rt9903 Richtek Technology Corporation, rt9903 Datasheet - Page 10

• Manufacturer Part Number: rt9903
• Description: Channel Dc/dc Converters With High-efficiency Step-up
• Manufacturer: Richtek Technology Corporation

RT9903
www.richtek.com
10
V
V
V
BAT
BAT
BAT
CH4
= 3V, V
= 2V, V
= 2.5V, V
V
Load Transient Response
V
DD
DD
LX4
LX4
DD
= 3.3V, @I
= 3.3V, @I
Time (1ms/Div)
= 3.3V, @I
Time (1us/Div)
&
Time (1us/Div)
&
Output Ripple
Output Ripple
OUT
OUT
OUT
= 100mA
= 100mA to 350mA
= 100mA
Preliminary
V
V
V
BAT
BAT
BAT
CH4 Load
= 2.5V, V
= 3V, V
= 2.5V, V
V
V
DD
LX4
LX4
DD
DD
= 3.3V, @I
= 3.3V, @I
= 3.3V, @I
Time (1ms/Div)
Time (1us/Div)
Time (1us/Div)
&
&
Transient Response
Output Ripple
Output Ripple
DS9903-07 August 2007
OUT
OUT
OUT
= 350mA
= 100mA to 350mA
= 350mA