CM3706 Datasheet, PDF (7/11 Pages) Champion Microelectronic Corp. – 1.5MHz, 600mA Synchronous Step-Down Regulator

CM3706
1.5MHz, 600mA Synchronous
Step-Down Regulator
Output Voltage vs Temperature
1.23
1.22
1.21 Vin=5V
1.2
Vout=1.2V
ILoad=600mA
1.19
1.18
1.17
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
TEMPERATURE (℃)
Pulse Skipping Mode Operation
Discontinuous Operation
SW
1V/DIV
ILo a d
20mA/DIV
Vin=3.6V
1us
Vout=1.8V
Ilo a d =1 0 .2 9 m A
Load step
Vout
2 0 m V/D IV
SW
1 V/ D IV
ILoa d
2 0 m A/ D IV
Vin =3 .6 V
Vo u t= 1 .8 V
Iloa d=22.24mA
0.2 u s
Load step
Vout
20mV/DIV
ILo a d
0.2A/DIV
Vin=5V
200us
Vout=2.5V
ILOAD=0mA TO 600mA
ILo a d
0.2A/DIV
Vin=5V
200us
Vout=2.5V
ILOAD=50mA TO 600mA
Start-Up from shutdown
Vo u t
0 .5 V/D IV
ILoa d
20 0mA/DIV
Vin=3.6 V
Vou t=1 .2 V
Iloa d =6 00 mA
0 .5 m s
Load step
Vout
20mV/DIV
ILo a d
0.2A/DIV
Vin=5V
500us
Vout=2.5V
ILOAD=100mA TO 600mA
2006/12/20Rev. 1.6
Champion Microelectronic Corporation
Page 7