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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

1 2

3

Tab

3-Lead Plastic SOT-89

Package Code: M

Pin 1: ADJ/GND

1 2

3

3-Lead Plastic TO-252

Package Code: J

Pin 1: ADJ/GND

1

2

3

Tab

3-Lead Plastic TO-220AB

Package Code: E

Pin 1: ADJ/GND

1 2

3

Tab