PRELIMINARY
CM3702
CALIFORNIA MICRO DEVICES
Typical Performance Characteristics (T=25°C)
(Cp=0.47uF, Cs=1.5uF, Co=Cbyp=0.1uF, Iout=100mA)
CM3702 noise spectrum
1.00E-03
1.00E-04
1.00E-05
1.00E-06
1.00E-07
1.00E-08
noise floor
Cs=1.5uF
10
100
1000
Frequency [Hz]
10000
100000
Note: Noise peaks may appear for different values of Cp, Cs & IOUT, and are due to the ripple frequency of the charge pump (see
later).
PSRR with V =3.3V (upper curve) and V =5V (lower curve), IOUT=100mA
IN
IN
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
10
100
1000
10000
100000
Frequency [Hz]
Measured by forcing VIN voltage to 3.3V & 5.0V dc, then sweeping 100mV ac on VIN. COUT = 10uF, CBYP = 0.1uF
© 2004 California Micro Devices Corp. All rights reserved
09/22/04
430 N. McCarthy Blvd, #100, Milpitas, California 95035
Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
4
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
