Datasheet

Analog Integrated Circuit Device Data
26 Freescale Semiconductor
34704
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Table 6. Regulator Analysis Table
REG1 REG2 REG3 REG4 REG5 REG6 REG7 REG8
Vin (V)
3.60 3.60 3.60 3.60 3.60 3.60 3.60 3.60
Vout (V)
5.00 3.30 1.20 1.80 3.30 15 -7 15
Iout_typ (A)
0.100 0.200 0.150 0.100 0.150 0.050 0.050 0.015
Iout_max (A)
0.500 0.500 0.550 0.300 0.500 0.060 0.060 0.030
DCR(mΩ)
230 230 230 310 230 230 230 230
Cout (μF)
22 22 22 22 22 22 22 22
ESR (mΩ)
9.00 9.00 9.00 9.00 9.00 9.00 9.00 9.00
Fsw (kHz)
1500 1500 1500 1500 1500 1000 1000 1000
Lout (μH)
1.50 1.50 1.50 1.50 1.50 4.70 4.70 4.70
Iin_typ (A)
0.154 0.201 0.063 0.059 0.150 0.254 0.107 0.077
Iin_max (A)
0.540 0.502 0.209 0.178 0.501 0.304 0.128 0.154
ILout_peak (A)
0.724 0.510 0.649 0.444 0.512 0.444 0.443 0.297
ICout_RMS (A)
0.212 0.005 0.074 0.076 0.0006 0.071 0.129 0.043
Pout (W)
0.500 0.660 0.180 0.180 0.495 0.750 0.350 0.225
Ploss On Chip (W)
0.042 0.047 0.038 0.028 0.034 0.135 0.000 0.045
Ploss Total (W)
0.044 0.049 0.041 0.030 0.035 0.145 0.027 0.047
Pin (W)
0.544 0.709 0.221 0.210 0.530 0.895 0.377 0.272
n (%)
91.90% 93.12% 81.48% 85.91% 93.33% 60.00% 69.00% 64.00%
Table 7. 34704A overall system efficiency 84%
Overall System
Pout (W)
3.340
Ploss On Chip (W)
0.369
Ploss Total (W)
0.41
Pin (W)
3.75
n (%)
84.00%
Table 8. 34704B overall system efficiency 89%
Overall System
Pout (W)
1.74
Ploss On Chip (W)
0.192
Ploss Total (W)
0.202
Pin (W)
1.942
n (%)
89.6%