ZA3020 Datasheet, PDF (7/10 Pages) List of Unclassifed Manufacturers – 2A STEP DOWN PWM SWITCH MODE DC DC REGULATORS

ZA3020
2A Step-Down, PWM, Switch-Mode
DC-DC Regulators
Figure 3: ZA3020 with Murata 22µF / 10V Ceramic Output
INPUT
4.75 to 25V
C1
IN
10µF/35V
C5
10nF
BS
OPEN
NOT USED
EN _ZA3020
SW
D1
SYNC
FB
GND
COMP
C6
100pF
C3
22nF
R3
10K
L1
15µH
R2
10.5K
R1
10K
OUTPUT
2.5V/3A
C2
22µF/10V
Ceramic
Figure 4: ZA3020 with Panasonic 47µF / 6.3V Special Polymer Output Capacitor
INPUT
4.75 to 25V
C1
10µF/50V
OPEN
NOT USED
C5
10nF
IN
BS
EN _ZA3020
SW
D1
SYNC
FB
GND
COMP
C6
100pF
C3
22nF
R3
4.99K
Note 1: For VOUT<2.5V R3 = 4.7Kȍ
L1
15µH
R2
10.5K
R1
10K
OUTPUT
2.5V/3A
C2
47µF/6.3V
Panasonic SP
ZA3020 Rev. 3.5 2003-04-22
www.vimicro.com
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