ACE717C

High Efficiency 1.2MHz 24V Step-up DC/DC Converter

VER 1.1

1

Description

The ACE717C is a constant frequency, current mode step-up converter intended for small, low

power applications. The ACE717C switches at 1.2MHz and allows the use of tiny, low cost capacitors and

inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life.

The ACE717C includes under-voltage lockout, current limiting, and thermal overload protection to prevent

damage in the event of an output overload.

ACE717C is available in SOT23-6 package that is PB free.

Features



2V to 24V Input Voltage



Up to 24 Output Voltage



Integrated 80mΩ Power MOSFET



1.2MHz Fixed Switching Frequency



Internal 2A Switch Current Limit



Internal Compensation



Thermal Shutdown



Output Adjustable from 0.6V



Available in SOT23-6 Package

Application



ABS Set-Top Boxed



DVB-S/S2

Absolute Maximum Ratings

Parameter

Max

IN, EN Pin Voltage

-0.3V to 24V

SW Pin Voltage

-0.3V to 24V

All Other Pin Voltage

-0.3V to 6V

150°C

-40°C to 85°C

Power Dissipation

SOT23-6

600mW

Thermal Resistance (θ

250°C /W

Thermal Resistance (θ

130°C /W

Storage Temperature (Ts)

-65°C to 150°C

Lead Temperature & Time

260°C, 10Sec