rt9245c Richtek Technology Corporation, rt9245c Datasheet - Page 11

• Manufacturer Part Number: rt9245c
• Description: Multi-phase Controller Core Power Supply
• Manufacturer: Richtek Technology Corporation

Typical Operating Characteristics
DS9245C-02 March 2007
UGATE
LGATE
PWM
PWM
V
V
V
SS
ADJ
700
600
500
400
300
200
100
SS
I
L
0
0
CH1:(5V/Div)
CH2:(5V/Div)
CH1:(5V/Div)
CH2:(5V/Div)
CH3:(20V/Div)
CH4:(10V/Div)
Relationship Between Inductor
10
Power-On @ I
Adjustable Frequency
20
Current and V
Time (25ms/Div)
Time (10ms/Div)
R
30
RT
(kΩ)
(kW)
40
OUT
ADJ
CH3:(50mV/Div)
CH4:(20A/Div)
= 60A
50
60
70
UGATE
LGATE
V
V
PWM
COMP
CORE
70
60
50
40
30
20
10
0
0.5
R
L = 0.3μH, C = 5600μF
RT
(5mV/Div)
= 16kΩ
1
Power-Off @ I
PWM vs. V
1.5
Time (2.5μs/Div)
Time (10μs/Div)
V
Ripple
COMP
2
RT9245C
(V)
OUT
COMP
2.5
www.richtek.com
= 60A
CH1:(5V/Div)
CH2:(20V/Div)
CH3:(10V/Div)
CH4:(1V/Div)
3
11
3.5