Datasheet Maxim MAX1595EUA50+ — 数据表

19-2107; Rev 3; 10/11 Regulated 3.3V/5.0V Step-Up/Step-Down
Charge Pump
The MAX1595 charge-pump regulator generates either
3.3V or 5V from a 1.8V to 5.5V input. The unique control
architecture allows the regulator to step up or step down
the input voltage to maintain output regulation. The
1MHz switching frequency, combined with a unique
control scheme, allows the use of a ceramic capacitor
as small as 1µF for 125mA of output current. The complete regulator requires three external capacitors—no
inductor is needed. The MAX1595 is specifically
designed to serve as a high-power, high-efficiency auxiliary supply in applications that demand a compact
design. The MAX1595 is offered in space-saving 8-pin
µMAX® and high-power 12-pin TQFN packages. Applications Features
o Ultra-Small: Requires Only Three Ceramic
Capacitors
o No Inductors Required
o Up to 125mA Output Current
o Regulated ±3% Output Voltage
o 1MHz Switching Frequency
o 1.8V to 5.5V Input Voltage
o 220µA Quiescent Current
o 0.1µA Shutdown Current
o Load Disconnect in Shutdown White LED Power Ordering Information Flash Memory Supplies …