MT3608

Description

AEROSEMI

High Efficiency 1.2MHz

2A Step Up Converter

FEATURES

• Integrated 80mΩ Power MOSFET
• 2V to 24V Input Voltage
• 1.2MHz Fixed Switching Frequency
• Internal 4A Switch Current Limit
• Adjustable Output Voltage
• Internal Compensation
• Up to 28V Output Voltage
• Automatic Pulse Frequency Modulation

Mode at Light Loads

• up to 97% Efficiency
• Available in a 6-Pin SOT23-6 Package

APPLICATIONS

• Battery-Powered Equipment
• Set-Top Boxed
• LCD Bais Supply
• DSL and Cable Modems and Routers
• Networking cards powered from PCI

or PCI express slots

TYPICAL APPLICATION

Figure 1. Basic Application Circuit

The MT3608 is a constant frequency, 6-pin SOT23

current mode step-up converter intended for small,

low power applications. The MT3608 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 MT3608 features automatic shifting to pulse

frequency modulation mode at light loads. The

MT3608 includes under-voltage lockout, current

limiting, and thermal overload protection to prevent

damage in the event of an output overload. The

MT3608 is available in a small 6-pin SOT-23  package.