RT9986 RICHTEK [Richtek Technology Corporation], RT9986 Datasheet - Page 15

• Manufacturer Part Number: RT9986
• Description: 7-CH DC/DC Converter for DSC
• Manufacturer: RICHTEK [Richtek Technology Corporation]

DS9986-00 May 2011
V
(2mV/Div)
OUT_CH2_ac
V
V
V
V
V
V
(10V/Div)
(5V/Div)
(2V/Div)
(2V/Div)
(2V/Div)
(5V/Div)
(2V/Div)
OUT_CH1
OUT_CH2
OUT_CH3
OUT_CH4
OUT_CH5
OUT_CH6
LX2
CH2 Output Voltage Ripple
Power Off Sequence
Power Off Sequence
I
OUT
Time (2.5ms/Div)
Time (500ns/Div)
Time (1ms/Div)
= 400mA, L = 2.2μH, C
V
BAT
= 3.7V, V
OUT
V
V
OUT
BAT
BAT
= 3.3V,
= 10μF
= 3.7V
= 3.7V
V
V
(10mV/Div)
(5mV/Div)
OUT_CH1_ac
OUT_CH3_ac
V
(10V/Div)
V
(5V/Div)
(2V/Div)
(2V/Div)
OUT_CH5
OUT_CH6
LX1
LX3
CH1 Output Voltage Ripple
CH3 Output Voltage Ripple
I
Power On Sequence
OUT
I
OUT
= 400mA, L = 2.2μH, C
Time (500ns/Div)
Time (500ns/Div)
Time (5ms/Div)
= 400mA, L = 2.2μH, C
V
BAT
V
BAT
= 3.7V, V
RT9986
= 3.7V, V
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OUT
V
OUT
OUT
= 10μF x 2
BAT
OUT
= 1.8V,
= 10μF
= 3.7V
= 5V,
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