Product Descriptions
The EV0056 evaluation board is designed for backlights using white LEDs. It implements MPS’ MP1518 fixed frequency step-up converter.
The MP1518 is a 6 pin thin SOT23 step up converter designed for driving up to 6 series white LEDs from a single cell Lithium Ion battery. The MP1518 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. It’s low 100mV feedback voltage reduces power loss and improves efficiency. To prevent damage due to an open circuit condition, the OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present.
The MP1518 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP1518 is available in a small 6 lead TSOT23 package.
Product Features
On Board Power MOSFET
Drives up to 6 Series White LEDs
Up to 86 percent Efficiency
Over 1MHz Fixed Switching Frequency
Open Load Shutdown
Low 100mV Feedback Voltage
Soft Start/PWM Dimming
UVLO, Thermal Shutdown
Internal Current Limit
Product Applications
Cell Phones
Handheld Computers and PDAs
Digital Still and Video Cameras
Small LCD Displays
Product Specification
| Attribute | Attribute value |
| ANSM-Part# | ANSM-MP1518DJ-LF-Z |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| LED Drivers | |
| Manufacturer | - |
| Series | - |
| Packaging | Tape & Reel (TR) |
| Part Status | Active |
| Type | DC DC Regulator |
| Topology | Step-Up (Boost) |
| Internal Switch(s) | Yes |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 2.5V |
| Voltage - Supply (Max) | 6V |
| Voltage - Output | 25V |
| Current - Output / Channel | 350mA (Switch) |
| Frequency | 1.3MHz |
| Dimming | Analog, PWM |
| Applications | Backlight |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-6 Thin, TSOT-23-6 |
| Supplier Device Package | TSOT-23-6 |
| Base Product Number | MP1518 |
Product Photos
For more product information, please download the PDF
