19-2221; Rev 1; 3/04
1.
4MHz SOT23 Current-Mode Step-Up DC-DC Converter MAX1896
General Description
The MAX1896 step-up DC-DC converter incorporates high-performance current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry and an internal 0.
7Ω N-channel MOSFET to provide a highly efficient
regulator with fast response.
High switching frequency (1.
4MHz) allows fast loop response and easy filtering with small components.
The MAX1896 can produce an output voltage as high as 13V from an input as low as 2.
6V.
Soft-start is programmable with an external capacitor, which sets the input current ramp rate.
In shutdown mode, current consumption is reduced to 0.
01µA.
The MAX1896 is availab...