W-CDMA/N-CDMA Cellular Phone HBT PA Management ICs

General Description The MAX1958/MAX1959 power amplifier (PA) power-management ICs (PMICs) integrate an 800mA, dynamically adjustable step-down converter, a 5mA Rail-to-Rail® operational amplifier (op amp), and a precision temperature sensor to power a heterojunction bipolar transistor (HBT) PA in

文件：799.09 Kbytes 页数：24 Pages

MAXIM

美信

PCS 3.4V CDMA & CDMA2000-1X PowerEdge Power Amplifier Module

General Description The RMPA1959 power amplifier module (PAM) is designed for CDMA and CDMA2000-1X personal communications system (PCS) applications. The 2 stage PAM is internally matched to 50Ω to minimize the use of external components and features advanced DC power management to reduce current

文件：562 Kbytes 页数：11 Pages

FAIRCHILD

仙童半导体

Single Phase Synchronous-Rectified Buck Converter

文件：175.87 Kbytes 页数：13 Pages

UPI

力智电子

Single Phase Synchronous-Rectified Buck Converter

文件：189.05 Kbytes 页数：11 Pages

UPI

力智电子