REG1117A/2K5 Power Regulator IC LDO Voltage Regulators 800mA & 1A LDO
digital voltage regulator ic
,electronic voltage regulator circuit
REG1117A/2K5 Power Regulator IC LDO Voltage Regulators 800mA & 1A LDO
FEATURES
D FIXED AND ADJUSTABLE VERSIONS D 2.85V MODEL FOR SCSI-2 ACTIVE TERMINATION
D OUTPUT CURRENT:
REG1117: 800mA max
REG1117A: 1A max
D OUTPUT TOLERANCE: +1% max D DROPOUT VOLTAGE:
REG1117: 1.2V max at IO = 800mA
REG1117A: 1.3V max at IO = 1A
D INTERNAL CURRENT LIMIT
D THERMAL OVERLOAD PROTECTION
D SOT-223 AND DDPAK SURFACE-MOUNT PACKAGES
APPLICATIONS
D SCSI-2 ACTIVE TERMINATION
D HAND-HELD DATA COLLECTION DEVICES D HIGH EFFICIENCY LINEAR REGULATORS D BATTERY-POWERED INSTRUMENTATION D BATTERY MANAGEMENT CIRCUITS FOR
NOTEBOOK AND PALMTOP PCs
D CORE VOLTAGE SUPPLY: FPGA, PLD, DSP, CPU
DESCRIPTION
The REG1117 is a family of easy-to-use three-terminal voltage regulators. The family includes a variety of fixed- and adjustable-voltage versions, two currents (800mA and 1A) and two package types (SOT-223 and DDPAK). See the chart below for available options.
Output voltage of the adjustable versions is set with two external resistors. The REG1117 low dropout voltage allows its use with as little as 1V input-output voltage differential.
Laser trimming assures excellent output voltage accuracy without adjustment. An NPN output stage allows output stage drive to contribute to the load current for maximum efficiency.
|
800mA |
1A |
|||
|
VOLTAGE |
SOT-223 |
DDPAK |
SOT-223 |
DDPAK |
|
1.8V |
n |
n |
||
|
2.5V |
n |
n |
||
|
2.85V |
n |
|||
|
3.3V |
n |
n |
||
|
5V |
n |
n |
||
|
Adjustable |
n |
n |
n |
|
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