RT5035C/D
Pin No.
Pin Name
Pin Function
Sense pin of CH5 output voltage. This pin is also the feedback pin for VOUT5 if
I
2
C is set to use the external resistor. When turning off, the IC discharges CH5
output capacitors internally until VOUT5 < 0.1V. Recommend that output
capacitors are as close as possible to the IC. This pin is in high impedance
during shutdown.
Regulated output node of CH8 generic LDO. When turning off, RT5035C/D
would discharge CH8 output capacitors internally till VOUT8 < 0.1V. This pin is in
high impedance during shutdown.
Power input node of CH8 generic LDO. This pin is in high impedance during
shutdown.
Switch node of CH3. This pin is in high impedance during shutdown.
RTC 32768Hz clock output pin. Its rails are VDDM and GND. When
RESET
goes low, C32K outputs low.
Power input pin of CH3 and it must connect to the same node as BAT. This pin is
in high impedance during shutdown.
Sense pin of CH3 output voltage. This pin is also the feedback pin for VOUT3 if
I
2
C is set to use the external resistor. When turning off, the IC discharges CH3
output capacitors internally until VOUT3 < 0.1V. Recommend that output
capacitors are as close as possible to the IC. This pin is in high impedance
during shutdown.
Ground pin for RTC timer counter and oscillator.
Crystal output. This pin’s parasitic capacitance should be kept as low as
possible. Noise interference should also be avoided.
Crystal input. This pin’s parasitic capacitance should be kept as low as possible.
Noise interference should also be avoided.
RTCLDO power pin. Connect this pin to a backup battery
Regulation voltage output of CH9 keep-alive LDO. It also provides power for all
IC control circuit.
PLL synchronous input pin.
Power output and sense pin for CH1 output voltage. Recommend that output
capacitors are as close to RT5035C/D as possible. This pin is in high impedance
during shutdown.
RT5035C/D power ground and control circuit ground. Exposed PAD should be
soldered to PCB and connected to GND.
27
VOUT5/FB5
28
VOUT8
29
30
31
32
PVDD8
LX3
C32K
PVDD3
33
VOUT3/FB3
34
35
36
37
38
39
40
RTCGND
XOUT
XIN
RTCPWR
VDDM
SYNC
VOUT1
41
GND
(Exposed Pad)
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4
DS5035C/D-01
February 2020
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
