Analog Devices MAX17062 Product Info

• 90% Efficiency
• Adjustable Output from V_IN to 20V
• 2.6V to 5.5V Input Supply Range
• Input Supply Undervoltage Lockout
• Pin-Programmable 640kHz/1.2MHz Switching Frequency
• Programmable Soft-Start
• Improved EMI
• FB Regulation Voltage Tolerance < 1%
• Small 10-Pin TDFN Package
• Thermal-Overload Protection

The MAX17062 is a high-performance step-up DC-DC converter that provides a regulated supply voltage for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). The MAX17062 incorporates current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in n-channel power MOSFET to achieve high efficiency and fast-transient response.

Users can select 640kHz or 1.2MHz operation using a logic input pin (FREQ). The high switching frequencies allow the use of ultra-small inductors and low-ESR ceramic capacitors. The current-mode architecture provides fast transient response to pulsed loads. A compensation pin (COMP) gives users flexibility in adjusting loop dynamics. The 22V internal MOSFET can generate output voltages up to 20V from an input voltage between 2.6V and 5.5V. Soft-start slowly ramps the input current and is programmed with an external capacitor.

The MAX17062 is available in a 10-pin TDFN package.

Applications

• LCD Monitor Panels
• LCD TV Panels
• Notebook Computer Displays