19-3106; Rev 0; 1/08
www.DataSheet4U.com KIT ATION EVALU E L B AVAILA
Low-Noise Step-Up DC-DC Converter
General Descri...
19-3106; Rev 0; 1/08
www.DataSheet4U.com KIT ATION EVALU E L B AVAILA
Low-Noise Step-Up DC-DC Converter
General Description Features
o 90% Efficiency o Adjustable Output from VIN to 18V o 2.4A, 0.15Ω, 22V Power MOSFET o +2.6V to +4.0V Input Range o Pin-Selectable 640kHz or 1.2MHz Switching Frequency o Programmable Soft-Start o Small 8-Pin µMAX Package o Integrated Input Voltage Clamp Circuit
MAX17067
The MAX17067 boost converter incorporates highperformance (at 1.2MHz), current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in 0.15Ω n-channel MOSFET to provide a highly efficient
regulator with fast response. High switching frequency (640kHz or 1.2MHz selectable) allows for easy filtering and faster loop performance. An external compensation pin provides the user flexibility in determining loop dynamics, allowing the use of small, low equivalent-series-resistance (ESR) ceramic output capacitors. The device can produce an output voltage as high as 18V. Soft-start is programmed with an external capacitor, which sets the input-current ramp rate. The MAX17067 is available in a space-saving 8-pin μMAX® package. The ultrasmall package and high switching frequency allow the total solution to be less than 1.1mm high.
Application
LCD Displays
PART MAX17067EUA+
Ordering Information
TEMP RANGE -40°C to +85°C PINPACKAGE 8 μMAX PKG CODE U8+1
Typical Operating Circuit
VIN 2.6V TO 4V
+ Denotes a lead-free package.
Pin Configuration
TOP VIEW
IN VOUT LX COM...