100/1/2 is fully protected with over current limiting,thermal shutdown, and reversed-battery
protection. Fixed voltages of 5.0V, 3.3V, 2.5V,1.8V and 1.5V are available on LM39100/1 with adjustable
output voltages to 1.24V on LM39102.
HTC
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