sip12202 Vishay, sip12202 Datasheet - Page 7

• Manufacturer Part Number: sip12202
• Description: Synchronous Step Down Controller
• Manufacturer: Vishay

TYPICAL WAVEFORMS
Document Number: 73542
S-52332–Rev. B, 07-Nov-05
V
IN
= 5 V, V
V
V
IN
IN
= 5 V, V
= 5 V, V
OUT
Typical Switching Waveform
Output Filter Cap = 220 µF x 2
Output Filter Cap = 220 µF x 2
= 2.5 V, Load Current = 5 A, L = 1.5 µH,
OUT
OUT
C
OUT
= 2.5 V, Load Current = 1 A,
= 2.5 V, Load Current = 1 A,
Shut Down
Soft Start
1 ms/div
1 ms/div
1 µs/div
= 220 µF x 2
Comp/SD = 1 V/div
V
Inductor Current
5 A/div
Comp/SD = 1 V/div
V
P
Inductor Current
5 A/div
OUT
DH = 5 V/div
V
DL = 5 V/div
Inductor Current
5 A/div
OUT
G
LX
= 5 V/div
New Product
= 1 V/div
= 5 V/div
= 1 V/div
V
IN
= 5 V, V
V
IN
= 5 V, V
OUT
L = 1.5 µH, C
L = 1.5 µH, C
Load Transient Response
= 2.5 V, Load Current = 1 A to 8 A Step,
Output Voltage Ripple
OUT
= 2.5 V, Load Current = 1 A,
10 µs/div
1 µs/div
OUT
OUT
= 220 µF x 2
= 220 µF x 2
Vishay Siliconix
SiP12202
www.vishay.com
V
Inductor Current
5 A/div
V
OUT
OUT
= 500 mV/div
= 20 mV/div
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