RT9986A Datasheet, PDF (15/24 Pages) Richtek Technology Corporation – 7-CH DC/DC Converter for DSC

RT9986A
VOUT_CH1
(5V/Div)
VOUT_CH2
(2V/Div)
VOUT_CH3
(2V/Div)
VOUT_CH4
(2V/Div)
Power Off Sequence
Power On Sequence
VOUT_CH5
(10V/Div)
VOUT_CH6
(5V/Div)
Time (1ms/Div)
VBAT = 3.7V
Power Off Sequence
Time (5ms/Div)
VBAT = 3.7V
CH1 Output Voltage Ripple
VOUT_CH5
(10V/Div)
VOUT_CH6
(5V/Div)
Time (2.5ms/Div)
VBAT = 3.7V
LX1
(2V/Div)
VOUT_CH1_ac
(10mV/Div)
VBAT = 3.7V, VOUT = 5V,
IOUT = 400mA, L = 2.2μH, COUT = 10μF x 2
Time (500ns/Div)
CH2 Output Voltage Ripple
CH3 Output Voltage Ripple
LX2
(2V/Div)
VOUT_CH2_ac
(2mV/Div)
LX3
(2V/Div)
VBAT = 3.7V, VOUT = 3.3V,
IOUT = 400mA, L = 2.2μH, COUT = 10μF
Time (500ns/Div)
VOUT_CH3_ac
(5mV/Div)
DS9986A-00 May 2011
VBAT = 3.7V, VOUT = 1.8V,
IOUT = 400mA, L = 2.2μH, COUT = 10μF
Time (500ns/Div)
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