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AVANTICS - AX1117 Series Specification No.: 050309-FE0005
AX1117 Series
1.2A Low Dropout Positive Voltage Regulator
Features
• Low Dropout Voltage 1.2V at 1.2A
• Adjustable or Fixed Voltage (1.8V, 2.5V, 3.3V, 5V)
• Over Current Protection
• Thermal Overload Protection
• Maximum Line Regulation 0.45%
• Maximum Load Regulation 0.4%
• Adjust Pin Current Less Than 90 uA
Applications
• SCSI-2 Active Termination
• High Efficiency Linear Regulators
• 5V to 3.3V Voltage Converter
• Battery Charger
• Battery Management Circuits For Notebook And Palmtop PCs
• Core Voltage Supply: FPGA, PLD, DSP, CPU
General Description
The AX1117 Series are available in fixed and adjustable output voltage versions. Over current and thermal overload protection
are integrated onto the chip. Output current will decrease while it reaches the preset current or temperature limit. The dropout
voltage is specified at 1.2V Maximum at full rated output current. AX1117 Series provide excellent regulation over variations due
to changes in line, load and temperature. AX1117 Series are three terminal regulators and available in popular packages.
Device Selection Guide
Device Output Voltage Package Device Output Voltage Package
AX1117M-Adj 1.3V to 4V AX1117J-Adj 1.3V to 4V
AX1117M-Fix 1.8V, 2.5V, 3.3V, 5V
SOT-89
AX1117J-Fix 1.8V, 2.5V, 3.3V, 5V
TO-252
AX1117SJ-Adj 1.3V to 4V AX1117E-Adj 1.3V to 4V
AX1117SJ-Fix 1.8V, 2.5V, 3.3V, 5V
SOT-223
AX1117E-Fix 1.8V, 2.5V, 3.3V, 5V
TO-220AB
Absolute Maximum Ratings
Parameter Symbol Maximum Units
Input Voltage V
IN
20 V
Power Dissipation P
D
Internally Limited * W
Operating Junction Temperature Range T
OPR
0 To +125 °C
Storage Temperature Range T
STG
-65 To +150 °C
Lead Temperature (Soldering) 5 Sec T
LEAD
260 °C
Electrostatic Discharge Sensitivity 2 KV/Min
*: SOT-223: 0.9W(Max.), SOT-89: 0.6W(Max.), TO-252: 0.9W(Max.), TO-220: 2.1W(Max.)
AX1117 Series Pin Assignment
3-Lead Plastic SOT-223
Package Code: SJ
Pin 1: ADJ/GND
Pin 2 & Tab: V
OUT
Pin 3: V
IN1
2
3
Tab
3-Lead Plastic SOT-89
Package Code: M
Pin 1: ADJ/GND
Pin 2: V
OUT
Pin 3: V
IN
1
2
3
3-Lead Plastic TO-252
Package Code: J
Pin 1: ADJ/GND
Pin 2 & Tab: V
OUT
Pin 3: V
IN
1
2
3
Tab
3-Lead Plastic TO-220AB
Package Code: E
Pin 1: ADJ/GND
Pin 2 & Tab: V
OUT
Pin 3: V
IN
1
2
3
Tab