onsemi NCP1523
The NCP1523 step−down PWM DC−DC converter is optimized for portable applications powered from 1−cell Li−ion or 3 cell Alkaline/NiCd/NiMH batteries. The device is available in an adjustable output voltage from 0.9 V to 3.3 V. It uses synchronous rectification to increase efficiency and reduce external part count.FEATURES
● Sources up to 600 mA● 3 MHz Switching Frequency
● Up to 93% Efficiency
● Synchronous rectification for higher efficiency
● Thermal limit protection
● Shutdown current consumption of 0.3 mA
● These are Pb−Free Devices Special
FEATURES
for NCP1523FCT2G● Auto PFM/PWM mode solution
● High efficiency at light load Special
FEATURES
for NCP1523BFCT2G● Load Transient Highly Efficient Solution
● Very small Output Voltage Ripple
● Adjustable Output Voltage from 0.9 V to 3.3 V Typical
APPLICATIONS
● Cellular Phones, Smart Phones and PDAs● Digital Still Cameras
● MP3 Players and Portable Audio Systems
● Wireless and DSL Modems
● Portable Equipment A1 FLIP−CHIP−8 CASE 766AE MARKING DIAGRAM NCPxxxxG AYWW A1 NCPxxxx = A= Y= WW = G= Device Code xxxx = 1523 or 523B Assembly Location Year Work Week Pb−Free Package PIN CONNECTIONS A1 A2 B1 B2 C1 C2 D1 D2 Top View (Bumps Below) PIN: A1 − GND A2 − VIN B1 − SW B2 − EN C1 − GND C2 − ADJ D1 − VOUT D2 − FB ORDERING INFORMATION Device Package Shi...