MP3438GTL-P

MP3438 is a high-efficiency, fully integrated, synchronous boost converter. This highly integrated boost converter with a 1.2MHz fixed frequency and a wide input voltage (VIN) range. This starts up from a VIN as low as 2.7V, and can support up to a 2A switching current limit with integrated, low RDS(ON) power MOSFETs. It adopts constant-off-time (COT) control to provide fast transient response. The cycle-by-cycle current limit on the low-side MOSFET (LS-FET) prevents current runaway, and the high-side MOSFET (HS-FET) eliminates the need for an external Schottky diode. It supports an automatic pass-through function when VIN exceeds the set output voltage (VOUT-SET). This function supports high efficiency, even when the input exceeds the regulated output. Typical applications are LCD bias supplies, ADSLs/DSLs, electronic cigarettes, instrumentation equipment, portable applications.

• Full protection features, configurable VIN, undervoltage lockout and overtemperature protection
• 2.7V to 16V start-up input voltage (VST), 0.8V to 16V operating input voltage (VIN)
• Up to 16V output voltage (VOUT), 2A switching current limit
• 91% efficiency for 3.3V VIN to 12V/0.3A
• 1.2MHz fixed switching frequency
• Adaptive constant-off-time (COT) control fast transient response
• Power-save mode (PSM) under light loads
• Automatic pass-through mode when VIN set output voltage (VOUT-SET)
• Overtemperature protection (OTP) and overvoltage protection (OVP)
• SOT583 package