BM1117
GENERAL DESCRIPTION
The BM1117 series of adjustable and fixed voltage regulators are designed to provide 1A
output current and to operate down to 1V input-to-output differential. The dropout voltage of the
device is guaranteed maximum 1.3V at maximum output current, decreasing at lower load
currents.
On-chip trimming adjusts the reference voltage to within 1% accuray. Current limit is also
trimmed, minimizing the stress under overload conditions on both the regulator and power
source circuitry.
The BM1117 devices are pin compatible with other three-terminal SCSI regulators and are
offered in the low profile surface mount SOT-223 package and in the TO-252 (DPAK) plastic
package.
FEATURES
APPLICATIONS
Three Terminal Adjustable or Fixed Voltages*
1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V
Output Current of 1A
Operates Down to 1V Dropout
Line Regulation: 0.2% Max.
Load Regulation: 0.4% Max.
SOT-223 and TO-252 package available
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
5V to 3.3V Linear Regulator
Power Management for Notebook
Battery Chargers
Battery Powered Instrumentation
Active SCSI Terminators
ORDERING INFORMATION
PACKAGE TYPE
OPERATING JUNCTION
TO-252
SOT-223
TEMPERATURE RANGE
BM1117-ADJ
BM1117-ADJ
0 to 125° C
BM1117-1.5
BM1117-1.5
0 to 125° C
BM1117-1.8
BM1117-1.8
0 to 125° C
BM1117-2.5
BM1117-2.5
0 to 125° C
BM1117-2.85
BM1117-2.85
0 to 125° C
BM1117-3.3
BM1117-3.3
0 to 125° C
BM1117--5.0
BM1117-5.0
0 to 125° C
*For additional available fixed voltages contact factory.
PIN DESCRIPTIONS
FIXED
VERSION
1- Ground
2- VOUT
3- VIN
ADJUSTABLE
VERSION
1- Adjust
2- VOUT
3- VIN
SOT-223 Top View
123
TO-252 FRONT VIEW
3
TAB IS
OUTPUT
2
1
BOOKLY MICRO ELECTRONIC LIMITED CORP.