rt8297a Richtek Technology Corporation, rt8297a Datasheet - Page 9

• Manufacturer Part Number: rt8297a
• Description: 1.5a, 17v, 340/800khz Synchronous Step-down Converter
• Manufacturer: Richtek Technology Corporation

(100mV/Div)
DS8297A/B-00 March 2011
(5mV/Div)
(10V/Div)
V
PGOOD
(5V/Div)
(1A/Div)
(1A/Div)
(5V/Div)
(2A/Div)
(2V/Div)
V
OUT
V
V
I
I
OUT
V
OUT
SW
OUT
OUT
I
EN
L
RT8297A
RT8297A
RT8297A
V
Load Transient Response
IN
= 12V, V
Power On from EN
V
V
Time (500μs/Div)
IN
IN
Time (1ms/Div)
Time (5μs/Div)
Switching
= 12V, V
= 12V, V
OUT
= 3.3V, I
OUT
OUT
= 3.3V, I
= 3.3V, I
OUT
= 0.1A to 1.5A
OUT
OUT
= 1.5A
= 1.5A
(50mV/Div)
(5mV/Div)
(10V/Div)
PGOOD
(5V/Div)
(5V/Div)
V
(2V/Div)
(2A/Div)
(1A/Div)
(1A/Div)
V
V
OUT
V
V
I
I
OUT
OUT
OUT
SW
OUT
I
EN
L
RT8297B
RT8297B
V
Load Transient Response
IN
= 12V, V
Power Off from EN
V
V
Time (500ns/Div)
Time (100μs/Div)
IN
IN
Time (1ms/Div)
= 12V, V
Switching
= 12V, V
OUT
RT8297A/B
= 3.3V, I
OUT
OUT
= 3.3V, I
= 3.3V, I
OUT
www.richtek.com
= 0.1A to 1.5A
OUT
OUT
RT8297A
= 1.5A
= 1.5A
9