Description
19-1563; Rev 3; 9/05 KIT ATION EVALU LE B A IL A AV www.DataSheet4U.com Low-Noise Step-Up DC-DC Converters General .
Features.
90% Efficiency.
Adjustable Output from VIN to 12V.
1.
2.
Features
* 90% Efficiency
* Adjustable Output from VIN to 12V
* 1.6A, 0.21Ω, 14V Power MOSFET (MAX1790)
* 2.4A, 0.15Ω, 14V Power MOSFET (MAX8715)
* +2.6V to +5.5V Input Range
* Pin-Selectable 640kHz or 1.2MHz Switching Frequency
* 0.1µA Shutdown Current
Applications
* LCD Displays PCMCIA Cards Portable Applications Hand-Held Devices
+ Denotes lead-free package. Typical Operating Circuit
VIN 2.6V TO 5V
Pin Configuration
TOP VIEW
COMP
IN ON/OFF
SHDN
1 2 3
8 7
SS FREQ IN LX
VOUT LX
FB SHDN
MAX1790 MAX8715 FREQ GND
MAX1790 MAX8715
6 5
GND 4
μMAX
SS CO