求助

mzb66

小弟对以下手机电子料不懂，请各位帮忙[52RD.com]
REG LP3990YDX-1.5V LLP-6 ~　LLP6[52RD.com]
STEP-UP DC/DC CONV  SON3024-8~SON3024_8[52RD.com]
VREG LP3985ITLX-2.8 NOPB  USMD5~USMD5_1.47X1.04_H0.675[52RD.com]
14XLEVEL SHIFTER ST16C32245TBR uTFBGA42~TFBGA_42[52RD.com]
RETU 3.02 TSA1GJWE  TFBGA108~TFBGA_108[52RD.com]
TAHVO V4.1 LEADFREE  TFBGA84 6X6~TFBGA_84_6.15X6.15[52RD.com]
WHITE LED DRIVER 4LEDS  500MW 8BUMP USMD8~USMD8_1.69X1.69[52RD.com]
DC/DC CONV LM3661-1.40V/  1.05V NOPB~USMD_10_2.458X1.899[52RD.com]
REG+ LP3999ITLX 1.8V 150MA  NOPB~USMD5_1.468X1.036[52RD.com]
RF ASIC HINKU310A TFBGA84 ~　TFBGA_84_6.15X6.15[52RD.com]
RF ASIC VINKU314A TFBGA64 ~　TFBGA64_H1.2[52RD.com]
PW AMP PF09014B_CUT5.3  QUADBAND~RITSA_PA_REL3[52RD.com]
PW AMP PF57603B CUT8.1  1920-1980MHZ~PW_AMP_PF57603B[52RD.com]
DC CONV SUPA LM2706 PBFREE ~　USMD10_2.534X2.026[52RD.com]
REG LP3981YDX 2.8/NOPB  0.3A LLP-6~LLP_6