AME, Inc.
1A Low Dropout
Positive Voltage Regulator
AME1117
nGeneral Description
nFunctional Block Diagram
TheAME1117 is a 1A low-dropout positive voltage regu-
lator. It is available in fixed and adjustable output voltage
versions. Overcurrent and thermal protection are integrated
onto the chip. Output current will limit as while it reaches
the pre-set current or temperature limit. The dropout volt-
age is specified at 1.4V Maximum at full rated output
current. The AME1117 series provides excellent regula-
tion over line, load and temperature variations.
Input
Current
Limiting
Amplifier
Thermal
Protection
Output
nFeatures
Error
Amp.
lLow Dropout Voltage ----- 1.4V at 1A
lAdjustable or Fixed Voltages:
1.8V, 2.5V, 3.3V, 5.0V
ADJ/COM
Bandgap
Reference
lAdjust Pin Current Less than 120mA
lOvercurrent Protection
lThermal Protection
lAvailable in TO-220, TO-252, SOT-223
nTypical Application
lAll AME's Lead Free Products Meet RoHS
Standards
AME1117 V
VIN
OUT
GND
nApplications
Load
10mF Tan
10mF Tan
lHigh Efficiency Linear Regulators
lPost Regulators for Switching Supplies
l5V to 3.3V Voltage Converter
lBattery Charger
Rev.S.02
1