rt9259 Richtek Technology Corporation, rt9259 Datasheet - Page 7

• Manufacturer Part Number: rt9259
• Description: Synchronous Buck Dc-dc Linear Power Controller
• Manufacturer: Richtek Technology Corporation

(100mV/Div)
(500mV/Div)
DS9259-03T00 August 2007
(2.5A/Div)
(2mV/Div)
(20V/Div)
(0.5A/Div)
(10A/Div)
UGATE
V
I
I
V
L
LDO
LOAD
V
I
L
OUT1
OUT1
OUT2
Transient Response
Transient Response
Time (100μs/Div)
Time (2.5μs/Div)
Time (1ms/Div)
Start Up
V
I
LOAD
V
I
IN2
LOAD
IN1
= 12V, V
= 1A to 100mA
= 12V, V
= 1A to 20A
OUT2
OUT1
No Load
= 2.5V
= 2V
(500mV/Div)
(500mV/Div)
(100mV/Div)
(500mV/Div)
(20V/Div)
(10V/Div)
(10A/Div)
(20V/Div)
(1V/Div)
RT_Dis
V
I
LDO
LGATE
UGATE
COMP
V
LOAD
V
I
LOAD
OUT1
IN1
OUT2
= 12V, V
= 20A
= 20A to 1A
Under Voltage Protection
Transient Response
OUT1
Time (10ms/Div)
Time (1ms/Div)
Time (10μs/Div)
= 2V
Start Up
RT9259
www.richtek.com
V
IN2
UGATE
V
= 0V
OUT
I
L
7