MT3608 Datasheet – 1.2Mhz Current Mode Step-Up Converter
2A, High Efficiency 1.2Mhz Current Mode Step-Up Converter
MT3608 overview
The MT3608 is a 2A, High Efficiency 1.2Mhz Current Mode Step-Up Converter made by Xi’an Aerosemi Technology, supplied in an SOT23 6-Pin Type package. The absolute maximum ratings table on this page lists the 7 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the MT3608 pinout and maximum ratings, with the full datasheet PDF to preview below or download.
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.
Datasheet
MT3608 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 93% Efficiency
- Available in a 6-Pin SOT23-6 Package
MT3608 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | SW | Power Switch Output. SW is the drain of the internal MOSFET switch. Connect the power inductor and output rectifier to SW. SW can swing between GND and 28V. |
| 2 | GND | Ground Pin |
| 3 | FB | Feedback Input. The FB voltage is 0.6V. Connect a resistor divider to FB. |
| 4 | EN | Regulator On/Off Control Input. A high input at EN turns on the converter, and a low input turns it off. When not used, connect EN to the input supply for automatic startup. |
| 5 | VIN | Input Supply Pin. Must be locally bypassed. |
| 6 | NC | No Connect |
Absolute maximum ratings
| Parameter | Value |
|---|---|
| Power Dissipation | 0.6W |
| Thermal Resistance θJC | 130°C/W |
| Thermal Resistance θJA | 250°C/W |
| Junction Temperature | 160°C |
| Operating Temperature Range | -40°C to 85°C |
| Lead Temperature (Soldering,10s) | 300°C |
| Storage Temperature Range | -65°C to 150°C |
MT3608 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
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